Training guide

How to use a weighted vest: how heavy, walking and strength work, bones and weight loss, your back and joints, and who should wait

A weighted vest adds a few kilograms around your chest and back. Used for a walk or a strength session, it makes the work a little harder, a bit like a light rucksack. Worn about the house, or walked in, it hasn't been shown to build bone: in the largest trial, older adults who wore one about 7 hours a day while losing weight lost about as much hip bone as those who didn't wear one.

This guide covers how heavy to start (about 5% of your body weight), how long and how often, walking and strength moves with a vest, what the trials found for bone, muscle and weight, your back, knees and balance, who should wait, and a follow-along workout.

The short version

Extra weight for a walk or a workout

A weighted vest holds weights in pockets or plates around your chest and back, usually somewhere between 3% and 20% of your body weight, Osteoporosis Canada says. It spreads the load front and back, where a rucksack sits behind you.

Source 1

Walking in one isn't a bone treatment

Wearing a vest 2 hours a day, walking with one, and wearing one about 7 hours a day during weight loss all failed to improve bone in trials. Osteoporosis Canada finds "little to no evidence" that walking in a vest raises bone density. Strength training and impact work are what help bone.

Sources 2, 3, 4, 1

As resistance for strength moves, it works like any weight

Vest-loaded strength, step and power work improved strength and chair rising in small trials in older adults, and helped bone against doing nothing. Adding a vest to the same exercise hasn't been shown to help bone more, and Osteoporosis Canada sees a vest mainly as a way to make strength exercises harder.

Sources 5, 6, 7, 1

Start at about 5% of your body weight

Our editorial starting point: about 5% of your body weight (3% if you're older or unsteady), adding 1 to 2% at a time, up to about 10% for walking and about 15% for strength moves. Wear it for a session, not all day.

Sources 1, 8

It adds less than you'd think to a walk

By our arithmetic, a vest of 10% of your body weight adds about 9% to the energy cost of walking (above resting) at the same speed: roughly 10 calories in a brisk 30-minute walk for a 70 kg person. A hill or a faster pace adds more.

Sources 9, 10

Mind your back and your balance

Back pain was the commonest complaint in vest trials, and a vest adds load to your spine, more so when you bend or twist. Take it off to bend, lift or do floor exercises, and build your balance without it first if you're unsteady.

Sources 4, 11, 1

What a weighted vest is, and what it loads

The kit

A vest, harness or plate carrier worn snug on your trunk, with fixed or removable weights. Osteoporosis Canada describes "a vest that has compartments where you can add weight", worn "while walking, or during daily activities or exercise". A vest you can take weights out of lets you start light and add small steps, which matters more than how heavy it can go.

Source 1

What it loads

Everything you stand on: your feet, ankles, knees, hips and spine. Each step lands a little harder, and your trunk muscles work to hold the extra weight upright. A vest sits closer to your middle than a backpack and costs a little less energy than the same weight on your back at heavy loads.

Sources 12, 9

What it doesn't do on its own

Bone and muscle respond to hard, varied loading. Wearing a few kilograms while you go about your day adds little of that, which is why trials of wearing a vest found nothing, and why our bone density guide puts strength training and impacts first.

Sources 2, 8

Before you start

You should be able to walk briskly for 30 minutes without the vest, as our rucking move page asks before a pack, and do the strength moves well without it. Osteoporosis Canada's advice: "practice the exercises without the vest first".

Source 1

How people differ

Set the load as a share of your own body weight, as our rucking guide does for a pack. Vests fit bodies differently and some ride up or press on the chest, so check you can breathe deeply and swing your arms in it (our suggestion). Putting a vest on over your head can be hard: half of one trial's vest group needed help, and a vest that opens at the side avoids that.

Source 13

How heavy, how long and how often

No trial has tested a build-up for the public. These loads are our editorial starting point, from vest trials in older adults and Osteoporosis Canada's advice.

First sessions: about 5% of your body weight

About 3.5 kg for a 70 kg person (our arithmetic), or 3% if you're older, unsteady, or have back problems or osteoporosis. Osteoporosis Canada assumes the risk is low at about 3% of body weight, a 2026 review suggests 1 to 5% for older adults, and trials started at 3 to 5%.

It starts lighter than our rucking guide's pack (about 10%) because vests are often used by older adults, sometimes worn for longer, and the vest trials mostly used 3 to 10%.

Sources 1, 8, 2, 14

Building up

Add 1 to 2% of your body weight at a time, no more than once a week, and only when your last session left nothing sore the next morning (our editorial suggestion; one trial added 2% a week). Change one thing at a time: weight or time, never both, as our rucking guide says.

Source 3

Where to stop

About 10% for walking, which is our rucking guide's starting pack and the most INVEST and other vest walking trials used; up to about 15% for strength moves if you need it, the most used in trials of older adults and women after the menopause. Stay well under our ceiling for any carried load, about 30% of your body weight.

Sources 4, 13, 15, 11

How long and how often

Wear it for the walk or the session, not all day: 20 to 45 minutes, 2 or 3 times a week, on non-consecutive days at first (our editorial starting point). Trials that walked with a vest did 30 minutes 3 times a week. Trials that had people wear one for hours a day didn't help bone or strength and brought more aches.

Sources 3, 14, 13, 2, 4, 16

Pace

Walk briskly enough that you can talk but not sing, a little slower than without the vest at first. Moderate walking like this counts toward the 150 minutes a week the NHS recommends.

Source 17

Your first vest walk, step by step

No 3D demo shows a weighted vest: the figure shows the walk. Practising without the vest and taking it off to bend follow Osteoporosis Canada's advice; even loading follows our rucking guide's "Keep it even"; the rest is our editorial suggestion.

  1. Practise the walk and any strength moves without the vest first.
  2. Load the vest evenly, front and back and left and right, so nothing can shift.
  3. Put it on sitting down, or with help if it goes over your head.
  4. Tighten it so it doesn't bounce, but you can breathe deeply and swing your arms.
  5. Stand tall: don't lean forward into the load or let it round your shoulders.
  6. Walk at your normal stride, a little slower than usual at first, at a pace where you can talk but not sing.
  7. Take the vest off to sit down for long, to bend to the floor, to lift things or for floor exercises.
  8. Afterwards, check your back, shoulders and feet. Anything sore the next morning means repeating that load before adding more.

Loading the 3D figure…

Gets into position, then repeats the movement. Technical checks passed; qualified exercise review is pending.

The movement on the figure: Treadmill walking

Bones: what the trials found

Wearing a vest or walking in one didn't help boneEmerging evidence

In 62 older adults, wearing a vest of 3% or 5% of body weight for 2 hours a day, 4 days a week, for 27 weeks didn't change bone markers, strength, function or quality of life. In 48 working women walking 30 minutes 3 times a week, a vest built up by 2% of body weight a week to 8% did no better than walking without it for bone markers or fitness over 12 weeks.

Sources 2, 3

The INVEST trial: a vest during weight lossStrong evidence

150 adults aged 60 to 85 living with obesity dieted for 12 months alone, with a vest, or with strength training. The vest group wore theirs a mean 7.1 hours a day, topped up each week to replace the weight they lost, up to 10% of their starting weight. Hip bone fell in every group (total hip trabecular density -1.9% with diet alone, -1.2% with the vest, -1.4% with strength training), and the vest made no clear difference. Its authors: "neither weighted vest use nor progressive RT was able to mitigate WL-associated bone loss at the hip".

An exploratory analysis hints that a vest might matter only for people who spend more time upright, and the small pilot before INVEST had hinted at less hip loss. Neither is proof.

Sources 4, 18, 19

With jumping or strength work, vests did better than doing nothingEmerging evidence

9 women after the menopause who did vest exercise and jumping 3 times a week, 32 weeks a year, for 5 years kept their hip density (-0.82%), while 9 who didn't lost 3.80%. Women before the menopause doing jumps and vest-loaded strength work gained 2.2 to 2.7% at the top of the thigh bone, against 0.7%. Across 9 trials, vest exercise beat usual activity for hip and spine bone, but adding a vest to the same exercise didn't help bone more, in the one trial that tested it.

Sources 20, 21, 7

Shorter trials found littleMixed evidence

9 months of vest exercise didn't change hip bone in 44 women aged 50 to 75; 6 to 12-week trials found changes only in bone markers; and teenage girls doing vest exercise plus jumps gained no more bone than girls who didn't.

Sources 5, 15, 14, 22

What osteoporosis experts sayStrong evidence

Osteoporosis Canada finds "little to no evidence" that wearing a vest in everyday life or while walking raises bone density, and says "the few studies that do report benefits are often flawed". Walking is low-impact for bone, the Royal Osteoporosis Society says. For bone, the UK consensus asks for strength training on 2 to 3 days a week and about 50 moderate impacts on most days if impact suits you, as our bone density guide sets out.

Sources 1, 23, 24

What the evidence says: strength, power and function

Vest-loaded strength training works like other resistanceEmerging evidence

In 44 women aged 50 to 75, 9 months of vest exercise 3 times a week raised lower-body strength by 16 to 33%, power by 13% and leg muscle by 3.5%, and improved side-to-side stability. In a power programme where older adults wore vests during exercises "specific to mobility tasks", part of each done as fast as possible, 21 women aged 70 and over improved leg power and chair rising more than a slow, light group, and 138 older adults with limited mobility improved leg power more than with a standard strength programme, with both improving function by a similar amount.

Sources 5, 25, 6

A vest with a home programme and a walkEmerging evidence

In 19 older adults doing home exercises and a 30-minute walk 3 times a week for 12 weeks, those wearing a vest of 10% of body weight improved more on 5 of 12 measures, including about 92 m further in a 6-minute walk test. It was a small pilot trial.

Source 13

Not every trial found a gainMixed evidence

In 80 women with low bone density and a healed wrist fracture, 6 months of vest exercise did no better than an education programme at a year. An 8-week trial in 31 women comparing a vest, a vibration platform and plain exercise was too short to say much about bone.

Sources 26, 27

Wearing beats nothing only when you work in itEmerging evidence

A 2026 review of 15 studies in older adults found that "low-load wear-only protocols generally did not demonstrate measurable improvements in musculoskeletal outcomes", while progressive, task-based vest exercise helped. That's a narrative review, so treat it as a summary, not a pooled result.

Sources 8, 2

A vest has limits as a weight

Osteoporosis Canada says a vest "does not allow for a broad range of difficulty levels" and "would not be our first choice for a source of resistance", though it suits people "who cannot grip things". Dumbbells or machines let you progress further.

Source 1

Calories and weight loss

The energy cost of walking in a vestStrong evidence

A 2024 equation for walking in a vest was built on 20 young military adults carrying vests of 22 to 66% of their body mass, and checked against 12 other data sets of 264 people. By our arithmetic from it, a vest raises the cost of walking above resting by about 4% at 5% of your body weight, 9% at 10%, 14% at 15% and 20% at 20%, at the same speed. That's about the same as a pack at light loads and a little less at heavy ones.

In smaller lab studies, vests of 10 to 20% raised oxygen use at every load in 10 young adults, and a 6 to 9 kg vest made walking clearly harder only on a 10% slope in 20 adults.

Sources 9, 12, 28

Calories: a few more, not manyEmerging evidence

The Compendium of Physical Activities gives brisk walking 4.8 METs (multiples of the energy you use at rest): about 170 calories in 30 minutes for a 70 kg person. A vest of 5 to 10% of body weight adds roughly 5 to 10 calories to that, by our arithmetic. Our calories burned calculator does the sum for your weight.

Sources 10, 9

All-day vests and weightEmerging evidence

In 72 adults with obesity, a vest of 11% of body weight worn 8 hours a day for 3 weeks cut weight by 1.37% (about 1.3 kg) and fat by 4.04% against a 1% vest, but 37.1% reported a side effect against 16.2%. In a 5-week trial of the same idea, fat fell 2.60% and lean mass rose 1.40%, with no change in weight, more side effects (29 against 6) and about 32 more minutes a day spent sitting.

Sources 16, 29

During dieting, a vest changed littleMixed evidence

In INVEST, a vest didn't change fat or lean mass against diet alone. In its 37-person pilot, the vest group lost less leg power, and a follow-up of 18 of them 2 years later hinted at less weight regain, a result that could have been chance.

Exercise alone takes weight off slowly, as our weight loss guide explains: walking more, a little faster or uphill, and eating a little less will do more than a vest.

Sources 4, 30, 11, 31

Your back, joints and balance

Back pain was the commonest complaintEmerging evidence

In the INVEST trial's supplement table, 12% of the vest group reported back pain against 2% with diet alone and 6% with strength training; the trial didn't test these figures statistically. In its pilot, "Five participants reported adverse events from wearing the vest (all back pain or soreness)", and about a quarter of the vest group had to stop or lighten it. All-day vests of 11% of body weight brought aches and pains in about 1 in 5 people.

Sources 4, 11, 16

More load on the spine when you bendEmerging evidence

Osteoporosis Canada: "Wearing a weighted vest can increase the forces on your spine compared to not wearing a vest, especially during bending and twisting." In 8 young men, 50 drop jumps with an 8.5 kg vest compressed the spine by 2.14 mm, against 0.62 mm without it. That's why this guide takes the vest off for bending and floor work, and leaves jumping out.

Sources 1, 32

Each step lands harderEmerging evidence

Vests of 10 to 20% of body mass raised the ground forces and how fast they built up with each step in 10 young adults. We found no study showing that light vests harm the knees or hips; if they ache on hills or stairs, keep the vest lighter or leave it off.

Source 12

Balance and falls: a signal to watchMixed evidence

In the INVEST trial's supplement table, 14 falls were recorded in the vest group (24% of people) against 10 (20%) with diet alone and 7 (12%) with strength training; this wasn't tested statistically, and a review calls it a safety signal rather than proof. Osteoporosis Canada warns that a vest "might affect your balance". A small study funded by a vest maker found no change in balance tests with a 10 or 20 lb vest, and walking with a 4 to 8% vest improved a balance test in 36 women with osteoporosis.

Sources 4, 8, 1, 33, 14

What hasn't been studied

We found no study of weighted vests and the pelvic floor, a rounded upper back (kyphosis), spinal fractures or pregnancy. Where this guide gives advice on those, it's our suggestion.

Source 8

Moves with the vest on

The figure shows the moves, not the vest. Walk 20 to 45 minutes at a talk-but-not-sing pace (our editorial starting point). For strength moves, do 2 or 3 sets of 8 to 12, stopping 2 or 3 reps short of failure, as our plans advise: 2 sets of 8 step-ups each side and 3 sets of 6 to 12 incline push-ups as in our strength and balance workout, 2 sets of 8 split squats each side as in our knee strengthening workout, and 10 to 20 calf raises as in our seniors workout. Practise each without the vest first.

Impact and balance, without the vest

The heel drop move page's dose: "20 to 30 drops at first, building toward about 50 impacts on most days, for example 5 sets of 10." Single-leg stands as in our strength and balance workout (2 sets of 20 to 30 seconds each side, next to a counter), heel-to-toe stands and walks as in our seniors workout (hold 10 to 30 seconds, then 5 to 10 steps), and calf and quad stretches for 30 seconds each side, as our hill and stair session ends.

Workouts to follow

Our weighted vest workout puts a vest walk, strength moves and balance work in order. The easy cardio workout is the brisk 30-minute walk to master first, without the vest; the bone and strength workouts need no vest at all.

Weighted vest workout: a walk, then strength moves

A 45-minute session with a weighted vest: a brisk walk, then sit-to-stands, step-ups, split squats and push-ups, with balance work after the vest comes off.

45 minBeginner11 movesCardio machine, A bench or box

Easy cardio workout

A steady 30 to 45 minute cardio session at talk-but-not-sing pace: walk, cycle, row or cross-train, counting toward weekly activity guidelines.

40 minBeginner3 movesCardio machine, A wall

Incline walking workout: hills or a treadmill slope

A 50-minute walk with hills, outdoors or on a treadmill slope: brisk on the flat, slower on the climbs, building from gentle slopes to about 6%.

50 minBeginner5 movesCardio machine, A step

Interval walking workout: 3 minutes fast, 3 minutes easy

A 40-minute walk alternating 3 minutes fast and 3 minutes easy, five times over: the interval walking tested in Japanese trials, built up from three rounds.

40 minBeginner3 movesCardio machine, A wall

Hill and stair conditioning

Stair or hill climbs with the walk down as recovery, then a loaded walk with your rucksack, building towards the hills, pack and days of your trip.

40 minBeginner5 movesA step, Something with weight

Bone-strengthening workout

Impact, strength and balance for stronger bones, following UK osteoporosis consensus advice, with options for every level.

40 minBeginner14 movesA kettlebell, Other / check instructions

Strength and balance workout

Strength and balance in one session: squats, Romanian deadlifts, push-ups, rows, step-ups, back extensions, carries and single-leg balance.

45 minBeginner14 movesA wall, A dumbbell

Strength and balance exercises for seniors

A 40-minute strength and balance session for over-65s, built from the Otago home programme and NHS exercises, using a chair, a counter and a step.

40 minBeginner18 movesA bench or box, Something with weight

Plans

The walking plan builds the brisk walking a vest walk starts from; the plans for women and men over 50 build bone and strength without a vest.

Who should wait or check first

Check first

Speak to a GP first if you haven't exercised for some time, or if you have a medical condition or concerns. Get advice first, too, if you have a health problem, an injury or symptoms, have recently had a heart attack or an operation, or are pregnant or have recently given birth.

If you have a heart condition, follow your cardiac team's advice on how hard to work, and stop for the warning signs above. People with long-term conditions may wish to ask their specialist before starting. With uncontrolled high blood pressure, avoid straining against a held breath; the high blood pressure guide has more.

Source 17

Osteoporosis, spinal arthritis or disc problems

Osteoporosis Canada notes that a vest "adds loads on your spine, which might not be tolerated well in people with arthritis in the spine or disc injuries". Our suggestion: with spinal fractures, ask a physiotherapist before using a vest, and take it off for anything that rounds your back.

With osteoporosis or a past spinal fracture, avoid repeated or loaded deep rounding of the back, and bend from the hips. The osteoporosis guide covers impact and lifting.

You have had a spinal fracture or several low-trauma fractures: see a physiotherapist, at least at the start.

Source 1

Bending and lifting

Modify or avoid exercises that round your back deeply or repeatedly, especially with a weight: sit-ups, toe touches, Pilates roll-downs and curl-ups, and extreme yoga forward folds. Bend from the hips instead. You do not need to avoid bending, twisting or lifting altogether: move smoothly and keep your upper back straight.

If you've fallen or feel unsteady

Build strength and balance before you add other activity, including brisk walking: the UK consensus warns that brisk walking may raise the risk of falls and fractures in people already at risk.

Our suggestion: build strength and balance without a vest first, and when you do use one, start on even ground.

Source 1

Leaking or a feeling of heaviness

The NHS advises people with a prolapse to "avoid physical activities that put a lot of strain on the pelvic floor, like heavy lifting, running and trampolining". We found no study of vests and the pelvic floor. Our suggestion: if a vest brings on leaking or heaviness, take weight out and see our pelvic floor guide or a pelvic health physiotherapist.

You leak urine on impact: treat that first with pelvic floor training.

Source 34

Pregnancy

The NHS says "It's not recommended to start a new vigorous activity in pregnancy, such as running." We found no study of weighted vests in pregnancy. Our suggestion: don't start using a vest in pregnancy; if you already use one, keep it light, stop if it causes pain or leaking, and ask your midwife.

Source 35

Heart conditions and high blood pressure

A vest makes walking harder at the same speed, so slow down when you add weight, and stop for the warning signs below (our suggestion).

Warning signs

Stop and get medical help

If you get chest pain or pressure, feel faint or dizzy, are unusually breathless, or your heart races or beats irregularly during exercise, as our plans advise.

Source 36

Call 999 (911 in the US)

For chest pain that comes on suddenly and doesn't go away, feels tight or like squeezing, spreads to your arms, neck, jaw, stomach or back, or comes with sweating, feeling sick, light-headedness or breathlessness; severe difficulty breathing; someone who faints while exercising; palpitations that don't go away, or come with chest pain, shortness of breath or feeling faint; or a headache that starts suddenly and is extremely painful, especially while lifting or straining, or comes with numbness or weakness, difficulty speaking or loss of vision. The NHS says a bleed on the brain may be more likely when lifting something heavy. Don't drive yourself to A&E.

Sources 37, 38, 39, 40, 41, 42

Suddenly more breathless than usual

Call NHS 111 (in the US, your doctor or an urgent care centre) if you're suddenly more short of breath than usual, or have chest pain with feeling sick or a heartbeat that races, skips or flutters.

Sources 39, 41

A headache brought on by exercise

Ask for an urgent GP appointment or get help from NHS 111 for a headache that's triggered or made worse by coughing, sneezing, bending down or exercising. In the US, contact your doctor or urgent care.

Source 43

During a session

Stop straight away if you feel any pain or become unwell, the NHS says, and contact 111 if your symptoms worry you or don't go away.

A dull ache in your muscles for a day or two after something new is normal. Joint pain that's sharp, gets worse during a set or lingers into the next day means switching to the easier option, and seeing a GP or physiotherapist if it carries on (our plans' rule). Our muscle soreness guide has more.

Source 36

Back pain: call 999 or go to A&E

Call 999 or go to A&E: loss of feeling or numbness around the genitals or bottom, new trouble peeing or controlling your bladder or bowels, changes in genital sensation during sex or problems with erections or orgasm, or pain, tingling, weakness or numbness in both legs. These are signs of cauda equina syndrome, which needs treating in hospital urgently. Don't drive yourself.

Source 44

Back pain: the same day

Same day (GP or NHS 111): back pain and you feel hot, cold, shivery or generally unwell, or severe pain that starts suddenly or is getting worse quickly.

Source 44

Pain spreading down a leg

Call 999 or go to A&E: leg pain with numbness around the genitals or bottom, new trouble starting or controlling peeing, not knowing when you need to poo or losing control of it, sciatica in both legs, or weakness or numbness in both legs that is severe or getting worse. These can be signs of cauda equina syndrome, which needs treating in hospital as soon as possible.

Pain, tingling or numbness spreading below the knee that isn't settling after a few weeks, is getting worse or stops your normal activities: see a GP.

Source 45

Exercising with back pain

Some discomfort during exercise is fine, and it does not mean you are doing damage. Aim for pain you would call mild to moderate, no more than about 5 out of 10. It should settle within an hour or so, and your back should be no worse the next morning. If it is worse, do less next time (fewer reps, a smaller range, a lighter load), not nothing.

New back pain if you're at risk of a spinal fracture

Sudden new back pain after a minor fall, lift, cough or sneeze, from 50 or past the menopause, or if you take long-term steroid tablets; or height loss, a curved spine or a change in posture: see a GP. It can be a spinal fracture.

Unexplained back pain with muscle spasms, loss of height, or a curved spine or change in posture: a possible osteoporotic spinal fracture, more likely with older age or long-term steroid tablets.

Pain in one spot on a bone

Pain in one spot on the shin or a foot bone that you can point to with a fingertip, worse with impact and later present at rest or at night: a possible stress fracture. Stop running and jumping until it has been checked.

One spot on a foot bone that hurts with every step and later at night: a possible stress fracture.

Go to A&E: severe pain after an injury, which can mean a broken bone, or you cannot put any weight on the leg. A stress fracture can become a complete break if you keep loading it.

Your knee

Go to A&E (accident and emergency) if you've injured your knee and it has changed shape, it becomes very swollen very quickly, you felt a pop or snap, you can see bone sticking out, or it's bleeding heavily. Don't drive yourself: ask someone to take you, or call 999 if the pain means you can't move your leg to get there.

Get advice from NHS 111 now: you cannot move the knee or put any weight on it, or it is very painful, badly swollen or has changed shape.

You hurt your knee and cannot take 4 steps, or you are 55 or over and have injured it: get it checked the same day for a broken bone.

Get advice from NHS 111 now: the knee locks, gives way or clicks painfully. Painless clicking is normal.

See a GP: If knee pain doesn't improve within a few weeks.

Source 46

Call 999 (911 in the US) after a fall

  • After a fall: a possible injury to your head, neck, back or hip, or you cannot get up.
  • Call 999 or go to A&E: severe hip pain after a fall or injury, or you cannot stand, walk or put weight on the leg. In an older adult this can be a broken hip; the leg may be at an odd angle or look shorter. Don't drive yourself.

Source 47

See your GP soon (or NHS 111 if you're worried)

  • A fall, or a broken bone from a fall; or two or more falls in a year.

Source 47

A lump in the groin

A lump in the groin, or groin pain with coughing or straining (a possible hernia).

Get help from NHS 111 if you have a hernia (a lump in the groin or tummy) and pain in or around it, a bloated tummy, you feel sick or are being sick, you're vomiting blood or your vomit looks like coffee grounds, you're constipated, you have a high temperature or feel hot, cold or shivery, or you've suddenly become confused.

Call 999 or go to A&E now if you have a femoral hernia (a small lump at the top of the thigh, in the groin) and very bad tummy pain, you feel sick or are being sick, you cannot fart or poo, you have a high temperature or feel hot, cold or shivery, or you've suddenly become confused. It may be strangulated, which is an emergency. Don't drive yourself.

Sources 48, 49

Tingling or weakness in an arm

Our suggestion, from the military reviews, which list "rucksack palsy" and nerve injuries among load-carriage injuries: numbness, tingling or weakness in an arm or hand while carrying a pack means taking the pack off, loosening the shoulder straps and using the hip belt. If it hasn't gone by the next day, or you can't grip, see a GP.

With a vest, our suggestion is the same: loosen the shoulder straps or take weight out, and see a GP if it hasn't gone by the next day.

Heat

Heat exhaustion brings tiredness, dizziness, a headache, feeling or being sick, heavy sweating with pale, clammy skin, cramps, a high temperature and intense thirst. Move to a cool place, drink and cool your skin: you should start to feel better within 30 minutes. To prevent it, the NHS advises more cold drinks, especially when you're active, light, loose clothing, avoiding the sun between 11am and 3pm, and avoiding extreme exercise.

The NHS says to call 999 for signs of heatstroke: still being unwell after 30 minutes of resting somewhere cool, being cooled and drinking; a very high temperature; hot skin that isn't sweating; a fast heartbeat; fast breathing or breathlessness; confusion and lack of coordination; a seizure; or loss of consciousness.

A vest traps heat against your chest and back: on hot days, walk early or late, carry water and take the vest off (our suggestion).

Numb feet

With numb feet from diabetes or another cause, choose low-impact options, wear well-fitting shoes, and check your feet for redness or blisters afterwards; with an open sore or ulcer, do no weight-bearing exercise until your foot team says so.

Common mistakes

Starting heavy because the vest came that way

Take weights out and start at about 5% of your body weight; the risk is lowest at light loads.

Source 1

Wearing it all day

All-day vests didn't help bone or strength in trials, brought more aches, and in one trial people sat more. Wear it for a session.

Sources 2, 4, 29

Bending and lifting with it on

A vest adds more force on your spine when you bend or twist. Take it off for floor work and lifting.

Source 1

Jumping or running in it

Jumping with a vest compressed the spine more in a lab study, and our jump and speed guides found no benefit from loaded jumps or running in a vest.

Source 32

A lopsided load

Load the vest evenly, front and back, left and right, as our rucking guide says for a pack.

Counting on it for bone

Use strength training and impact work for bone; the vest is optional extra resistance.

Sources 1, 24

Myths

"A weighted vest builds bone on its own"Mixed evidence

Wearing a vest or walking with one didn't improve bone in three trials, including the 150-person INVEST trial, and Osteoporosis Canada finds little to no evidence. Vests helped only alongside jumping or strength work, and adding a vest to the same exercise didn't help bone more in the one trial that tested it.

Sources 2, 3, 4, 1, 7

"Wear it all day for the best results"Mixed evidence

All-day vests didn't help bone or strength, brought more aches and back pain, and in one trial people sat about half an hour more a day.

Sources 2, 4, 16, 29

"A weighted vest burns loads more calories"Mixed evidence

A vest of 10% of your body weight adds about 9% to the cost of walking above resting at the same speed, roughly 10 calories in a brisk 30-minute walk at 70 kg (our arithmetic).

Sources 9, 10

"The heavier the vest, the better the workout"Mixed evidence

Heavier vests cost more energy, but back pain was the commonest complaint even at 7 to 11% of body weight. A hill or a faster pace adds more effort for less load, as our rucking guide says for packs.

Sources 11, 16, 9

"Weighted vests are safe for everyone because the weight is spread out"Mixed evidence

A vest adds load on the spine, more when bending and twisting, and may affect your balance. INVEST recorded more falls in its vest group, though this wasn't tested statistically.

Sources 1, 4

Questions people ask

How heavy should a weighted vest be?

Start at about 5% of your body weight, or 3% if you're older, unsteady or have back problems, and build to about 10% for walking: about 3.5 kg rising to 7 kg at 70 kg. Trials in older adults used 3 to 15%, and our ceiling for any carried load is about 30%.

How long should you wear a weighted vest?

For the walk or the workout: about 20 to 45 minutes, 2 or 3 times a week. Trials that had people wear one for hours a day didn't improve bone or strength and brought more aches.

Is walking with a weighted vest good for you?

It makes walking a little harder, so your heart, lungs and legs work a bit more. But it hasn't been shown to build bone, and a hill or a faster pace adds more effort than a light vest.

Does a weighted vest help osteoporosis?

Not on its own. Wearing one or walking in one didn't improve bone in trials, and Osteoporosis Canada finds little to no evidence. Strength training and impact work are what help, and with spinal fractures, ask a physiotherapist before using a vest.

Does a weighted vest help you lose weight?

A little at most. A vest of 11% of body weight worn 8 hours a day took off about 1.4% of body weight in 3 weeks in one trial, and in older adults who were dieting a vest made no difference to fat or muscle.

How many extra calories does a weighted vest burn?

Not many: a vest of 10% of your body weight adds about 9% to the cost of walking, roughly 10 calories in a brisk 30-minute walk for a 70 kg person, by our arithmetic. Our calories burned calculator does the sum for your weight.

Is a weighted vest bad for your back?

It can be: back pain was the commonest complaint in vest trials, and a vest adds load on your spine, especially when you bend or twist. Start light, take it off to bend or lift, and stop if pain spreads down a leg.

Is a weighted vest bad for your knees?

We found no study showing harm to knees from light vests, but each step lands a little harder with one. If your knees ache on hills or stairs, keep it light or leave it off, and see our knee pain when walking guide.

Should I wear a weighted vest during the menopause?

You can, if you're well, but use it as resistance for strength moves rather than as a bone treatment. For bone around the menopause, the UK consensus asks for strength training on 2 to 3 days a week and about 50 moderate impacts on most days.

Weighted vest or rucking?

Either makes walking harder. A vest spreads the weight front and back and a pack sits behind you; their energy costs are about the same at light loads, and neither has been shown to build bone on its own. Our rucking guide covers packs.

Can you wear a weighted vest while pregnant?

Don't start in pregnancy: we found no study, and the NHS advises against starting a new vigorous activity. If you already use one, keep it light, stop if it causes pain or leaking, and ask your midwife.

What exercises can I do in a weighted vest?

Walking, stairs, sit-to-stands, step-ups, split squats, incline push-ups and calf raises. Take it off for floor work, bending and jumping. Our weighted vest workout puts them in order.

Sources

  1. Osteoporosis Canada 2025 · Weighted vests: are they good for bone health? (position statement)
  2. Greendale 2000 · Wearing a weighted vest for 27 weeks in 62 older adults (RCT, J Am Geriatr Soc)
  3. Tantiwiboonchai 2011 · Walking with and without a weighted vest for 12 weeks in 48 working women (RCT, J Med Assoc Thai)
  4. Beavers 2025 · Weighted vest or resistance training during weight loss and hip bone in 150 older adults: the INVEST trial (RCT, JAMA Netw Open; erratum to captions and table units)
  5. Shaw 1998 · Weighted vest exercise for 9 months in 44 women aged 50 to 75 (trial, J Gerontol A)
  6. Bean 2009 · Weighted vest power training against standard strength training in 138 older adults (RCT, J Gerontol A)
  7. Wang 2026 · Weighted vests, bone and body fat in middle-aged and older adults: 9 trials (meta-analysis, Osteoporos Int)
  8. Luo 2026 · Weighted vests in older adults: 15 studies (narrative mini-review, Front Public Health)
  9. Looney 2024 · The energy cost of walking with weighted vests in 20 young military adults (equation and validation, Med Sci Sports Exerc)
  10. Compendium of Physical Activities 2024 · Walking, including treadmill walking by speed (reference values)
  11. Normandin 2018 · Wearing a weighted vest during 22 weeks of weight loss in 37 older adults (pilot RCT, J Frailty Aging)
  12. Puthoff 2006 · Vests of 10 to 20% of body mass, energy use and ground forces in 10 young adults (lab study, Med Sci Sports Exerc)
  13. Mierzwicki 2019 · Home exercise and walking with a vest of 10% of body weight in 19 older adults (pilot RCT, Phys Act Health)
  14. Roghani 2013 · Treadmill walking with a vest of 4 to 8% of body weight in 36 women with osteoporosis (RCT, Rheumatol Int)
  15. Klentrou 2007 · Exercise with a weighted vest for 12 weeks in 16 women after the menopause (trial, J Aging Phys Act)
  16. Ohlsson 2020 · A vest of 11% of body weight worn 8 hours a day for 3 weeks in 72 adults with obesity (RCT, EClinicalMedicine)
  17. NHS · Physical activity guidelines for adults aged 19 to 64
  18. Fanning 2026 · Time spent upright, a weighted vest and hip bone during weight loss in the INVEST trial (exploratory analysis, Front Aging)
  19. Kelleher 2017 · A weighted vest during weight loss and hip bone in older adults (pilot RCT, J Osteoporos Phys Act)
  20. Snow 2000 · Weighted vests plus jumping for 5 years and hip bone in women after the menopause (controlled study, J Gerontol A)
  21. Winters-Stone 2006 · Jumps and vest-loaded strength work for 12 months and hip bone in women before the menopause (trial, Bone)
  22. Witzke 2000 · Vest exercise and jumping for 9 months and bone in 53 teenage girls (trial, Med Sci Sports Exerc)
  23. Royal Osteoporosis Society · Impact exercise to help make your bones stronger
  24. Brooke-Wavell 2022 · Strong, steady and straight: exercise for osteoporosis (UK consensus statement, Br J Sports Med)
  25. Bean 2004 · Fast, task-specific exercise with weighted vests in 21 women aged 70 and over (pilot RCT, J Am Geriatr Soc)
  26. Hakestad 2015 · Weighted vest exercise for 6 months in 80 women with osteopenia and a healed wrist fracture (RCT, BMC Musculoskelet Disord)
  27. Tantanasest 2026 · A weighted vest, a vibration platform or exercise alone for 8 weeks in 31 women with osteopenia (RCT, Life)
  28. Gaffney 2022 · A 6 to 9 kg vest while walking and running in 20 adults (lab study, Ergonomics)
  29. Bellman 2025 · A vest of 11% of body weight worn 8 hours a day for 5 weeks in 58 adults with obesity (RCT, BMC Med)
  30. Lynch 2026 · Weighted vest or resistance training and muscle during weight loss in the INVEST trial (secondary analysis, J Gerontol A)
  31. DeLong 2025 · A weighted vest during weight loss and weight regain 2 years later in 18 older adults (pilot follow-up, Int J Obes)
  32. Fowler 1994 · Spinal shrinkage after drop jumps with and without an 8.5 kg vest in 8 men (lab study, Ergonomics)
  33. Paniak 2025 · 10 and 20 lb vests and balance tests in 34 adults over 55, funded by a vest maker (pilot study, Health Sci Rep)
  34. NHS · Pelvic organ prolapse
  35. NHS · Exercise in pregnancy
  36. NHS · How to warm up before exercising
  37. NHS · Chest pain (past its review date: reviewed August 2023, review due August 2026)
  38. NHS · Heart attack
  39. NHS · Shortness of breath
  40. NHS · Fainting
  41. NHS · Heart palpitations
  42. NHS · Subarachnoid haemorrhage
  43. NHS · Headaches
  44. NHS · Back pain
  45. NHS · Sciatica
  46. NHS · Knee pain
  47. NHS · Falls
  48. NHS · Hernia
  49. NHS · Femoral hernia

Exercise education, not a personal prescription, and clinical review of these guides is pending. Check with a GP before starting hard training if you have a heart condition, chest pain, dizziness or breathlessness when active, and stop for sharp or increasing pain. Health disclaimer.