Walk-run, 3 times a week
NHS Couch to 5K starts with 1-minute runs and 90-second walks, 3 times a week with a rest day after each run, and builds to 30 minutes of running over 9 weeks or more. Repeating a run or a week is fine.
Training guide
How to start running: walk-run your way from your first minute to 5K
Most people can start running, and almost everyone starts by walking. The usual way in is walk-run: short runs of a minute or so with walking breaks between, 3 times a week, building up over 9 weeks or more until you can run for 30 minutes. That's how NHS Couch to 5K works, and the walking breaks aren't cheating: they're the method.
New runners get injured more often than experienced ones, so the theme of this guide is to start gently, run slowly enough to talk, repeat weeks whenever you need to, and stop early when something hurts.
It covers whether you're ready, your first run, how fast and how often to go, how to build up, choosing shoes, telling ordinary aches from injuries, starting at a higher body weight or later in life, and what to do after your first 5K.
The short version
Walk first if you need to
If you can't yet walk briskly for 20 to 30 minutes, build up your walking first: US guidance advises people who have been inactive to avoid vigorous activity such as running at first.
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Slower than you think
Run slowly enough to talk in full sentences, and walk whenever you need to. A jog barely faster than your walk is fine.
Build up gently
A slower programme built on the 10% rule didn't prevent injuries in a trial of 532 beginners. In a study of 5,205 adult runners, single runs much longer than their longest of the past month went with more injuries, so add a little at a time.
Comfort and fit, not foot type
Choosing shoes by foot type made no difference to injuries in trials of more than 7,000 military recruits. Get a pair that fits and feels comfortable; the NHS says cheaper versions suit beginners.
Don't run in pain
New runners get injured more than twice as often per hour as experienced ones. Stiff legs for a day or two are normal at first, but the NHS says don't run if you're in pain.
Walk-run, and why beginners take it slowly
Short runs with walking breaks
Walk-run alternates short runs with walking, so your breathing settles and your body gets used to running a little at a time. NHS Couch to 5K is free, made for absolute beginners, and has an app that talks you through each run.
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What 5K means
5K is 5 kilometres, about 3.1 miles. Thirty minutes of running is about 5 km at 6 minutes per kilometre, or about 3.75 to 4.3 km at 7 to 8 minutes per kilometre (our arithmetic). Either is a fine first goal.
Running is vigorous activity
75 minutes a week of vigorous activity such as running gives similar benefits to 150 minutes of moderate activity such as brisk walking, the NHS says.
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Why beginners take it slowly
Across 13 studies, new runners had 17.8 injuries per 1,000 hours of running, against 7.7 in recreational runners, though the studies defined injury differently. In Dutch beginner programmes, about 1 in 10 to 1 in 5 people had a running injury, and in a Danish study injured beginners took a median of 71 days to get back to running.
What the evidence says
The 10% rule didn't prevent injuriesStrong evidence
In 532 beginners training for a 6.7 km event, a 13-week programme built on the 10% rule (adding no more than 10% a week) injured as many people as an 8-week programme: 20.8% against 20.3%. A Cochrane review found no evidence that a more gradual build-up prevents injuries in new runners.
Single long runs may matter more than weekly totalsEmerging evidence
In 5,205 runners followed for 18 months, a run 10 to 30% longer than their longest of the past 30 days went with a 64% higher injury rate, and a run more than twice as long with more than double the rate; changes in weekly distance weren't linked. It's an observational study of runners who reported their own injuries, mostly men with an average age of 46, not beginners. In 874 new runners, raising weekly distance by more than 30% over 2 weeks showed only a trend towards more injuries.
Three days a week, not five, at the startEmerging evidence
In an old trial of men aged 20 to 35 jogging hard for 20 weeks, 39% were injured running 5 days a week, against 12% at 3 days, and 45-minute sessions injured more people than 30-minute ones. Fitness rose with more running, but the authors advised beginners against 5 days and 45 minutes. It's small, old and in men only.
Source 16
A gentler first week at a higher body weightEmerging evidence
In one exploratory Danish study of 749 new runners, with 56 injuries in all, those with a BMI (body mass index) over 30 who ran more than 3 km in their first week had more injuries over the next 3 weeks than those who ran less. It's one small study, not a rule. Across 29 studies, a higher BMI was one of several moderate-quality risk factors in people running shorter distances, alongside older age, being male, having no running experience and running less.
Shoes haven't been shown to prevent injuriesStrong evidence
Across 12 trials of 11,240 people, no type of running shoe was shown to prevent injuries (low or very low certainty evidence), and choosing shoes by foot posture made no difference in 3 military trials of 7,203 recruits (moderate certainty).
Source 8
Feet that roll in did fine in neutral shoesEmerging evidence
In 927 new runners in neutral shoes, feet that rolled in moderately weren't injured more often over a year.
Source 19
Softer shoes, lighter runnersEmerging evidence
In 848 recreational runners, harder shoes went with more injuries, but only in lighter runners; in heavier runners there was no clear difference, and body weight itself wasn't linked with injury. It's one trial.
Source 20
Walk breaks cost littleEmerging evidence
In 42 non-elite runners randomly given run/walk or running only for a marathon, finish times were similar (4 hours 14 minutes against 4 hours 8 minutes, not a significant difference), and the run/walk group had less muscle pain and tiredness afterwards.
Source 21
Stretching didn't prevent running injuriesStrong evidence
Stretching didn't reduce running injuries in 6 trials of 5,130 people, or sports injuries in general across 25 trials.
Strength programmes haven't been shown to prevent running injuriesEmerging evidence
Across 9 trials of 1,904 runners, exercise programmes didn't clearly reduce injuries, though supervised ones did better in a follow-up analysis. Most of the trials were of low quality.
Source 23
Why beginners stopEmerging evidence
Six months after a 6-week beginners' course, 29.5% of 774 new runners had stopped, mostly because of injury. In a UK Couch to 5K group of 110 people, 19% were injured and 27% finished, and people who left talked about injury, negative feelings and the programme's design. In 10-week group programmes, people who enjoyed it, felt confident and had support came more often.
Running and long-term healthEmerging evidence
Across 14 studies of 232,149 people, runners had a 27% lower risk of dying early than non-runners, with no clear extra benefit from running more, and in 55,137 adults even 5 to 10 minutes a day went with a lower risk. Recreational runners had less hip and knee arthritis (3.5%) than people who didn't run (10.2%). These studies show links, not proof that running caused them.
The talk test matches a breathing thresholdEmerging evidence
In 16 adults on a treadmill and a bike, the point where talking first got hard closely matched a breathing threshold measured in the lab, and a review found the test worked across walking, jogging, cycling and other machines. The studies are small.
Are you ready to start running?
Walk first if you need to
If you can walk briskly for 20 to 30 minutes, you're ready for walk-run (our Couch to 5K plan's starting point). If not, start with our walking plan: US guidance advises people who have been inactive to avoid vigorous activity such as running at first, and to build up over weeks to months.
Source 3
Check first if you need to
The NHS says to speak to a GP before Couch to 5K if you're worried about your health. If you're over 45 and not used to hard exercise, the PAR-Q+ (Physical Activity Readiness Questionnaire for Everyone) suggests checking with a qualified exercise professional before very hard efforts such as races.
Pregnant, or after a baby
The NHS advises against starting a new vigorous activity such as running in pregnancy. After the birth, our postpartum plan has the checks to do before you start running.
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Asthma or a heart condition
Our asthma and heart disease guides cover running with each condition, including what to check first.
Your first run
Week 1 of NHS Couch to 5K. Our Couch to 5K plan uses ten 1-minute jogs with 1-minute walks instead; either works.
- Walk briskly for 5 minutes.
- Run slowly for 1 minute, at a pace where you could still talk.
- Walk for 90 seconds.
- Repeat the run and the walk 7 times in all, then run for 1 more minute.
- Walk for 5 minutes to finish. That's about 28 minutes altogether.
- Rest the next day, and run 3 times this week, with a rest day after each run.
Loading the 3D figure…
The movement on the figure: Treadmill jogging
How fast to go, and getting out of breath
Slowly enough to talk
Run at a pace where you can still talk in full sentences. At first even a slow jog can feel hard, because effort is relative to your fitness: slow down, or walk until your breathing settles.
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Walking breaks are part of the method
Couch to 5K is built on them, and in a marathon trial, run/walk finished in about the same time as running only, with less muscle pain afterwards.
Out of breath?
Breathing hard is normal at first, and fitness rises within weeks: within 3 weeks in a small cycling trial, and over 10 weeks in beginner running groups. Breathlessness that's severe or comes with chest pain is different: see the warning signs below.
Stitches
Its cause isn't fully understood. About 70% of runners get a stitch in a year, whatever their sex or body type, and it's more likely after eating or drinking, especially sugary drinks. Avoid large meals and drinks in the 2 hours before you run, and slow down or walk until it passes; other remedies are mostly anecdotal.
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How often, and how to build up
Three runs a week, with a rest day between
That's how Couch to 5K works. In an old trial of men jogging hard, 5 days a week brought far more injuries than 3.
Repeat runs and weeks freely
The NHS says repeating a run or a week is fine, and its running-injury advice is to do a similar run at least 3 or 4 times before you increase your pace or distance.
Add a little at a time
No weekly percentage has been shown to prevent injuries, so follow the plan and repeat weeks when you need to. Build your longest run up a little at a time rather than in one big jump (our suggestion, from an observational study).
On the days between
Walking, cycling or the optional strength sessions are all fine. Strength work counts towards the guidelines' 2 days a week, though it hasn't been shown to prevent running injuries. Our Couch to 5K plan adds two short strength sessions from week 3.
Moves for new runners
Walk, walk-run, then run; from week 3, calf raises, step-ups and bridges on two non-running days build your legs, as in our Couch to 5K plan, and stretching after a run is optional.
3D demoTreadmill walkingBeginner · Cardio machine
3D demoTreadmill joggingIntermediate · Cardio machine
3D demoTreadmill runningIntermediate · Cardio machine
3D demoSlow calf raiseBeginner · A wall
3D demoSingle-leg calf raise from a stepIntermediate · A step + A wall
3D demoStep-upBeginner · A step
3D demoGlute bridgeBeginner · No equipment
3D demoWalking lungeIntermediate · No equipment
3D demoSkippingBeginner · No equipment
3D demoAnkle bounces (mini pogo)Beginner · No equipment
3D demoWall calf stretch (gastrocnemius)Beginner · A wall
3D demoStanding quad stretchBeginner · A wallWorkouts to follow
The run-walk intervals for beginners are weeks 1 to 3 of our Couch to 5K plan. The walking workouts come first if you need them, and the strength sessions go on non-running days.
Run-walk intervals for beginners
A 30-minute beginner run-walk session: a brisk walk, then 1-minute jogs with 1-minute walks, building to 3-minute runs over your first three weeks.
30 minBeginner5 movesCardio machine, A wallRun-walk intervals: longer runs
A 35-minute run-walk session for weeks 4 to 8 of learning to run: 5-minute jogs with 2-minute walks, building to a 20-minute run.
35 minBeginner5 movesCardio machine, A wallEasy run (30 minutes)
A 40-minute easy run at a pace where you can talk in full sentences, with a brisk-walk warm-up and an easy cool-down: the base of every running plan.
40 minBeginner6 movesCardio machine, A wallInterval 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
Build-up interval walk
A 25-minute walk with short faster bouts: notice your heart and breathing speed up, then settle. A gentle way to get used to the feelings of effort.
25 minBeginner5 movesCardio machine, A wall
Runner's warm-up
An 8-minute dynamic warm-up for runners: ankle and hip mobility, lunges, skips and pogo hops.
8 minIntermediate8 movesA wall
Post-run stretches
Seven stretches for after a run: calves, soleus, quads, hip flexors, hamstrings and glutes.
10 minBeginner7 movesA wall
Beginner lower body workout
Learn to squat, hinge and lunge: a 25-minute beginner lower body workout with bridges, clamshells and calf raises.
25 minBeginner11 movesA wall, A bench or box
Strength workout for runners at home
A 40-minute strength workout for runners at home: hops, Bulgarian split squats, single-leg deadlifts, step-ups, calf raises and side planks.
40 minIntermediate15 movesA wall, A bench or box
Low-impact cardio workout (no jumping)
A 25-minute standing cardio circuit with no jumping: marching, step jacks, sit-to-stands, punches, step-ups and wall push-ups, with a seated option for most moves.
25 minBeginner9 movesA bench or box, A stepPlans
Couch to 5K takes you from walking to 30 minutes of running. The walking plan comes first if you need it, and the 5K and 10K plans come after.
3 days a week
Couch to 5K plan: walk to run in 9 weeks
A 9-week beginner plan with the same walk-to-run shape as Couch to 5K: three run-walk sessions a week, from 1-minute jogs to 30 minutes of running.
3 training days35 minBeginner6 days a weekWalking plan for beginners: 8 weeks to 150 minutes a week
A free 8-week walking plan for beginners: build to 150 minutes of brisk walking a week, with intervals, hills and two short strength sessions.
6 training days40 minBeginner4 days a week5K training plan: run a faster 5K in 8 weeks
An 8-week plan to run a faster 5K once you can run one: hills, then intervals and tempo runs, mostly easy running, strength, a time trial and a light race week.
4 training days40 minIntermediate4 days a week10K training plan for beginners: 5K to 10K in 8 weeks
An 8-week beginner 10K plan: three runs a week plus strength, a long run that grows about 10% at a time, optional hills and tempo runs, and a light race week.
4 training days45 minBeginner2 days a weekStrength training plan for runners
A 12-week strength plan for runners: two sessions a week of heavy lifts, single-leg work, calf raises and hops, fitted around your runs.
2 training days45 minBeginnerShoes and kit
Comfort and fit
Choose running shoes that fit and feel comfortable. No type of shoe has been shown to prevent injuries, choosing by foot type made no difference, and one review suggests comfort is a sensible guide.
A running shop can help
The NHS suggests a running shop can help you get fitted, and says you don't need to spend a lot: cheaper versions are suitable for beginners.
Source 9
Shoes and body weight
In one trial, softer shoes went with fewer injuries in lighter runners but made no clear difference in heavier runners, so you don't need special shoes for your size.
Source 20
The rest of your kit
A supportive sports bra if you need one, something reflective if you run in the dark, and a light snack based on carbohydrate 1 to 2 hours before you run, as the NHS suggests. Running with a friend or a group can make it safer too.
Aches or injury?
Normal aches
Stiff, achy legs for a day or two after your first runs are normal, and they fade as you repeat the runs.
When to stop
The NHS says don't run if you're in pain. Stop and rest if a pain is sharp, makes you limp or change how you run, or builds as you go, and skip your next run if it's worse the next morning (our plans' rule).
Source 9
When to see a GP or physiotherapist
See a GP straight away for a knee that's very painful or swollen, a sudden sharp pain at the back of your ankle, or a lot of swelling in your heel or under your foot. See a GP or physiotherapist for knee pain that hasn't gone after a week, Achilles pain after 2 to 3 weeks, or shin pain that's severe, swollen or not improving after a few weeks.
Source 9
Pain in one spot on a bone
Pain you can point to with a fingertip on a bone, which gets worse with each step and later at rest, can be a stress fracture: stop running and get it checked. Our stress fracture guide has more.
Where it hurts
Our running pain guides cover the knee, shins, calves, feet, hips, ankles and back, with what to do and when to get help.
Starting at a higher body weight, later in life, or after an injury
If you're starting at a higher body weight
You can start the same way, with a gentler first week. One exploratory Danish study found more early injuries in new runners with a BMI over 30 who ran more than 3 km in their first week, so our Couch to 5K plan suggests 5 rounds instead of 10 in week 1. At a slow jog of 8 to 9 minutes per kilometre, the 8 minutes of running in one NHS week-1 run is about 1 km (our arithmetic). US guidance says less fit people should build up more slowly, so repeat weeks whenever you need to, and walk, cycle or use the cross-trainer on other days. You don't need special shoes for your size.
If you're starting later in life
Older adults may need 2 to 4 weeks to adapt to each step, so taking each week twice is sensible (our Couch to 5K plan suggests it from 60). Older age adds a little injury risk, but fitness rose at least as much in older men as in young men in a cycling trial, the average age in one UK Couch to 5K group was 47, and recreational runners had less hip and knee arthritis than people who didn't run.
If you've been injured before
A previous injury is the strongest known risk for the next one, and in one Couch to 5K group it raised the odds of a new injury about 7.6-fold. Make sure it has settled, use the matching pain guide, and take each week twice (our suggestion).
Keep going: to 5K and beyond
Many people stop, often because of injury
Six months after a 6-week course, 29.5% of new runners had stopped, mostly because of injury, and in one UK Couch to 5K group 27% finished the 9 weeks. Repeating weeks and stopping early when something hurts are the simplest ways to stay in it.
Company helps
People who enjoyed their group runs, felt confident and had support came more often. The NHS suggests setting a goal, such as a 5 km event, and running with a partner, a friend or a group.
parkrun
parkrun is a free weekly 5 km walk, jog or run. Couch to 5K graduates who joined took part about as often as other parkrunners, about 11 times a year.
After 30 minutes
Keep three easy runs a week and add 2 or 3 minutes to one run a week to reach 5 km, as our Couch to 5K plan does. Then try our 5K plan to run faster or our 10K plan to go further.
What to expect
Fitness within weeks
Aerobic fitness rose within 3 weeks of regular training in a small trial, and beginners in 10-week running groups covered about 189 m more on a shuttle-run test, with no comparison group.
Weight, slowly
Each extra 30 minutes a week of aerobic exercise took off about 0.5 kg on average in trials. Running helps, and food does most of the work.
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Over the years
Runners had a lower risk of dying early than non-runners, even at small amounts, though these studies show links, not proof.
Warning signs: when to stop and get help
Call 999 (911 in the US)
Stop and call 999 for any of these. Don't drive yourself to A&E.
- Chest pain that comes on suddenly and doesn't go away, feels tight or heavy, or spreads to your arms, neck, jaw, stomach or back.
- Chest pain with sweating, feeling sick, light-headedness or breathlessness.
- Severe difficulty breathing: gasping, choking or not being able to get your words out.
- Someone who faints while running.
- Pain and swelling in one leg with breathlessness or chest pain.
See a GP straight away
For a knee that's very painful or swollen, a sudden sharp pain at the back of your ankle (your Achilles tendon may have torn), or a lot of swelling in your heel or under your foot.
Source 9
Get help the same day
Call NHS 111 or ask for an urgent GP appointment (in the US, your doctor or urgent care) if you're suddenly more short of breath than usual, or your muscles are very sore and weak with dark, red or cola-coloured pee after an unusually hard run.
In the heat
On hot days, run early or late, slow down and drink water. Our running plans list the signs of heat exhaustion and heatstroke.
Myths
"You have to run every day to get fit"Emerging evidence
Couch to 5K uses 3 runs a week with rest days between. In an old trial, 5 days a week injured 39% of men against 12% at 3 days, and in pooled cohort studies any amount of running, even once a week, went with a lower risk of early death.
"Walking breaks are cheating"Emerging evidence
Couch to 5K is built on them, and in 42 non-elite marathon runners, run/walk finished in about the same time as running only, with less muscle pain.
"You need shoes for your foot type, or a gait analysis"Strong evidence
Choosing shoes by foot posture made no difference in more than 7,000 recruits, and no shoe type has been shown to prevent injuries. Feet that roll in weren't injured more in neutral shoes. Go by comfort and fit.
"Running ruins your knees"Emerging evidence
Recreational runners had less hip and knee arthritis than people who didn't run (3.5% against 10.2%); competitive runners had more. These are associations, not proof.
Source 29
"Stick to the 10% rule and you won't get injured"Mixed evidence
A programme built on the 10% rule didn't prevent injuries in 532 beginners, and a Cochrane review found no evidence for slower build-ups. In an observational study, single runs much longer than your recent longest went with more injuries.
"You're too heavy, or too old, to start running"Emerging evidence
Body weight itself wasn't linked with injury in an 848-runner trial, and a gentler first week suits people starting at a higher body weight. Older adults may need more time for each step, and older men's fitness rose at least as much as young men's in a cycling trial.
"Strength training will stop you getting running injuries"Emerging evidence
Exercise programmes didn't clearly reduce injuries in 9 trials of runners. Do strength work for strength and health.
Source 23
"Stretching before a run prevents injuries"Strong evidence
Stretching didn't reduce running injuries in 6 trials of 5,130 people. Stretch afterwards if it feels good.
Read next
- Couch to 5K plan
- Walking plan
- 5K training plan
- 10K training plan
- Running
- How to run faster
- How to increase stamina
- How to start working out
- How to warm up
- Knee pain when running
- Shin pain
- Shin splints
- Calf pain when running
- Foot pain when running
- Stress fracture
- Exercise for weight loss
- Exercise for older adults
- Exercise with asthma
- Running pace calculator
- All training guides
Questions people ask
How do I start running as a complete beginner?
Start with walk-run: run for a minute, walk for a minute or 90 seconds, and repeat, 3 times a week with a rest day between. NHS Couch to 5K builds from there to 30 minutes of running over 9 weeks or longer, and you can repeat any week.
How fast should a beginner run?
Slowly enough to talk in full sentences. That pace lets you finish the session and come back for the next, and a jog barely faster than your walk is fine.
How far should a beginner run?
Go by time rather than distance at first: Couch to 5K starts with 1-minute runs and builds to 30 minutes of running. If you're starting at a higher body weight, keep your first week especially gentle: one small exploratory study found more early injuries when new runners with a BMI over 30 ran more than 3 km in their first week.
How often should a beginner run? Is it OK to run every day?
Three times a week, with a rest day between runs, is how Couch to 5K and most beginner programmes work. In an old trial of men jogging hard, running 5 days a week brought far more injuries than 3 (39% against 12%). Walking or cycling on the days between is fine.
What running shoes should a beginner buy?
Running shoes that fit well and feel comfortable. Choosing shoes for your foot type made no difference to injuries in trials of more than 7,000 recruits, and no type of shoe has been shown to prevent injuries. A running shop can help with fit, and you don't need an expensive pair.
Why do my legs ache after running? Is it an injury?
Stiff, achy legs for a day or two are normal when you start. Stop and rest if a pain is sharp, makes you limp, builds as you run or is worse the next morning, and get a sore spot on a bone checked. The NHS says not to run in pain.
How do I run without getting out of breath?
Slow down until you can talk in full sentences, and walk for a minute whenever you need to. Getting out of breath is normal at first, and fitness rises within a few weeks. Severe breathlessness (gasping, or not able to get your words out), or breathlessness with chest pain, is different: call 999 (911 in the US).
Can I start running if I'm overweight?
Yes. Start with brisk walking, then walk-run, and keep your first week gentle: in one small exploratory study, new runners with a BMI over 30 who ran more than 3 km in their first week had more injuries. Repeat weeks whenever you need to, and walk, cycle or use the cross-trainer on other days.
Am I too old to start running?
No. Older adults may need 2 to 4 weeks to adapt to each step, so taking each week twice is sensible. Recreational runners had less hip and knee arthritis than people who didn't run.
Does running ruin your knees?
Not for most people: in pooled studies, 3.5% of recreational runners had hip or knee arthritis, against 10.2% of people who didn't run. Competitive runners had more, and these are associations, so build up gradually and stop if a knee hurts.
What should I do after Couch to 5K?
Keep running 3 times a week, add a few minutes to one run a week to reach 5 km, and try a free parkrun. Then choose our 5K plan to run faster or our 10K plan to go further.
Why do I get a stitch when I run?
Its cause isn't fully understood, but it's very common: about 70% of runners get one in a year, and it's more likely after eating or drinking, especially sugary drinks. Avoid large meals and drinks in the 2 hours before you run, and slow down or walk until it passes.
Sources
- NHS Better Health · Get running with Couch to 5K
- NHS Better Health · Couch to 5K running plan
- US Department of Health and Human Services 2018 · Physical Activity Guidelines for Americans, 2nd edition (guideline)
- Persinger 2004 · The talk test and the breathing threshold in 16 adults on a treadmill and a bike (study, MSSE)
- Reed 2014 · The talk test for prescribing and monitoring exercise intensity (review, Current Opinion in Cardiology)
- Buist 2008 · A 13-week programme built on the 10% rule against an 8-week one in 532 novice runners (RCT, American Journal of Sports Medicine)
- Frandsen 2025 · Single long runs and injury in 5,205 runners over 18 months (cohort study, BJSM)
- Relph 2022 · Running shoes for preventing running injuries in adults: 12 trials (Cochrane review)
- NHS · Knee pain and other running injuries (past its review date: reviewed November 2022, review due November 2025)
- Videbæk 2015 · Running injuries per 1,000 hours in different types of runner: 13 studies (meta-analysis, Sports Medicine)
- NHS · Physical activity guidelines for adults aged 19 to 64
- Kluitenberg 2015 · Running injuries in 1,696 novice runners on a 6-week course (cohort study, Scand J Med Sci Sports)
- Nielsen 2014 · Time to recovery in 254 injured novice runners (cohort study, PLoS One)
- Yeung 2011 · Interventions for preventing lower limb soft-tissue running injuries: 25 trials (Cochrane review)
- Nielsen 2014 · Weekly distance increases and injury in 874 novice runners (cohort study, JOSPT)
- Pollock 1977 · Training frequency, session length and injury in men who took up jogging (trial, Medicine and Science in Sports)
- Nielsen 2014 · First-week running distance and injury by BMI in 749 novice runners (exploratory cohort study, International Journal of Sports Physical Therapy)
- van Poppel 2021 · Risk factors for overuse injuries in short- and long-distance running: 29 studies (systematic review, Journal of Sport and Health Science)
- Nielsen 2014 · Foot pronation and injury in 927 novice runners in neutral shoes (cohort study, BJSM)
- Malisoux 2020 · Shoe cushioning, body mass and injury in 848 recreational runners (RCT, American Journal of Sports Medicine)
- Hottenrott 2016 · Run/walk against running only in a marathon: 42 non-elite runners (randomised study, Journal of Science and Medicine in Sport)
- Lauersen 2014 · Exercise programmes to prevent sports injuries: 25 trials (meta-analysis, BJSM)
- Wu 2024 · Exercise programmes to prevent injuries in endurance runners: 9 trials (meta-analysis, Sports Medicine)
- Fokkema 2019 · Why 774 novice runners stopped running after a beginners' course (cohort study, Journal of Science and Medicine in Sport)
- Relph 2023 · Who takes part in Couch to 5K, and does injury explain who stops? 110 UK beginners (study, IJERPH)
- Stevinson 2022 · Beginner running groups: attendance and health over 10 weeks (observational study, Research Quarterly for Exercise and Sport)
- Pedisic 2020 · Running and the risk of early death: 14 studies of 232,149 people (meta-analysis, BJSM)
- Lee 2014 · Leisure-time running and the risk of early death in 55,137 adults (cohort study, Journal of the American College of Cardiology)
- Alentorn-Geli 2017 · Recreational and competitive running and hip and knee osteoarthritis: 25 studies (meta-analysis, JOSPT)
- Foster 2008 · The talk test as a marker of exercise training intensity (validation study, Journal of Cardiopulmonary Rehabilitation and Prevention)
- PAR-Q+ Collaboration 2025 · The Physical Activity Readiness Questionnaire for Everyone (PAR-Q+)
- NHS · Exercise in pregnancy
- UK Chief Medical Officers 2019 · Physical activity guidelines (with the 2026 evidence update for adults, GOV.UK)
- Murias 2010 · How fast fitness rises with training in 8 older and 8 young men (trial, Journal of Applied Physiology)
- Morton 2015 · Exercise-related transient abdominal pain: the stitch (review, Sports Medicine)
- Nigg 2015 · Running shoes and running injuries: the comfort filter and the preferred movement path (review, BJSM)
- NHS Better Health · Get active
- Relph 2023 · Couch to 5K graduates at parkrun: 3,296 compared with 55,923 other parkrunners (survey, Health Promotion International)
- Jayedi 2024 · Aerobic exercise and weight loss: 116 trials (dose-response meta-analysis, JAMA Network Open)
- NHS · Chest pain (past its review date: reviewed August 2023, review due August 2026)
- NHS · Heart attack
- NHS · Shortness of breath
- NHS · Fainting
- NHS · DVT (deep vein thrombosis)
- MedlinePlus (US National Library of Medicine) · Rhabdomyolysis
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.