Yoga for triathletes: swim, bike and run in one body, shoulders, hips and calves, recovery and load, what the evidence shows, and a class

No yoga trial in triathletes

We found no trial of yoga in triathletes, and no stretching trial in triathletes that counted injuries. Use yoga for comfort, range, balance and winding down, not as injury prevention.

Source 1

Most injuries come from running

In short-course triathletes, 45% to 92% of injuries happened running; swimming caused the fewest, but most of the shoulder injuries. In iron-distance triathletes, the knee, lower leg and lower back led.

Sources 2, 3

Stretching doesn't prevent running injuries

Stretching didn't prevent injuries in 1,538 army recruits or across 6 trials of 5,130 people, while strength and balance training did cut injuries across sport.

Sources 4, 5, 6

Flow before, hold after

Holds of 60 seconds or more per muscle just before testing cut performance by about 4.6% on average, while short stretches followed by dynamic movement didn't change running economy. Keep long holds for after easy sessions or rest days.

Sources 7, 8

Count it in your load

Cycling and running add up, and moving extra load into another sport when injured may raise the chance of the injury coming back. A strong yoga class is a session; a gentle one is closer to rest.

Sources 9, 10

Respect the swim and the heat

In US races, most deaths and cardiac arrests happened in the swim, mostly in middle-aged and older men. Check with a GP first if you have heart symptoms or a family history of sudden death young, and know the signs of heatstroke. Breathing practice belongs on land.

Sources 11, 12

How often, and whereEmerging evidence

Across 42 studies of short-course triathletes, injuries ran at 15.7 to 24.3 per 1,000 sessions or races, though no cohort study had a low risk of bias. In long-distance triathletes (6 studies, of relatively poor quality), 37% to 91% had an overuse injury, mostly at the knee and spine. In 174 iron-distance entrants followed for 26 weeks, on average 56% had an overuse problem at any one time: knee 25%, lower leg 23% and lower back 23%. In 50 elite Australian triathletes over 4 years, ankle, foot and lower leg injuries were commonest.

Sources 2, 13, 3, 14

Running carries most of the loadMixed evidence

In age-group triathletes, a previous injury and high running mileage before the season went with more injuries. In British squad Ironman athletes, overuse injuries tracked hard running and cycling sessions, and the authors suggest cycling and running add up as cumulative stress.

Sources 15, 9

Shoulders from the swimEmerging evidence

Swimming has a lower injury rate than cycling or running, but the shoulder is the commonest site of pain in competitive swimmers. In 80 young elite swimmers, 91% reported shoulder pain, and hours swum went with tendon trouble at the top of the shoulder. These are swimmers, not triathletes: borrowed evidence.

Sources 16, 17

BoneEmerging evidence

In elite Australian triathletes, 40% had a bone stress injury over 4 years, about three times as often in women. In 86 German squad triathletes, 23% had had a stress fracture, all in the legs, linked with female sex, low vitamin D or iron, missed periods and high training hours.

Sources 14, 18

Where yoga fits

An easy-day session that covers all three sports in one: the upper back and shoulder blades for the swim, the front of the hips and the back for the bike, calves, hamstrings and one-leg balance for the run, and slow breathing on land. It doesn't replace strength training, a gradual build-up across three sports or open-water safety, which our triathlon page covers.

No yoga trial in triathletesStrong evidence

PubMed found 1 record for yoga with triathlon, a survey that wasn't a yoga study, and no stretching trial in triathletes counted injuries. In runners, the yoga studies are tiny: 3 weeks of yogic breathing didn't change running economy in 21 runners, and 30 minutes of yoga after a long run kept one immune measure from dropping in 7 men. Neither tells you about injuries or race times.

Sources 1, 19, 20

Stretching doesn't prevent running injuriesStrong evidence

In 1,538 army recruits randomised to stretch or not before exercise, injuries didn't differ. In 421 recreational runners, a warm-up, cool-down and stretching programme didn't reduce running injuries. Across 6 trials (5,130 people), there was no evidence that stretching reduces leg soft-tissue injuries. Across 9 trials in endurance runners, exercise programmes didn't reduce injuries overall, and 7 of the 9 were low quality. Across sport, strength training cut injuries to under a third and balance training to about half, while stretching made no difference, and stretching researchers agree stretching isn't an all-round injury prevention strategy.

Sources 4, 21, 5, 22, 6, 23

Flexibility, power and economyEmerging evidence

Static holds of 60 seconds or more per muscle just before testing cut performance by 4.6% on average, against 1.1% for shorter holds. Four 15-second stretches followed by dynamic movement didn't change running economy in 18 trained runners and triathletes. Over weeks, static stretching barely changes jumping and doesn't clearly change sprinting.

Sources 7, 8, 24

Recovery: a short-term effectEmerging evidence

In 20 athletes, 15 minutes of yoga after hard intervals settled breathing and heart rate variability faster than stretching for 10 to 15 minutes. But 4 weeks of slow breathing after sprint training didn't improve recovery or performance, and stretching barely changes next-day soreness.

Sources 25, 26, 27

Before hard sessions and races

Use your usual warm-up, with a few minutes of flowing yoga inside it if you like, and keep holds under 30 seconds (our suggestion, as on our yoga for athletes guide).

Source 7

After easy sessions, on rest days and in a taper

Our 25-minute class, once or twice a week, fits an easy day (our editorial starting point). In a taper week, keep it gentle; a restorative or yin class is closer to rest.

Count yoga in your training loadStrong evidence

The International Olympic Committee (IOC) says poor load management is a major cause of injury, and its illness statement advises small increases in load (under 10% a week) and planned recovery, including relaxation strategies, sleep and rest. In 95 endurance athletes followed for a year, spikes in load went with new injury or pain. A strong flow class is a session; keep gentle yoga for easy days.

Sources 28, 10, 29

Injured? Rest the injured partMixed evidence

Triathletes often keep training by adding load in another sport when injured, which the authors of one British squad study say may raise the risk of the injury coming back. Keep yoga gentle and around the injury, not instead of rest (our reading).

Source 9

Hot yoga isn't heat trainingEmerging evidence

In 10 elite field hockey players with no comparison group, six 60-minute hot yoga sessions first lowered blood plasma volume, then expanded it 72 hours later, with only trivial changes in maximal fitness. Heat acclimatisation for racing means repeated exercise in the heat over 1 to 2 weeks, as our running in the heat guide explains. A hot class adds heat and fluid loss to a heavy week, so skip it in the 24 hours before a long race.

Sources 30, 31

Racing in the heatEmerging evidence

In a World Cup sprint triathlon held in a heatwave, 17 of the 44 athletes whose core temperature was measured passed 40°C. Race medical teams find overheating and heatstroke in most running and triathlon events they study.

Sources 32, 33

Deaths and cardiac arrests in racesEmerging evidence

In US races, most sudden deaths and cardiac arrests happened in the swim; from 2006 to 2016 the rate was 1.74 per 100,000 participants (2.40 in men and 0.74 in women), and 18.6 in men aged 60 and over. Of 61 people examined after death, 27 (44%) had heart disease that mattered. In UK races from 2009 to 2015 there were 5 deaths in 991,186 participants, 3 of them during or after the swim. Why the swim is unclear: one review favours heart rhythm problems, another series suggests fluid in the lungs.

Sources 11, 34, 35, 36

Check first

Chest pain, palpitations, dizziness or fainting with exercise, a heart condition, or a relative who died suddenly when young: see your GP, who may refer you to a cardiologist, before your first race. In those examined after a death in a US race, 44% had heart disease that mattered.

Source 11

Age and injuryMixed evidence

Teenage triathletes had almost twice the injury prevalence of 30 to 39 year olds, and over-40s didn't differ from under-40s in another study. Older Ironman entrants reported more fractures, and at the Ironman World Championship, under-35s and over-70s visited the medical tent more often than 36 to 69 year olds. The heart risk rises with age in men, which is a reason to check first, not to stop.

Sources 2, 37, 38, 11

Bones

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.

Twisting should be safe if you do it smoothly and comfortably. Slow down and shorten fast or forceful twists, and leave out the added weight.

Chest pain or fainting: call 999

Call 999 if:

• You get sudden pain or discomfort in your chest that doesn't go away; it can feel like squeezing or pressure, burning or indigestion.
• The pain spreads to your left or right arm, or your neck, jaw, stomach or back.
• You have chest pain and feel sweaty, sick, light-headed or short of breath.
• Someone faints while exercising, can't be woken within 1 minute, or has chest pain or a pounding, fluttering or irregular heartbeat.

Sources 39, 40

Heart symptoms before you race

Chest pain, palpitations, dizziness or fainting with exercise, a heart condition, or a relative who died suddenly when young: see your GP, who may refer you to a cardiologist, before your first race. In those examined after a death in a US race, 44% had heart disease that mattered.

Source 11

Trouble breathing in the water

Sudden breathlessness, a cough, frothy or pink spit, or a tight chest: stop, roll onto your back, raise an arm for the safety crew and get out. If it doesn't settle quickly, call 999 (our suggestion), and don't swim again until a doctor has checked your heart and lungs.

Sources 45, 46, 47

Breath-holding

Breathe slowly on land only. Never practise breath-holding or over-breathing in the pool: it can cause a blackout underwater without warning.

Sources 48, 49

Heatstroke: call 999

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.

Source 12

Confused or vomiting after a long race

Confusion, a severe headache, repeated vomiting or a seizure after a long race needs emergency help: call 999. Low blood sodium from drinking too much is one cause (our reading).

Source 50

Too cold after the swim

Shivering, numbness, slowing down, stiffness, confusion, blue lips or slurred speech: get out and warm up. Go to A&E or call 999 if you think someone has hypothermia.

Sources 47, 51

A head injury from a crash

Call 999 if someone has been knocked out, can't stay awake, has a fit, or has new numbness, weakness or problems with vision, speaking or walking. If in doubt, sit them out, and follow the UK's grassroots concussion guidelines and our concussion guide: no competition before day 21.

Sources 41, 42

Bone pain that builds

Pain in one spot of a bone that builds with running, then aches at rest or at night, can be a stress fracture: stop running and get it checked. Our stress fracture guide explains.

Sources 52, 18

Missed periods or a bone stress injury

See a GP: both can be signs of not eating enough for your training. Our women's guide explains the checks.

Sources 14, 53

Unusual breathlessness

Call 999 or go to A&E (accident and emergency) straight away for severe difficulty breathing (gasping, choking or not able to get words out), a chest that feels tight or heavy, pain that spreads to your arms, back, neck and jaw, lips or skin turning very pale, blue or grey, or sudden confusion. If you're more short of breath than usual, or your heart is racing, fluttering or skipping beats, contact NHS 111.

Source 43

During yoga

A joint pain that is sharp, gets worse during a session, lingers into the next day or changes how you move is a reason to use an easier version, and to see a GP or physiotherapist if it keeps happening (the rule in our plans). Muscle soreness for a day or two after something new is normal. In a hot class, stop if you feel dizzy, sick or unwell; our hot yoga guide lists the signs of heat illness.

With glaucoma, or high blood pressure that isn't under control, skip headstands, shoulder stands and long head-down holds. With osteoporosis, swap deep forward folds for a flat-back hinge from the hips, and twist smoothly. In pregnancy, our yoga in pregnancy guide covers the changes. NCCIH advises beginners to avoid headstands, shoulder stands, the lotus position and forceful breathing.

You can say no to any hands-on adjustment, and a teacher registered with Yoga Alliance must get your explicit consent each time.

Source 44

Before you start

The NHS advises getting advice from a healthcare professional first if you have a health problem, an injury or symptoms, or have recently had a heart attack or an operation.

"Stretching before a race stops injuries"Strong evidence

Not in 1,538 army recruits, not in 421 runners and not across 6 trials of 5,130 people. Strength and balance training have the better evidence.

Sources 4, 21, 5

"The more flexible the better"Emerging evidence

Long holds just before hard efforts cost a little power, and stretching improves range without preventing injuries. Triathletes need enough range, plus strength.

Sources 7, 23

"Hot yoga is good heat training for a hot race"Emerging evidence

In 10 hockey players with no comparison group, hot yoga barely changed maximal fitness. Acclimatise with 1 to 2 weeks of exercise in the heat.

Sources 30, 31

"Yoga speeds up recovery between sessions"Emerging evidence

Yoga settled breathing faster for 10 to 15 minutes after hard intervals, but 4 weeks of slow breathing didn't speed recovery, and stretching barely changes soreness.

Sources 25, 26, 27

"Injured from running? Swim and bike more instead"Mixed evidence

Moving extra load into another sport when injured may raise the chance of the injury coming back. Rest the injured part.

Source 9

"Breathing practice in the pool builds swim fitness"

Breathe slowly on land only. Never practise breath-holding or over-breathing in the pool: it can cause a blackout underwater without warning.

Sources 48, 49