What Couch to 5K is, and how this plan relates to it
Couch to 5K is a free NHS running programme for absolute beginners: 3 runs a week with rest days between, building from 1-minute runs to 30 minutes of running in 9 weeks or longer, with an app that talks you through each run. The NHS says it was created by a new runner, Josh Clark, to help his mother start running, and the NHS app has been downloaded more than 7 million times since 2016.
This plan follows the same walk-to-run shape, but it's our own: its steps come from published beginner running trials, and it isn't connected with the NHS or any app.
Sources 21, 25, 26
Where the steps come fromEmerging evidence
In Dutch trials, beginners training for a 6.7 km event did 3 run-walk sessions a week on their own, starting with ten 1-minute runs and 1-minute walks at a pace they could talk at, with a 5-minute brisk walk before and after. They built up to 30 minutes or more of continuous running over 8 to 13 weeks.
Weeks 1 and 2 of this plan copy those programmes, weeks 4 to 6 use their pattern of 5- to 8-minute runs with 2-minute walks, and week 9 ends, as they did, with 30 minutes of running. Weeks 3, 7 and 8 are our editorial steps in between, chosen to avoid a jump from 8 to 20 minutes of continuous running in one week, which people who left a Couch to 5K group singled out.
Sources 10, 27, 28
How many beginners get hurtEmerging evidence
In those trials, about 1 in 6 to 1 in 5 beginners had an injury that stopped or limited their running for a week or more: 20.3% and 20.8% of 532 people on the 8- and 13-week programmes, and 16.8% of 432 on the 9-week one (15.2% with a walking and hopping block first). In a 6-week Dutch programme with a trainer once a week, 10.9% of 1,696 beginners were injured. Per hour of running, new runners get injured more than twice as often as experienced recreational runners.
These figures come from structured Dutch programmes in which people trained for a set event and logged every session, some with a trainer. A plan you follow on your own may differ, which is why this one builds in repeat weeks and a pain rule.
Sources 6, 29, 30, 31
Many beginners stop, so this plan bendsEmerging evidence
In a 9-week Couch to 5K with one instructor-led run a week, only 27% of 110 people finished. Three in four of those who left did so before halfway; 11 of the 15 leavers interviewed had stopped because of an injury, and many felt the plan got harder too fast. In 10-week group programmes, people came to about half their sessions, and injury was the commonest reason for missing them. Six months after a 6-week programme, 30% of 774 beginners had stopped running, injury again the main reason.
So repeat any week as often as you need. Nothing is lost by taking 12 weeks instead of 9.
Sources 28, 32, 33
Three runs a week, with a rest day betweenEmerging evidence
In an old trial of men aged 20 to 35 starting to jog hard, running 5 days a week injured 39%, against 12% at 3 days, and 45-minute sessions injured 54%, against 24% at 30 minutes. Fitness rose with more running, but the researchers advised beginners against it. The trial was small and in men only, but 3 days a week with rest days between is also the pattern of the NHS programme and of the beginner trials.
Sources 34, 25, 10
Who should take it slowerEmerging evidence
A previous injury is the strongest known risk for the next one. Older age, a higher body mass index (BMI) and never having run before add some risk; none is a reason not to run. In a Couch to 5K group, people with a past injury were much less likely to finish.
With a past injury, or if you're older or slow to recover, take each week twice (our suggestion). With a BMI over 30, do 5 rounds instead of 10 in your first week, then week 1 as written: in 749 new runners, those with a BMI over 30 who ran more than 3 km in their first week had more injuries over the next 3 weeks, an early, exploratory finding. US guidance says less fit people and people with a higher body weight should build up more slowly, and older adults may need 2 to 4 weeks to adapt to each step.
Sources 35, 36, 30, 37, 28, 38, 5
Thirty minutes, or 5 km?
The plan ends with 30 minutes of easy running. At 6 minutes per kilometre that's 5 km; at 7 or 8 minutes per kilometre it's about 3.75 to 4.3 km (our arithmetic). Both count. To reach 5 km, add 2 or 3 minutes to one run a week afterwards.
Walk breaks are a method, not a failureEmerging evidence
In a randomised study of 42 non-elite marathon runners, those who took walk breaks finished in about the same time as those who ran throughout (4 hours 14 minutes against 4 hours 8), with less muscle discomfort. It was one small study in marathon runners, but it suggests walk breaks cost little. Walk when you need to, during this plan and after it.
Source 39
What running does for youEmerging evidence
In 20 people in group beginner programmes, fitness improved within 10 weeks, with small falls in BMI and body fat; there was no comparison group. In large cohort studies, runners had a 27% lower risk of dying early than non-runners, even at small amounts such as 5 to 10 minutes a day, though studies like these can't prove cause.
Three 30-minute runs make 90 vigorous minutes a week. The NHS says 75 vigorous minutes give similar benefits to 150 moderate ones, so that's more than the weekly amount adults are asked for (our arithmetic).
Sources 32, 40, 41, 4
If you're running to lose weightStrong evidence
Running helps, but on its own it takes off a few kilos at most over months: in 116 trials in adults with overweight or obesity, each extra 30 minutes a week of aerobic exercise took off about 0.5 kg on average. Pair it with changes to what you eat; our weight-loss workout plan covers both.
Source 42
Run with someone if you canEmerging evidence
In group beginner programmes, people who enjoyed the sessions, felt confident and had support came more often. A friend, a club's beginners' group or a free weekly parkrun all help: in a survey, 3,296 Couch to 5K graduates who had joined parkrun took part about as often as other parkrunners.
Sources 32, 43
Strength on two days (optional)Emerging evidence
Health guidelines ask adults to do muscle-strengthening activity on at least 2 days a week, and from week 3 the two short home sessions cover it (starting in week 3 is our suggestion, once your legs are used to the runs). Do them for strength and health rather than to prevent running injuries: across 9 trials in endurance runners, exercise programmes didn't clearly reduce injuries, and a 4-week walking and hopping block before a beginners' programme didn't help (16.8% injured without it, 15.2% with it).
Sources 44, 4, 45, 29
How to adapt it
Our suggestions, with the evidence where there is some:
- Two runs a week: spend two weeks on each week of the plan.
- Treadmill: fine. Set a 0 to 1% incline (in a small study of trained men, both matched the effort of running outdoors at slow speeds) and clip on the safety key.
- Aged 60 or over, or slow to recover: take each week twice, 18 weeks in all; US guidance says older adults may need 2 to 4 weeks to adapt to each step.
- A past running injury: make sure it has settled, using the matching pain guide, then take each week twice.
- Knee osteoarthritis: keep to the pain rule in the knee arthritis guide. In 8 people with knee osteoarthritis, short runs inside a walk raised a marker of cartilage stress only briefly.
- After giving birth: the postnatal exercise guide has the checks to do before you run, and the return-to-running checks workout in the postpartum workout plan runs through them as one session.
- Pregnant and not already running: walk instead; the NHS advises against starting running in pregnancy.
- Heart disease, diabetes treated with insulin or a sulfonylurea, asthma, or postural tachycardia syndrome (PoTS): start with the matching exercise-for guide and your care team's advice.
- Hot weather: run early, slow down or walk more.
Sources 5, 46, 24, 47, 17