Can the viral Saitama workout deliver real results, or is it a path to injury?
TL;DR: The Quick Answer
For the first 30 to 60 days, the Saitama workout works as a starting point if you are doing nothing else. After that it stalls, because it has no progression, creates muscle imbalances, and stacks serious injury risk on top. If you want results that last past month three, you have to modify it.
The Saitama workout went viral on TikTok again this year, with a wave of UK gym-curious twenty-somethings attempting 100 push-ups, 100 sit-ups, 100 squats and a 10 km run every single day. The fitness community is split. Some swear by it. Most coaches think it is one of the worst-designed programmes you could pick.
The honest answer sits in the middle. It works for a short window. Then it breaks down. This guide walks through what the routine actually delivers, why it stops working, and what a UK adult should do instead.
What the Saitama workout actually is
The routine comes from the anime One Punch Man. In the story, Saitama becomes the strongest hero on Earth by doing 100 push-ups, 100 sit-ups, 100 squats, and a 10 kilometre run every day for three years. His joke punishment for that is going bald. It is funny in the show. It is also, taken literally, the textbook definition of a high-volume, no-rest, no-progression training plan.
If you actually try it, expect roughly 90 minutes a day with no rest days for as long as you stick with it.
Does it actually work? The honest answer
Yes, for a window of roughly 30 to 60 days, and only if you start from a sedentary baseline. After that, no.
If you currently do nothing, the first month produces real change. Your cardiovascular system adapts. Your push-up capacity climbs from maybe 10 reps to closer to 40 or 50. Your legs get used to the running volume. You will probably lose a bit of weight because the daily calorie burn is substantial. Fitness creator Stan Browney ran the experiment publicly for 30 days and concluded it was a reasonable beginner challenge, not a long-term programme.
The reason it produces results in month one is simple. Going from zero stimulus to high-volume daily stimulus is a huge jump. Your nervous system gets more efficient at the movements. The same is true of any beginner routine. Almost anything works at the start.
The reason it stops working in month two is also simple. Your muscles adapt. Once 100 push-ups feels survivable, your body has no reason to grow stronger or bigger. You are doing the same reps with the same body weight in the same order, day after day. The stimulus is identical, so the response stops. Strength coaches at The Bioneer, Hevy and Adam Kemp Fitness all reach the same conclusion. The routine is not engineered for continued progress.
There is one well-known counter-example. Bodybuilder Misho Ikeda completed the Saitama workout for three years and came out visibly leaner and more muscular. One Punch Man manga artist ONE publicly thanked him on Twitter for proving the routine was not pure fiction. The catch is that Ikeda was already an experienced lifter, and he treated the Saitama workout as supplemental, not standalone.
Stage 1 — Weeks 1 to 4
Beginner gains. From a sedentary start, your push-up max climbs, your run pace settles, and you drop a few pounds. The win is consistency, not muscle growth.
Stage 2 — Weeks 5 to 8
Plateau. The body has adapted. The same 100 reps produce the same response. Strength stops climbing, weight loss slows, and motivation usually wobbles here.
Stage 3 — Month 3 and Beyond
Diminishing return. With no progression built in, you are now maintaining a baseline at the cost of 90 minutes a day. Most people quit, some develop overuse injuries, a few graduate to a real programme.
The daily 10km run is a major source of both calorie burn and injury risk.
Why it stalls after 6 to 8 weeks
The principle the workout ignores is called progressive overload. To keep building strength or muscle, you have to gradually increase the demand on your body. That can mean more reps, harder variations, slower tempo, less rest between sets, or added external resistance. The Saitama workout has none of that built in. The numbers and the moves are fixed.
So after the first six to eight weeks, you are no longer training, you are maintaining. Maintaining a baseline of fitness is not a bad thing, but it is not what most people are doing the routine for. The TikTok promise is transformation. The reality is plateau. To break that plateau you would have to add weighted variations, swap in pull-ups, change the run structure, or rotate sessions. Once you do that, it stops being the Saitama workout.
Research Spotlight: Why coaches keep flagging the same flaw
Strength coaches at The Bioneer, Hevy and Adam Kemp Fitness all reach the same verdict when reviewing the Saitama workout. Without progressive overload, the body adapts and stops responding within six to eight weeks. The routine works as a beginner shock, not as a continuing programme.
- The Bioneer: high-frequency calisthenics works initially because of neural adaptation, then plateaus.
- Hevy coaches: no pulling movement is the single biggest design flaw.
- Adam Kemp Fitness: 100 daily push-ups will likely cause elbow or shoulder issues in most lifters.
The injury problem nobody talks about
This is the part that gets glossed over in the viral videos. Doing 100 push-ups every day with no rest is the textbook setup for elbow tendinopathy, the modern medical name for what used to be called tennis elbow and golfer elbow. The tendon tissue around the elbow does not get a recovery window. It accumulates micro-damage faster than it repairs.
The shoulder takes a similar hit. The push-up overdevelops the chest and front of the shoulders. There is nothing in the routine that trains the back of the shoulders or the upper back, which are the stabiliser muscles that protect the shoulder joint. Over weeks, the imbalance can pull the shoulders forward, which contributes to shoulder impingement and rotator cuff irritation.
The 10 km daily run stacks on top of all of that. Running the same route at the same pace every day, with no easy or rest days, is one of the most reliable ways to develop shin splints, Achilles tendinopathy or runners knee. You are landing the same way on the same joints with the same impact pattern, over and over.
None of this is theoretical. Sports medicine clinics across the UK see exactly these injuries in people who load too quickly. The workout removes the single most effective injury prevention tool available, which is the rest day.
What It Trains
- Chest and front of shoulders (push-ups)
- Quads and glutes (squats)
- Cardiovascular endurance (10 km run)
- Hip flexors and rectus abdominis (sit-ups)
What It Leaves Exposed
- Upper back and rear delts (no pulling = shoulder imbalance)
- Rotator cuff stabilisers (impingement risk)
- Hamstrings and posterior chain (no hinging or deadlift work)
- Tendon recovery (no rest day = elbow and Achilles tendinopathy)
What the NHS actually recommends
The NHS guidance for adults aged 19 to 64 is at least 150 minutes of moderate intensity activity a week, or 75 minutes of vigorous activity a week, plus strength training for all major muscle groups on at least two days a week. The strength training is on top of the cardio, not instead of it.
- 150 minutes of moderate activity (like brisk walking)
- OR 75 minutes of vigorous activity (like running)
- Strength work for all major muscles on at least 2 days
- Spread activity across 4 or 5 days, build in rest
NHS guidance also says to spread activity across four or five days, build in rest days, and watch for signs of overtraining like recovery taking more than two to three days, dropping energy, or worsening sleep. The Saitama workout breaks almost every one of those rules. No rest days. Strength volume that lacks any pulling work for the back. A cardio dose that runs daily rather than spread across the week.
A modified version that actually lasts
You can keep the spirit of the Saitama workout without the design flaws. The fix is not complicated.
Drop the frequency to three or four days a week, with rest days between sessions. Add pulling movements, so for every push you do a row or pull-up to balance the shoulders and upper back. Build in progression, so when 50 push-ups in a set becomes easy, switch to diamond push-ups, then elevated-foot push-ups, then a weighted vest. Do the same for squats, by adding load or moving to a single-leg variation.
For the run, vary it. One short fast session, one longer easy session, one cross-training day on a bike or in the pool to take the impact off your joints. A practical UK-friendly version of the routine might look like this. Three sets of 15 to 20 push-ups, three sets of 8 to 12 pull-ups or inverted rows, three sets of 20 to 30 squats, and a 5 km run, done three or four days a week. That fits around a working week, gives your tissue time to recover, and keeps you progressing for far longer than two months.
Four Fixes That Save the Saitama Workout
- Drop the frequency. Three or four days a week, with rest in between, beats daily for both progress and joint health.
- Add pulling work. Pull-ups, inverted rows or band pull-aparts balance the chest-heavy push-up volume and protect the shoulders.
- Build in progression. When 100 reps is easy, harden the move. Diamond push-ups, elevated feet, weighted vest, single-leg squats.
- Vary the cardio. Swap one of the daily 10 km runs for a faster, shorter session, and another for low-impact cross-training like cycling or swimming.
How the Saitama workout compares to other beginner programmes
| Feature | Saitama Workout | NHS Couch to 5K | Bodyweight Basic Routine (Reddit RR) | Beginner Barbell (StrongLifts 5×5) |
|---|---|---|---|---|
| Time per session | ~90 minutes | 20-30 minutes | ~60 minutes | 45-60 minutes |
| Rest days | 0 | 3-4 per week | 3 per week | 3 per week |
| Builds strength? | Short-term only | No (cardio focus) | Yes | Yes |
| Builds pulling muscles? | No | No | Yes | Yes |
| Injury risk for beginners | High | Low (if plan followed) | Low to moderate | Moderate (needs form check) |
| Best for | 30-day shock for total beginners | UK runners starting from zero | Equipment-free intermediate progress | Barbell strength gains in a gym |
What people actually report after trying it
★★★★★
“The first three weeks felt incredible. By week six the same routine was a slog and my left elbow started clicking.”
★★★★☆
“Did it for 30 days. Lost 4 lb and my push-ups doubled, but I was bored out of my mind by week three.”
★★★★☆
“As a starter routine for a complete beginner, it works. As anything more than that, it really does not.”
★★★☆☆
“The 10 km daily run wrecked my shins inside two weeks. Should have built up gradually instead of going straight to the full version.”
Frequently Asked Questions
Will the Saitama workout help me lose weight?
It can, because the daily calorie burn from the running and the calisthenics is significant. The weight loss still comes down mostly to your eating, though. Without enough protein and without proper strength training you will lose a chunk of muscle alongside the fat, which slows your metabolism over time and makes the weight harder to keep off.
Is doing 100 push-ups a day safe?
For most people, no. The tendons around the elbow and shoulder need a recovery day to rebuild. Daily 100-rep sets is the most common pathway to elbow tendinopathy in casual exercisers. A safer pattern is push-ups three or four days a week, with a heavier set on training days and full rest in between.
How far is a 10 km run in miles?
A 10 km run is 6.2 miles. For an average UK adult who is not a trained runner, that takes between 50 and 70 minutes to complete at a steady jog.
Can I get real results from just 30 days of this?
You will see real improvements in cardiovascular fitness, muscular endurance, and basic discipline. What you will not see is dramatic muscle gain or a finished body transformation. Most of the visible change in 30 days is reduced water retention and slightly better posture.
Saitama is a fictional character, so why are we treating his routine seriously?
That is the single most important thing to remember before treating his training plan as serious advice. The anime is comedy. The bald head, the one-punch knockouts, the three-year transformation, those are story devices, not training principles. Applying them literally ignores everything sports science knows about recovery, progression and injury risk.
What did the One Punch Man creator say about real attempts?
Manga artist ONE replied positively when bodybuilder Misho Ikeda completed the routine for three years, saying he was glad someone had proven the workout was not pure fiction. The important context is that Ikeda was already an experienced athlete who used the routine as a supplement to his existing lifting, not as a standalone programme.
The Bottom Line
The Saitama workout is a fun meme and a usable 30-day kick-start for someone who is currently doing nothing. It will not build long-term strength, it will not give you a balanced body, and it will eventually grind down your tendons if you keep going past month two.
Use it for four to six weeks if you need a structure to get moving. Then graduate to something with proper pulling, real progression, and at least two rest days a week. That is the version that actually keeps producing results.
Related reading: Learn more about eccentric exercise benefits, preventing Achilles tendinitis, or try our Couch to 5K running plan.
Want the real UK guidelines?
The full NHS physical activity guide covers cardio targets, strength training and recovery for adults 19 to 64.
Last updated: May 2026 · Written by the Walton Surgery editorial team · Medical information is for educational purposes only and does not replace advice from a qualified healthcare professional.
