Optimize your recovery in taekwondo

Same dobok, same dojang, but not the same body to repair.

A kyorugi fight pushes the heart to 89–96 % of maximum heart rate from the very first round, with lactate climbing to 12 mmol/L in the third[1]. Yet the energy comes 66 % from the aerobic system and 30% from phosphocreatine[2] : it's your aerobic engine that recharges your bursts between exchanges. Over a championship day, four fights leave traces that add up — before the third, lactate, resting heart rate and fatty acids are still high[3].

Poomsae tells a different story. A form on its own costs little: 54–63 % of HRmax. But ten forms back-to-back climb to 72–87 %, a “strongly anaerobic” response comparable to HIIT in international competitors[4][5]. And above all: poomsae is graded on precision and balance — exactly the qualities that fatigue, lack of sleep and stress degrade first.

Who gets injured, and why

Surprise: in the only prospective study comparing disciplines over a year, it's the athletes in poomsae which have the highest incidence of injury — 172 per 1,000 exposures, compared to 47 in kyorugi[6]. But they are not the same injuries. In poomsae, 91% are non-contact, dominated by cramps and spasms: the typical profile of repetitive load with insufficient recovery, hip and pelvis leading[7]. In kyorugi, the risk increases fivefold in competition, with bruises, ankle sprains and fractures[8] — and the best-established risk factor isn't contact, it's rapid weight cut (risk ×2 to ×2.6)[9].

“Excessive training and chronic fatigue”: this is the No. 1 cause that poomsae athletes themselves give for their injuries. A third of them.

Training doesn't make you stronger. It tires you. Recovery is what turns that fatigue into progress — as long as you give your body time to come back up above of its starting level before the next session. Too early, you go backwards. Too late, you lose the benefit. Play with the slider below.

What the literature adds to this classic pattern: “deliberate overreaching” is not necessary to progress — athletes pushed into overload sometimes adapt less than those who follow the same program without[10]. And it is not the volume that injures you, it is the sudden jump: the IOC recommends not increasing the load by more than 10 % per week, with a risk that doubles beyond a peak of 1.5× the average of previous weeks and injuries that occur one to four weeks after the peak[11].

A single short night costs 7.6% of performance on average. And it's your finest-tuned qualities that go first.

Two out of three combat sports athletes sleep badly — 65% of “bad sleepers” out of nearly 500 practitioners, including taekwondo athletes[13]. It is the most powerful and most neglected lever. Across 69 studies, acute sleep loss reduces performance by 7,6 % on average, with much greater effects on afternoon tests — the time of most competitions[14]. And the detail that counts: it is the deprivation in end of the night (getting up very early) that does the most damage, far more than a late bedtime. A direct study on taekwondo athletes confirms it: a night cut short in the early morning reduces intermittent endurance that same evening[15].

Look at the order: skill control, endurance, speed… and maximum strength last. In other words, you can feel “strong” after a bad night and yet miss your hakdari seogi or counter timing.

Poomsae: the technique is locked in while you sleep

Kyorugi: the weight cut steals your sleep

What really works

• Aim for 9 to 10 hours in bed during hard blocks and before a competition. “Sleep extension” studies (+46 to +113 min per night) improve reaction time, sprinting, accuracy and mood — the most effective intervention in systematic reviews[21].
• Stock up : one to two weeks of long nights before the event (“sleep banking”) cushions the short nights of competition.
• The nap, but well timed : 20 to 90 min, between 1 p.m. and 4 p.m., finished at least 30 min before training to clear sleep inertia[22].
• Protect the last hours of sleep : no very early wake-ups before a technical session or an afternoon competition.
• Tart cherry or two kiwifruit in the evening : +30 to +55 min of sleep in small studies — weak evidence, no risk[23].

• Caffeine after 2 p.m. 400 mg (two large coffees) taken 4 h before bed remove 51 min of sleep; taken 12 h before bed, they still cut into deep sleep. 100 mg is no problem[24].
• Alcohol in the evening : fragmented sleep, and muscle synthesis cut by 24 to 37% at 1.5 g/kg[25].
• Rely on “sleep hygiene” alone. Screens, cool room, schedules: they sometimes improve sleep, but no study shows an effect on performance. The documented lever is time spent in bed.

Without enough energy, no other strategy works. None.

The International Olympic Committee has a name for what happens when you train a lot and eat too little: the REDs, Relative Energy Deficiency in Sport. Sleep, bones, immunity, strength, mood — everything deteriorates, in men as in women. And the IOC names two families of high-risk sports: sports with weight categories and sports aesthetic[26]. In other words, kyorugi and poomsae. The consequences listed are exactly what costs points: “impaired judgment, diminished coordination, prolonged reaction time, reduced recovery.”

The threshold: do not go below 30 kcal per kilo of lean mass per day, aim for 45 to be comfortable[27].

Carbohydrates, fuel for rounds and forms

A fight depletes glycogen; so do ten forms back-to-back. ACSM recommendations: 5–7 g/kg/day for one to two hours of technique, 6–8 for fight or sparring days, 8–10 on double session days[27]. If less than 8 h separate two sessions, 1 to 1.2 g/kg per hour for 4 h, with a high glycemic index. Small documented bonus: creatine increases glycogen resynthesis by 82 % over the first 24 hours[28].

Protein: enough, spread out, and a dose before bed

Beyond 1.6 g/kg/day, the gains plateau — this is the result of 49 trials and 1,863 subjects[29]. Split it into doses of 0.3–0.4 g/kg every 3–4 h. And the dose almost no one takes: 30 to 40 g of casein before bed (a big bowl of fromage blanc or skyr) increases nighttime muscle synthesis by 22% and gives more strength and mass over 12 weeks[30].

Water, but with salt

Heated dojang, hogu, dobok: you lose more than you think. Past 2% dehydration, repeated efforts and thermoregulation both degrade. The rule: weigh yourself before and after, and drink 1.25 to 1.5 L per kilo lost — with sodium, otherwise the water doesn't stay in[31].

• Alcohol after a hard session — at 1.5 g/kg, protein synthesis −24 to −37%. Tolerable up to 0.5 g/kg, about two glasses for 75 kg[25].
• Megadoses of vitamins C and E (≥ 1 g of C) continuously — they block mitochondrial adaptation to training[32]. Eat fruit, skip the capsules.
• Restriction “to stay slim” combined with a high load — this is the gateway to REDs.

Your watch doesn't know whether you're cooked. You do — as long as you ask yourself the question.

Here's a result that bothers gadget sellers: across 56 studies, the measurements subjective (fatigue, mood, stress, sleep quality, soreness) reflect training load with “higher sensitivity and consistency” than objective markers — heart rate variability, blood tests, VO₂[35]. “HRV-guided” training does not increase performance on average; it mainly helps spot non-responders[36]. If you use HRV, look at the 7-day average, never the morning value.

Session RPE (your effort from 0 to 10 multiplied by the duration) is validated in taekwondo athletes, including during intensive training camps[37]. It has a blind spot: short explosive sessions. For kyorugi, count the rounds; for poomsae, count full forms, kicks at full range and, in freestyle, jumps — that is what gymnasts do, for whom the number of elements per day explains 77% of the internal load[38].

Deload without stopping

Expert coaches agree on a deload week every 4 to 6 weeks[39]. But watch the form it takes: in the only controlled trial on the subject, a week ofcomplete rest adds nothing and actually holds back strength[40]. The right model is the pre-competition taper: reduce volume by 41–60%, keep intensity and frequency, over two weeks — the most solid effect in the entire literature on competition preparation[41].

After Saw AE et al. (2016) [35], Haddad M et al. (2011) [37], the IOC consensus [11], Bell L et al. (2023) [39] and Coleman M et al. (2024) [40].

The ice bath is the most popular tool in sport — and the most misused.

Out of 99 studies, one modality beats all the others for muscle soreness: massage. Next come active recovery and compression garments. Cold-water immersion is half as good, and stretching… nothing at all[44].

The cold-water paradox

Two things are true at the same time. After a very hard session or a fight, cold-water immersion reduces soreness and muscle damage markers at 24 h and improves next-day sprint[45][46]. But repeated after strength training, it cuts anabolic signaling: over 12 weeks, less strength and less mass than with ten minutes of light cycling[47] — strength −0.60 in effect size, hypertrophy 2.5× lower[48]. And between two runs or two fights on the same day, it is useless: in ten taekwondo athletes, neither a bath at 15 °C nor crushed ice changes anything at 90 min, and immediate cold even degrades speed[49][46].

Part of the effect you feel is placebo anyway: a lukewarm immersion presented as a “recovery oil” restores strength as well as cold does[50]. This is not a reason to throw it all out — perceived recovery predicts the next day's sprint (r = 0.77)[51]. Keep the rituals you believe in, as long as they cost nothing in adaptation.

What about heat?

This is the “risk-free” option after strength training: a sauna or a hot bath in the evening doesn't slow adaptations, and might even help them slightly (90% probability of benefit for hypertrophy in the most recent meta-analysis)[52]. Three weekly infrared sauna sessions after training improved jumping by 15% in trained athletes[53]. Evidence still early, but no contraindication.

The IOC says it in two words: “food first”. Then it lists what actually has evidence.

Caffeine, creatine, bicarbonate, beta-alanine, nitrate: this is the short list of the Olympic consensus[60]. And among these five, only one really serves the recovery. The rest of the industry lives on promises. Eight products keep coming up in the locker room: here they are, with what you can really expect from them, and what you should not. Before you buy anything, one absolute rule for a licensed competitor: a product with anti-doping certification (Informed Sport, NSF, AFNOR), because cross-contamination is a real risk and a suspension is not negotiable.

A competition isn't one effort. It's a series of efforts with gaps in between — and those gaps are won or lost.

Stress predicts injury. And mental fatigue degrades exactly what you're judged on.

Across 48 studies, the stress response is correlated with injury (r = 0.27), and all seven psychological interventions tested — stress management, relaxation, imagery — reduced the number of injuries[75]. The IOC explicitly recommends reducing the load in times of life stress[11] : exams, moving house, work. It's not weakness, it's physiology.

In 68 elite athletes followed for eight days, the detachment on a daily basis predicts recovery — and it has to be “matched”: physical detachment restores the body, emotional detachment restores the mind[76]. After a day of competition or intense sparring, lying down is not enough; you have to switch off mentally, with an unrelated activity, without ruminating.

Mindfulness, tested in 11 randomized trials in 582 athletes, reduces anxiety (−0.87) and improves performance (+0.92) — with wide intervals, but an unbeatable risk/benefit ratio[78]. Eight to twelve weeks of practice, ten minutes a day.

The principle: pick your recovery based on what the session was meant to produce — not stack every tool.

The two weeks before the competition

Tapering: volume reduced by 41 to 60% gradually, intensity and frequency maintained, extended sleep, creatine maintained, nothing new. It's the best-documented intervention in the whole preparation[41].