The straight punch (choku-zuki) is thrown standing square; the reverse punch (gyaku-zuki) is thrown with the hand on the opposite side to your front leg, usually from a front stance. Both are whole-body movements: in lab studies the hips start moving first and the fist reaches its top speed last, and the whole punch takes roughly 0.3 to 0.4 seconds. Learn the order (legs and hips, then trunk, then arm, with the pulling hand coming back as the punch goes out) and the camera can check the parts it sees: your hip and shoulder turn, the elbow path and the pulling hand.
Set up and chamber
Pick your base. For choku-zuki stand square to the target. For gyaku-zuki take a front stance and punch with the hand on the opposite side to your front leg (see Stance Fundamentals for length and weight by style).
a stable base before anything moves.
Chamber the punching fist at your side, palm up, with the other arm extended in front. Styles set the chamber height differently; follow your dojo. Keep your trunk upright over your hips.
loaded, not tense.
Hips first, then the arm
Start with the legs and hips. For gyaku-zuki, push from the back leg and turn the pelvis toward the target. Keep the hips level as they turn rather than rising or dipping. Keep the front knee bent.
the hip turning before the hand leaves.
Let the arm fire after the hip: the fist travels straight down your centre line, the elbow stays in behind it and the arm extends without snapping into a locked elbow. Keep the path compact; experienced karateka move the upper arm less than beginners do.
the arm riding on the body's turn.
Turn the fist over toward palm-down during the punch. In lab measurements of experienced karateka the turn starts early and is often not fully complete at impact, so don't save it for the last instant and don't force it.
a smooth corkscrew, not a flick at the end.
Pulling hand and finish
Pull the other hand (hikite) back to your side as the punch goes out. The punching arm, the pulling arm and the hip turn should all finish at the same moment.
one hand out, one hand back, arriving together.
At the finish, tighten the whole body for an instant (kime) with the trunk upright and the front knee still bent; don't lean over the front foot to reach. Then release the tension and return to your guard or chamber.
a solid, short stop, then loose again.
Feel it
A good punch feels like the body throws the arm: the hip turns first, the arm follows, and everything stops together with a brief tightening. You stay balanced on your stance instead of being pushed back or falling forward. In a small lab study, punches thrown without the hip landed sooner but with a slower fist, so the hip is what adds speed and body rotation to the punch.
Fix-its
- Arm-only punch (hips and shoulders stay square, only the arm moves) Do the hip turn on its own first, hands on hips, then add the arm so it leaves after the hip starts turning.
- Leaning or reaching past the front knee Keep the trunk upright over the hips and close the distance with the stance, not the shoulders. Stop the punch where your arm ends.
- Elbow flaring out to the side Slow the punch down and keep the elbow behind the fist so the forearm travels straight along your centre line.
- Pulling hand stays out or drifts Practise both arms together in slow motion so the pulling hand reaches your side as the punch lands.
- Hips bob or the front knee straightens on the punch Keep the hips at the same height through the turn and keep the front knee bent from start to finish.
Drill
- Hip turn only: in your stance with hands on hips, turn the pelvis toward the target and back, keeping the hips level and the trunk upright.
- Slow-motion punches: hip first, then the arm, with the pulling hand coming back at the same speed. Check that both arms and the hip finish together.
- Full-speed punches with kime in the air, then a few on a pad or bag. Lab work shows punching a target is not the same movement as punching air, so practise both; start light and stop if your wrist or knuckles hurt.
- Film from the front or at 45 degrees (60 fps or higher): watch whether the shoulders turn with the hips, whether the elbow stays in, and whether the pulling hand reaches your side as the punch lands.
Sources
- Hofmann & Witte — Biomechanische Technikdiagnostik des Gyaku-Zuki im Karate-Kumite, Journal of Martial Arts Research (2019)
- Suwarganda et al. — Analysis of performance of the karate punch (gyaku-zuki), ISBS Proceedings (2009)
- Csákvári, Kopper & Horváth — A Novel, Sport-Specific EMG-Based Method to Evaluate Movement Efficiency in Karate Punching, Sports (2025)
- VencesBrito et al. — Kinematic and electromyographic analyses of a karate punch, J Electromyogr Kinesiol (2011)
- VencesBrito — Kinesiological characterization of choku-tsuki with and without impact, Revista de Artes Marciales Asiáticas (2012)
- Rinaldi et al. — Biomechanical characterization of the Junzuki karate punch: indexes of performance, Eur J Sport Sci (2018)
- Cesari & Bertucco — Coupling between punch efficacy and body stability for elite karate, J Sci Med Sport (2008)
Last checked 2026-10-26.