Karate: Lunge Punch
In karate, the lunge punch, known as oi-zuki (追い突き) in Japanese, is a fundamental technique that combines forward movement with a straight punch, delivering significant power by utilizing the body’s momentum.
Execution of Oi-Zuki:
Starting Position:
- Begin in a front stance (zenkutsu-dachi) with your left leg forward and hands in a guard position.
Step Forward:
- Push off your back (right) foot, propelling your body forward.
- As you step, slide your right foot forward, transitioning into a right front stance.
Punch:
- Simultaneously with the step, extend your right arm straight forward, aiming for the opponent’s midsection (chudan level). 
- Rotate your fist so that the palm faces downward upon full extension.
Hikite (Pulling Hand):
- While executing the punch, retract your left hand to the side of your waist, palm facing upward.
- This action, known as hikite, enhances the power and speed of the punch.
Key Points to Consider:
- Synchronization: Ensure that the step and punch occur simultaneously to maximize the technique’s effectiveness. 
- Hip Rotation: Engage your hips by rotating them forward during the punch, adding power through the use of core muscles.
- Stability: Maintain a low and stable stance throughout the movement to ensure balance and readiness for subsequent actions.
- Targeting: Focus on delivering the punch to the opponent’s midsection, typically aiming for the solar plexus.