In Chinese Mandarin this is called "Ce Shuai Tui". The side kick is one of the most basic kicks and should be part of your wushu warm-up routine. What's typical about the side kick in wushu taolu (forms), is that both arms are extended and it's ok if you lean back a little. In combat sports like muay thai or sanda the side kick is executed differently.
- Stand upright with hands on your sides.
- Step forward with your left foot and lift your arms a bit. (lift arms sideways)
- Then step forward with your right leg and let your arms fall. Cross your arms, make a big circle and then cross your arms a second time. Put your forearms over each-other. Some athletes only cross their wrists. Watch your right hand as you open your arms.
- The left hand stops over the right hand (or forearm over forearm). Your fingers point up any you look to the left.
- Now your legs are crossed, your arms are crossed and you look to the left. Hold this position for about one second.
- Then lift your left knee and kick with your left leg. Twist on on your standing foot and lean back a little. Make sure you keep looking straight forward.
- Fully extend your arms as you kick. Both hands form palms (zhang). The right hand points up and the left hand points to the right.
- Hold this position for about one second.
- Then let your kicking leg fall. In wushu taolu you don't have to pull your knee back towards your chest after the kick.In sanda that would be important because you don't want your opponent to catch your kick.
- Stretch your splits.
- Exercise: Hold on a chair and do 10 to 20 slow side kicks.
- Practice both, left and right wushu side kick.
- For isometric strength, you can try to hold your wushu side kicks for a few seconds.