SAm chien can be done in two ways;
1. full muscle tensioning combine with powerful movements, this method is design mainly to enhance the muscle memory to stay on alert for combat purposes. The deep breathing in coordination with sam chien movements help develop the internal energy and strengthen the internal oragns to withstand blows and shock.
2. The other method is light and done in circular and rythmic motion in conjunction with breathing and sam chiem movements. This is more design for people who are targetting mainly for physical health. People who are in their 50+ years of age is more suited for this it is also good for maintaining internal organs and give it a good overhaul once in awhile.