"Use full range of motion (ROM)." That phrase captures one of our major philosophies of resistance training so well that it bears repeating. Use a full ROM. Use a full ROM. Good. Now that's hopefully ...
Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.
Objective: To determine if submaximal contractions used in contract-relax proprioceptive neuromuscular facilitation (CRPNF) stretching of the hamstrings yield comparable gains in hamstring flexibility ...