Which stretching technique is the PNF hold relax stretching technique, characterized by an initial barrier with a ~15-second stretch, followed by a ~6-second isometric contraction, and then a move to a new barrier with a ~15-second hold?

• A. Post isometric relaxation (PIR) MET
• B. Reciprocal inhibition stretch
• C. PNF hold relax stretching technique
• D. Contract relax procedure

Answer: (C)

Hold-relax is a PNF stretching method that uses a brief isometric contraction to boost the subsequent stretch. The sequence starts with a passive stretch to the first barrier for about 15 seconds. Then the tight muscle performs a brief isometric contraction against resistance for roughly 6 seconds. After the contraction, the muscle relaxes and you move into a new, deeper barrier, holding that stretch for about 15 seconds. This works through autogenic inhibition: the isometric contraction activates the Golgi tendon organs, dampening the muscle’s resistance and allowing a greater, safer lengthening when you move to the new barrier. This exact pattern and purpose distinguish it from the other techniques, which either use different contraction types or rely on different mechanisms to achieve a deeper stretch.