Describe the hold-relax sequence in PNF stretching.

Describe the hold-relax sequence in PNF stretching.

• A. Isometric contraction against resistance; then relaxation and deeper passive stretch.
• B. The muscle lengthens during a passive stretch
• C. The muscle shortens through concentric contraction
• D. The therapist applies traction

Answer: (A)

Hold-relax in PNF uses an isometric contraction of the target muscle against resistance at its end range to trigger autogenic inhibition. After holding, the muscle relaxes and a deeper passive stretch is applied, taking advantage of the Golgi tendon mechanism to reduce resistance and allow greater lengthening. This is different from a purely passive stretch or a concentric shortening pattern, and it does not involve traction.

Hold-relax in PNF uses an isometric contraction of the target muscle against resistance at its end range to trigger autogenic inhibition. After holding, the muscle relaxes and a deeper passive stretch is applied, taking advantage of the Golgi tendon mechanism to reduce resistance and allow greater lengthening. This is different from a purely passive stretch or a concentric shortening pattern, and it does not involve traction.