Which stretching technique involves taking the affected muscle to resistance, performing a submaximal contraction of the stretched muscle away from the barrier for 5–10 seconds with an inhale, followed by relaxation and a gentle stretch to a new barrier?

Which stretching technique involves taking the affected muscle to resistance, performing a submaximal contraction of the stretched muscle away from the barrier for 5–10 seconds with an inhale, followed by relaxation and a gentle stretch to a new barrier?

• A. Active Isolated Stretching
• B. Post Isometric Relaxation (PIR)
• C. CRAC
• D. Post Facilitation Stretch

Answer: (B)

Post Isometric Relaxation relies on a brief isometric contraction of the muscle being stretched to reset its length and allow a greater stretch afterward. The muscle is taken to the end of its range (the barrier), then the person gently contracts that same muscle against resistance in a direction away from the barrier for about 5–10 seconds, often coordinating a breath in during the effort. When the contraction stops, the muscle is relaxed and the clinician passively stretches it to a new, farther barrier. This sequence leverages the Golgi tendon organ reflex: the isometric contraction sensitizes inhibitory mechanisms that reduce muscle tension, so the subsequent relaxation allows a longer, easier stretch. Breathing is part of the technique in practice, typically with an inhale during the contraction, but the essential idea is the isometric hold followed by a deeper stretch. This approach centers on the muscle being stretched itself, rather than contracting the opposite muscle or using other facilitation strategies, which distinguishes it from other stretching methods.

Post Isometric Relaxation relies on a brief isometric contraction of the muscle being stretched to reset its length and allow a greater stretch afterward. The muscle is taken to the end of its range (the barrier), then the person gently contracts that same muscle against resistance in a direction away from the barrier for about 5–10 seconds, often coordinating a breath in during the effort. When the contraction stops, the muscle is relaxed and the clinician passively stretches it to a new, farther barrier. This sequence leverages the Golgi tendon organ reflex: the isometric contraction sensitizes inhibitory mechanisms that reduce muscle tension, so the subsequent relaxation allows a longer, easier stretch.

Breathing is part of the technique in practice, typically with an inhale during the contraction, but the essential idea is the isometric hold followed by a deeper stretch. This approach centers on the muscle being stretched itself, rather than contracting the opposite muscle or using other facilitation strategies, which distinguishes it from other stretching methods.