Stretching for less than 30 seconds has what effect on performance?

• A. Increases performance
• B. Decreases performance
• C. No change in performance
• D. Increases injury risk

Answer: (C)

Short static stretches of under 30 seconds per muscle group before activity generally don’t change performance in a meaningful way. This is because very brief holds don’t trigger the neural or mechanical changes that can temporarily dampen force production or speed. Longer static holds (roughly longer than 60 seconds in total per muscle group) are more likely to impair performance by altering muscle-tendon properties and the stretch-shortening cycle. So with a duration under 30 seconds, the expected impact is neutral. For best results, use a dynamic warm-up and keep static stretching brief if included.