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Updated: Mar 15, 2026

Muscle Imbalances: Testing and Training Functional Eccentric Hamstring Strength in Athletic Populations
Published on: May 1, 2018
Immediate Effects of Proprioceptive Neuromuscular Facilitation Stretching Programs Compared With Passive Stretching
Proprioceptive neuromuscular facilitation (PNF) stretching and static stretching programs equally improve hamstring flexibility immediately after use. Neither stretching method demonstrated superior effectiveness for enhancing hamstring flexibility in healthy adults.
Area of Science:
- Sports Medicine
- Rehabilitation Science
- Biomechanics
Background:
- Hamstring injuries are common in athletes and can be prevented by increasing hamstring flexibility.
- Clinical stretching interventions are used to improve hamstring flexibility, but the most effective method remains unclear.
Purpose of the Study:
- To compare the immediate effectiveness of proprioceptive neuromuscular facilitation (PNF) stretching versus static stretching programs in improving hamstring flexibility in healthy individuals.
Main Methods:
- A systematic literature search identified 5 studies meeting inclusion criteria.
- Studies compared the immediate effects of PNF stretching and static stretching on hamstring flexibility.
Main Results:
- Both PNF and static stretching programs are effective in increasing hamstring flexibility.
- No significant difference was found in the immediate improvements in hamstring flexibility between PNF and static stretching.
Conclusions:
- Current evidence suggests that neither PNF nor static stretching offers superior immediate benefits for hamstring flexibility.
- Both methods are equally effective for immediate hamstring flexibility gains in physically active adults.
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