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Acute Effects of Proprioceptive Neuromuscular Facilitation on Hamstring-to-Quadriceps Strength Ratio
Sponsor: Gümüşhane Universıty
Summary
This study aimed to compare the acute effects of proprioceptive neuromuscular facilitation (PNF) and static stretching on hamstring-to-quadriceps (H/Q) strength ratios in healthy young men. A randomized crossover design was used in which participants completed both stretching protocols on separate days. Isokinetic muscle strength and H/Q ratios were assessed following each intervention. The findings provide insight into the immediate effects of different stretching modalities on muscle balance and performance.
Official title: Acute Effects of Proprioceptive Neuromuscular Facilitation and Static Stretching on Hamstring-to-Quadriceps Strength Ratio in Healthy Young Men
Key Details
Gender
MALE
Age Range
18 Years - 25 Years
Study Type
INTERVENTIONAL
Enrollment
23
Start Date
2025-03-05
Completion Date
2025-04-20
Last Updated
2026-05-15
Healthy Volunteers
Yes
Interventions
PNF Stretching
Participants performed four repetitions of PNF stretching consisting of a 6-second isometric hamstring contraction at approximately 60% of maximal voluntary contraction followed by a 30-second passive stretch. Rest intervals were standardized.
Static Stretching
Participants performed four repetitions of static hamstring stretching, each lasting 30 seconds, with 30-second rest intervals between repetitions.
Locations (1)
Gumushane Univetsity
Gümüşhane, Trabzon, Ordu, Giresun, Rize, Artvin, Gümüşhane, Turkey (Türkiye)