Award Date


Degree Type


Degree Name

Master of Science in Kinesiology


Kinesiology and Nutrition Sciences

First Committee Member

John Mercer

Second Committee Member

Richard Tandy

Third Committee Member

James Navalta

Fourth Committee Member

Daniel Young

Number of Pages



Purpose: The purpose of this study was to determine the effect of foam rolling on hamstrings flexibility, isometric and isokinetic torque. Participants: Thirteen female participants (N = 13; age: 28.5 + 6.8 years of age; height: 165.5 + 6.7 cm; mass: 64.2 + 8.4 kg) volunteered to participate in the study.

Methods: Hamstring flexibility was assessed using a sit and reach test; muscle strength was assessed by having participants complete a maximal voluntary isometric contraction (MVIC) of the hamstrings and maximal effort isokinetic knee flexion test using an isokinetic dynamometer. Participants completed these tests prior to any intervention (pre-rolling 1), after sitting quietly for 3 minutes (pre-rolling 2), and after completing a bout of foam rolling (post-rolling). Foam rolling was performed for two one-minute sets, with one minute rest in between. Each dependent variable (flexibility, MVIC, peak isokinetic torque) was assessed using a repeated measures analysis of variance with Time (i.e., pre-rolling 1, pre-rolling 2, post-rolling) as the independent variable. A Bonferroni post-hoc was used when there was a significant omnibus F-ratio.

Results: Flexibility was different across tests (p<0.05) with flexibility during post being greater than pre-rolling 2 (p<0.05). Average isometric torque was not influenced by Time (p = 0.356). Peak isokinetic torque was not influenced by Time (p = 0.958).

Conclusions and Recommendations: Hamstring flexibility was greater following a single bout of foam rolling without negatively influencing isometric or isokinetic maximum voluntary contraction.


Applied kinesiology; Hamstring muscle; Massage therapy


Kinesiology | Medicine and Health Sciences | Physical Therapy | Physiotherapy

File Format


Degree Grantor

University of Nevada, Las Vegas




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