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Hamstring tightness is common among physically active individuals. In addition to limiting range of motion and increasing the risk of muscle strain, hamstring tightness contributes to a variety of orthopedic conditions. Therefore, clinicians continue to identify effective methods to increase flexibility. Although hamstring tightness is typically treated with common stretching techniques such as static stretching and proprioceptive neuromuscular facilitation, it has been suggested that whole-body-vibration (WBV) training may improve hamstring flexibility.
Can WBV training, used in isolation or in combination with common stretching protocols or exercise, improve hamstring flexibility in physically active young adults?
Of the included studies, 4 demonstrated statistically significant improvements in hamstring flexibility in the intervention group, and 1 study found minor improvements over time in the intervention group after treatment.
There is moderate evidence to support the use of WBV training to improve hamstring flexibility in physically active young adults.
There is grade B evidence that WBV training improves hamstring flexibility in physically active adults. The Centre of Evidence Based Medicine recommends a grade of B for level 2 evidence with consistent findings.
Houston is with the Arizona School of Health Science, A.T. Still University, Mesa, AZ. Hodson and Adams are with the Dept of Human Movement Sciences, and Hoch, the School of Physical Therapy and Athletic Training, Old Dominion University, Norfolk, VA. Address author correspondence to Megan Houston at firstname.lastname@example.org.