Earticle

초록

영어

This study investigates the effect of vibration foam roller (VFR) applied to the hamstring, on the quadriceps electromyography (EMG) activity and hamstring flexibility. A total of 16 subjects were randomly assigned to either the VFR group (n=8) or the nonvibration foam roller group (NVFR, n=8). The two groups applied the foam roller or the VFR to the dominant hamstring, at a rate of 40 times per min, for a total of 200 times in 5 min. The primary outcome was to measure hamstring extensibility using the sit and reach test. The EMG activity of the dominant rectus femoris (RF), vastus lateralis (VL), and vastus medialis (VM) was mea-sured as the secondary outcome. Results indicate a significant in-crease in the sit and reach distance after the intervention in both groups, as compared to preintervention. The sit and reach difference between VFR and NVFR show no significant difference after the inter-vention. Significant increases were observed after intervention in the %maximum voluntary isometric contraction (%MVIC) of VL, VM, and RF in the VFR group, and RF in the NVFR group, as compared to the prein-tervention values. Furthermore, %MVIC values of VL and RF, but not the VM muscle, were significantly different between the two groups. These findings suggest that regardless of vibration, the application of foam roller to hamstring may exert a positive effect on hamstring flexibility. Furthermore, these results indicate that the application of foam roller with vibrations causes more EMG activation in the antagonists.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
Subjects
Study design
Foam roller technique
EMG (%MVIC) activity
Sit and reach test
Data analysis
RESULTS
General characteristics of subjects
Primary outcome
Secondary outcome
DISCUSSION
CONFLICT OF INTEREST
ACKNOWLEDGMENTS
REFERENCES

키워드

저자

• Jae-Heon Lim [ Department of Physical Therapy, Wonkwang Health Science University, Iksan, Korea ]
• Chi-Bok Park [ Department of Physical Therapy, Somoonnan Orthopedic Clinic, Gwangju, Korea ] Corresponding Author
• Byeong-Geun Kim [ Department of Integrated Medicine, Graduate School, Nambu University, Gwangju, Korea ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  JER [Journal of Exercise Rehabilitation]

• 간기

  격월간

• pISSN

  2288-176X

• eISSN

  2288-1778

• 수록기간

  2013~2026

• 등재여부

  SCOPUS,KCI 등재

• 십진분류

  KDC 517 DDC 613