Trunk Muscle Activity According to Pelvic Compression Methods During Plank Exercise: A Comparative Study of Individuals with and without Low Back Pain (플랭크 운동 시 골반 압박 방법에 따른 요통 경험자와 비경험자 간에 체간근 근활성도 차이 비교)

Gee Won Yun (윤지원); Suhnyeop Kim (김선엽)

Trunk Muscle Activity According to Pelvic Compression Methods During Plank Exercise: A Comparative Study of Individuals with and without Low Back Pain

Journal of the Korean Society of Physical Medicine
Abbr : J Korean Soc Phys Med
2023, 18(3), pp.99-111
Publisher : The Korean Society of Physical Medicine
Research Area : Medicine and Pharmacy > Physical Therapy > Other physical therapy
Received : July 18, 2023
Accepted : August 11, 2023
Published : August 31, 2023

Gee Won Yun ¹, Suhnyeop Kim ¹

¹대전대학교

Accredited

ABSTRACT

PURPOSE: This study examined the effects of pelvic compression methods on the muscle activities of the trunk muscles during plank exercises in individuals with and without low back pain. METHODS: Individuals who experienced back pain for three or more days within the last six months (low back pain group, LBPG; n = 15) and those who did not (non-experienced low back pain group, NLBPG; n = 15) were instructed to perform plank exercise without pelvic compression or while wearing a ReaLine or Com-pressor belt. The electromyography (EMG) data was measured during each session of exercise. Surface EMG signals were collected for the rectus abdominis (RA), external oblique (EO), erector spinae (ES), and gluteus maximus (GM) muscles. The data were collected during three 5-s exercises with a 1-min rest period between the three sets. RESULTS: During the plank exercise, the muscle activity of the RA in the LBPG was significantly higher than that in the NLBPG (p < .05), and greater muscle activity was observed in the LBPG even when two pelvic compression methods were applied (p < .05). The muscle activity of RA was decreased significantly during pelvic compression according to the pelvic compression methods in both groups (p < .05). No significant interaction was observed between the groups or the pelvic compression methods for the RA, EO, ES, or GM muscle activities during plank exercises. CONCLUSION: Both pelvic compression methods reduced the RA muscle activity during plank exercises in individuals who had not experienced back pain within the last six months.

KEYWORDS

Com-pressor® belt, Electromyogram, Pelvic compression, Plank exercise, ReaLine®

Citation status

* References for papers published after 2023 are currently being built.

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