지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.1
- 수록면
- 494 - 505 (12page)
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초록· 키워드
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Objective To investigate the electrophysiological effects of focal vibration on the tendon and muscle belly in healthy people.Methods The miniaturized focal vibrator consisted of an unbalanced mass rotating offset and wireless controller. The parameters of vibratory stimulation were adjusted on a flat rigid surface as 65 mm at 70 Hz. Two consecutive tests on the different vibration sites were conducted in 10 healthy volunteers (test 1, the Achilles tendon; test 2, the muscle belly on the medial head of the gastrocnemius). The Hoffman (H)-reflex was measured 7 times during each test. The minimal H-reflex latency, maximal amplitude of H-reflex (Hmax), and maximal amplitude of the M-response (Mmax) were acquired. The ratio of Hmax and Mmax (HMR) and the vibratory inhibition index (VII: the ratio of the Hmax after vibration and Hmax before vibration) were calculated. The changes in parameters according to the time and site of stimulation were analyzed using the generalized estimating equation methods.Results All subjects completed the two tests without serious adverse effects. The minimal H-reflex latency did not show significant changes over time (Wald test: χ2=11.62, p=0.07), and between the two sites (χ2=0.42, p=0.52). The changes in Hmax (χ2=53.74, p<0.01), HMR (χ2=20.49, p<0.01), and VII (χ2=13.16, p=0.02) were significant over time with the adjustment of sites. These parameters were reduced at all time points compared to the baseline, but the decrements reverted instantly after the cessation of stimulation. When adjusted over time, a 1.99-mV decrease in the Hmax (χ2=4.02, p=0.04) and a 9.02% decrease in the VII (χ2=4.54, p=0.03) were observed when the muscle belly was vibrated compared to the tendon.Conclusion The differential electrophysiological effects of focal vibration were verified. The muscle belly may be the more effective site for reducing the H-reflex compared to the tendon. This study provides the neurophysiological basis for a selective and safe rehabilitation program for spasticity management with focal vibration.
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참고문헌 (23)
참고문헌 신청
Ahlborg L / 2006 / Whole-body vibration training compared with resistance training: effect on spasticity, muscle strength and motor performance in adults with cerebral palsy
Brogardh C / 2012 / No specific effect of whole-body vibration training in chronic stroke: a double-blind randomized controlled study / Arch Phys Med Rehabil 93 : 253 ~ 258
Caliandro P / 2012 / Focal muscle vibration in the treatment of upper limb spasticity: a pilot randomized controlled trial in patients with chronic stroke / Arch Phys Med Re
Conrad MO / 2011 / Effects of wrist tendon vibration on targeted upper-arm movements in poststroke hemiparesis / Neurorehabil Neural Repair 25 : 61 ~ 70
Fallon JB / 2007 / Vibration sensitivity of human muscle spindles and Golgi tendon organs / Muscle Nerve 36 : 21 ~ 29
Brogardh C / 2012 / No specific effect of whole-body vibration training in chronic stroke: a double-blind randomized controlled study / Arch Phys Med Rehabil 93 : 253 ~ 258
Caliandro P / 2012 / Focal muscle vibration in the treatment of upper limb spasticity: a pilot randomized controlled trial in patients with chronic stroke / Arch Phys Med Re
Conrad MO / 2011 / Effects of wrist tendon vibration on targeted upper-arm movements in poststroke hemiparesis / Neurorehabil Neural Repair 25 : 61 ~ 70
Fallon JB / 2007 / Vibration sensitivity of human muscle spindles and Golgi tendon organs / Muscle Nerve 36 : 21 ~ 29
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