Postural responses accompanying Achilles tendon vibration stimulation during various phases of sit-to-stand movement
Postural responses accompanying Achilles tendon vibration stimulation during various phases of sit-to-stand movement
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DOI：
10.1068/p7470
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发表时间：
2013-01-01
期刊：
影响因子：
1.7
通讯作者：
Kiyote, Naoe
中科院分区：
文献类型：
--
作者：
Kurokawa, Nozomi;Fujiwara, Katsuo;Kiyote, Naoe
The aim of this study was to determine the postural response accompanying Achilles tendon vibration stimulation during various phases of the sit-to-stand movement. Twelve healthy young adults performed the sit-to-stand movement in response to an auditory signal 2 s after a first one. Vibration stimulation with a 100 Hz frequency was applied to both Achilles tendons during the following phases: (1) 10 s of sitting before standing up; (2) 10 s plus a period until the standing position was achieved; and (3) 5 s after standing. The postural response after standing was analyzed with the center of foot pressure in the anteroposterior direction. Forward-leaning responses were identified in 78.3% and 63.3% of trials under conditions 1 and 2, respectively. Backward-leaning responses were identified in 93.3% of the trials under condition 3. Response latency (+/- standard deviation) was significantly longer under conditions 1 and 2 than under condition 3 (1: 872 +/- 576, 2: 1026 +/- 542, and 3: 555 +/- 322 ms; ps < 0.05). Sensory information at the standing point might be anticipated based on sensory information received while sitting. Consequently, postural response as a compensatory movement would occur via the sensory reference system within the supraspinal nervous system.
