2024-03-28T23:28:40Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:02005935
2023-05-02T04:59:21Z
1213:1620:1621:1682906832321
Effect of Brief Stretch of the Agonist on Occurrence of Premotion Silent Period
Yabe, K.
Mita, K.
Aoki, H.
Tsukahara, R.
Wakita, H.
Premotion silent period was observed in the agonist preceding fast voluntary movement in man. If the occurrence of a silence were affected by a brief stretch of the agonist before the movement, the silence would be expected to increase in frequency when the subject extended his knee joint against the force of gravity. Because gravity might cause the stretch of knee extensors. We studied in normal subjects performing vertical jump and knee extension in three positions with reference to direction of movement and gravity. It was confirmed that the premotion silences were obtained in both concentric and isometric contractions of agonist. No significant difference was found in the rate of occurrence of the silence among different positions. It was also found that there were no significant differences in latency and duration of silences, or the onset ot phasic discharges among three positions. The findings suggested that the occurrence of premotion silence was not due to a brief stretch of agonist prior to rapid voluntary movement.
departmental bulletin paper
名古屋大学総合保健体育科学センター
The Research Center of Health, Physical Fitness and Sports, Nagoya University
1986-03-31
application/pdf
総合保健体育科学
1
9
19
22
Nagoya Journal of Health, Physical Fitness & Sports
0289-5412
https://nagoya.repo.nii.ac.jp/record/2005935/files/njhpfs_9_1_19.pdf
eng