@misc{oai:tokyo-metro-u.repo.nii.ac.jp:00006896, author = {イデ, ナツキ and 井手, 夏葵}, month = {Mar}, note = {右肩甲骨の抵抗運動方向の差異が対側下肢に及ぼす神経生理学的遠隔効果・後効果を,左ヒラメ筋H波を指標として検証した.右利き健常成人12名を対象に,3種類の課題(前方挙上の抵抗運動による静止性収縮と運動後安静(SCAE課題)・後方下制の抵抗運動による静止性収縮と運動後安静(SCPD課題)・安静課題)を無作為に各被験者に実施した.左ヒラメ筋H波を課題前安静20秒・課題時190秒の計210秒間誘発し,10秒ごとに相分けした,H/Mmaxを指標とした多重比較検定の結果,SCPD課題・安静課題と比較してSCAE課題において有意に抑制した.また,安静課題と比較してSCPD課題において有意な促通を示した.時間要因に有意な主効果は認められなかったが,SCAE後の神経生理学的遠隔後効果として抑制傾向を示すことから,遠隔の特定の方向への抵抗運動による静止性収縮によりリラクセーション効果が得られる可能性が示唆された., An indirect approach can be useful in clinical practice when it is difficult to use a direct approach without enough muscle contraction due to muscle weakness. The purpose of this study was to compare the neurophysiological remote effects and after-effects of the resistive static contraction of the muscles of around the scapulae, considering the resistant direction. The participants included 12 normal subjects with a mean (SD) age of 23.7 (3.4) years. A 10-s SC of the muscles around the scapula utilizing resistive static contraction of scapular anterior elevation (SCAE) and scapular posterior depression (SCPD) using the proprioceptive neuromuscular facilitation. The subjects were asked to maintain scapular position against the traction force, at a level of resistance that was 50% of the maximum voluntary contraction. The left soleus H-reflexes were elicited sequentially without interruption for a period of 210 s. The period of 210 s was divided into 3 conditions (condition-1 represented the rest phase, 20 s; conditions-2 represented the task phase, 10 s; and condition-3 represented the rest phase after each task, 180 s). For comparison, each H-reflex amplitude during and after each resistive exercise was normalized to the corresponding maximal M wave (Mmax), as expressed by the ratio of H/Mmax. The data were obtained from a randomized block experiment with three tasks (SCAE, SCPD, resting) for each subject (individual factor) over a period of 190 s (19 conditions [time course]: condition C1～C19). Three-way analysis of variance for the H/Mmax ratio was used with Bonferroni's post-hoc analysis revealed that the SCAE task showed significantly smaller results than both the SCPD and resting tasks, and the SCPD task showed significantly larger results than the resting task (p