一過性の綱渡り練習がバランス因子に及ぼす影響

[Purpose] The aim of this study was to elucidate the effect of a transient 2-minute tightrope walking exercise on the tightrope walking distance, total locus length, unit locus length, unit area locus length, and environmental area. [Subjects and Methods] The subjects were 12 males. For the balance exercise, a 4-m-long tightrope was set at a height of 30 cm and the setup was tested by a 2-min barefoot traverse of the tightrope to ensure that there was no chance of slipping. A stabilometer was used to assess balance via postural sway parameters of two- and one-legged standing over 15 sec with the eyes open and closed. [Results] After the exercise, the total locus length and locus length per unit area of one-legged standing on the right foot with both the eyes open and closed significantly decreased. For the left foot, total locus length and locus length per unit area significantly decreased for the eyes open condition, while the perimeter of the locus area significantly increased. [Conclusion] The tightrope walking exercise affected the static balance of one-legged standing.

〔目的〕一過性の2分間の綱渡り練習が，綱渡り距離，総軌跡長，単位軌跡長，単位面積軌跡長，および外周面積に及ぼす影響を検討した．〔対象と方法〕男性12人とした．バランス練習は，長さ400 cmの綱を高さ30 cmに設置し，滑らないように裸足で2分間渡り続けた．重心動揺測定は，各測定項目において両足立ちと片足立ちについて，開眼時および閉眼時で15秒間実施した．〔結果〕右足開眼立ちと閉眼立ちにおいて総軌跡長と単位軌跡長が有意に減少した．左足立ちは，開眼立ちで総軌跡長と単位面積軌跡長が有意に減少し，外周面積が有意に増加した．〔結語〕一過性の2分間綱渡り練習の実施によりバランス因子が向上した．