TY - JOUR PY - 2014// TI - The relationship between physical function and postural sway during local vibratory stimulation of middle-aged people in the standing position JO - Journal of physical therapy science A1 - Ito, Tadashi A1 - Sakai, Yoshihito A1 - Kubo, Akira A1 - Yamazaki, Kazunori A1 - Ohno, Yasuo A1 - Nakamura, Eishi A1 - Sato, Noritaka A1 - Morita, Yoshifumi SP - 1627 EP - 1630 VL - 26 IS - 10 N2 - [Purpose] The purpose of this study was to examine the relationship between physical function and postural sway during local vibratory stimulation of middle-aged subjects in an upright position. [Subjects] The subjects were 25 healthy community-dwelling middle-aged people. [Methods] We measured postural sway using a Wii board while vibratory stimulations of 30, 60, or 240 Hz were applied to the subjects' lumbar multifidus or gastrocnemius muscles. Physical function was evaluated by 5-m usual gait speed and grip strength. [Results] Gait speed was strongly correlated to the anteroposterior body sway in the upright position during 30 Hz gastrocnemius muscles vibration (GMV). [Conclusion] Postural sway during 30 Hz GMV was strongly associated with gait speed and showed a posterior displacement. These findings show that the lower leg's response to balance control under 30 Hz proprioceptive stimulation might be a good indicator of declining gait function.

Language: en

LA - en SN - 0915-5287 UR - http://dx.doi.org/10.1589/jpts.26.1627 ID - ref1 ER -