Central set influences on gait

摘要: We tested the hypothesis that anxiety regarding potential consequences of a possible fall would alter gait patterns differently between younger and older adults. Sixteen fifteen adults participated in this study. Participants walked at selfdetermined velocity along 7.2-m walkway under 4 different conditions postural threat; walking varied depending on width constraints (0.60 m vs 0.15 m) height surface (floor elevated: 0 0.60 m). Results indicated although both altered their increased threat, movement adaptations observed among were substantially to those adopted by These age-dependent differences strongly evidenced joint kinematics variability pattern within each condition. Our findings also when threat increased, level muscle activation throughout cycle was distal musculature (gastrocnemius m. tibialis anterior m.) only. Based age-related observed, we believe alterations reflect central set modifications control are mediated heightened imposed testing conditions. modifications, it appears effects locomotion more pervasive for than