The contributions of ankle, knee and hip joint work to individual leg work change during uphill and downhill walking over a range of speeds.

ABSTRACT: The muscles surrounding the ankle, knee and hip joints provide 42, 16 and 42%, respectively, of the total leg positive power required to walk on level ground at various speeds. However, each joint's contribution to leg work when walking up/downhill at a range of speeds is not known. Determining each biological joint's contribution to leg work over a range of speeds and slopes can inform the design of biomimetic assistive devices (i.e. prostheses). Twenty healthy adults walked 1.00, 1.25 and 1.50 m s^-1 on 0°, ±3°, ±6° and ±9° while we collected kinematic and kinetic data. We calculated sagittal plane joint work and individual leg work over the entire stance phase. The ratio of ankle joint to total individual leg positive work (summed ankle, knee and hip joint work) did not change

SUBMITTER: Montgomery JR 

PROVIDER: S-EPMC6124028 | biostudies-literature | 2018 Aug

REPOSITORIES: biostudies-literature