Age-differences in the free vertical moment during step descent.

  title={Age-differences in the free vertical moment during step descent.},
  author={John G. Buckley and Steven F Jones and Louise D Johnson},
  journal={Clinical biomechanics},
  volume={25 2},
BACKGROUND This study utilises a rarely examined biomechanical parameter--the free vertical moment--to determine age-related differences in rotational kinetics of the body about the vertical-axis when stepping down from a stationary position. METHODS Ten older and 10 young adults completed step-downs from three heights. Free vertical moment impulse and peak during step-initiation double-support and the subsequent step-execution phase, and vertical-axis pelvis angular displacement and velocity… CONTINUE READING