Apunts Medicina de l'Esport (Castellano) Apunts Medicina de l'Esport (Castellano)

Acute effects of barefoot running and running requirement on lower-limb kinematics in habitually shod endurance runners

Marcos Muñoz Jimenez, Felipe García-Pinillos, Víctor M. Soto-Hermoso, Pedro A. Latorre-Román


The aim of this study was to analyse kinematic variables when running barefoot and when wearing conventional running shoes at comfortable and demanding running speeds. Sixty healthy recreational male runners (age=35.6±11.7 years old, body mass index=22.9±2.4kg/m2) performed trials in shod/barefoot running conditions on a treadmill at self-selected comfortable and demanding speeds. Photogrammetric techniques (2D) were employed. In barefoot conditions, contact time was shorter (p <0 001 at demanding speed flight time was shorter comfortable p
<0 05 and demanding p
<0 05 speeds and there was greater stride frequency at both p
<0 001 in addition barefoot conditions runners landed with significantly greater knee flexion p
<0 05 lower ankle dorsiflexion p
<0 001 and lower knee flexion in take x002d off at demanding speed p compared with shod conditions conclusion the current study has provided evidence to suggest that acute changes occur temporal variables kinematics between barefoot low high speeds habitually runners significant differences were found spatial x2013 events shorter times greater ankle dorsiflexion when was increased duration of timing decreased significantly both comfortable
<0 001 because of this stride and gait cycle was significantly faster thus there a higher frequency