Article

The aim of this study was to investigate the relationship between a
clinical test of ankle plantarflexor strength and ankle power generation (APG) at
push-off during walking. DESIGN: This is a prospective cross-sectional study of
102 patients with traumatic brain injury. OUTCOME MEASURES: Handheld dynamometry
was used to measure ankle plantarflexor strength. Three-dimensional gait analysis
was performed to quantify ankle power generation at push-off during walking.
RESULTS: Ankle plantarflexor strength was only moderately correlated with ankle
power generation at push-off (r = 0.43, P < 0.001; 95% confidence interval,
0.26-0.58). There was also a moderate correlation between ankle plantarflexor
strength and self-selected walking velocity (r = 0.32, P = 0.002; 95% confidence
interval, 0.13-0.48). CONCLUSIONS: Handheld dynamometry measures of ankle
plantarflexor strength are only moderately correlated with ankle power generation
during walking. This clinical test of ankle plantarflexor strength is a poor
predictor of calf muscle function during gait in people with traumatic brain
injury.

Langue : ANGLAIS