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Table 2.

Comparison of the landing–take-off asymmetry between old subjects,young subjects and a symmetric elastic bounce

OldYoungElastic
Rint,down/Rint,up 2.13±1.30 1.26±0.32 
Ek,mx,downEk,mx,up (J) 10.03±6.25* 7.52±5.42 
α/β 1.24±0.18 1.06±0.10 
tpush/tbrake 1.25±0.16 1.15±0.13 
OldYoungElastic
Rint,down/Rint,up 2.13±1.30 1.26±0.32 
Ek,mx,downEk,mx,up (J) 10.03±6.25* 7.52±5.42 
α/β 1.24±0.18 1.06±0.10 
tpush/tbrake 1.25±0.16 1.15±0.13 

Values are means ± s.d. [P<0.001, N=124(*N=122) for old and N=195 for young]

Speed range: 3–17 km h–1. For an explanation of symbols, please see the List of symbols and abbreviations

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