Table 3.  Parameters of leg spring-mass model during vertical jumping. Data are means ( ±SD).
 

Young Group

Older Group

Normalized Fyhip-lowest (BW)

1.21 (.09)

.97 (.14) *

Normalized ΔYhip (Length)

.41 (.07)

.31 (.08) *

Normalized kleg (BW/Length)

3.03 (.56)

3.25 (.86)
* significant difference between groups, p<0 .05.