Table 6. Stepwise Multiple Regression predicting bone mineral density (BMD) from isotonic leg strength variables in combined age groups.
BMD Site Predictor Variable β SEE R2
Total Body Quadriceps 1-RM .402 .116 .150 ***
Spine none
Femoral Neck Quadriceps 1-RM .423 .112 .501 ***
Age -.371
Trochanter Quadriceps 1-RM .395 .156 .144 ***
Total Hip Quadriceps 1-RM .650 .114 .414 ***
RM = repetition maximum. Independent variables: age, quadriceps 1-RM, and hamstrings 1-RM.*** p < 0.001.