Table 5.

Cross-sectional strength and bone mineral density data by age at T3

Total Group n60–69 yr n70–78 yr n79–89 yr n90+ yr n
Leg press 1 RM, kg 120.7 ± 32.9 21134.4 ± 29.3 9 126.4 ± 9.7 5126.7 ± 21.9 4 62.1 ± 17.25-151 3
Chest press 1 RM, kg 54.9 ± 17.1 2265.4 ± 13.5 9 57.6 ± 14.3 644.9 ± 12.4 4 31.0 ± 5.75-150 3
Lumbar peak torque, N ⋅ m 292.2 ± 58.0 22326.4 ± 50.05-152 10 297.8 ± 50.0 5234.6 ± 28.1 4 245.4 ± 45.4 3
Bone mineral density, g/cm2
 L2 1.126 ± 0.119 23 1.163 ± 0.134 101.082 ± 0.131 6 1.098 ± 0.066 41.128 ± 0.115 3
 L3 1.181 ± 0.125 23 1.177 ± 0.132 101.186 ± 0.147 6 1.190 ± 0.120 41.174 ± 0.126 3
 L1–4 1.148 ± 0.112 23 1.157 ± 0.132 101.124 ± 0.127 6 1.154 ± 0.085 41.157 ± 0.075 3
 Total body1.185 ± 0.050 23 1.203 ± 0.057 101.185 ± 0.022 6 1.182 ± 0.046 41.129 ± 0.0415-150 3
 Trochanter0.859 ± 0.103 23 0.888 ± 0.117 100.839 ± 0.105 6 0.834 ± 0.051 40.837 ± 0.133 3
  • Values are means ± SD; n, no. of subjects. 1 RM, 1 repetition maximum. Of 23 subjects evaluated for bone mineral density, two 90+ yr subjects were evaluated only at T3. Significant difference (P ≤ 0.05):

  • F5-150 90+ yr vs. 60–69 yr;

  • F5-151 90+ yr vs. 69–69 yr, 70–78, and 79–89 yr;

  • F5-152 60–69 yr vs. 79–89 and 90+ yr.