Table 2.
Comparison of lower limb skeletal muscle content, muscle strength, bone mineral density and balance function indexes for the subjects in the three groups before exercise and after 4 months (x̅ ± s)
| Detection indexes | Control group I (n = 33) | Control group II (n = 30) | Observation group (n = 31) | |||
|---|---|---|---|---|---|---|
|
| ||||||
| Before exercise | After 4 months | Before exercise | After 4 months | Before exercise | After 4 months | |
| Bone quality index (BQI) | 71.37 ± 13.27 | 76.63 ± 13.91 | 70.81 ± 14.75 | 76.52 ± 15.46 | 71.03 ± 16.30 | 75.66 ± 15.48 |
| Lower limb bone muscle content (kg) | 5.69 ± 1.02 | 5.84 ± 1.07 | 5.32 ± 1.05 | 5.60 ± 1.04* | 5.53 ± 1.09 | 5.67 ± 1.06 |
| Hip extension strength (N) | 206.26 ± 31.37 | 217.30 ± 32.17* | 199.76 ± 29.25 | 214.33 ± 28.54* | 203.19 ± 30.35 | 209.46 ± 29.88 |
| Knee extension strength (N) | 181.52 ± 28.71 | 192.30 ± 29.04* | 177.97 ± 27.55 | 189.46 ± 28.02* | 179.35 ± 29.01 | 190.62 ± 28.79* |
| Talocrural joint dorsal flexion strength (N) | 101.86 ± 20.39 | 113.41 ± 20.58* | 100.91 ± 19.75 | 115.07 ± 21.18* | 101.29 ± 22.37 | 108.72 ± 21.81 |
| Comprehensive shake index (°) | 5.22 ± 0.91 | 4.71 ± 0.84* | 5.30 ± 0.92 | 4.70 ± 0.90* | 5.28 ± 0.89 | 4.72 ± 0.90* |
| Front and back shake index (°) | 4.42 ± 0.76 | 4.05 ± 0.58* | 4.50 ± 0.80 | 4.01 ± 0.78* | 4.47 ± 0.75 | 4.01 ± 0.74* |
| Wavered index (°) | 3.46 ± 0.58 | 3.02 ± 0.56* | 3.48 ± 0.60 | 3.02 ± 0.59* | 3.50 ± 0.60 | 3.07 ± 0.58* |
| Eyes closed and stepping in place (s) | 6.09 ± 3.12 | 6.97 ± 3.24* | 6.11 ± 3.30 | 7.28 ± 3.42* | 6.10 ± 3.29 | 6.45 ± 3.27 |
Note: Comparison of the subjects in the three groups after and before exercis;
*
P < 0.05.