Table 2: Characteristics of men in the three exercise intensity groups (METGp1-3).
| METGp1 | METGp2 | METGp3 | P values | |
| n = 152 | n = 242 | n = 137 | ||
| Age (y) | 49.1 ± 0.70 | 49.8 ± 0.60 | 53.2 ± 0.60 | 1, 2 vs. 3 (0.002, 0.004) |
| METmin | 0 | 569 ± 20 | 2410 ± 92 | 1, 2 vs. 3 (< 0.001, < 0.001), 2 vs. 3 (< 0.001) |
| RT (msec) | 2479 ± 39 | 2369 ± 27 | 2363 ± 24 | 1 vs. 2 (0.032) |
| Grip (Kgf) | 37.5 ± 0.50 | 38.1 ± 0.30 | 39.2 ± 0.50 | 1 vs. 3 (0.036) |
| WBSc | 19.5 ± 0.9 | 17.1 ± 0.60 | 15.0 ± 0.70 | 1 vs. 3 (0.001) |
| Sbmd (g/cm2) | 1.011 ± 0.015 | 1.033 ± 0.011 | 1.101 ± 0.016 | 1, 2 vs. 3 (< 0.001, 0.001) |
| Hbmd (g/cm2) | 0.818 ± 0.010 | 0.841 ± 0.008 | 0.893 ± 0.012 | 1, 2 vs. 3 (< 0.001, < 0.001) |
| TBMC (g) | 2632 ± 30 | 2620 ± 22 | 2742 ± 30 | 1, 2 vs. 3 (0.030, 0.003) |
| PLM (%) | 72.9 ± 0.46 | 73.9 ± 0.38 | 74.8 ± 0.31 | 1 vs. 3 (0.005) |
| PBMC (%) | 3.92 ± 0.041 | 3.93 ± 0.030 | 4.06 ± 0.040 | 1, 2 vs. 3 (0.043, 0.024) |
| PBF (%) | 18.7 ± 0.44 | 17.9 ± 0.28 | 16.7 ± 0.44 | 1, 2 vs. 3 (0.002, 0.050) |
| T (ng/ml) | 5.08 ± 0.14 | 4.94 ± 0.12 | 5.45 ± 0.17 | 2 vs. 3 (0.036) |
| SHBG mmol/L | 28.8 ± 0.86 | 28.8 ± 0.67 | 33.0 ± 0.94 | 1, 2 vs. 3 (0.003, 0.001) |
| INS (SI unit) | 7.92 ± 0.34 | 7.66 ± 0.27 | 6.82 ± 0.35 | 1 vs. 3 (0.029) |
| TC/HDL | 4.54 ± 0.09 | 4.81 ± 1.2 | 4.39 ± 0.07 | 1, 2 vs. 3 (0.050, 0.001) |
| HDL (mmol/L) | 1.32 ± 0.025 | 1.31 ± 0.017 | 1.42 ± 0.031 | 1, 2 vs. 3 (0.015, 0.002) |
| LDL (mmol/L) | 3.71 ± 0.07 | 3.87 ± 0.06 | 3.58 ± 0.08 | 2 vs. 3 (0.013) |
| SOsteopn | 36/120 (30.0%) | 55/230 (23.9%) | 24/132 (18.2%) | 1 vs. 3 (0.020) |
| HOsteopn | 58/120 (48.3%) | 96/228 (42.1%) | 44/132 (33.3%) | 1 vs. 3 (0.011) |
| Mast | 33/121 (27.350%) | 69/227 (30.450%) | 53/129 (41.1%) | 1, 2 vs. 3 (0.021, 0.002) |
The parametric measures are presented as ± SE. METmin: Exercise intensity; RT: Retention time of the perceptual capacity test;
Grip: Handgrip strength; WBSc: Well-being score; Sbmd: Bone mineral density of the spine at the L2-l4;
Hbmd: Bone mineral density of the hip at the femoral neck; TBMC: Total bone mineral content; PLM: Percent lean mass;
PBMC: Percent bone mineral content; PBF: Percent body fat; T: Testosterone level;
SHBG: Sex hormone binding globulin; INS: Insulin level; TC/HDL: Total cholesterol/HDL ratio;
HDL: High density lipoprotein cholesterol; SOsteopn: Osteopenia of the spine at L2-L4; HOsteopn: Osteopenia of the hip at the femoral neck;
Mast: Number of persons who engaged in self-masturbation.