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To investigate the association between sedentary duration, physical activity, and male sperm quality.
Based on 1 578 semen samples from the Sichuan Human Sperm Bank, a linear regression model and restricted cubic spline analysis were employed to examine the linear and nonlinear associations of daily sedentary duration, weekly physical activity volume, and physical activity level with conventional semen parameters and sperm kinetic parameters.
Daily sedentary duration and weekly physical activity volume showed significant nonlinear associations with forward motility, immotility, and total motility (P <0.05). Additionally, weekly physical activity volume was significantly nonlinearly associated with average curvilinear velocity, average path velocity, average straight-line velocity, and average flagellar beat frequency (P < 0.05). Compared to the low activity group, the moderate and high activity groups had significant improvements in forward motility [% Change (95%CI): 4.302 (1.691-6.979), 2.816(0.227-5.472)], total motility [% Change (95%CI): 3.624 (1.227-6.079), 2.567 (0.179-5.012)], average curvilinear velocity [%Change (95%CI): 6.600 (3.021-10.304), 3.958 (0.446-7.594)], average path velocity [% Change (95%CI): 6.529 (2.987-10.193),4.012 (0.532-7.613)], and average straight-line velocity [% Change (95%CI): 5.992 (2.049-10.087), 4.221 (0.319-8.274)], with the moderate activity group showing more pronounced improvements.
Both insufficient and excessive daily sedentary duration are risk factors for male sperm quality, with insufficient sedentary duration potentially posing greater harm. Maintaining regular and moderate physical activity is beneficial for improving sperm quality.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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