Table 4 Sperm parameters among sperm donation candidates according to time devoted to running or cycling. No significant differences

Time spent on sport per week

≤ 1h (n = 18)

> 1h (n = 17)

p

≤ 1h (n = 37)

> 1h (n = 29)

p

Cycling

Running

p

Volume (cc)

3.28 ± 1.51

3.83 ± 2.02

0.37

3.23 ± 1.34

3.20 ± 1.62

0.94

3.55 ± 1.76

3.22 ± 1.46

0.157

Concentration (million spermatozoa/cc)

58.36 ± 33.98

73.67 ± 46.74

0.27

66.62 ± 42.02

63.23 ± 34.56

0.73

65.80 ± 40.18

65.13 ± 38.74

0.825

Progressive spermatozoa (%)

50.88 ± 15.36

47.28 ± 16.75

0.51

49.45 ± 15.93

49.78 ± 14.97

0.93

49.13 ± 16.04

49.60 ± 15.51

0.78

Non-progressive spermatozoa (%)

6.76 ± 3.13

7.89 ± 4.83

0.42

7.48 ± 4.40

6.59 ± 2.97

0.36

7.31 ± 3.96

7.09 ± 3.77

0.808

Total motile progressive (million spermatozoa)

104.04 ± 90.41

118.39 ± 93.64

0.65

102.32 ± 74.75

91.56 ± 60.14

0.53

111.01 ± 91.98

97.59 ± 68.33

0.547

Normal morphology (%)

3.07 ± 1.91

2.89 ± 1.64

0.78

3.25 ± 1.60

3.25 ± 2.01

1.00

2.98 ± 1.78

3.25 ± 1.78

0.147