Table 2 The basic demographic and clinical characteristics of the 3 groups of samples

Age (years)

74.42 ± 6.17

72.64 ± 5.92

74.91 ± 5.05

0.58

Height (m)

1.73 ± 0.05

1.73 ± 0.06

1.71 ± 0.06

0.81

The operation time

4.42 ± 1.22

4.46 ± 1.37

4.23 ± 1.23

0.88

Whether have diabetes or hypertension

0.24

 Yes

7

9

9

 No

5

5

2

Time between the surgery  and the start of exercise

0.53

 less than 3 months

3

2

2

 4–6  months

6

7

5

 more than 7 months

3

5

4

Type of surgery

0.31

 Radical retropubic prostatectomy

8

9

5

 Laparoscopc radical  prostatectomy

4

5

6

Whether the nerve bundle is retained

0.88

 Yes

8

9

7

 No

4

5

4

Gleason score

0.53

  ≤ 7

6

8

4

  > 7

6

6

7