Table 2.

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

Variables	Group A	Group B	Group C	P value
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