Table 5. Percentage of Lumbar flexion range of motion at day 14
100-Hz electroacupuncture
2-Hz electroacupuncture
p
n
%
n
%
Lumbar flexion range of motion
<0.092
≥ 14 cm
30
48.4
20
32.3
13 − 14 cm
27
43.5
30
48.4
12 – 13 cm
5
8.1
12
19.4
< 12cm
0
0
0
0