Table 5.

Comparison of pre- and posttest results of exercise groups

Problem	Groups	n	x̄	SS	Z*	P
Numbness in the hand	Pretest	30	2.2	2.3	−0.64	0.52
	Posttest	30	1.8	1.9
Numbness in the foot	Pretest	30	4.0	2.2	−0.87	0.39
	Posttest	30	3.8	1.8
Tingling in the hand	Pretest	30	0.7	1.2	−0.11	0.92
	Posttest	30	0.7	1.1
Tingling in the foot	Pretest	30	1.5	1.9	−0.28	0.78
	Posttest	30	1.3	1.6
Discomfort	Pretest	30	4.1	1.8	−2.5	0.01
	Posttest	30	3.5	1.5
Cold sensitivity	Pretest	30	1.5	2.3	−1.1	0.25
	Posttest	30	1.9	18.0
Pain	Pretest	30	4.1	2.7	−1.2	0.23
	Posttest	30	3.4	2.2
Weakness	Pretest	30	3.2	3.1	−0.37	0.72
	Posttest	30	3.0	2.8
Loss of balance	Pretest	30	0.6	1.2	−0.63	0.53
	Posttest	30	0.8	1.5
Distress situation	Pretest	30	31.0	1.8	−1.5	0.13
	Posttest	30	3.8	1.1

*Wilcoxon signed-rank test