Table 2.

Summary of subject demographics with group differences.

Variable	Exercise	Control	Statistic	p
N	13	19
Age (yrs)
Range	37–63	26–59
Mean ± SD	50.4±9.1	46.6±9.1	t=1.17	0.25
Sex
Female	5	10	χ2 = 0.62	0.49
Male	8	9
Height (cm)
Range	155–187	159–184	t=1.78	0.09
Mean ± SD	172.87±7.51	167.87±7.82
Body weight (kg)			t=1.68	0.11
Range	52–82	50–79
Mean ± SD	70.53±8.03	64.80±10.51
Number of months since pain onset
Range	4–24	4–17
Mean ± SD	10.9±7.1	11.1±5.3	t=0.11	0.91

^*p<0.05.