Table 1. .

Demographic and Physical Characteristics of Participants

Characteristic	Group		P Value
	Control (n = 70)	Index Ankle Sprain (n = 30)
Sex (No.)
Male	24	17	.50
Female	46	13
Age, y (mean ± SD)	27.4 ± 8.3	31.1 ± 13.3	.09
Height, cm (mean ± SD)	168.7 ± 9.5	168.3 ± 9.1	.66
Mass, kg (mean ± SD)	65.0 ± 12.5	67.3 ± 13.7	.35
Body mass index (mean ± SD)	22.7 ± 2.9	23.6 ± 3.7	.20
International Physical Activity Questionnaire (No.)
Low physical activity level	19	9	.85
Moderate physical activity level	30	11
Vigorous activity level	21	10
Foot posture index (mean ± SD)	4.7 ± 2.7	4.2 ± 2.5	.99
Ligamentous laxitya (No.)
0	4	4	.09
1	41	11
2	25	14
3	0	1
Cumberland Ankle Instability Tool (mean ± SD)	28.6 ± 2.2	24.0 ± 7.4	.01b

^aLigamentous laxity scores: 0 = stiff, 1 = normal, 2 = moderately lax, 3 = severely lax.

^bIndicates difference (P < .05).