Table 2. .

Kinematics During Single-Legged Drop-Jump Task

Kinematics	Group									F2,66 Value	P Value
	Functional Ankle Instability			Coper			Control
	Mean	Standard Error	95% Confidence Interval	Mean	Standard Error	95% Confidence Interval	Mean	Standard Error	95% Confidence Interval
Initial contact
Forefoot
Sagittal planea	–10.32	0.82	–11.96, −8.68	–7.94	0.82	–9.58, −6.30	–10.69	0.82	–12.33, −9.04	3.31	.043c
Frontal planeb	–4.58	0.52	–5.62, −3.53	–5.41	0.52	–6.46, −4.36	–5.79	0.52	–6.84, −4.74	1.40	.245
Hindfoot
Sagittal planea	–10.08d,e	0.77	–11.62, −8.54	–13.26e	0.77	–14.80, −11.72	–13.51d	0.77	–15.05, −11.96	4.01	.004c
Frontal planeb	7.81	1.08	5.66, 9.96	6.67	1.08	4.52, 8.81	8.54	1.08	6.40, 10.69	0.77	.466
Maximum vertical ground reaction forces
Forefoot
Sagittal planea	7.07	0.62	5.83, 8.31	6.47	0.62	5.23, 7.71	5.93	0.62	4.69, 7.17	0.84	.435
Frontal planeb	–2.95	0.55	–4.04, −1.86	–3.72	0.55	–4.82 −2.63	–4.38	0.55	–5.47, −3.29	1.72	.188
Hindfoot
Sagittal planea	4.88	0.84	3.21, 6.56	5.22	0.84	3.55, 6.90	4.92	0.84	3.25, 6.60	0.05	.952
Frontal planeb	–8.42	0.74	–9.90, −6.95	–8.74	0.74	–10.22, −7.26	–7.70	0.74	–9.17, −6.22	0.52	.596

^aPositive angle indicates dorsiflexion; negative angle indicates plantar flexion.

^bPositive angle indicates inversion; negative angle indicates eversion.

^cDifference among groups.

^dDifference between control and functional ankle-instability groups.

^eDifference between coper and functional ankle-instability groups.