BMC Musculoskeletal Disorders

Table 2 Within-group comparisons of vertical jump, flexibility, agility and pain intensity before and after the interventions

From: Effects of whole body vibration with exercise therapy versus exercise therapy alone on flexibility, vertical jump height, agility and pain in athletes with patellofemoral pain: a randomized clinical trial

Variable		WBV ^a + Exercise group (n = 12)				Exercise-only group (n = 12)
Variable		Pre	Post	p-value		Pre	Post	p-value
Vertical jump (cm)	(mean ± SD ^b)	46.66 ± 3.52	48.16 ± 3.88	<0.001*		47.83 ± 3.85	49.00 ± 4.17	<0.001*
Vertical jump (cm)	95% CI (Upper bound- Lower bound	48.90–44.42	50.63–45.70	<0.001*		50.28–45.38	51.65–46.34	<0.001*
Flexibility (cm)	(mean ± SD ^b)	19.16 ± 2.51	23.91 ± 2.77	<0.001*		20.08 ± 2.27	21.66 ± 2.05	0.001*
Flexibility (cm)	95% CI (Upper bound- Lower bound)	20.76–17.56	25.68–22.15	<0.001*		21.52–18.63	22.97–20.35	0.001*
Agility (second)	(mean ± SD ^b)	7.18 ± 0.41	6.65 ± 0.41	<0.001*	0.542	7.19 ± 0.24	6.77 ± 0.32	<0.001*	0.596
Agility (second)	95% CI (Upper bound- Lower bound	7.44–6.92	6.91–6.39	<0.001*	0.542	7.35–7.03	6.98–6.56	<0.001*	0.596
Pain (0–10)	(mean ± SD ^b)	5.83 ± 0.83	3.16 ± 1.19	<0.001*	0.655	6.08 ± 0.99	3.83 ± 1.40	<0.001*	0.680
Pain (0–10)	95% CI (Upper bound- Lower bound	6.36–5.30	3.92–2.40	<0.001*	0.655	6.71–5.45	4.72–2.94	<0.001*	0.680

^a Whole body vibration, ^b Standard Deviation, * Statistically significant change (p<0.05)

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