Comparison of total cold-water immersion's effects to ice massage on recovery from exercise-induced muscle damage

Journal of Experimental Orthopaedics

Table 1 Computation of within and between groups statistical significance of dependent variables at different timelines

Measure	Timeline	TCWI		IM		Significance
Measure	Timeline	Mean	Standard deviation	Mean	Standard deviation	Between-group (p-value)
CK (U/L)	Baseline	103.53	13.42	107.43	14.58	0.286
	2 H	219.57	58.82	236.73	75.73	0.331
	24 H	275.43	64.27	289.63	52.88	0.354
	48 H	174	25.97	235.3	44.002	< 0.001²
	72 H	109.7	12.94	190.77	33.09	< 0.001²
	Within-group (p-value)	< 0.001²		< 0.001²
1-RM (Kg)	Baseline	22.7	8.24	22.51	8.16	0.931
	2 H	16.66	8.31	17.53	8.04	0.683
	24 H	18.71	8.11	13.86	7.49	0.0191
	48 H	20.8	8.81	10.78	7.05	< 0.001²
	72 H	22.65	8.23	15.35	6.94	< 0.001²
	Within-group (p-value)	< 0.001²		< 0.001²
CMJ (Cm)	Baseline	23.65	6.95	23.65	6.52	0.871
	2 H	15.4	4.6	15.3	3.26	0.923
	24 H	18.16	4.9	11.58	3.2	< 0.001²
	48 H	21.13	21.13	7.98	3.13	< 0.001²
	72 H	23.63	4.88	13.61	2.68	< 0.001²
	Within-group (p-value)	< 0.001²		< 0.001²
DOMS		0	0	0	0	0.431
	2 H	2.7	0.98	3.27	0.78	0.0171
	24 H	7.23	0.93	7	0.87	0.321
	48 H	4	1.01	8.27	0.69	< 0.001²
	72 H	0.37	0.61	4.87	1.25	< 0.001²
	Within-group (p-value)	< 0.001²		< 0.001²

TCWI total cold-water immersion, IM Ice massage, CK Creatine Kinase, 1-RM one-repetition maximum, CMJ Countermovement jump, DOMS delayed onset muscle soreness, P-value: probability value, 1 Significant, 2 Extremely significant