Table 2.

ANCOVA results of squat scores, exercise changed, and exercise habit of three groups.

Group	Index	Situation	Sum of squares	df	Mean square	F	p	ω2
Younger	Total	Exercise changed	473.228	2	236.614	0.769	0.466	0.000
		Exercise habit	91.547	1	91.547	0.298	0.587	0.000
		Residuals	31061.422	101	307.539
	1	Exercise changed	511.483	2	255.741	1.798	0.171	0.015
		Exercise habit	102.722	1	102.722	0.722	0.391	0.000
		Residuals	14361.964	101	142.198
	2	Exercise changed	68.920	2	34.460	0.779	0.462	0.000
		Exercise habit	0.842	1	0.842	0.019	0.891	0.000
		Residuals	4468.061	101	44.238
	3	Exercise changed	1296.474	2	648.237	6.922	0.002**	0.099
		Exercise habit	375.532	1	375.532	4.010	0.048*	0.025
		Residuals	9458.312	101	93.647
Middle	Total	Exercise changed	659.516	2	329.758	2.183	0.123	0.037
		Exercise habit	591.735	1	591.735	3.917	0.053	0.046
		Residuals	8158.200	54	151.078
	1	Exercise changed	569.529	2	284.764	2.052	0.138	0.035
		Exercise habit	221.633	1	221.633	1.597	0.212	0.010
		Residuals	7494.400	54	138.785
	2	Exercise changed	181.890	2	90.945	1.921	0.156	0.031
		Exercise habit	27.741	1	27.741	0.586	0.447	0.000
		Residuals	2556.333	54	47.340
	3	Exercise changed	2.281	2	1.140	0.162	0.851	0.000
		Exercise habit	17.399	1	17.399	2.473	0.122	0.025
		Residuals	379.935	54	7.036
Older	Total	Exercise changed	551.960	2	275.980	1.066	0.356	0.004
		Exercise habit	12.496	1	12.496	0.048	0.827	0.000
		Residuals	8541.196	33	258.824
	1	Exercise changed	195.727	2	97.864	0.701	0.503	0.000
		Exercise habit	36.592	1	36.592	0.262	0.612	0.000
		Residuals	4604.283	33	139.524
	2	Exercise changed	79.490	2	39.745	0.499	0.612	0.000
		Exercise habit	5.115	1	5.115	0.064	0.802	0.000
		Residuals	2630.467	33	79.711
	3	Exercise changed	13.684	2	6.842	0.175	0.840	0.000
		Exercise habit	0.064	1	0.064	0.002	0.968	0.000
		Residuals	1292.566	33	39.169

^*p < 0.05,

^**p < 0.01. Bold values are indicate significant difference.