Table 5. T2 values of paraspinal muscles in the resting state and in different recovery sessions after exercise (ms).

Spinal level	Session	Iliocostalis	Longissimus	Multifidus
L3	Resting state	95.34±9.65	108.92±20.60	140.31±76.76
	Recovery I	105.24±9.89	122.09±20.26*	149.86±47.56
	Recovery II	103.99±14.32	119.08±22.39*	162.95±85.76*
	Recovery III	96.71±8.60	112.84±25.78	148.16±81.25
	Recovery IV	98.39±9.32	115.50±23.68*	150.51±56.89*
	F	6.975	2.877	1.049
	P value	<0.001	0.025	0.384
L4	Resting state	94.62±12.36	101.73±11.02	110.85±31.13
	Recovery I	103.95±10.57*	114.20±10.16*	124.42±18.28*
	Recovery II	107.76±23.62*	126.38±50.02*	145.02±87.82
	Recovery III	97.23±6.73	108.10±15.11	126.06±46.94*
	Recovery IV	98.63±14.09*	111.92±26.62*	132.47±57.38*
	F	5.214	5.007	2.535
	P value	0.001	0.001	0.042

All values are mean ± standard deviation. *Compared with resting state, P<0.05.