Table 2.

Evaluation results of maximum isometric muscle strength of subjects in each movement direction of lumbodorsal muscles.

Groups	Comparison period	Forward bends (nm)	Stretch back (nm)	Left lateral flexion (nm)	Right lateral flexion (nm)	Left-handed (nm)	Right-handed (nm)
Control group	Before the intervention	115.4 ± 32.6	172.2 ± 76.3	103.2 ± 70.3	100.6 ± 50.3	62.3 ± 42.1	63.1 ± 42.5
	Intervention for 5 weeks	133.4 ± 28.2	198.6 ± 40.1	121.8 ± 43.8	115.7 ± 21.9	76.3 ± 24.6	76.9 ± 21.5
Experimental group	Before the intervention	118.6 ± 35.7	169.7 ± 63.8	112.8 ± 67.3	109.7 ± 63.7	60.8 ± 41.9	61.1 ± 39.7
	Intervention for 5 weeks	164.8 ± 20.7	213.8 ± 27.9	134.7 ± 26.8	131.7 ± 19.8	83.6 ± 19.7	85.9 ± 18.7