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. 2014 Jan 8;25(12):1575–1578. doi: 10.1589/jpts.25.1575

Table 4. Erector spinae muscle activity over time in each therapy group (Unit: %RMS).

	Before	2 weeks¹	4 weeks³	6 weeks³
Group ^b	97.9±8.0 ^a	96.8±9.6	96.2±8.7	95.1±10.5
Group ^c	99.3±7.3	110.5±9.5^†**	120.4±10.0^†††***	129.6±12.1^†††***
Group ^d	98.6±12.2	104.5±12.9***	111.6±13.0^††***	118.3±13.4^†††***