Table 1. Comparison of surface area in the LOS between before and after SFE (Unit: mm²).

	Before SFE	After SFE
Left*	2,408.1±989.8	3,259.1±861.1
Right*	2,221.9±845.8	2,977.6±1,074.4
Forward*	2,970.2±1,382.5	4,085.6±1,517.3
Back*	1,659.9±600.7	2,151.2±758.4
Total*	4,629.9±1,794.3	6,236.8±1,838.3

*p<0.05; mean ± SD, SFE: short-foot exercise^, LOS: limit of stability