Table 1.

Motor reaction time and movement time in the taekwondo-specific reaction test battery after each simulated matches in the AA and PL trials

	Movementa	Trialb	Baseline (s)	post-M1 (s)	post-M2 (s)	post-M3 (s)
Motor reaction time	A	AA	0.295 ± 0.057	0.267 ± 0.055	0.270 ± 0.050	0.266 ± 0.033
		PL	0.285 ± 0.040	0.265 ± 0.044	0.258 ± 0.048	0.270 ± 0.041
	B	AA	0.313 ± 0.079	0.307 ± 0.069	0.269 ± 0.044	0.299 ± 0.064
		PL	0.314 ± 0.043	0.305 ± 0.054	0.292 ± 0.070	0.303 ± 0.056
	C	AA	0.342 ± 0.066	0.303 ± 0.067	0.287 ± 0.043	0.307 ± 0.038
		PL	0.314 ± 0.055	0.305 ± 0.051	0.304 ± 0.051	0.303 ± 0.055
	D	AA	0.356 ± 0.071	0.304 ± 0.067	0.277 ± 0.047	0.300 ± 0.049
		PL	0.319 ± 0.039	0.307 ± 0.043	0.300 ± 0.071	0.301 ± 0.052
Movement time	A	AA	0.269 ± 0.043	0.250 ± 0.033	0.246 ± 0.030	0.258 ± 0.042
		PL	0.263 ± 0.033	0.260 ± 0.042	0.273 ± 0.039	0.262 ± 0.040
	B	AA	0.278 ± 0.041	0.266 ± 0.035	0.262 ± 0.032	0.263 ± 0.030
		PL	0.279 ± 0.033	0.294 ± 0.071	0.275 ± 0.033	0.272 ± 0.032
	C	AA	0.270 ± 0.050	0.269 ± 0.037	0.264 ± 0.028	0.243 ± 0.066
		PL	0.282 ± 0.036	0.277 ± 0.044	0.276 ± 0.032	0.281 ± 0.035
	D	AA	0.272 ± 0.038	0.272 ± 0.030	0.260 ± 0.032	0.269 ± 0.032
		PL	0.267 ± 0.069	0.274 ± 0.051	0.280 ± 0.034	0.278 ± 0.041

^aMovement A: a roundhouse kick to the rib; Movement B: a roundhouse kick to the rib, a roundhouse kick to the head, then a reverse roundhouse kick to the head; Movement C: a roundhouse kick to the rib, a roundhouse kick to the head, a reverse roundhouse kick to the head, a roundhouse kick to the head, a reverse roundhouse kick to the head, then a roundhouse kick to the head; Movement D: the primary task in a dual-task setting, same as Movement C. ^b AA BCAA, arginine, and citruline, PL placebo