Table 4.

Plasma ²H and myofibrillar protein-bound [²H]-alanine enrichments over the acute testing periods pre and posttraining

	PLA		PPB
	0 h	48 h	0 h	48 h
Pretraining
Plasma 2H enrichment (APE)	0.710 ± 0.031	0.726 ± 0.028	0.675 ± 0.019	0.680 ± 0.026
U leg [2H]-alanine enrichment (MPE)	0.151 ± 0.024	0.231 ± 0.027 ***	0.112 ± 0.010	0.204 ± 0.016 ***
T leg [2H]-alanine enrichment (MPE)	0.183 ± 0.025 ##	0.259 ± 0.024 *** ##	0.123 ± 0.011 ##	0.233 ± 0.016 *** ##
Posttraining
Plasma (APE)	0.695 ± 0.039	0.663 ± 0.027	0.640 ± 0.016	0.638 ± 0.022
U leg [2H]-alanine enrichment (MPE)	0.469 ± 0.068	0.571 ± 0.067 ***	0.386 ± 0.024	0.474 ± 0.029 ***
T leg [2H]-alanine enrichment (MPE)	0.433 ± 0.050 #	0.567 ± 0.059 ***	0.357 ± 0.026 #	0.502 ± 0.036 ***

Values represent means ± SE. A two- and three-way mixed model ANOVA was used to investigate changes in plasma ²H and myofibrillar protein-bound [²H]-alanine enrichment, respectively. ***P < 0.001 significant increase from 0 h. ##P < 0.01, #P < 0.05 significant difference to U leg. APE, atom percent excess (%); MPE, mole percent excess (%); PLA, maltodextrin placebo group; PPB, postexercise and prebed protein-polyphenol group; T, trained leg; U, untrained leg.