TY  - JOUR
AU  - Tang, Jason E.
A2  - Tang, Jason E.
A2  - Manolakos, Joshua J.
A2  - Kujbida, Greg W.
A2  - Lysecki, Paul J.
A2  - Moore, Daniel R.
A2  - Phillips, Stuart M.
DB  - BISp
DP  - BISp
KW  - Ernährung
KW  - Kohlenhydratzufuhr
KW  - Krafttraining
KW  - Mann
KW  - Muskelhypertrophie
KW  - Muskelmasse
KW  - Proteinsynthese
KW  - Proteinzufuhr
KW  - Skelettmuskulatur
KW  - Sportmedizin
KW  - Trainierter
LA  - eng
TI  - Minimal whey protein with carbohydrate stimulates muscle protein synthesis following resistance exercise in trained young men
TT  - Eine minimale Gabe von Molkeprotein mit Kohlenhydraten stimuliert die Muskelproteinsynthese im Anschluss an Krafttraining bei jungen trainierten Männern
PY  - 2007
N2  - Whey protein is a supplemental protein source often used by athletes, particularly those aiming to gain muscle mass; however, direct evidence for its efficacy in stimulating muscle protein synthesis (MPS) is lacking. We aimed to determine the impact of consuming whey protein on skeletal muscle protein turnover in the post-exercise period. Eight healthy resistance-trained young men (age = 21 ± 1 .0 years; BMI = 26.8 ± 0.9 kg/m2 (means ± SE)) participated in a double-blind randomized crossover trial in which they performed a unilateral leg resistance exercise workout (EX: 4 sets of knee extensions and 4 sets of leg press; 8–10 repetitions/set; 80% of maximal), such that one leg was not exercised and acted as a rested (RE) comparator. After exercise, subjects consumed either an isoenergetic whey protein plus carbohydrate beverage (WHEY: 10 g protein and 21 g fructose) or a carbohydrate-only beverage (CHO: 21 g fructose and 10 g maltodextran). Subjects received pulse-tracer injections of l-[ring-2H5]phenylalanine and l-[15N]phenylalanine to measure MPS. Exercise stimulated a rise in MPS in the WHEY-EX and CHO-EX legs, which were greater than MPS in the WHEY-RE leg and the CHO-RE leg (all p < 0.05), respectively. The rate of MPS in the WHEY-EX leg was greater than in the CHO-EX leg (p < 0.001). We conclude that a small dose (10 g) of whey protein with carbohydrate (21 g) can stimulate a rise in MPS after resistance exercise in trained young men that would be supportive of a positive net protein balance, which, over time, would lead to hypertrophy.
L2  - https://dx.doi.org/10.1139/H07-076
DO  - 10.1139/H07-076
SP  - S. 1132-1138
SN  - 1715-5312
JO  - Applied physiology, nutrition, and metabolism
IS  - 6
VL  - 32
M3  - Elektronische Ressource (online)
M3  - Gedruckte Ressource
ID  - PU201802000942
ER  -