Influence of differing macronutrient intakes on muscle glycogen resynthesis after resistance exercise
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Deutscher übersetzter Titel: | Einfluss unterschiedlicher Makronaehrstoff-Einnahme auf die Muskelglykogenresynthese nach Krafttraining |
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Autor: | Roy, B.D.; Tarnopolsky, M.A. |
Erschienen in: | Journal of applied physiology |
Veröffentlicht: | 84 (1998), 3, S. 890-896, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 8750-7587, 0021-8987, 0161-7567, 1522-1601 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU199804301043 |
Quelle: | BISp |
TY - JOUR AU - Roy, B.D. A2 - Roy, B.D. A2 - Tarnopolsky, M.A. DB - BISp DP - BISp KW - Ernährung KW - Glykogenresynthese KW - Kalorienzufuhr KW - Kohlenhydratzufuhr KW - Krafttraining KW - Nahrungszusammensetzung KW - Proteinzufuhr KW - Regeneration KW - Sportmedizin LA - eng TI - Influence of differing macronutrient intakes on muscle glycogen resynthesis after resistance exercise TT - Einfluss unterschiedlicher Makronaehrstoff-Einnahme auf die Muskelglykogenresynthese nach Krafttraining PY - 1998 N2 - The provision of additional protein (Pro) to a carbohydrate (CHO) supplement resulted in an enhanced rate of muscle glycogen resynthesis after endurance exercise. A comparison of isoenergetic CHO and CHO/Pro formula drinks on muscle glycogen resynthesis has not been examined after either endurance or resistance exercise. We studied the effect of isoenergetic CHO (1 g/kg) and CHO/Pro/fat (66% CHO, 23% Pro, 11% fat) defined formula drinks and placebo (Pl) given immediately (t = 0 h) and 1 h (t = +1 h) after resistance exercise in 10 healthy young men. They performed a whole body workout (9 exercises/3 sets at 80% 1 repetition maximum) with unilateral knee extension exercise (exercise (Ex) and control (Con) leg). The CHO/Pro/fat and CHO trials resulted in significantly greater (P<0.05) plasma insulin and glucose concentration compared with Pl. Muscle glycogen was significantly lower (P<0.05) for the Ex vs. Con leg immediately postexercise for all three conditions. The rate of glycogen resynthesis was significantly greater (P<0.05) for both CHO/Pro/fat and CHO (23.0+/-4.5 and 19.3+/-6.1 mmol/kg dry muscle/h, respectively) vs. Pl (Ex = 2.8+/-2.3 and Con = 1.4+/-3.6 mmol/kg dry muscle/h). These results demonstrated that a bout of resistance exercise resulted in a significant decrease in muscle glycogen and that consumption of an isoenergetic CHO or CHO/Pro/fat formula drink resulted in similar rates of muscle glycogen resynthesis after resistance exercise. This suggests that total energy content and CHO content are important in the resynthesis of muscle glycogen. Verf.-Referat SP - S. 890-896 SN - 8750-7587 JO - Journal of applied physiology IS - 3 VL - 84 M3 - Gedruckte Ressource ID - PU199804301043 ER -