Adaptations to concurrent training in combination with high protein availability : a comparative trial in healthy, recreationally active men
Deutscher übersetzter Titel: | Anpassungen an kombiniertes Kraft-/Ausdauertraining in Kombination mit hoher Proteinzufuhr : eine vergleichende Untersuchung mit gesunden männlichen Freizeitsportlern |
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Autor: | Shamim, Baubak; Devlin, Brooke L.; Timmins, Ryan G.; Tofari, Paul; Lee Dow, Connor; Coffey, Vernon G.; Hawley, John A.; Camera, Donny M. |
Erschienen in: | Sports medicine |
Veröffentlicht: | 48 (2018), 12, S. 2869-2883, Lit. |
Format: | Literatur (SPOLIT) |
Publikationstyp: | Zeitschriftenartikel |
Medienart: | Elektronische Ressource (online) Gedruckte Ressource |
Sprache: | Englisch |
ISSN: | 0112-1642, 1179-2035 |
DOI: | 10.1007/s40279-018-0999-9 |
Schlagworte: | |
Online Zugang: | |
Erfassungsnummer: | PU201901000579 |
Quelle: | BISp |
Abstract des Autors
Background: We implemented a high-protein diet (2 g·kg−1·d−1) throughout 12 weeks of concurrent exercise training to determine whether interferences to adaptation in muscle hypertrophy, strength and power could be attenuated compared to resistance training alone. Methods: Thirty-two recreationally active males (age: 25 ± 5 years, body mass index: 24 ± 3 kg·m−2; mean ± SD) performed 12 weeks of either isolated resistance (RES; n = 10) or endurance (END; n = 10) training (three sessions·w−1), or concurrent resistance and endurance (CET; n = 12) training (six sessions·w−1). Maximal strength (1RM), body composition and power were assessed pre- and post-intervention. Results: Leg press 1RM increased ~ 24 ± 13% and ~ 33 ± 16% in CET and RES from PRE-to-POST (P < 0.001), with no difference between groups. Total lean mass increased ~ 4% in both CET and RES from PRE-to-POST (P < 0.001). Ultrasound estimated vastus lateralis volume increased ~ 15% in CET and ~ 11% in RES from PRE-to-POST (P < 0.001), with no difference between groups. Wingate peak power relative to body mass displayed a trend (P = 0.053) to be greater in RES (12.5 ± 1.6 W·kg BM−1) than both CET (10.8 ± 1.7 W·kg BM−1) and END (10.9 ± 1.8 W·kg BM−1) at POST. Absolute VO2peak increased 6.9% in CET and 12% in END from PRE-to-POST (P < 0.05), with no difference between groups. Conclusion: Despite high protein availability, select measures of anaerobic power-based adaptations, but not muscle strength or hypertrophy, appear susceptible to ‘interference effects’ with CET and should be closely monitored throughout training macro-cycles.