Adaptations to concurrent training in combination with high protein availability: A comparative trial in healthy, recreationally active men
Journal article
Shamim, Baubak, Devlin, Brooke L., Timmins, Ryan G., Tofari, Paul, Dow, Connor Lee, Coffey, Vernon G., Hawley, John A. and Camera, Donny M.. (2018). Adaptations to concurrent training in combination with high protein availability: A comparative trial in healthy, recreationally active men. Sports Medicine. 48(12), pp. 2869 - 2883. https://doi.org/10.1007/s40279-018-0999-9
Authors | Shamim, Baubak, Devlin, Brooke L., Timmins, Ryan G., Tofari, Paul, Dow, Connor Lee, Coffey, Vernon G., Hawley, John A. and Camera, Donny M. |
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Abstract | 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. Trials Registry: This trial was registered with the Australian-New Zealand Clinical Trials Registry (ACTRN12617001229369). |
Year | 2018 |
Journal | Sports Medicine |
Journal citation | 48 (12), pp. 2869 - 2883 |
Publisher | Adis International Ltd. |
ISSN | 0112-1642 |
Digital Object Identifier (DOI) | https://doi.org/10.1007/s40279-018-0999-9 |
Scopus EID | 2-s2.0-85055719239 |
Page range | 2869 - 2883 |
Research Group | Mary MacKillop Institute for Health Research |
Publisher's version | File Access Level Controlled |
Place of publication | New Zealand |
https://acuresearchbank.acu.edu.au/item/85qw8/adaptations-to-concurrent-training-in-combination-with-high-protein-availability-a-comparative-trial-in-healthy-recreationally-active-men
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