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Adaptations to Concurrent Training in Combination with High Protein Availability: A Comparative Trial in Healthy, Recreationally Active Men
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 recreational...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Springer International Publishing
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6244626/ https://www.ncbi.nlm.nih.gov/pubmed/30341593 http://dx.doi.org/10.1007/s40279-018-0999-9 |
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author | Shamim, Baubak Devlin, Brooke L. Timmins, Ryan G. Tofari, Paul Lee Dow, Connor Coffey, Vernon G. Hawley, John A. Camera, Donny M. |
author_facet | Shamim, Baubak Devlin, Brooke L. Timmins, Ryan G. Tofari, Paul Lee Dow, Connor Coffey, Vernon G. Hawley, John A. Camera, Donny M. |
author_sort | Shamim, Baubak |
collection | PubMed |
description | 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 VO(2peak) 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). ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40279-018-0999-9) contains supplementary material, which is available to authorized users. |
format | Online Article Text |
id | pubmed-6244626 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | Springer International Publishing |
record_format | MEDLINE/PubMed |
spelling | pubmed-62446262018-12-04 Adaptations to Concurrent Training in Combination with High Protein Availability: A Comparative Trial in Healthy, Recreationally Active Men Shamim, Baubak Devlin, Brooke L. Timmins, Ryan G. Tofari, Paul Lee Dow, Connor Coffey, Vernon G. Hawley, John A. Camera, Donny M. Sports Med Original Research Article 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 VO(2peak) 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). ELECTRONIC SUPPLEMENTARY MATERIAL: The online version of this article (10.1007/s40279-018-0999-9) contains supplementary material, which is available to authorized users. Springer International Publishing 2018-10-19 2018 /pmc/articles/PMC6244626/ /pubmed/30341593 http://dx.doi.org/10.1007/s40279-018-0999-9 Text en © The Author(s) 2018 Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. |
spellingShingle | Original Research Article Shamim, Baubak Devlin, Brooke L. Timmins, Ryan G. Tofari, Paul Lee Dow, Connor Coffey, Vernon G. Hawley, John A. Camera, Donny M. Adaptations to Concurrent Training in Combination with High Protein Availability: A Comparative Trial in Healthy, Recreationally Active Men |
title | Adaptations to Concurrent Training in Combination with High Protein Availability: A Comparative Trial in Healthy, Recreationally Active Men |
title_full | Adaptations to Concurrent Training in Combination with High Protein Availability: A Comparative Trial in Healthy, Recreationally Active Men |
title_fullStr | Adaptations to Concurrent Training in Combination with High Protein Availability: A Comparative Trial in Healthy, Recreationally Active Men |
title_full_unstemmed | Adaptations to Concurrent Training in Combination with High Protein Availability: A Comparative Trial in Healthy, Recreationally Active Men |
title_short | Adaptations to Concurrent Training in Combination with High Protein Availability: A Comparative Trial in Healthy, Recreationally Active Men |
title_sort | adaptations to concurrent training in combination with high protein availability: a comparative trial in healthy, recreationally active men |
topic | Original Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6244626/ https://www.ncbi.nlm.nih.gov/pubmed/30341593 http://dx.doi.org/10.1007/s40279-018-0999-9 |
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