Effects of Vegan and Omnivore Diet on Post-Downhill Running Economy and Muscle Function.
| Autor: | Vasenina E; Physiology of Work and Exercise Response (POWER) Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, Florida, USA., Sterner DA; Physiology of Work and Exercise Response (POWER) Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, Florida, USA., Mangum LC; REhabilitation, Athletic Assessment, & DYnamic Imaging (READY) Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, Florida, USA., Stout JR; Physiology of Work and Exercise Response (POWER) Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, Florida, USA., Fukuda DH; Physiology of Work and Exercise Response (POWER) Laboratory, Institute of Exercise Physiology and Rehabilitation Science, University of Central Florida, Orlando, Florida, USA. |
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| Jazyk: | angličtina |
| Zdroj: | Journal of the American Nutrition Association [J Am Nutr Assoc] 2024 Nov 01, pp. 1-10. Date of Electronic Publication: 2024 Nov 01. |
| DOI: | 10.1080/27697061.2024.2421535 |
| Abstrakt: | Objectives: The objective of this study was to examine the difference between the extent of muscle damaging exercise on muscle function variables of vegans and omnivores. Methods: Twenty recreationally trained participants completed the study. Participants were assigned to either vegan ( n = 10) or omnivore ( n = 10) groups. Subjects completed a consent visit followed by 2 visits consisting of running exercise sessions and test familiarization. They returned to the laboratory for visit 4 3-5 days after visit 3 to complete the testing battery. Following the testing, the participants performed a downhill run on the treadmill at -15% grade and approximately 70% of their speed at VO2peak and repeated the testing battery upon completion. Participants were asked to track their food intake. Visits 5, 6, and 7 took place 24, 48, and 72 h following the downhill running protocol, respectively, and consisted of the same testing battery used during visit 4. The detection of differences was performed using two-way (group x time) mixed factorial ANOVA with repeated measures. Results: No group x time interactions were noted for running economy or any of the dependent variables. Main effects of time were found for muscle thickness ( p <.001) with small effect sizes (d=-0.194 to d=-0.265), pain pressure threshold ( p =.002) with medium effect sizes ( d =.460 to d =.461), NPRS scale ( p <.001) with large effect sizes (d = -0.776 to d=-1.520), and jump height ( p <.002) with small to medium effect sizes ( d =.304 to d =.438). Nutritional analysis compared the two groups revealed no difference ( p >.05) between relative intake of macronutrients and that both exceeded typical recommendations for protein (vegan group - 1.4 g/kg, omnivore group - 1.6 g/kg). Conclusion: The lack of differences in recovery between the groups suggests that nutritional adequacy may play a role in recovery. Recovery from downhill running might be influenced by several factors beyond diet, such as exercise protocol intensity, individual fitness levels, and age. |
| Databáze: | MEDLINE |
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