AI Article Synopsis
- The study explored how a progressive resistance training (PRT) program and whey protein affect muscle strength in HIV-infected individuals on antiretroviral therapy.
- Participants engaged in PRT twice weekly for 12 weeks and were given either whey protein or a placebo, with a follow-up phase to assess strength changes post-training.
- Results showed that PRT significantly improved maximal strength across various exercises, and after a 12-week period without training, there was only slight strength loss, highlighting the program's effectiveness for this group.
Article Abstract
Purpose: This study investigated (1) the effect of a progressive resistance training (PRT) program and whey protein intake on maximal muscle strength in human immunodeficiency virus (HIV)-infected individuals receiving antiretroviral therapy (ART) and (2) alterations in maximal strength 12 wks after the cessation of PRT with continued supplementation.
Methods: Sixty HIV-infected individuals were recruited. Whole body PRT was performed twice weekly for 12 wks. Participants received, in a double-blind placebo controlled manner, either 20 g whey or placebo (maltodextrin) before and immediately after each session. Both PRT groups continued to take either whey protein or placebo for a further 12 wks following the exercise intervention to examine the effects of detraining.
Results: Forty participants (mean and standard deviation (SD) age 40.8 (±7.7) years, weight 70.8 (±16) kg, body mass index (BMI) 30.9 (±7.2) kg m); whey protein /PRT ( = 13), placebo/PRT ( = 17), and a control group ( = 10) completed the study. A significant main effect for time occurred for the bench press ( = 0.02), the squat ( < 0.0001), the deadlift ( = 0.001) and the shoulder press ( = 0.02) one-repetition maximum (1RM) in the intervention groups.
Conclusion: The PRT program increased maximal strength regardless of whey protein intake. The detraining period demonstrated minimal strength loss, which is beneficial to this population.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7739231 | PMC |
| http://dx.doi.org/10.3390/jfmk4030066 | DOI Listing |
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