Improvement in Muscular Strength in HIV-Infected Individuals Receiving Antiretroviral Therapy

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...

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Main Authors: Takshita Sookan, Ayesha Motala, Michael Ormsbee, Jose Antonio, Nombulelo Magula, Umesh Lalloo, Andrew McKune
Format: Article
Language:English
Published: MDPI AG 2019-09-01
Series:Journal of Functional Morphology and Kinesiology
Subjects:
Online Access:https://www.mdpi.com/2411-5142/4/3/66
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author Takshita Sookan
Ayesha Motala
Michael Ormsbee
Jose Antonio
Nombulelo Magula
Umesh Lalloo
Andrew McKune
author_facet Takshita Sookan
Ayesha Motala
Michael Ormsbee
Jose Antonio
Nombulelo Magula
Umesh Lalloo
Andrew McKune
author_sort Takshita Sookan
collection DOAJ
description 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 (&#177;7.7) years, weight 70.8 (&#177;16) kg, body mass index (BMI) 30.9 (&#177;7.2) kg m<sup>2</sup>); whey protein /PRT (<i>n</i> = 13), placebo/PRT (<i>n</i> = 17), and a control group (<i>n</i> = 10) completed the study. A significant main effect for time occurred for the bench press (<i>p</i> = 0.02), the squat (<i>p</i> &lt; 0.0001), the deadlift (<i>p</i> = 0.001) and the shoulder press (<i>p</i> = 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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spelling doaj.art-291643ad354e47b3addd1c14d9829a142022-12-21T18:23:36ZengMDPI AGJournal of Functional Morphology and Kinesiology2411-51422019-09-014366010.3390/jfmk4030066jfmk4030066Improvement in Muscular Strength in HIV-Infected Individuals Receiving Antiretroviral TherapyTakshita Sookan0Ayesha Motala1Michael Ormsbee2Jose Antonio3Nombulelo Magula4Umesh Lalloo5Andrew McKune6Biokinetics, Exercise and Leisure Sciences, University of KwaZulu-Natal College of Health Sciences, Durban 4000, KwaZulu Natal, South AfricaDepartment of Diabetes and Endocrinology, University of KwaZulu-Natal College of Health Sciences, Durban 4013, KwaZulu Natal, South AfricaBiokinetics, Exercise and Leisure Sciences, University of KwaZulu-Natal College of Health Sciences, Durban 4000, KwaZulu Natal, South AfricaExercise and Sport Science, Nova Southeastern University, Davie FL 33328, USADepartment of Internal Medicine Durban, University of KwaZulu-Natal College of Health Sciences, Durban 4013, KwaZulu Natal, South AfricaDepartment of Pulmonology Durban, University of KwaZulu-Natal College of Health Sciences, Durban 4013, KwaZulu Natal, South AfricaBiokinetics, Exercise and Leisure Sciences, University of KwaZulu-Natal College of Health Sciences, Durban 4000, KwaZulu Natal, South AfricaPurpose: 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 (&#177;7.7) years, weight 70.8 (&#177;16) kg, body mass index (BMI) 30.9 (&#177;7.2) kg m<sup>2</sup>); whey protein /PRT (<i>n</i> = 13), placebo/PRT (<i>n</i> = 17), and a control group (<i>n</i> = 10) completed the study. A significant main effect for time occurred for the bench press (<i>p</i> = 0.02), the squat (<i>p</i> &lt; 0.0001), the deadlift (<i>p</i> = 0.001) and the shoulder press (<i>p</i> = 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.https://www.mdpi.com/2411-5142/4/3/66resistance trainingwheyplacebodetrainingHIVexerciseART
spellingShingle Takshita Sookan
Ayesha Motala
Michael Ormsbee
Jose Antonio
Nombulelo Magula
Umesh Lalloo
Andrew McKune
Improvement in Muscular Strength in HIV-Infected Individuals Receiving Antiretroviral Therapy
Journal of Functional Morphology and Kinesiology
resistance training
whey
placebo
detraining
HIV
exercise
ART
title Improvement in Muscular Strength in HIV-Infected Individuals Receiving Antiretroviral Therapy
title_full Improvement in Muscular Strength in HIV-Infected Individuals Receiving Antiretroviral Therapy
title_fullStr Improvement in Muscular Strength in HIV-Infected Individuals Receiving Antiretroviral Therapy
title_full_unstemmed Improvement in Muscular Strength in HIV-Infected Individuals Receiving Antiretroviral Therapy
title_short Improvement in Muscular Strength in HIV-Infected Individuals Receiving Antiretroviral Therapy
title_sort improvement in muscular strength in hiv infected individuals receiving antiretroviral therapy
topic resistance training
whey
placebo
detraining
HIV
exercise
ART
url https://www.mdpi.com/2411-5142/4/3/66
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