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Showing 1–24 of 72 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Muscle Composition Clear all
Completed Not applicable Interventional Accepts healthy volunteers

Lean Body Mass Response to Higher-protein Diets During Winter Military Training

NCT02327208
View directory record Official record
Conditions
Body Weight
Interventions
Control, Protein, Carbohydrate
Dietary Supplement
Lead sponsor
United States Army Research Institute of Environmental Medicine
Federal
Eligibility
18 Years and older
Enrollment
73 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Natick, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 20, 2017 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Impact of Beef on Muscle Fatigue in Older Adults

NCT05860088
View directory record Official record
Conditions
Muscle Weakness, Muscle; Fatigue, Heart, Older Adults
Interventions
Beef Diet, Vegetarian Diet
Other
Lead sponsor
Indiana University
Other
Eligibility
60 Years to 85 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Bloomington, Indiana
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 5, 2026, 11:14 PM EDT
Active, not recruiting No phase listed Observational Accepts healthy volunteers

GLP-1RA Effects on Lean Mass and Bone Health in Midlife Women

NCT07422987
View directory record Official record
Conditions
Body Composition, Muscle Function, GLP-1, Estrogen Level
Interventions
Not listed
Lead sponsor
University of Kansas Medical Center
Other
Eligibility
35 Years to 60 Years · Female only
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Kansas City, Kansas
Source: ClinicalTrials.gov public record
Updated Aug 6, 2026 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Omega-3 Fatty Acid Supplementation to Enhance Performance

NCT05924139
View directory record Official record
Conditions
Strength, Body Composition, Muscle Soreness
Interventions
Omega-3 fatty acid, Placebo
Dietary Supplement
Lead sponsor
Baylor University
Other
Eligibility
18 Years to 25 Years
Enrollment
33 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Waco, Texas
Source: ClinicalTrials.gov public record
Updated Jun 28, 2023 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Effect of an EAA/Whey Composition on Protein Metabolism

NCT03502941
View directory record Official record
Conditions
Sarcopenia
Interventions
6.3 g of EAAs mixture and whey protein isolate, 12.6 g of EAAs mixture and whey protein isolate, 12.6 g of whey protein isolate
Dietary Supplement
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 50 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Little Rock, Arkansas
Source: ClinicalTrials.gov public record
Updated Nov 1, 2021 · Synced Sep 5, 2026, 11:14 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Effects of Increased, Egg-Based Protein Intake on Muscle Composition,

NCT01396915
View directory record Official record
Conditions
Muscle Composition, Sarcopenia, Hypertrophy, Inflammation
Interventions
Dietary Protein Intake
Dietary Supplement
Lead sponsor
Purdue University
Other
Eligibility
55 Years to 80 Years
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
West Lafayette, Indiana
Source: ClinicalTrials.gov public record
Updated Feb 3, 2016 · Synced Sep 5, 2026, 11:14 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

Age-Related Changes in Body Composition

NCT01517113
View directory record Official record
Conditions
Hypertension, Atherosclerosis
Interventions
Not listed
Lead sponsor
National Institute on Aging (NIA)
NIH
Eligibility
50 Years to 90 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
2
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Apr 4, 2018 · Synced Sep 5, 2026, 11:14 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Effects of Graded Protein Intake on Body Composition in Older Adults

NCT04845282
View directory record Official record
Conditions
Sarcopenia
Interventions
Graded Protein plus Resistance Training, RDA Protein plus Resistance Training
Dietary Supplement
Lead sponsor
Wake Forest University
Other
Eligibility
55 Years to 110 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 26, 2022 · Synced Sep 5, 2026, 11:14 PM EDT
Not listed No phase listed Observational

Muscle Atrophy, Physical Performance and Glucose Tolerance Post Stroke

NCT01302197
View directory record Official record
Conditions
Stroke
Interventions
No intervention
Other
Lead sponsor
Baltimore VA Medical Center
Federal
Eligibility
21 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2026
U.S. locations
3
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 5, 2024 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Health Effects of Increasing Muscle Activation While Sitting in Office Workers

NCT02855541
View directory record Official record
Conditions
Blood Pressure
Interventions
DeskCycle
Device
Lead sponsor
University of Colorado, Boulder
Other
Eligibility
18 Years to 55 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2017
U.S. locations
1
States / cities
Boulder, Colorado
Source: ClinicalTrials.gov public record
Updated Nov 12, 2018 · Synced Sep 5, 2026, 11:14 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Strength Training Response of Muscle in GLP-1 Users

NCT07104539
View directory record Official record
Conditions
Muscle Mass
Interventions
Strength Training, Wait first, then strength training
Behavioral · Other
Lead sponsor
Virginia Polytechnic Institute and State University
Other
Eligibility
50 Years and older
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Blacksburg, Virginia
Source: ClinicalTrials.gov public record
Updated Jan 20, 2026 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Egg Consumption and Muscular Adaptations

NCT04381390
View directory record Official record
Conditions
Hypertrophy
Interventions
Whole egg and resistance training, Egg whites and resistance training
Dietary Supplement
Lead sponsor
Alexei Wong
Other
Eligibility
18 Years to 30 Years · Male only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Arlington, Virginia
Source: ClinicalTrials.gov public record
Updated May 7, 2020 · Synced Sep 5, 2026, 11:14 PM EDT
Not listed No phase listed Observational Accepts healthy volunteers

The ULTRA Study: Cross-Comparison of Ultrasound Systems

NCT02920619
View directory record Official record
Conditions
Healthy
Interventions
Ultrasound
Device
Lead sponsor
Washington D.C. Veterans Affairs Medical Center
Federal
Eligibility
20 Years to 85 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated May 16, 2018 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Chronic Study on Body Composition, Training, Performance, and Recovery

NCT04230824
View directory record Official record
Conditions
Damage Muscle, Body Weight Changes, Performance Enhancing Product Use
Interventions
Pre-workout plus and Protein recovery plus, Placebo, 6-week resistance training program
Dietary Supplement · Other
Lead sponsor
Pharmanex
Industry
Eligibility
25 Years to 50 Years
Enrollment
69 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2021 – 2022
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Jan 12, 2022 · Synced Sep 5, 2026, 11:14 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

The Metabolic and Genetic Drivers of Body Composition Changes Following Weight Loss Surgery

NCT07178704
View directory record Official record
Conditions
Bariatric Surgery Patients
Interventions
Not listed
Lead sponsor
The University of Texas Medical Branch, Galveston
Other
Eligibility
18 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2027
U.S. locations
1
States / cities
Galveston, Texas
Source: ClinicalTrials.gov public record
Updated Jul 9, 2026 · Synced Sep 5, 2026, 11:14 PM EDT
Recruiting Not applicable Interventional

The Effects of Strength Training on Muscle Mass and Mental Health in Adults Taking Obesity Medication

NCT07652333
View directory record Official record
Conditions
Muscle Composition, Obesity, Quality of Life (QOL)
Interventions
Resistance Exercise, GLP-1 RAs
Behavioral · Drug
Lead sponsor
University of Pittsburgh
Other
Eligibility
18 Years and older
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2027
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Jun 23, 2026 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Not applicable Interventional

Measuring Changes in Body Composition and Physical Function in Patients With Childhood Cancers

NCT05823740
View directory record Official record
Conditions
Cancer, Malignant Neoplasm
Interventions
Bioelectrical impedance Analysis (BIA), D3-Creatine Dilution (D3Cr), 6-Minute Walk Test (6MWT), Timed Up and Go (TUG), 30-second Sit-to-Stand (STS), Hand Grip Strength (GS), PBTL p16 expression, CT, MR and PET Imaging
Other
Lead sponsor
UNC Lineberger Comprehensive Cancer Center
Other
Eligibility
8 Years to 21 Years
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2026
U.S. locations
1
States / cities
Chapel Hill, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

The Role of 5-alpha Reductase in Mediating Testosterone Actions

NCT00493987
View directory record Official record
Conditions
Healthy
Interventions
Testosterone Enanthate, Dutasteride
Drug
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
18 Years to 50 Years · Male only
Enrollment
184 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2010
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 12, 2010 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers Results available

Optimizing Body Composition for Function in Older Adults

NCT00315146
View directory record Official record
Conditions
Obesity, Overweight With Indications for Weight Loss
Interventions
Pioglitazone, Resistance exercise training to maximize muscle power, Hypocaloric diet, Placebo
Drug · Behavioral
Lead sponsor
Wake Forest University Health Sciences
Other
Eligibility
65 Years to 79 Years
Enrollment
88 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Winston-Salem, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2018 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effects of INDUS810 on Body Composition, Muscular Performance, and Training Adaptations

NCT03850106
View directory record Official record
Conditions
Weakness, Muscle
Interventions
Placebo, Indus810
Dietary Supplement
Lead sponsor
The Center for Applied Health Sciences, LLC
Industry
Eligibility
18 Years to 45 Years · Male only
Enrollment
67 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Stow, Ohio
Source: ClinicalTrials.gov public record
Updated Feb 17, 2020 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Creatine Supplementation and Resistance Training in Premenopausal Females

NCT05745870
View directory record Official record
Conditions
Health Behavior
Interventions
Creatine Monohydrate Supplementation
Dietary Supplement
Lead sponsor
University of Idaho
Other
Eligibility
18 Years to 22 Years · Female only
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Moscow, Idaho
Source: ClinicalTrials.gov public record
Updated Sep 6, 2023 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Dietary Intervention and Varying Physical Activity in Seniors

NCT01893684
View directory record Official record
Conditions
Obesity
Interventions
Exercise, Higher Protein Diet, Conventional Carbohydrate Diet
Behavioral
Lead sponsor
University of Georgia
Other
Eligibility
65 Years to 80 Years · Female only
Enrollment
81 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2015
U.S. locations
1
States / cities
Athens, Georgia
Source: ClinicalTrials.gov public record
Updated Sep 6, 2017 · Synced Sep 5, 2026, 11:14 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Physical Activity and Cognition Study

NCT02773121
View directory record Official record
Conditions
Aging
Interventions
Physical Activity
Behavioral
Lead sponsor
Boston University
Other
Eligibility
55 Years to 85 Years
Enrollment
28 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 20, 2020 · Synced Sep 5, 2026, 11:14 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

The Effect of Sugar Sweetened and Diet Beverages Consumed as Part of a Weight-Maintenance Diet on Fat Storage

NCT02252952
View directory record Official record
Conditions
Focus: Understanding the Obesogenic Potential of Sugars and Non-caloric Sweeteners
Interventions
Beverage Consumption
Other
Lead sponsor
Rippe Lifestyle Institute
Industry
Eligibility
20 Years to 50 Years
Enrollment
99 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 2013
U.S. locations
1
States / cities
Celebration, Florida
Source: ClinicalTrials.gov public record
Updated Dec 15, 2014 · Synced Sep 5, 2026, 11:14 PM EDT