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Showing 1–24 of 34 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Muscle Contraction Clear all
Completed No phase listed Observational

Muscle Contraction in Patients With Focal Hand Dystonia

NCT00376753
View directory record Official record
Conditions
Focal Hand Dystonia
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
84 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Sep 5, 2026, 5:25 PM EDT
Terminated Not applicable Interventional

Effect of Exercise and Biofeedback on Symptoms of Incontinence in Women With Stress Urinary Incontinence

NCT01337193
View directory record Official record
Conditions
Stress Urinary Incontinence
Interventions
Pelvic floor exercises with biofeedback, Pelvic floor muscle exercises
Other
Lead sponsor
Texas Woman's University
Other
Eligibility
20 Years and older · Female only
Enrollment
28 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2014
U.S. locations
1
States / cities
Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Nov 13, 2014 · Synced Sep 5, 2026, 5:25 PM EDT
Completed No phase listed Observational

Investigation of Heart Function in Patients With Heart Valve Defects

NCT00001314
View directory record Official record
Conditions
Aortic Valve Insufficiency, Mitral Valve Insufficiency
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1992 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 5, 2026, 5:25 PM EDT
Withdrawn Not applicable Interventional Accepts healthy volunteers

Effects of Eccentric Potentiation Activation on Muscle Function

NCT05606276
View directory record Official record
Conditions
Post Activation Potentiation
Interventions
Eccentric Exercise, Cycle ergometer
Other
Lead sponsor
Brennan Thompson
Other
Eligibility
18 Years to 30 Years
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2024
U.S. locations
1
States / cities
Logan, Utah
Source: ClinicalTrials.gov public record
Updated Apr 22, 2024 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A System for Lengthening Contraction Training of Muscle

NCT00575107
View directory record Official record
Conditions
Healthy
Interventions
Exercise
Other
Lead sponsor
University of Michigan
Other
Eligibility
65 Years to 80 Years
Enrollment
36 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2009
U.S. locations
1
States / cities
Ann Arbor, Michigan
Source: ClinicalTrials.gov public record
Updated Aug 3, 2011 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Not applicable Interventional

Reduced Contractile Reserve: a Therapeutic Target in Heart Failure With Preserved Ejection Fraction(HFpEF)

NCT01354613
View directory record Official record
Conditions
Heart Failure With Preserved Ejection Fraction, Pulmonary Disease, Left Ventricular Hypertrophy/Hypertension
Interventions
Dobutamine, Amlodipine
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Apr 10, 2019 · Synced Sep 5, 2026, 5:25 PM EDT
Terminated No phase listed Observational

Examining Developmental Changes in Heart Contractions of Children With Congenital Heart Defects

NCT00860327
View directory record Official record
Conditions
Hypoplastic Left Heart Syndrome, Tetralogy of Fallot
Interventions
Not listed
Lead sponsor
Emory University
Other
Eligibility
1 Day to 1 Year
Enrollment
375 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2016
U.S. locations
1
States / cities
Atlanta, Georgia
Source: ClinicalTrials.gov public record
Updated Aug 21, 2016 · Synced Sep 5, 2026, 5:25 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Pain Inhibition With Neuromuscular Electrical Stimulation

NCT05280522
View directory record Official record
Conditions
Healthy Participants
Interventions
Volitional Contractions (VOL), Neuromuscular Electrical Stimulation (NMES), Noxious Electrical Stimulation (NXES)
Other · Device
Lead sponsor
University of New England
Other
Eligibility
18 Years to 30 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2019
U.S. locations
1
States / cities
Portland, Maine
Source: ClinicalTrials.gov public record
Updated Mar 14, 2022 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Spinal Manipulation on Central Nervous System Activity Measured by Reflexive Calf Muscle Recruitment

NCT02848456
View directory record Official record
Conditions
Subluxation of Joint of Lumbar Spine
Interventions
Spinal Manipulation, Max Voluntary Isometric Contraction, SM+MVIC
Procedure
Lead sponsor
Grant Sanders
Other
Eligibility
20 Years to 35 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 18, 2017 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Safety and Efficacy of the MyokinE100 (CL-EMS Alpha) Device in Inducing Visible Muscle Contraction in Healthy Volunteers

NCT06023511
View directory record Official record
Conditions
ICU Acquired Weakness
Interventions
Electrical muscle stimulation
Device
Lead sponsor
Health Discovery Labs
Industry
Eligibility
18 Years to 65 Years
Enrollment
8 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Sep 25, 2023 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Not applicable Interventional

Evaluating the Impact of Focused Muscle Contraction Therapy in Retire APF Players

NCT04822311
View directory record Official record
Conditions
Chronic Pain Due to Injury, Acute Pain, Depression, Brain Injuries
Interventions
Experimental: Investigate the effects of an exercise intervention on retired APF players
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
18 Years and older · Male only
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2023
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 8, 2023 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Manipulation Effects on Abdominal Muscles

NCT01745939
View directory record Official record
Conditions
Low Back Pain
Interventions
Lumbar Manipulation, Sham manipulation
Other
Lead sponsor
University of Nevada, Las Vegas
Other
Eligibility
18 Years to 70 Years
Enrollment
12 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Nov 4, 2014 · Synced Sep 5, 2026, 5:25 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Analysis of Heart Muscle Function Following Exercise in Patients With Heart Disease

NCT00001528
View directory record Official record
Conditions
Healthy
Interventions
Not listed
Lead sponsor
National Heart, Lung, and Blood Institute (NHLBI)
NIH
Eligibility
Not listed
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1996 – 2001
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Effect of Cueing on Gluteus Maximus Recruitment

NCT02645188
View directory record Official record
Conditions
Muscle Contraction
Interventions
Cueing
Other
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 40 Years · Female only
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2016
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Mar 13, 2016 · Synced Sep 5, 2026, 5:25 PM EDT
Completed No phase listed Observational

Screening and Natural History: Primary Lateral Sclerosis and Related Disorders

NCT00015444
View directory record Official record
Conditions
Primary Lateral Sclerosis
Interventions
Not listed
Lead sponsor
National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Eligibility
18 Years and older
Enrollment
189 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 15, 2019 · Synced Sep 5, 2026, 5:25 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Acute Cryotherapy on Musculoskeletal Function and Biomarkers

NCT07211412
View directory record Official record
Conditions
Exercise Induced Muscle Damage, Cryotherapy
Interventions
Cryotherapy, Eccentric exercise-induced muscle damage
Other
Lead sponsor
University of Texas, El Paso
Other
Eligibility
18 Years to 30 Years
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2026
U.S. locations
1
States / cities
El Paso, Texas
Source: ClinicalTrials.gov public record
Updated Oct 7, 2025 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Mental Effort and Muscle Strength

NCT00059436
View directory record Official record
Conditions
Aging, Muscle Strength
Interventions
Mental effort in muscle strengthening
Behavioral
Lead sponsor
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
NIH
Eligibility
65 Years and older
Healthy volunteers
Accepts healthy volunteers
Timeline
Started 1999
U.S. locations
1
States / cities
Cleveland, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 25, 2016 · Synced Sep 5, 2026, 5:25 PM EDT
Recruiting Early Phase 1 Interventional

Impact of rTMS on Abnormal Cortical fMRI in Patients With Dystonia

NCT07626216
View directory record Official record
Conditions
Dystonia Disorder
Interventions
Transcranial Magnetic Stimulation
Device
Lead sponsor
Northwell Health
Other
Eligibility
18 Years to 80 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Manhasset, New York
Source: ClinicalTrials.gov public record
Updated Jun 3, 2026 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Treatment of Forehead/Glabellar Rhytide Complex With Botulinum Toxin A Injection

NCT01688076
View directory record Official record
Conditions
Forehead Rhytid Complex, Glabellar Rhytid Complex
Interventions
Botulinum Toxin A
Procedure
Lead sponsor
Northwestern University
Other
Eligibility
18 Years to 65 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2022
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 30, 2026 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Role of MicroRNAs on Age and Contraction-induced Skeletal Muscle Growth

NCT02638454
View directory record Official record
Conditions
Sarcopenia
Interventions
Acute Resistance Exercise
Procedure
Lead sponsor
Tufts University
Other
Eligibility
20 Years to 85 Years
Enrollment
30 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 19, 2025 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

NM Balance Regulation With ULLS and Loss of Sleep

NCT05956964
View directory record Official record
Conditions
Muscle Weakness, Quadriceps Muscle Atrophy, Sleep Disturbance
Interventions
Sleep Restriction, Sleep Adequate
Behavioral
Lead sponsor
Lance Bollinger
Other
Eligibility
18 Years to 50 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2025
U.S. locations
1
States / cities
Lexington, Kentucky
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Sep 5, 2026, 5:25 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Inorganic Nitrate: Sex Differences in Muscle Contractile Function and Efficiency

NCT04588740
View directory record Official record
Conditions
Healthy
Interventions
concentrated beet root juice, Placebo beet root juice
Drug
Lead sponsor
University of Virginia
Other
Eligibility
18 Years to 34 Years
Enrollment
35 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2023
U.S. locations
1
States / cities
Charlottesville, Virginia
Source: ClinicalTrials.gov public record
Updated May 7, 2024 · Synced Sep 5, 2026, 5:25 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Developing a Physiological Understanding of High Duration Activity

NCT05135234
View directory record Official record
Conditions
Sedentary Lifestyle, Hyperinsulinemia, Glucose Tolerance Impaired, Low-density-lipoprotein-type, Aging Problems, Lipid Metabolism Disorders, Inactivity, Physical, Metabolic Disorder, Glucose
Interventions
Muscular Exercise
Behavioral
Lead sponsor
University of Houston
Other
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2025
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 18, 2023 · Synced Sep 5, 2026, 5:25 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

C-Protein in Fatigue and Aging

NCT05926219
View directory record Official record
Conditions
Aging, Muscle Atrophy or Weakness, Sarcopenia in Elderly, Sarcopenia
Interventions
Fatiguing Exercise
Behavioral
Lead sponsor
University of Oregon
Other
Eligibility
18 Years to 80 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2027
U.S. locations
1
States / cities
Eugene, Oregon
Source: ClinicalTrials.gov public record
Updated May 6, 2025 · Synced Sep 5, 2026, 5:25 PM EDT