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Showing 1–24 of 107 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Physiological Responses Clear all
Completed No phase listed Observational

Physiological Response to Exercise: Sensor Evaluation at Specified Exertions

NCT01229137
View directory record Official record
Conditions
Heart Failure
Interventions
SRD-1 conversion
Device
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years and older
Enrollment
71 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
14
States / cities
Jonesboro, Arkansas • Sacremento, California • Danbury, Connecticut + 11 more
Source: ClinicalTrials.gov public record
Updated Sep 11, 2012 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effect of Proprietary Water on Physiological and Perceptual Responses

NCT05451446
View directory record Official record
Conditions
Hydration, Dehydration
Interventions
proprietary water, Active comparator, Placebo
Dietary Supplement · Other
Lead sponsor
University of South Carolina
Other
Eligibility
18 Years to 50 Years
Enrollment
47 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Columbia, South Carolina
Source: ClinicalTrials.gov public record
Updated Apr 10, 2023 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Role of Emotional Arousal in Food Preference and Taste

NCT02402088
View directory record Official record
Conditions
Obesity, Food Craving, Food Consumption
Interventions
Stress Imagery, Food Cue Imagery, Neutral-Relaxing
Behavioral
Lead sponsor
Yale University
Other
Eligibility
18 Years to 45 Years
Enrollment
160 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2013 – 2019
U.S. locations
1
States / cities
New Haven, Connecticut
Source: ClinicalTrials.gov public record
Updated Feb 10, 2022 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

A Study of Strawberries and Disease Risk

NCT01199848
View directory record Official record
Conditions
Nutritional and Metabolic Diseases, Inflammation, Physiological Responses
Interventions
Placebo, 10G, 20G, 40G, Placebonofiber
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
18 Years and older
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010 – 2015
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Feb 11, 2021 · Synced Jul 23, 2026, 6:22 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Measuring How Quickly the Eye Focuses After Sustained Viewing of Close-up Images and Videos

NCT07679048
View directory record Official record
Conditions
Distance Viewing, Prolonged Near Viewing
Interventions
Near viewing first, Distant viewing first
Other
Lead sponsor
Rochester Institute of Technology
Other
Eligibility
18 Years to 35 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
Rochester, New York
Source: ClinicalTrials.gov public record
Updated Jul 7, 2026 · Synced Jul 23, 2026, 6:22 PM EDT
Completed No phase listed Observational

Functional and Physiological Responses to Lokomat Therapy (Pilot Study)

NCT00883142
View directory record Official record
Conditions
Spinal Cord Injuries, Multiple Sclerosis, Stroke
Interventions
Not listed
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2013
U.S. locations
1
States / cities
The Bronx, New York
Source: ClinicalTrials.gov public record
Updated Jun 10, 2013 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Phase 4 Interventional Accepts healthy volunteers

Disentangling Anxiety Sensitivity and Anxiety-induced Physiological Stress Response

NCT02372110
View directory record Official record
Conditions
Anxiety
Interventions
HPA, ANS stimulation, Placebo
Drug
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years and older
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Apr 27, 2021 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Acute Effects of Organic Guayusa Extract

NCT05928195
View directory record Official record
Conditions
Acute Physiological Effects of Organic Guayusa Extract
Interventions
Acute Moderate-Dose Guayusa Extract Supplementation, Acute High-Dose Guayusa Extract Supplementation, Placebo
Dietary Supplement
Lead sponsor
Nathaniel Jenkins
Other
Eligibility
18 Years to 45 Years
Enrollment
32 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022 – 2023
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Jul 4, 2023 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Not applicable Interventional Results available

Physiologic Response to Glucagon at Varying Insulin Levels

NCT01483651
View directory record Official record
Conditions
Type 1 Diabetes Mellitus
Interventions
Glucagon, Insulin
Drug
Lead sponsor
Legacy Health System
Other
Eligibility
21 Years to 65 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Mar 28, 2016 · Synced Jul 23, 2026, 6:22 PM EDT
Not listed Not applicable Interventional

Comparison of Physiologic Response With Rate Adaptive Pacing Driven by Minute Ventilation and Accelerometer

NCT02003378
View directory record Official record
Conditions
Chronotropic Incompetence
Interventions
Pacemaker sensor set to MV, Pacemaker sensor set to XL
Device
Lead sponsor
Albany Medical College
Other
Eligibility
18 Years and older
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
Albany, New York
Source: ClinicalTrials.gov public record
Updated Dec 5, 2013 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Physiological and Perceptual Responses During 4-Second Exercise

NCT06912932
View directory record Official record
Conditions
Cardiovascular Fitness
Interventions
Preventive
Behavioral
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 30 Years
Enrollment
11 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2024
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Apr 5, 2025 · Synced Jul 23, 2026, 6:22 PM EDT
Completed No phase listed Observational Results available

Correlates of GERD Symptom Severity

NCT03020550
View directory record Official record
Conditions
GERD
Interventions
Not listed
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
21 Years to 70 Years
Enrollment
24 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 14, 2021 · Synced Jul 23, 2026, 6:22 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Brain Receptors in Sympathetic Nervous System Regulation

NCT00029627
View directory record Official record
Conditions
Healthy
Interventions
Yohimbine
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2002 – 2004
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Jul 23, 2026, 6:22 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Daoist Zhanzhuang and Human Flourishing

NCT06573034
View directory record Official record
Conditions
Stress, Physiological, Stress, Psychological, Inflammatory Response, Well-Being, Psychological
Interventions
Daoist Zhanzhuang, Sham Wall Squat
Behavioral
Lead sponsor
University of North Carolina, Charlotte
Other
Eligibility
18 Years to 25 Years
Enrollment
120 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2027
U.S. locations
1
States / cities
Charlotte, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 30, 2026 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Physiological Responses to Maximal 4-s Sprint Interval Cycling

NCT04448925
View directory record Official record
Conditions
Exercise, Cardiovascular Function, Fatigue, Muscular Power
Interventions
inertial-load exercise (ILE)
Other
Lead sponsor
University of Texas at Austin
Other
Eligibility
18 Years to 40 Years
Enrollment
16 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2019 – 2020
U.S. locations
1
States / cities
Austin, Texas
Source: ClinicalTrials.gov public record
Updated Jun 25, 2020 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

The Effects of Fiber on Appetite and Digestion Hormones

NCT01050101
View directory record Official record
Conditions
Psychological Phenomena and Processes, Nutrition Physiological Phenomena
Interventions
No fiber, Low GI high fiber viscous meal, Low GI high fiber non-viscous
Dietary Supplement
Lead sponsor
Clinical Nutrition Research Center, Illinois Institute of Technology
Industry
Eligibility
18 Years and older · Female only
Enrollment
22 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2018
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jan 26, 2021 · Synced Jul 23, 2026, 6:22 PM EDT
Recruiting No phase listed Observational Accepts healthy volunteers

Metabolic and Physiologic Responses to Hormone Therapy in Transgender and Gender Diverse People

NCT06083766
View directory record Official record
Conditions
Effects of GAHT, on Skeletal Muscle in TGD
Interventions
hormone therapy
Behavioral
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 40 Years
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Nov 9, 2025 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Phase 2 Interventional Results available

Sofosbuvir (GS-7977) in Combination With PEG and Ribavirin for 12 Weeks in Treatment Experienced Subjects With Chronic HCV Infection Genotype 2 or 3

NCT01808248
View directory record Official record
Conditions
Hepatitis C
Interventions
SOF, PEG, RBV
Drug
Lead sponsor
Gilead Sciences
Industry
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Sep 11, 2014 · Synced Jul 23, 2026, 6:22 PM EDT
Recruiting No phase listed Observational

Exploring the Physiologic, Pharmacodynamic, and Clinical Responses of Skeletal Muscle in Patients With Spinal Muscular Atrophy Treated With SMN-Directed Therapies

NCT06532474
View directory record Official record
Conditions
Spinal Muscular Atrophy
Interventions
Not listed
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
5 Years to 20 Years
Enrollment
24 participants
Timeline
2025 – 2028
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 8, 2026 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study to Evaluate Hemodynamic Response to to a Sublingual Dose of Glyceryl Trinitrate in Subjects Receiving TA-1790, Sildenafil Citrate, and Placebo

NCT01616485
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
TA-1790, Sildenafil citrate, Placebo, Nitrostat
Drug
Lead sponsor
VIVUS LLC
Industry
Eligibility
30 Years to 60 Years · Male only
Enrollment
106 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Phoenix, Arizona
Source: ClinicalTrials.gov public record
Updated Jun 13, 2012 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Not applicable Interventional Results available

Assessment of Chiropractic Treatment Using Reaction and Response Times in Members of the Special Operation Forces (ACT2)

NCT02168153
View directory record Official record
Conditions
Physiological Measurements of Response and Reaction Times
Interventions
Chiropractic Manipulative Therapy, Wait-list
Other
Lead sponsor
RAND
Other
Eligibility
20 Years and older
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Fort Campbell North, Kentucky
Source: ClinicalTrials.gov public record
Updated Apr 18, 2019 · Synced Jul 23, 2026, 6:22 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Pulse Revolution: Enhancing Metabolic Health Through the Power of Processed Chickpeas

NCT06758869
View directory record Official record
Conditions
Healthy
Interventions
Control, Whole Chickpeas, Puréed Chickpeas, 100% Chickpea Flour Product
Other
Lead sponsor
USDA Grand Forks Human Nutrition Research Center
Federal
Eligibility
19 Years to 60 Years
Enrollment
204 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2027 – 2029
U.S. locations
1
States / cities
Grand Forks, North Dakota
Source: ClinicalTrials.gov public record
Updated Apr 23, 2026 · Synced Jul 23, 2026, 6:22 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Pilot Study to Examine the Acute Impact of Veillonella Supplementation on Exercise and Lactate Responses

NCT05816291
View directory record Official record
Conditions
Lactate Blood Increase, Exhaustion - Physiological
Interventions
Time to Exhaustion at velocity at VO2max
Dietary Supplement
Lead sponsor
Lindenwood University
Other
Eligibility
18 Years to 50 Years
Enrollment
7 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Apr 17, 2023 · Synced Jul 23, 2026, 6:22 PM EDT
Not listed Not applicable Interventional Accepts healthy volunteers

Stress Management Using an App to Improve Response With PDE5 Inhibitors in Men With Erectile Dysfunction.

NCT02757807
View directory record Official record
Conditions
Erectile Dysfunction
Interventions
Utilization of Serenita for Relaxation
Behavioral
Lead sponsor
Eco Fusion
Industry
Eligibility
18 Years to 55 Years · Male only
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jul 19, 2016 · Synced Jul 23, 2026, 6:22 PM EDT