Insulin SensitivityNCT02987491
Exercise and Insulin Signaling in Human Skeletal Muscle
A study testing Exercise in people with Insulin Sensitivity and Obesity, run by Oregon State University at 1 site in United States.
Trial summary
Obesity is associated with a decrease in skeletal muscle insulin sensitivity. Aerobic exercise can increase insulin sensitivity in the few hours following exercise, however the cellular mechanisms are not completely understood. Read more about this study
- Who is it for?
- Ages 18 to 45 yearsHealthy volunteers can take part
- Conditions the study is for
- Insulin Sensitivity, Obesity, Sedentary Lifestyle
- What is being tested?
- Exercise
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 20 participants
- Where
- 1 siteUnited States
- Study dates
- Nov 2016to 28 Jun 2018
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 45 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Males or Females
- Aged 18-45 years
- Normal weight (body mass index [BMI] 18-26 kg/m2) or obese (BMI 30-46 kg/m2)
- Sedentary (< 1 hour of planned physical activity per week for ≥ 6 months)
- Weight stable (< 2 kg change in body mass for ≥ 6 months)
- Non-smokers (no tobacco or nicotine use for ≥ 1 year)
Who cannot join
- Hypertension (systolic blood pressure >140 mmHg, diastolic blood pressure > 90mmHg)
- Chronic health condition including diabetes, cardiovascular disease, treated hypertension, cancer, anemia, uncontrolled hyper- or hypothyroidism.
- Pregnant, nursing, irregular menses or post-menopausal (if female)
- Hyperglycemia (fasting glucose >126 mg/dl)
- Hypercholesterolemia (fasting LDL>140mg/dl)
- Hemoglobin < 13.0 g/dl (males), < 11.5 g/dl (females)
Show all 11Show fewer
- Compromised renal function (outside 135-145 mmol/L sodium, 3.5-5.1 mmol/L potassium)
- Lidocaine allergy
- Medications including β-blockers, angiotensin converting enzyme inhibitors, insulin, thiazolidinediones, metformin, sulfonylureas, chronic non-steroidal anti-inflammatory use, anti-coagulant (e.g. warfarin), current antibiotics, opiates, monoamine oxidase inhibitors, benzodiazepines, or others that may impact the study outcomes
- Any physical limitation that prevents a participant from safely completing the exercise test
- Due to the risks associated with the current protocol, individuals with a diminished capacity to consent will be excluded. Similarly, due to the need for constant, accurate participant monitoring during metabolic study activities, participants will need to clearly understand verbal and written English. Participants who cannot clearly understand verbal and written English will be excluded.
Trial locations and contacts
1 site in 1 country.
About this study
Obesity is associated with a decrease in skeletal muscle insulin sensitivity. Aerobic exercise can increase insulin sensitivity in the few hours following exercise, however the cellular mechanisms are not completely understood. The current project is to investigate mechanisms of exercise improvements to skeletal muscle insulin sensitivity.
Read the detailed description
Study Overview: We are investigating the mechanisms by which exercise improves the response of skeletal muscle to insulin in lean and obese adults. Participants will complete 4 study visits consisting of: 1) screening visit, 2) maximal exercise test visit, and then a randomized order of 3) a resting metabolic study visit, and 4) an exercise metabolic study visit. Metabolic study visits for resting and exercise conditions will be identical, other than remaining sedentary or performing exercise. Skeletal muscle biopsy samples will be collected during resting, immediately post-exercise and during insulin stimulated conditions.
- Conditions
- Insulin Sensitivity, Obesity, Sedentary Lifestyle
- Being tested
- Exercise
- Keywords
- exercise
- Medical subject headings
- Insulin Resistance, Obesity, Sedentary Behavior, Motor Activity
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
ExerciseBehavioural
Participants will perform 2 metabolic study days of either resting or acute bout of cycling exercise in a randomized cross-over design.
| Study group | Role | What they receive |
|---|---|---|
| Exercise Metabolic Study Day | Experimental | Participants will perform a single bout of moderate intensity exercise on a cycle ergometer for 60 minutes.
A total of 3 muscle biopsies will be collected throughout the study day. Insulin sensitivity will be measured using a hyperinsulinemic-euglycemic clamp with glucose tracers. Receives: Behavioral: Exercise |
| Resting Metabolic Study Day | No intervention | Participants will rest quietly in bed for 60 minutes and resting energy metabolism will be measured with a ventilated hood. A total of 3 muscle biopsies will be collected throughout the study day. Insulin sensitivity will be measured using a hyperinsulinemic-euglycemic clamp with glucose tracers. |
What is being measured
The primary outcome is the main question the study is designed to answer.
Skeletal muscle insulin sensitivity
Skeletal muscle insulin sensitivity will be measured by hyperinsulinemic-euglycemic clamp.
Measured: 2 hours following rest or exercise
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted9 Dec 2016 (estimated)
- Study startNov 2016
- Primary completion28 Jun 2018
- Study completion28 Jun 2018
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (2)Papers the sponsor has linked to this study.
- Other trials for Insulin SensitivityStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Enrolment
- 20 participants (actual)
Sponsor and investigators
- Lead sponsor
- Oregon State University
- Sponsor type
- University, hospital or other
- Responsible party
- Sponsor
- Investigators
- Matthew Robinson, PhD, Principal investigator, Oregon State University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT02987491
- Sponsor's protocol ID
- 7605
- Status last verified
- Aug 2019
- First submitted
- 21 Nov 2016
- Last updated
- 28 Aug 2019
- Results posted
- No
- Data monitoring committee
- No
- Individual data sharing
- No
Publications
Newsom SA, Stierwalt HD, Ehrlicher SE, Robinson MM. Substrate-Specific Respiration of Isolated Skeletal Muscle Mitochondria after 1 h of Moderate Cycling in Sedentary Adults. Med Sci Sports Exerc. 2021 Jul 1;53(7):1375-1384. doi: 10.1249/MSS.0000000000002615.
PubMed 34127633Stierwalt HD, Ehrlicher SE, Robinson MM, Newsom SA. Skeletal Muscle ACSL Isoforms Relate to Measures of Fat Metabolism in Humans. Med Sci Sports Exerc. 2021 Mar 1;53(3):624-632. doi: 10.1249/MSS.0000000000002487.
PubMed 32796254
Study at a glance
From the registry record, last updated by the sponsor on 28 Aug 2019. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Exercise and Insulin Signaling in Human Skeletal Muscle
- ClinicalTrials.gov ID
- NCT02987491
- Acronym / sponsor ID
- 7605
- Conditions
- Insulin Sensitivity, Obesity, Sedentary Lifestyle
- Keywords
- exercise
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 20 participants (actual)
- Lead sponsor
- Oregon State UniversityUniversity, hospital or other
- Study start
- Nov 2016
- Primary completion
- 28 Jun 2018 (actual)
- Study completion
- 28 Jun 2018 (actual)
- First posted
- 9 Dec 2016 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Obesity is associated with a decrease in skeletal muscle insulin sensitivity. Aerobic exercise can increase insulin sensitivity in the few hours following exercise, however the cellular mechanisms are not completely understood. The current project is to investigate mechanisms of exercise improvements to skeletal muscle insulin sensitivity.
Detailed description
Study Overview: We are investigating the mechanisms by which exercise improves the response of skeletal muscle to insulin in lean and obese adults. Participants will complete 4 study visits consisting of: 1) screening visit, 2) maximal exercise test visit, and then a randomized order of 3) a resting metabolic study visit, and 4) an exercise metabolic study visit. Metabolic study visits for resting and exercise conditions will be identical, other than remaining sedentary or performing exercise. Skeletal muscle biopsy samples will be collected during resting, immediately post-exercise and during insulin stimulated conditions.
Study design
- Primary purpose
- Basic science
- Allocation
- Randomised
- Intervention model
- Crossover
- Masking
- None (open label)
- Number of arms
- 2
| Arm | Type | Receives |
|---|---|---|
| Exercise Metabolic Study Day | Experimental | Behavioral: ExerciseParticipants will perform a single bout of moderate intensity exercise on a cycle ergometer for 60 minutes. A total of 3 muscle biopsies will be collected throughout the study day. Insulin sensitivity will be measured using a hyperinsulinemic-euglycemic clamp with glucose tracers. |
| Resting Metabolic Study Day | No intervention | –Participants will rest quietly in bed for 60 minutes and resting energy metabolism will be measured with a ventilated hood. A total of 3 muscle biopsies will be collected throughout the study day. Insulin sensitivity will be measured using a hyperinsulinemic-euglycemic clamp with glucose tracers. |
Who may qualify
- Ages
- 18 to 45 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- Males or Females
- Aged 18-45 years
- Normal weight (body mass index [BMI] 18-26 kg/m2) or obese (BMI 30-46 kg/m2)
- Sedentary (< 1 hour of planned physical activity per week for ≥ 6 months)
- Weight stable (< 2 kg change in body mass for ≥ 6 months)
Key exclusion criteria (11 listed)
- Hypertension (systolic blood pressure >140 mmHg, diastolic blood pressure > 90mmHg)
- Chronic health condition including diabetes, cardiovascular disease, treated hypertension, cancer, anemia, uncontrolled hyper- or hypothyroidism.
- Pregnant, nursing, irregular menses or post-menopausal (if female)
- Hyperglycemia (fasting glucose >126 mg/dl)
- Hypercholesterolemia (fasting LDL>140mg/dl)
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| ExerciseParticipants will perform 2 metabolic study days of either resting or acute bout of cycling exercise in a randomized cross-over design. | Behavioural | Exercise Metabolic Study Day |
Primary outcome
Skeletal muscle insulin sensitivity
Time frame: 2 hours following rest or exercise
Skeletal muscle insulin sensitivity will be measured by hyperinsulinemic-euglycemic clamp.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 28 Aug 2019.
- Derived from this study: PubMed 34127633Newsom SA, Stierwalt HD, Ehrlicher SE, Robinson MM. Substrate-Specific Respiration of Isolated Skeletal Muscle Mitochondria after 1 h of Moderate Cycling in Sedentary Adults. Med Sci Sports Exerc. 2021 Jul 1;53(7):1375-1384. doi: 10.1249/MSS.0000000000002615.
- Derived from this study: PubMed 32796254Stierwalt HD, Ehrlicher SE, Robinson MM, Newsom SA. Skeletal Muscle ACSL Isoforms Relate to Measures of Fat Metabolism in Humans. Med Sci Sports Exerc. 2021 Mar 1;53(3):624-632. doi: 10.1249/MSS.0000000000002487.
- Individual participant dataSharing planned: No
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Matthew Robinson, PhD principal investigator
Oregon State University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Exercise in people with Insulin Sensitivity and Obesity, run by Oregon State University at 1 site in United States.
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 11 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 28 Aug 2019. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
Skeletal muscle insulin sensitivity (time frame: 2 hours following rest or exercise). It is what the study was designed to measure, not a finding.
Where can I read the original study information?
On the ClinicalTrials.gov record for NCT02987491, which also lists 2 linked publications.
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Aug 2019.