Accelerating Post-exercise Muscle Glycogen Resynthesis in Humans: Impact of Combined Nutrient Intake and Intermittent Pneumatic Compression or Heat Therapy

March 8, 2021 updated by: PepsiCo Global R&D
To determine if modalities designed to improve blood flow combined with post-exercise nutrient intake will improve replenishment of muscle glycogen better than nutrient intake alone. A secondary objective is to compare the effectiveness of heat therapy and intermittent pneumatic compression on glycogen replenishment.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
26

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • United States
    • Indiana
      • West Lafayette, Indiana, United States, 47907
        • Purdue University, Department of Health & Kinesiology

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 35 years (Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

  1. Subjects will be male and female participants in good health
  2. 18-35 years of age
  3. Currently performing cardiovascular or intermittent exercise at a moderate to high intensity at least 5 days per week for 60 minutes or longer per day.
  4. Understanding of the procedures to be undertaken as part of the study
  5. Willingness to participate in exercise testing and follow instructions provided by the experimenter
  6. Informed, voluntary, written consent to participate in the study

Exclusion Criteria:

  1. History of deep vein thrombosis
  2. Obesity (BMI > 30 kg/m2)
  3. Hypertension (resting SBP > 140/90 mmHg)
  4. Smoking
  5. Pregnant, planning to become pregnant, or lactating
  6. Supplements containing antioxidants including vitamin C and E and N-acetyl cysteine
  7. Any medication
  8. Lactose intolerance
  9. Participation in another study within the previous 30 days or in a PepsiCo funded study within the past 6 months.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Basic Science
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Intermittent pneumatic compression
IPC sleeve device on leg
Device: Compression sleeve
From foot to hip/groin on both legs with only 1 leg connected to pneumatic pump for 1 hour
Other Names:
  • IPC
Other: Glycogen-depleting exercise session
Prolonged intermittent high intensity running (LIST protocol)
Other: Nutrient Intake (beverage)
Post-exercise, all participants will receive a beverage containing 1.0 g/kg carbohydrate and 0.3 g/kg protein from the mixture of Gatorade Recover Protein Shake and Gatorade Thirst Quencher
Procedure: Skeletal muscle biopsy
Vastus lateralis muscle in the lower thigh will be obtained by the percutaneous needle technique
Experimental: Heat therapy
Custom water-circulating garment on leg
Other: Glycogen-depleting exercise session
Prolonged intermittent high intensity running (LIST protocol)
Other: Nutrient Intake (beverage)
Post-exercise, all participants will receive a beverage containing 1.0 g/kg carbohydrate and 0.3 g/kg protein from the mixture of Gatorade Recover Protein Shake and Gatorade Thirst Quencher
Procedure: Skeletal muscle biopsy
Vastus lateralis muscle in the lower thigh will be obtained by the percutaneous needle technique
Device: Heat therapy
Custom leg garment with one leg heated by circulating hot water approx 40 degrees C, the other leg approx 32 degrees C (thermoneutral) for 1 hour

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Rate of glycogen resynthesis
Time Frame: Change from baseline to 1.5 hrs and 3.5 hrs post exercise bout. Biopsy 1 post-exercise pre nutrient intake 1 and compression (IPC) or heat, biopsy 2 post compression or heat, pre-nutrition intake 2, biopsy 3 at 210 min. Higher rate is better.
Leg skeletal muscle glycogen level assessment using assay kit
Change from baseline to 1.5 hrs and 3.5 hrs post exercise bout. Biopsy 1 post-exercise pre nutrient intake 1 and compression (IPC) or heat, biopsy 2 post compression or heat, pre-nutrition intake 2, biopsy 3 at 210 min. Higher rate is better.
Muscle functional recovery: Skeletal muscle function
Time Frame: Change from pre-exercise to post-exercise and prior to biopsies and treatments, and 24 hours post exercise. Less fatigue is better.
Work fatigue (%) of the knee extensors measured using an isokinetic dynamometer
Change from pre-exercise to post-exercise and prior to biopsies and treatments, and 24 hours post exercise. Less fatigue is better.
Muscle functional recovery: Perceived muscle soreness
Time Frame: Change from pre-exercise to post-exercise and prior to biopsies and treatments, and 24 hours post exercise. Less soreness is better.
Knee extensor muscle soreness on a visual analog scale (VAS) of 100 mm after stepping on and off a 40 cm (female) or 45 cm (male) box three times
Change from pre-exercise to post-exercise and prior to biopsies and treatments, and 24 hours post exercise. Less soreness is better.

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
mRNA expression of genes involved in regulation of glucose and glycogen metabolism and muscle functional recovery
Time Frame: Change from baseline to 1.5 hours and 3.5 hours post exercise bout. Biopsy 1 post-exercise pre- nutrient intake 1 and compression (IPC) or heat, biopsy 2 post compression or heat and pre- nutrition intake 2, biopsy 3 at 210 min. Higher expression better.
Leg skeletal muscle fiber analysis determined using RT-PCR (Real-time polymerase chain reaction)
Change from baseline to 1.5 hours and 3.5 hours post exercise bout. Biopsy 1 post-exercise pre- nutrient intake 1 and compression (IPC) or heat, biopsy 2 post compression or heat and pre- nutrition intake 2, biopsy 3 at 210 min. Higher expression better.
Serum insulin
Time Frame: Change from post exercise at same time as biopsy 1 (Time 0), biopsy 2 (1.5 hrs) and biopsy 3 (3.5 hrs)
Blood test using ELISA kit
Change from post exercise at same time as biopsy 1 (Time 0), biopsy 2 (1.5 hrs) and biopsy 3 (3.5 hrs)
Serum Glucose
Time Frame: Change from post exercise at same time as biopsy 1 (Time 0), biopsy 2 (1.5 hrs) and biopsy 3 (3.5 hrs
Blood test using ELISA kit
Change from post exercise at same time as biopsy 1 (Time 0), biopsy 2 (1.5 hrs) and biopsy 3 (3.5 hrs

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
PepsiCo Global R&D

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Bruno Roseguini, PhD, Purdue University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
September 19, 2018

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 21, 2019

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 21, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
April 29, 2020

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 29, 2020

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
May 1, 2020

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
March 10, 2021

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 8, 2021

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
March 1, 2021

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • PEP-1723

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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