Strength Training and Resveratrol
STaR
Resveratrol-mediated Changes in Extracellular Vesicle microRNA Cargo as a Novel Contributor to Resistance Training-induced Skeletal Muscle Adaptations in Older Adults
2 other identifiers
interventional
36
1 country
1
Brief Summary
The main goal of this study is to find out if supplementing with resveratrol improves skeletal muscle adaptations to strengthening exercise (resistance training or strength training) in adults age 60+, and to determine whether circulating vehicles of inter-organ communication (extracellular vesicles) and their cargo might help explain those responses. The investigators will also examine whether resveratrol supplementation improves blood vessel function and cognitive function (brain health) in response to strength training.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for not_applicable
Started Jun 2025
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
September 3, 2024
CompletedFirst Posted
Study publicly available on registry
September 19, 2024
CompletedStudy Start
First participant enrolled
June 13, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
August 1, 2026
June 29, 2025
June 1, 2025
1 year
September 3, 2024
June 27, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (5)
Circulating extracellular vesicle microRNA profile
Circulating extracellular vesicles will be isolated from plasma and their microRNA cargo will be sequenced.
During pre-, mid-, and post-testing (each separated by about 6 weeks)
Muscle torque
Participants will be instructed to try and straighten their leg, against resistance, as forcefully as possible and maximal torque of the quadriceps assessed using a dynamometer.
During pre-, mid-, and post-testing (each separated by about 6 weeks)
Muscle fatigability
Participants will perform 32 repetitions of knee extensions on a dynamometer and the change in torque from the beginning to the end will be used to indicate fatigability.
During pre-, mid-, and post-testing (each separated by about 6 weeks)
Muscle strength
Participants will perform submaximal testing to assess strength on key exercises included in the strength training protocol.
During pre-, mid-, and post-testing (each separated by about 6 weeks)
Appendicular skeletal muscle mass index
Assessed using dual-energy x-ray absorptiometry (DEXA)
During pre-, mid-, and post-testing (each separated by about 6 weeks)
Secondary Outcomes (6)
Waist-to-hip ratio
During pre-, mid-, and post-testing (each separated by about 6 weeks)
Vascular function
During pre-, mid-, and post-testing (each separated by about 6 weeks)
Cognitive function
During pre-, mid-, and post-testing (each separated by about 6 weeks)
Grip strength
During pre-, mid-, and post-testing (each separated by about 6 weeks)
Lower body strength/endurance
During pre-, mid-, and post-testing (each separated by about 6 weeks)
- +1 more secondary outcomes
Study Arms (2)
Resveratrol (RSV) group
EXPERIMENTALParticipants will be randomized to consume resveratrol (500 mg) daily for 14 weeks (two 6-week blocks of resistance training \[supervised, full-body, 3 days/week\] + one testing week \[3 days\] following each block) after the pre-testing period. Participants will be provided with 7 days' worth of supplements at a time in pre-filled pill boxes. Pill boxes will be refilled weekly and adherence monitored.
Placebo
PLACEBO COMPARATORParticipants will be randomized to consume placebo capsules (cellulose, visually identical to resveratrol capsules) daily for 14 weeks (two 6-week blocks of resistance training \[supervised, full-body, 3 days/week\] + one testing week \[3 days\] following each block) after the pre-testing period. Participants will be provided with 7 days' worth of supplements at a time in pre-filled pill boxes. Pill boxes will be refilled weekly and adherence monitored.
Interventions
After pre-testing, participants will perform full-body strength training three times per week for two 6-week blocks. The acute program variables (sets, repetitions, training frequency) will follow a non-linear periodized, progressive design consisting of muti-joint and single-joint exercises. Exercise stress will be varied by using different exercises and loads. The two training blocks will be separated by a mid-intervention testing week, allowing for the study team to monitor participants' progress, communicate progress to participants to promote adherence, and adjust target loads as appropriate for the second half of the intervention. An additional testing week will follow the second 6-week block.
Participants will be randomized to consume resveratrol (500 mg) daily for 14 weeks (two 6-week blocks of resistance training \[supervised, full-body, 3 days/week\] + one testing week \[3 days\] following each block) after the pre-testing period. Participants will be provided with 7 days' worth of supplements at a time in pre-filled pill boxes. Pill boxes will be refilled weekly and adherence monitored.
Participants will be randomized to consume placebo capsules (cellulose, visually identical to resveratrol capsules) daily for 14 weeks (two 6-week blocks of resistance training \[supervised, full-body, 3 days/week\] + one testing week \[3 days\] following each block) after the pre-testing period. Participants will be provided with 7 days' worth of supplements at a time in pre-filled pill boxes. Pill boxes will be refilled weekly and adherence monitored.
Eligibility Criteria
You may qualify if:
- Age 60+
- Minimally active (less than 1 hour of structured exercise/week other than walking)
- No resistance training for the previous 6 months
- Not currently taking resveratrol supplements
- Stable medication, supplement, dietary, and physical activity regimens for the previous 3 months and no plans to change throughout the study period
- Body mass at least 110 lbs
You may not qualify if:
- Medical complications that could increase risk during exercise (e.g., cardiovascular disease, uncontrolled hypertension, type 1 or 2 diabetes, orthopedic contraindication to exercise, kidney disease, etc.)
- Cannabis or nicotine use
- Consume more than 7 alcohol-containing beverages per week
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Department of Kinesiology & Sport Management, Texas Tech University
Lubbock, Texas, 79409, United States
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Danielle E Levitt, PhD
Texas Tech University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- PREVENTION
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
September 3, 2024
First Posted
September 19, 2024
Study Start
June 13, 2025
Primary Completion (Estimated)
July 1, 2026
Study Completion (Estimated)
August 1, 2026
Last Updated
June 29, 2025
Record last verified: 2025-06
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL
- Time Frame
- Dr. Danielle Levitt (PI) will deposit data into the appropriate repositories. Data upload will occur when publications associated with each data set are submitted and made public (where applicable) upon acceptance.
- Access Criteria
- Human participants data (except large-scale data sets)- reasonable requests must be submitted to the TTU Dataverse. MicroRNA sequencing data will be available in large-scale output format with no identifiable information (unique code).
De-identified data from human participants (other than large-scale data) will be deposited into the TTU Dataverse with restricted access - by request only. Data will be linked only with a unique code. MicroRNA sequencing data will be deposited to the Gene Expression Omnibus (GEO). The following will be submitted to accompany data: * Full study protocol * Names and descriptions of data sets * Annotated data collection forms * Data dictionary * Documentation of calculated variables * Any changes made to the protocol over time * Frozen datasets used for the primary publication, when applicable