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| Name | Class |
|---|---|
| University of North Carolina, Chapel Hill | OTHER |
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The chronic phase of the study will evaluate the effects of pre-exercise and post-exercise ingestion of a multi-ingredient supplement on adaptations to a 6-week exercise program consisting of both resistance training and high intensity aerobic exercise, using a randomized, double-blind, placebo-controlled design. Participants will complete an enrollment/familiarization visit, a baseline testing session, followed by a 6-week supervised exercise intervention, and post-testing session identical to baseline testing. Participants will be randomized during the baseline session to groups receiving either 1) Active Treatment (pre-post supplementation), 2) placebo (noncaloric beverage), or 3) control, not participating in exercise or consuming a treatment. During the supervised 6-week resistance training program, participants will complete a moderate-intensity warm-up, a full-body resistance training workout (2 x per week) and an interval training session (1 x per week). Thirty-minutes prior to each training session, and within 15 minutes post-exercise, participants will consume their randomly assigned treatment beverage. Body composition, blood markers of muscle damage/recovery, strength, and performance tests will be measured before (baseline) and after training (Post) to evaluate the effects of supplementation. All data collection will be conducted by the Principal Investigator and Research Assistants. All subjects will report to the Applied Physiology Laboratory and Human Performance Center in Fetzer Hall for all testing and training sessions, which will span approximately 8 weeks.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Pre-workout plus and Protein recovery plus | Active Comparator | Pre-workout plus: a blend of caffeine, choline bitartrate, carbohydrate, HMB, vitamin D3 mixed with water and consumed within 30 minutes prior to exercise Protein recovery plus: a blend of whey protein, caseinate, carbohydrate, vitamin C, alpha-tocopherol, vitamin D3, glucosamine mixed with water and consumed 15 minutes post exercise |
|
| Placebo | Placebo Comparator | Non-caloric powder mixed with water and consumed within 30 minutes prior to exercise and within 15 minutes after exercise |
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| Control | No Intervention | This arm will receive no intervention |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Pre-workout plus and Protein recovery plus | Dietary Supplement | products consumed prior and after exercise |
|
| Measure | Description | Time Frame |
|---|---|---|
| Strength | Change from baseline in strength by measuring 1 repetition maximum for leg press and bench press | baseline, week 8 |
| Measure | Description | Time Frame |
|---|---|---|
| Muscle soreness | Change from baseline on muscle soreness using visual analog scale (a horizontal 100 mm line where zero will represent no soreness and one-hundred will represent maximum amount of soreness. Participants will be asked to place a single vertical that represents their current soreness. The scale will be measured with a calibrated ruler with the higher numbers representing more soreness.) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Abbie Smith-Ryan, PhD | University of North Carolina, Chapel Hill | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University of North Carolina at Chapel Hill | Chapel Hill | North Carolina | 27599 | United States |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 36407519 | Derived | Cabre HE, Gordon AN, Patterson ND, Smith-Ryan AE. Evaluation of pre-workout and recovery formulations on body composition and performance after a 6-week high-intensity training program. Front Nutr. 2022 Nov 2;9:1016310. doi: 10.3389/fnut.2022.1016310. eCollection 2022. |
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| ID | Term |
|---|---|
| D001836 | Body Weight Changes |
| ID | Term |
|---|---|
| D001835 | Body Weight |
| D012816 | Signs and Symptoms |
| D013568 | Pathological Conditions, Signs and Symptoms |
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| Placebo | Other | placebo product consumed prior and after exercise |
|
| 6-week resistance training program | Other | participants will complete a moderate-intensity warm-up, a full-body resistance training workout (2 x per week) and an interval training session (1 x per week) |
|
| baseline, week 8 |
| Recovery | Change from baseline on muscle damage by measuring creatine kinase and isoprostanes | baseline, week 8 |
| Training Volume | Change from baseline in total training volume measured by product of sets x repetitions completed x external load used in exercise routine | baseline, week 8 |
| Performance | Change from baseline on performance by measuring countermovement vertical jump | baseline, week 8 |
| Body Composition | Change from baseline in body composition using DXA measurements fat mass (kg) and lean mass (kg) | baseline, week 8 |