Journal article
METABOLIC, CARDIOVASCULAR, AND PERCEPTUAL RESPONSES TO A THERMOGENIC NUTRITIONAL SUPPLEMENT AT REST, DURING EXERCISE, AND RECOVERY IN MEN
Journal of strength and conditioning research, Vol.28(8), pp.2154-2163
08/01/2014
DOI: 10.1519/JSC.0000000000000369
PMID: 24513614
Abstract
Twenty-one men (mean +/- SD; age = 23.5 +/- 2.6 years, BMI = 26.0 +/- 2.4 kg.m(-2)) completed this randomized, double-blinded, placebo-controlled, crossover study to examine acute responses to a thermogenic nutritional supplement. Each testing session included: (a) 30 minutes resting, followed by placebo or thermogenic nutritional supplementation, (b) 50 minutes postsupplementation resting, (c) 60 minutes walking, and (d) 50 minutes postexercise recovery. Gas exchange variables and heart rate (HR) were recorded during each phase. Blood pressure was recorded during all phases except exercise. Ratings of perceived exertion (RPE) were recorded only during exercise. There were no significant differences for any of the measures between the supplement and placebo during the initial resting or postsupplementation phases. During exercise, energy expenditure (EE) (placebo = 18.98-19.06 kJ.min(-1) and supplement = 19.44-19.82 kJ.min(-1)) and (V) over dotO(2) (placebo = 11.27-11.35 ml.kg(-1).min(-1); supplement = 11.64-11.82 ml.kg(-1).min(-1)) were greater for the supplement than placebo. There were no differences in respiratory exchange ratio (RER), HR, or RPE between the supplement and placebo during exercise. Postexercise, only (V) over dotO(2) (placebo = 3.53-3.63 ml.kg(-1).min(-1); supplement = 3.71-3.84 ml.kg(-1).min(-1)) was greater for the supplement than placebo, but there were no differences in EE, RER, HR, or blood pressure. These findings suggested that the specific blend of ingredients in the thermogenic nutritional supplement, when combined with exercise, increased the metabolic rate with minimal changes in cardiovascular function and no effect on RPE.
Details
- Title: Subtitle
- METABOLIC, CARDIOVASCULAR, AND PERCEPTUAL RESPONSES TO A THERMOGENIC NUTRITIONAL SUPPLEMENT AT REST, DURING EXERCISE, AND RECOVERY IN MEN
- Creators
- Haley C. Bergstrom - University of Nebraska–LincolnTerry J. Housh - University of Nebraska Medical CenterDaniel A. Traylor - University of Nebraska–LincolnRobert W. Lewis - University of Nebraska–LincolnKristen C. Cochrane - University of Nebraska–LincolnNathaniel D. M. Jenkins - University of Nebraska–LincolnRichard J. Schmidt - University of Nebraska–LincolnGlen O. Johnson - University of Nebraska–LincolnDona J. Housh - Oral BiologyJoel T. Cramer - Nutrition & Health Sciences
- Resource Type
- Journal article
- Publication Details
- Journal of strength and conditioning research, Vol.28(8), pp.2154-2163
- DOI
- 10.1519/JSC.0000000000000369
- PMID
- 24513614
- NLM abbreviation
- J Strength Cond Res
- ISSN
- 1064-8011
- eISSN
- 1533-4287
- Publisher
- Lippincott Williams & Wilkins
- Number of pages
- 10
- Grant note
- General Nutrition Corporation
- Language
- English
- Date published
- 08/01/2014
- Academic Unit
- Center for Social Science Innovation; Injury Prevention Research Center; Health, Sport, and Human Physiology
- Record Identifier
- 9984259400502771
Metrics
3 Record Views