EFFECTS OF A CARBOHYDRATE-, PROTEIN-, AND RIBOSE-CONTAINING REPLETION DRINK DURING 8 WEEKS OF ENDURANCE TRAINING ON AEROBIC CAPACITY, ENDURANCE PERFORMANCE, AND BODY COMPOSITION

    Authors

    J. T. Cramer; T. J. Housh; G. O. Johnson; J. W. Coburn;J. R. Stout

    Comments

    Authors: contact us about adding a copy of your work at [email protected]

    Abbreviated Journal Title

    J. Strength Cond. Res.

    Keywords

    carbohydrate-protein drink; recovery; glycogen resynthesis; nutritional; supplement; athletic performance; MYOADENYLATE DEAMINASE DEFICIENCY; MUSCLE GLYCOGEN; SKELETAL-MUSCLE; DIFFERENCE SCORES; EXERCISE; RECOVERY; METABOLISM; HUMANS; SUPPLEMENTATION; INCREASE; Sport Sciences

    Abstract

    Cramer, JT, Housh, TJ, Johnson, GO, Coburn, JW, and Stout, JR. Effects of a carbohydrate-, protein-, and ribose-containing repletion drink during 8 weeks of endurance training on aerobic capacity, endurance performance, and body composition. J Strength Cond Res 26(8): 2234-2242, 2012-This study compared a carbohydrate-, protein-, and ribose-containing repletion drink vs. carbohydrates alone during 8 weeks of aerobic training. Thirty-two men (age, mean +/- SD = 23 +/- 3 years) performed tests for aerobic capacity ((V) over dotO(2)peak), time to exhaustion (TTE) at 90% (V) over dotO(2)peak, and percent body fat (%fat), and fat-free mass (FFM). Testing was conducted at pre-training (PRE), mid-training at 3 weeks (MID3), mid-training at 6 weeks (MID6), and post-training (POST). Cycle ergometry training was performed at 70% (V) over dotO(2)peak for 1 hours per day, 5 days per week for 8 weeks. Participants were assigned to a test drink (TEST; 370 kcal, 76 g carbohydrate, 14 g protein, 2.2 g d-ribose; n = 15) or control drink (CON; 370 kcal, 93 g carbohydrate; n = 17) ingested immediately after training. Body weight (BW; 1.8% decrease CON; 1.3% decrease TEST from PRE to POST), %fat (5.5% decrease CON; 3.9% decrease TEST), and FFM (0.1% decrease CON; 0.6% decrease TEST) decreased (p < = 0.05), whereas (V) over dotO(2)peak (19.1% increase CON; 15.8% increase TEST) and TTE (239.1% increase CON; 377.3% increase TEST) increased (p < = 0.05) throughout the 8 weeks of training. Percent decreases in %fat from PRE to MID3 and percent increases in FFM from PRE to MID3 and MID6 were greater (p < = 0.05) for TEST than CON. Overall, even though the TEST drink did not augment BW, (V) over dotO(2)peak, or TTE beyond carbohydrates alone, it did improve body composition (%fat and FFM) within the first 3-6 weeks of supplementation, which may be helpful for practitioners to understand how carbohydrate-protein recovery drinks can and cannot improve performance in their athletes.

    Journal Title

    Journal of Strength and Conditioning Research

    Volume

    26

    Issue/Number

    8

    Publication Date

    1-1-2012

    Document Type

    Article

    Language

    English

    First Page

    2234

    Last Page

    2242

    WOS Identifier

    WOS:000306858000029

    ISSN

    1064-8011

    Share

    COinS
     

    Accessibility Statement

    This item was created or digitized prior to April 24, 2027, or is a reproduction of legacy media created before that date. It is preserved in its original, unmodified state specifically for research, reference, or historical recordkeeping. In accordance with the ADA Title II Final Rule, the University Libraries provides accessible versions of archival materials upon request. To request an accommodation for this item, please submit an accessibility request form.