Glycogen synthesis after road cycling in the fed state

A. Reinert, D. Slivka, J. Cuddy, B. Ruby

Research output: Contribution to journalArticle

1 Scopus citations

Abstract

The purpose of this study was to determine the Effects of a recovery beverage immediately after exercise on rates of muscle glycogen resynthesis in response to road cycling when nutritional supplementation was supplied during exercise and a solid meal was served two hours after exercise. Eight trained male cyclists, (25 ±4 years, 69.3 ±5.2 kg, VO2 peak = 4.5 ±0.4 L·min-1) performed two 62 km outdoor training rides in a double-blind, randomized cross-over experiment. Subjects received a food bar and a commercial sport drink during each ride. A recovery beverage (40g CHO + 20g PRO) or a placebo (PL) was administered 30 min post-exercise. At 2h post-exercise, a solid meal was provided for both trials. There was no difference between trials at any time point for glycogen (140 ±9, 56 ±8, and 70 plusmn;8 mmol · kg-1 wet wt. 1· hr.-1 for pre, post, and 4h post, respectively). The addition of a supplemental recovery beverage ingested soon after exercise did not significantly increase the rate of muscle glycogen resynthesis after 4h of recovery when nutritional supplementation is provided during exercise and a meal is consumed 2h after exercise.

Original languageEnglish (US)
Pages (from-to)545-549
Number of pages5
JournalInternational Journal of Sports Medicine
Volume30
Issue number7
DOIs
Publication statusPublished - Dec 22 2009

    Fingerprint

Keywords

  • Carbohydrate
  • Field study
  • Glucose
  • Insulin
  • Powertap
  • Sport nutrition

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this