Breakfast omission reduces subsequent resistance exercise performance

Bin Naharudin, M.N., Yusof, A., Shaw, H., Stockton, M., Clayton, D.J. ORCID: 0000-0001-5481-0891 and James, L.J., 2019. Breakfast omission reduces subsequent resistance exercise performance. Journal of Strength and Conditioning Research. ISSN 1064-8011

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Abstract

Although much research has examined the influence of morning carbohydrate intake (i.e., breakfast) on endurance performance, little is known about its effects on performance in resistance-type exercise. Sixteen resistance-trained men (age 23 ± 4 years, body mass 77.56 ± 7.13 kg, and height 1.75 ± 0.04 m) who regularly (≥3 day/wk) consumed breakfast completed this study. After assessment of 10 repetition maximum (10RM) and familiarization process, subjects completed 2 randomized trials. After an overnight fast, subjects consumed either a typical breakfast meal (containing 1.5 g of carbohydrate/kg; breakfast consumption [BC]) or a water-only breakfast (breakfast omission [BO]). Two hours later, subjects performed 4 sets to failure of back squat and bench press at 90% of their 10RM. Sensations of hunger, fullness, desire to eat, and prospective food consumption were collected before, as well as immediately, 1 hour and 2 hours after BC/BO using 100-mm visual analogue scales. Total repetitions completed were lower during BO for both back squat (BO: 58 ± 11 repetitions; BC: 68 ± 14 repetitions; effect size [ES] = 0.98; p < 0.001) and bench press (BO: 38 ± 5 repetitions; BC: 40 ± 5 repetitions; ES = 1.06; p < 0.001). Fullness was greater, whereas hunger, desire to eat, and prospective food consumption were lower after a meal for BC compared with BO (p < 0.001). The results of this study demonstrate that omission of a pre-exercise breakfast might impair resistance exercise performance in habitual breakfast consumers. Therefore, consumption of a high-carbohydrate meal before resistance exercise might be a prudent strategy to help maximize performance

Item Type: Journal article
Publication Title: Journal of Strength and Conditioning Research
Creators: Bin Naharudin, M.N., Yusof, A., Shaw, H., Stockton, M., Clayton, D.J. and James, L.J.
Publisher: Lippincott Williams & Wilkins
Date: 1 January 2019
ISSN: 1064-8011
Identifiers:
NumberType
10.1519/jsc.0000000000003054DOI
Divisions: Schools > School of Science and Technology
Depositing User: Jonathan Gallacher
Date Added: 08 Mar 2019 11:26
Last Modified: 01 Jan 2020 03:00
URI: http://irep.ntu.ac.uk/id/eprint/35947

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