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Morning versus Evening Intake of Creatine in Elite Female Handball Players

Author

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  • Jose Manuel Jurado-Castro

    (Metabolism and Investigation Unit, Maimonides Biomedical Research Institute of Cordoba (IMIBIC), Reina Sofia University Hospital, University of Cordoba, 14004 Cordoba, Spain
    Escuela Universitaria de Osuna (Centro Adscrito a la Universidad de Sevilla), 41640 Osuna, Spain)

  • Julián Campos-Pérez

    (Department of Food Science and Technology, Rabanales University Campus, University of Cordoba, 14071 Cordoba, Spain)

  • M Ángeles Vilches-Redondo

    (Department of Nursing, Pharmacology and Physiotherapy, Faculty of Medicine and Nursing, University of Cordoba, 14071 Cordoba, Spain)

  • Fernando Mata

    (Centro de Estudios Avanzados en Nutrición (CEAN), 14010 Cordoba, Spain
    Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain)

  • Ainoa Navarrete-Pérez

    (Neuroplasticity and Oxidative Stress, Maimonides Biomedical Research Institute of Córdoba (IMIBIC), University of Córdoba, 14004 Cordoba, Spain)

  • Antonio Ranchal-Sanchez

    (Department of Nursing, Pharmacology and Physiotherapy, Faculty of Medicine and Nursing, University of Cordoba, 14071 Cordoba, Spain
    Maimonides Biomedical Research Institute of Cordoba (IMIBIC), University of Cordoba, 14004 Cordoba, Spain)

Abstract

A great deal of evidence has been gathered on the use of creatine as an ergogenic supplement. Recent studies show greater benefits when creatine ingestion is performed close in time to training, but few studies tackle the way that circadian rhythms could influence creatine consumption. The aim of this study was therefore to observe the influence circadian rhythms exert on sports performance after creatine supplementation. Our method involved randomly assigning fourteen women players of a handball team into two groups in a single-blind study: one that consumed the supplement in the morning and one that consumed it in the evening, with both groups following a specific training program. After twelve weeks, the participants exhibited a decreased fat percentage, increased body weight and body water, and improved performance, with these results being very similar in the two groups. It is therefore concluded that, although circadian rhythms may influence performance, these appear not to affect creatine supplementation, as creatine is stored intramuscularly and is available for those moments of high energy demand, regardless of the time of day.

Suggested Citation

  • Jose Manuel Jurado-Castro & Julián Campos-Pérez & M Ángeles Vilches-Redondo & Fernando Mata & Ainoa Navarrete-Pérez & Antonio Ranchal-Sanchez, 2021. "Morning versus Evening Intake of Creatine in Elite Female Handball Players," IJERPH, MDPI, vol. 19(1), pages 1-11, December.
    • Handle: RePEc:gam:jijerp:v:19:y:2021:i:1:p:393-:d:714820
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    References listed on IDEAS

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    1. Amanda M. Dumar & Anna F. Huntington & Rebecca R. Rogers & Thomas J. Kopec & Tyler D. Williams & Christopher G. Ballmann, 2021. "Acute Beetroot Juice Supplementation Attenuates Morning-Associated Decrements in Supramaximal Exercise Performance in Trained Sprinters," IJERPH, MDPI, vol. 18(2), pages 1-11, January.
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