Dear Colleagues,

Most researchers interested in studying the effects of fatigue on sports performance usually measure fatigue as the absence of energy (i.e., if you are fatigued then you are not energetic). However, recent evidence suggests that energy and fatigue are two biologically distinct unipolar moods, with their own mental and physical characteristics. Furthermore, studies that have examined energy and fatigue as two separate constructs suggest that feelings of energy contribute to motivations to get things done, while feelings of fatigue help us decide when a rest period is needed in order to avoid fatigue-induced errors and injuries. While these findings were explored in healthy young adults, they have not yet been studied in a sports setting.

This research topic calls for submissions that help to identify biomechanical, physiological, immunological, psychological and epigenetic factors associated with feelings of energy or fatigue alone or both moods simultaneously. We invite researchers who examine interventions that influence feelings of energy or fatigue separately, or both simultaneously, in a sports performance setting. Researchers can explore different interventions (i.e., sleep, exercise, and drugs) that modify these moods, when measured as two separate moods, to help identify how these moods influence sports performance. We invite original research, case reports, reviews, systematic reviews, and meta-analyses to this Special Issue.

Dr. Ali Boolani
Guest Editor

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• fatigue
• energy
• biomechanical
• immunological
• psychological
• moods
• sport