Effects of two nights partial sleep deprivation on an evening submaximal weightlifting performance; are 1 h powernaps useful on the day of competition? - Brotherton, Ellis J.; Moseley, Sarah E.; Langan-Evans, Carl; Pullinger, Samuel A.; Robertson, Colin M.; Burniston, Jatin G.; Edwards, Ben J. (Chronobiology International: The Journal of Biological & Medical Rhythm Research, 2019)