Fig. 1
From: Contemporary Variables that Impact Sleep and Development in Female Adolescent Swimmers and Gymnasts
Contemporary independent variable impacting sleep and the potential dependent physiological variables [7, 11, 15, 22,23,24,25,26,27,28]. Sleep is broadly indicated in this diagram to include the complex physiological mechanisms that occur as a result of sleep debt. Research by Lo et al. in Hong Kong investigating volleyball, handball, football, and basketball in adolescent athletes found variables such as academics, caffeine consumption, and light were factors in poor sleep quality [11]