%0 Journal Article %T Focus: Clocks and Cycles: Actigraphy-based Sleep Parameters and Rest-activity Circadian Rhythm in a Young Scoliotic Patient Treated with Rigid Bracing: A Case Study %A Francesco Negrini %A Giulia Rebagliati %A Giuseppe Banfi %A Jacopo A. Vitale %A Luca Giacomelli %A Sabrina Donzelli %J Archive of "The Yale Journal of Biology and Medicine". %D 2019 %X The correct expression of circadian rhythmicity, together with a good sleep behavior, are key factors for the body homeostasis. Rest-activity circadian rhythms (RARs) are involved in the control of the sleep-wake cycle and altered RARs could lead to a compromised health status. Therefore, we aimed to investigate the existence of RAR and to study actigraphy-based sleep behavior in a 14-year-old male patient affected by severe idiopathic scoliosis and treated with a rigid brace 23 hours per day. RAR and sleep parameters were studied through actigraphy for seven consecutive days in July 2018. The mean cosinor analysis revealed the presence of a significant RAR (p < 0.001), specifically: the percentage of rhythm was 23.4%, the mean MESOR was 84.6 Activity Count (AC), the amplitude registered a mean value of 74.4 AC¡¯s, and the acrophase occurred at 17:56 h. The subject reached a good sleep quantity: 507.9 ¡À 30.2 minutes of Time in Bed with a mean Total Sleep Time of 450.7 ¡À 20.1 minutes; Similarly, Sleep Efficiency was equal to 83.3 ¡À 7.2% and the Fragmentation Index was 27.3 ¡À 12.8%. We observed that both RAR and sleep behavior had normal trends in a 14-year-old patient treated with a rigid brace for a severe adolescent idiopathic scoliosis (AIS). Improved assessment of sleep in routine clinical practice can help to identify and manage health-related problems that could potentially affect some clinical outcomes, such as pain, mood state, and recovery process %K Brace %K scoliosis %K sleep %K circadian rhythm %K orthopedics %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6585518/