Institute of Human Sciences, University of Wolverhampton, Walsall, United Kingdom of Great Britain and Northern Ireland.
Research Centre for Sport, Exercise and Performance, University of Wolverhampton, Coventry, United Kingdom of Great Britain and Northern Ireland.
Int J Sports Med. 2020 Jun;41(6):373-379. doi: 10.1055/a-1083-6539. Epub 2020 Feb 11.
Fatigue and overwork have been cited as the main cause of injury with the dance profession. Previous research has shown a difference in workload between professional dancers of different rank, but the role of sex has not been examined. The purpose of this study was to determine workload intensity, rest, and sleep profiles of professional ballet dancers. 48 professional ballet dancers (M=25, F=23) took part in an observational design over 7-14 days using triaxial accelerometer devices. Minutes in METS at different intensities, total time asleep and rest breaks were analysed. Significant main effects for rank (p<0.001) and rank by sex (p=0.003) for total PA, working day activity, post work activity and sleep. Sleep ranged between 2.4-9.6 h per night. All participants spent more time between 1.5-3 METS outside of work. Significant amounts of exercise where carried out outside of their work day, therefore when injury is reported per 1000 h dance activity, this extra-curricular activity might need to be included. When looking at potential causes of injury in dance, a global perspective of physical activity is required that includes activity outside of work and sleep patterns, all activities that influence physiological recovery.
疲劳和过度劳累被认为是舞蹈行业受伤的主要原因。以前的研究表明，不同级别的职业舞者之间的工作量存在差异，但性别因素尚未得到检验。本研究旨在确定专业芭蕾舞演员的工作量强度、休息和睡眠状况。48 名专业芭蕾舞演员（男性=25 名，女性=23 名）参加了一项为期 7-14 天的观察性设计，使用三轴加速度计设备。分析了不同强度下的代谢当量分钟数、总睡眠时间和休息时间。排名（p<0.001）和性别排名（p=0.003）对总 PA、工作日活动、工作后活动和睡眠有显著的主要影响。睡眠时间在每晚 2.4-9.6 小时之间。所有参与者在工作时间之外的 1.5-3 METS 之间花费的时间更多。大量的运动是在工作时间之外进行的，因此，当每 1000 小时舞蹈活动报告受伤时，可能需要包括这些课外活动。在研究舞蹈受伤的潜在原因时，需要从全球角度考虑身体活动，包括工作之外的活动和睡眠模式，所有这些活动都会影响生理恢复。
