Baadjou Vera A E, van Eijsden-Besseling Marjon D F, Samama-Polak Ans L W, Smeets Rob J E M, Passos Valéria Lima, Westerterp Klaas R
Department of Rehabilitation Medicine, Maastricht University Medical Centre, MD Maastricht, The Netherlands.
Med Probl Perform Art. 2011 Dec;26(4):218-23.
Body posture appears to influence fatigue and musculoskeletal complaints in musicians. Our aim was to determine energy expenditure and to investigate whether energy expenditure is affected by body posture in brass and woodwind instrumentalists.
Eighteen musicians (10 women, 8 men; 6 brass, 12 woodwinds), with a mean age of 39 ± 14 years and mean body mass index of 23.8 ± 4.9 kg/m², played their instruments for 30 minutes twice: once in nonoptimized body posture (posture A), and once in a posture according to the postural exercise therapy method Mensendieck (posture B). Patients were randomized to the order of postures in a crossover design AB/BA. Playing sessions were preceded and followed by 60 minutes of rest. Energy expenditure was measured in a respiration chamber with indirect calorimetry. Basal metabolic rate was measured with a ventilated hood.
Mean metabolic equivalents (MET) for playing a wind instrument in the sitting position in a nonoptimized posture and posture according postural exercise therapy were 1.69 (SD 0.18) and 1.80 (SD 0.22), respectively. Percent change between resting metabolic rate and total energy expenditure while playing was 32% (95% CI 25-39%) in posture B and 23% (95% CI 17-30%) in posture A (p = 0.021).
Average physical activity while playing a wind instrument approximates 1.8 MET. Our data show an association between energy expenditure and body posture while playing a brass or woodwind instrument: playing a musical instrument in a posture according to postural exercise therapy leads to higher energy expenditure as compared to a nonoptimized body posture. These results suggest that fatigue and the general feeling of lack of energy after playing a musical instrument are not related to actual higher energy expenditure.
身体姿势似乎会影响音乐家的疲劳和肌肉骨骼不适。我们的目的是确定能量消耗，并调查铜管乐器和木管乐器演奏者的能量消耗是否受身体姿势影响。
18名音乐家（10名女性，8名男性；6名铜管乐器演奏者，12名木管乐器演奏者），平均年龄39±14岁，平均体重指数23.8±4.9kg/m²，两次演奏乐器30分钟：一次采用非优化身体姿势（姿势A），一次采用根据门森迪克姿势运动疗法的姿势（姿势B）。患者在交叉设计AB/BA中随机分配姿势顺序。演奏前和演奏后休息60分钟。在呼吸室内用间接测热法测量能量消耗。用通风罩测量基础代谢率。
在非优化姿势和根据姿势运动疗法的姿势下坐着演奏管乐器时，平均代谢当量（MET）分别为1.69（标准差0.18）和1.80（标准差0.22）。姿势B下演奏时静息代谢率与总能量消耗之间的百分比变化为32%（95%可信区间25-39%），姿势A下为23%（95%可信区间17-30%）（p=0.021）。
演奏管乐器时的平均身体活动近似于1.8MET。我们的数据显示，演奏铜管乐器或木管乐器时能量消耗与身体姿势之间存在关联：与非优化身体姿势相比，按照姿势运动疗法的姿势演奏乐器会导致更高的能量消耗。这些结果表明，演奏乐器后的疲劳和普遍的能量不足感与实际较高的能量消耗无关。
