Twenty-one asymptomatic adults used foam pillows of 3 different heights (1: 5 cm, 2: 10 cm, and 3: 14 cm). Comfort was assessed using a 100-mm visual analog scale. Electromyographic activity was assessed in the lateral position. We calculated the root mean square (RMS) in 500-millisecond windows of bilateral EMG activity of the sternocleidomastoid and upper and middle trapezius, normalized by maximal isometric contraction of each individual.
There were no statistical differences between pillows 2 and 3 in any muscle activity. Height 2 was considered the most comfortable (P < .001) compared with heights 1 and 3, and height 1 the least comfortable (P < .001) compared with the other heights.
Références bibliographiques :
Sacco IC et al. The Effect of Pillow Height on Muscle Activity of the Neck and Mid-Upper Back and Patient Perception of Comfort. J Manipulative Physiol Ther. 2015 Jul 21. pii: S0161-4754(15)00079-2. doi: 10.1016/j.jmpt.2015.06.012. Article sous presse.
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