Design of Back Length Adjustable Dental Chair Suited for Horizontal Head Posture Treatment
نویسندگان
چکیده
منابع مشابه
The Effects of Chair Design On Back Muscle Fatigue
The electromyographic activity of the paraspinal muscles at four levels were examined to investigate the effects of chair sitting on muscle activation patterns and muscle fatigue. The Balans, Nada-Chair Back Up, and Standard Office Chair were studied. Twenty four subjects were asked to engage in a seated writing task for 10 minutes for each of three chairs. Prior to the first writing period and...
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چکیده ندارد.
15 صفحه اولClinical effectiveness of a Pilates treatment for forward head posture
[Purpose] This study compared the effects of pilates and an exercise program on the craniovertebral angle, cervical range of motion, pain, and muscle fatigue in subjects with a forward head posture (FHP). [Subjects and Methods] A total of 28 sedentary females (age 20 to 39 years) with FHP were randomly assigned to pilates (n=14) and combined (n=14) exercise groups. The study was a randomized, c...
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deployable scissor type structures are composed of the so-called scissor-like elements (sles), which are connected to each other at an intermediate point through a pivotal connection and allow them to be folded into a compact bundle for storage or transport. several sles are connected to each other in order to form units with regular polygonal plan views. the sides and radii of the polygons are...
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ژورنال
عنوان ژورنال: The Japanese Journal of Ergonomics
سال: 2011
ISSN: 0549-4974,1884-2844
DOI: 10.5100/jje.47.209