On Neck Muscle Activity and Load Reduction in Sitting Postures: An Electromyographic and Biochemical Study with Applications in Ergonomics and Rehabilitation |
Common terms and phrases
Arborelius arm suspension attachment frame angled Cerv erect spin cervical erector spinae cervical erector spinae/trapezius cervical spine positions Chaffin Clinical Biomechanics Ekholm elbow support electrodes electromyographic EMG activity EMG levels EMG recording EMG/moment relationships ergonomic aids flexed lower-cervical spine flexed neck flexion Hagberg Harms-Ringdahl isometric neck extension isometric test contractions Jonsson Kinesiology Levator scap levator scapulae levator scapulae muscles level of activity longissimus cervicis lower-cervical spine position maximum isometric neck neck and shoulder neck position neck-and-shoulder muscles normalized EMG Parametric statistics posterior neck muscles reduced rhomb Scand J Rehab Schüldt semispinalis capitis shoulder muscles sitting posture slightly flexed position slightly inclined backward spinal motion segment splenius splenius capitis sternocleidomastoid muscle supraspinatus TAMP Thor erect spin thoracic erector spinae thoracic erector spinae/rhomboids tion Trapez p desc Trapez p transv trapezius pars descendens trapezius pars transversa/supraspinatus trunk slightly inclined upper-cervical spine vertical and straight whole spine flexed whole spine vertical