искривление шейного отдела позвоночника
To sit it is necessary on sciatic bones. And not simply to sit, and to balance on these bones. In an ideal the back should not lean{base} on спинку a chair, is especial if спинка not vertical. Low armchairs with "позвоночной" the points of view in general very harmful. The flat seat of a chair should be shorter than a hip that the edge{territory} of a chair did not press on an artery under коленями. The height from a seat up to a floor should бытьтакой that hips settled down in parallel a floor. It is not necessary to put a leg{foot} on a leg{foot}. Подробнее...
Research of a normal muscle consists in an estimation of force, a tone, трофики and volume of movements in a joint at participation of one muscle or group of muscles. These receptions are well-known in classical neuropathology, the description of them is not included into our problem{task}. Our purpose - an estimation of its{her} linear characteristics. Clearly, that its{her} this function is not independent, she{it} is necessary for us for the characteristic of a reserve of spatial changes of a muscle. Подробнее...