In hyperactive children the arms must first be restrained by holding them tight in our hands. Montessori Elementary Materials Maria Montessori We must stimulate the apathetic and the sluggish; we must moderate the hyperactive; we must correct paresis, tics, etc.
Isotonic contractions are those which cause the muscle to change length as it contracts causing movement. There are two types of isotonic contraction: -. Concentric. A concentric contraction is a type of muscle contraction in which the muscles shorten while generating force.
isotonic contraction. muscle contraction without appreciable change in the force of contraction; the distance between the muscle's origin and insertion becomes lessened. isotonic dehydration. occurs when the fluid lost is isotonic with serum, as in sweating, simple enteritis, nephrosis.