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 origin and insertion becomes lessened. lengthening contraction eccentric contraction.postural contraction the state of muscular tension and contraction that just suffices to maintain the posture of the body. segmental c's muscular contractions of the small intestine that serve to mix and transport chyme. shortening contraction concentric contraction.sotonic contraction muscle contraction without appreciable change in the force of contraction; the distance between the origin and insertion becomes lessened. lengthening contraction eccentric contraction.