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.
A muscle contraction that produces less tension than the amount of resistance is an eccentric contraction. The muscle elongates as it contracts.There are studies that support the idea that training with eccentric contractions result in greater strength gains. muscle contraction that produces less tension than the amount of resistance is an eccentric contraction. The muscle elongates as it contracts.