Of or involving muscular contraction against resistance in which the length of the muscle changes. Antonym is isometric. Isotonic movements are either concentric (working muscle shortens) or eccentric (working muscle lengthens). See also
relating to or characterized by the equal intervals of the well-tempered scale; "isotonic tuning"
of or involving muscular contraction in which tension is constant while length changes
of or involving muscular contraction in which tension is constant while length changes (used of solutions) having the same or equal osmotic pressure of two or more muscles; having equal tension relating to or characterized by the equal intervals of the well-tempered scale; "isotonic tuning
Relating to isotonicity or isotonia Having equal tension; denoting solutions possesing the same osmotic pressure; more specifically, limited to situations in which cells can neither swell nor shrink