Exercise, isotonic

Exercise when a contracting muscle shortens against a constant load, as when lifting a weight. Isometric exercise is one method of muscular exercise. In contrast, isotonic exercise is when muscular contractions occur without movement of the involved parts of the body. Isotonic comes from the Greek "iso-", equal + "tonos", tone = maintaining equal (muscle) tone. The muscle maintains equal tone while shortening in isotonic exercise.

Medical dictionary. 2011.

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  • Isotonic, exercise — Exercise when a contracting muscle shortens against a constant load, as when lifting a weight. Isotonic exercise is one method of muscular exercise. In contrast, isometric exercise is when muscular contractions occur without movement of the… …   Medical dictionary

  • Exercise, isometric — Exercise involving muscular contractions without movement of the involved parts of the body. Isometric exercise is one method of muscular exercise. In contrast, isotonic exercise occurs when a contracting muscle shortens against a constant load,… …   Medical dictionary

  • Isotonic — The term isotonic may refer to; * Isotonic muscle exercise and Weight training * Isotonic (exercise physiology) for the term associated with muscle contraction * An isotone in nuclear physics * Isotonic solutions, solutions that have equal… …   Wikipedia

  • Isotonic (exercise physiology) — In an isotonic contraction, tension rises and the skeletal muscle s length changes. Lifting an object off a desk, walking, and running involve isotonic contractions.There are two types of isotonic contractions: (1) concentric and (2) eccentric.… …   Wikipedia

  • exercise — 1. Active: bodily exertion for the sake of restoring the organs and functions to a healthy state or keeping them healthy. 2. Passive: motion of limbs without effort by the patient. isometric e. e. consisting of muscular contractions without… …   Medical dictionary

  • isotonic exercise — noun exercise in which opposing muscles contract and there is controlled movement (tension is constant while the lengths of the muscles change) the classic isotonic exercise is lifting free weights • Hypernyms: ↑exercise, ↑exercising, ↑physical… …   Useful english dictionary

  • isotonic — i|so|ton|ic [ ,aısə tanık ] adjective 1. ) an isotonic drink or other liquid replaces substances that your body needs but has lost, for example because you have done a lot of physical exercise 2. ) used for describing a type of exercise in which… …   Usage of the words and phrases in modern English

  • isotonic — UK [ˌaɪsəʊˈtɒnɪk] / US [ˌaɪsəˈtɑnɪk] adjective 1) an isotonic drink or other liquid replaces substances that your body needs but has lost, for example because you have done a lot of physical exercise 2) used for describing a type of exercise in… …   English dictionary

  • isotonic exercise — 1. exercise or a program of exercises to increase muscular strength, power, and endurance based on lifting a constant amount of weight at variable speeds through a range of motion. 2. any specific exercise of this type. * * * …   Universalium

  • isotonic — 1. Relating to isotonicity or isotonia. 2. Having equal tension; denoting solutions possessing the same osmotic pressure; more specifically, limited to solutions in which cells neither swell nor shrink. Thus, a solution that is isosmotic with… …   Medical dictionary

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