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1Department of Internal Medicine, Chonnam National University Medical School, Gwangju, Korea.
2Department of Internal Medicine, Seoul National University College of Medicine and Seoul Metropolitan Government Seoul National University Boramae Medical Center, Seoul, Korea.
Copyright © 2018 Korean Endocrine Society
This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
CONFLICTS OF INTEREST: No potential conflict of interest relevant to this article was reported.
Type | Description | Examples |
---|---|---|
Isometric RE | A static contraction of muscle against external resistance without change in its length or joint motion | Yoga poses such as Plank or the Warrior variations, side bridge, hundred breaths exercise, pushing against a fence |
Isotonic RE | A dynamic exercise against resistance as a muscle lengthens or shortens through the available range of motion | |
- Concentric contraction: an active muscle undergoes shortening while overcoming external resistance | Contraction of biceps curl with fixed weight | |
- Eccentric contraction: an active muscle undergoes lengthening while being overcome by an external resistance | Extension of quadriceps during knee bend | |
Isokinetic RE | An active exercise in which a muscle or group of muscles contracts against a controlled accommodating resistance that is moving at a constant angular velocity | Fitness machines (e.g., stationary bike, bench press machine, bent-over row), dynamometer |
RE, resistance exercise.