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There are two types of isotonic contractions: (1) concentric and (2) eccentric. In a concentric contraction, the muscle tension rises to meet the resistance, then remains the same as the muscle shortens. In eccentric, the muscle lengthens due to the resistance being greater than the force the muscle is producing. [citation needed]
An isometric exercise is an exercise involving the static contraction of a muscle without any visible movement in the angle of the joint. The term "isometric" combines the Greek words isos (equal) and -metria (measuring), meaning that in these exercises the length of the muscle and the angle of the joint do not change, though contraction ...
List of medical abbreviations: Overview; List of medical abbreviations: Latin abbreviations; List of abbreviations for medical organisations and personnel; List of abbreviations used in medical prescriptions; List of optometric abbreviations
Depiction of smooth muscle contraction. Muscle contraction is the activation of tension-generating sites within muscle cells. [1] [2] In physiology, muscle contraction does not necessarily mean muscle shortening because muscle tension can be produced without changes in muscle length, such as when holding something heavy in the same position. [1]
Pronunciation follows convention outside the medical field, in which acronyms are generally pronounced as if they were a word (JAMA, SIDS), initialisms are generally pronounced as individual letters (DNA, SSRI), and abbreviations generally use the expansion (soln. = "solution", sup. = "superior").
The origin of a muscle is the bone, typically proximal, which has greater mass and is more stable during a contraction than a muscle's insertion. [14] For example, with the latissimus dorsi muscle, the origin site is the torso, and the insertion is the arm. When this muscle contracts, normally the arm moves due to having less mass than the torso.
Abbreviation Meaning 131 I or I131: iodine-131 (aka radioactive iodine or radioiodine) IA: intra-arterial: intra-articular: IAA: insulin autoantibody IABP: intra-aortic balloon pump: IAI: intra-amniotic infection: IBC: inflammatory breast cancer: IBD: inflammatory bowel disease: IBS: irritable bowel syndrome: IC: ileocecal: immunocompromised ...
Push-ups and their derivatives (including handstand), pull-ups (or chin-ups), Supine row and dips, concentrate on a co-contraction of the triceps, biceps, deltoids, pectorals, lats, abdominals and lower back for stabilization in various ratios depending upon angle and leverage.