isometrics

noun

iso·​met·​rics ˌī-sə-ˈme-triks 

plural in form but singular or plural in construction

: exercise or a system of exercises in which opposing muscles are so contracted that there is little shortening but a great increase in tone of muscle fibers involved

Examples of isometrics in a Sentence

Recent Examples on the Web

Seemingly simple isometrics are a great way to really burn out your legs at the end of a workout. —Women's Health, 3 Feb. 2023

Throughout the Space Age, the researchers say in their report, resistance exercises — from isometrics and squats to lunges and bench presses — have been a staple of back pain prevention. —Alex Orlando, Discover Magazine, 31 Jan. 2023

Strength training can also be done using isometrics (a type of static contraction where the muscle doesn't change length) or eccentric contractions (a type of muscle contraction where the muscle lengthens under load). —Amber Smith, Discover Magazine, 12 Oct. 2022

Word History

First Known Use

1962, in the meaning defined above

Kids Definition

isometrics

singular or plural noun

iso·​met·​rics ˌī-sə-ˈme-triks 

: exercise or a system of exercises in which force is applied to an unmoving object (as a wall) so that opposing muscles are contracted with little shortening of muscle fibers and no movements of joints

Medical Definition

isometrics

noun, plural in form but singular or plural in construction

iso·​met·​rics ˌī-sə-ˈme-triks 

: isometric exercise or an isometric system of exercises