Workouts

Workouts

Contributors in Workouts

Workouts

Muscles that run upward and inward from the hip bones to the lower ribs, allowing you to rotate and bend at the waist. These are located underneath the external obliques. These muscles are used when ...

Intervals

Fitness; Workouts

Speed workouts, usually run on a track, with distances and target paces decided before you run. They typically consist of relatively short sprints of 220 yards to 1 mile interspersed with rest ...

Isokinetic contraction

Fitness; Workouts

A dynamic method of muscle training where the speed of movement is held constant by a training device. No matter whether you exert a little force or all-out force, speed stays the same. Often used in ...

Isometric contraction

Fitness; Workouts

A muscular contraction where the associated joints don't move, for example if you have to hold a heavy object in one place by contracting your biceps. This is a static action because there is no ...

Isometrics

Fitness; Workouts

Exercise or a system of exercises in which opposing muscles are so contracted that there is little shortening but great increase in tone of muscle fibres involved.

Isotonic contraction

Fitness; Workouts

A dynamic muscular contraction used in common weight-training exercises where the muscle moves the limb through a range of motion while contracted. Normally called dynamic training or contractions.