Contraction The shortening and lengthening of a muscle that occurs while performing an exercise. Cut Up A body that carries very little fat and is highly muscled. Definition A term that describes a muscle that is highly developed, the shape of which is clearly visible. A cut up muscle. A one-handed barbell.
Dumbbells are shorter and generally of a lighter weight than barbells.
In weight training, the individual movements performed during a routine. In general, the movements required to complete a workout. Being unable to complete a movement because of fatigue. Fatigue Physical weariness resulting from exertion. The ability of a bone joint or muscle to stretch.