Requiring oxygen. Aerobic Metabolism occurs during low-intensity, long-duration exercises like running.
Anaerobic
Without oxygen. Anaerobic metabolism in muscle tissue occurs during intense physical activities like weight lifting or sprinting.
Concentric
The lifting phase of an exercise, when the muscle shortens or contracts.
Eccentric
The lowering phase of an exercise, when the muscle lengthens.
Energy
The capacity to do work.
Intensity
A measure of how much force or energy is put forth during a task.
Repetition
The number of times you lift and lower a weight in one set of an exercise.
Resistance Exercise
Training with weights or using your body to resist a force.
Rest period
The amount of time you allow between sets and exercises.
Set
Group of repetitions of an exercise after which you take a brief rest period.
Abduct
Movement of any extremity away from the midline of the body. this action is achieved by an abductor muscle.
Adduct
Movement of an extremity toward the midline of the body. this action is achieved by an adductor muscle.
Extension
Action of straightening of a joint as achieved by an extensor muscle.
Flexion
Motion of bending a joint as achieved by a flexor muscle.
Pronation
In the foot, it is a combination of motions resulting in a position such that the foot is abducted and everted. In the hand, pronation is movement of the forearm into a palm down position.
Supination
Movement of the forearm into a palm-up position.
External Rotation
Lateral movement of a joint or extremity to the outside.
Internal Rotation
Rotation of a joint of extremity medially, to the inside.
