Muscular strength:

the maximal ability of a muscle to generate force.

Muscular endurance:

the ability of a muscle to generate force

 over and over again.

Muscle movements:

1.Flexion: to decrease the angle of the joint.

2.Extension: to increase (extend) the angle of the joint.

3.Adduction: movement toward (add) the midline of the body.

4.Abduction: movement away (abduct -take away) from the midline of the body.

5.Rotation: movement around the vertical axis of the body.

 Flexadabro

Atrophy:

a decrease in muscle fiber size.

Hypertrophy:

 an increase in muscle fiber size.

Isometric:

 refers to muscle contractions in which muscular tension is developed BUT no movement of a body part

 Isotonic:

refers to muscle contractions in which there IS movement of a body part.

Concentric:

isotonic muscle contractions that result in muscles shortening.

Eccentric:

isotonic contractions in which the muscle exerts force while the muscle lengthens.

Agonist:

prime mover.

Antagonistic:

the muscle on the opposite side of the joint you're working.

Repetition:

refers to one complete movement of an exercise.

Set:

 refers to some number of repetitions performed consecutively.

Valsalva maneuver:

holding breath during an intense muscle contraction, which can reduce blood flow to the brain and cause dizziness or fainting.