1. Rotation: a circular movement of an object around a center (or point) of rotation. A three-dimensional object rotates always around an imaginary line called a rotation axis.
2. Elbow Joint:Three bones form the elbow joint: the humerus of the upper arm, and the paired radius and ulna of the forearm
3. Plantar Flexion:the movement which increases the approximate 90 degree angle between the front part of the foot and the shin, as when depressing an automobile pedal
4. Extension:movement of a joint that results in increased angle between two bones or body surfaces at a joint.
5. Flexion:Bending movement that decreases the angle between two parts
6. Force: any influence which tends to change the motion of an object
7. Frontal Plane: any plane dividing the body into front and back
8. Pelvic Girdle: the irregular ring-shaped bony structure connecting the spine to the femurs
9. Hip Flexors:a group of skeletal muscles that act to flex the femur
10. Hip Rotators: group of muscles that act to rotate the hip
11.Knee Joint:joins the thigh with the leg and consists of two articulations: one between the femur and tibia, and one between the femur and patella
12. Shoulder Girdle: set of bones which connects the upper limb to the axial skeleton on each side
13. Triceps: It is the muscle principally responsible for extension of the elbow joint (straightening of the arm).
14. Adducted:motion that pulls a structure or part towards the midline of the body, or towards the midline of a limb
15. Everts: the movement of the sole of the foot away from the median plane
16. Depress:Movement in an inferior direction
17. Center of Gravity: he mean location of all the mass in a system
18.Sternum:long flat bony plate shaped like a capital "T" located anteriorly to the heart in the center of the thorax (chest).
19. Biceps Brachii:The biceps has several functions, the most important being to rotate the forearm (supination) and to flex the elbow
20. Brachialis: a muscle in the upper arm that flexes the elbow joint