What are muscles that you think about using?

* Biceps brachii: This muscle is located on the front of the upper arm and is responsible for flexing the elbow joint.

* Triceps brachii: This muscle is located on the back of the upper arm and is responsible for extending the elbow joint.

* Pectoralis major: This muscle is located on the chest and is responsible for adducting and medially rotating the arm.

* Latissmus dorsi: This muscle is located on the back and is responsible for adducting, extending, and internally rotating the arm.

* Quadriceps femoris: This muscle is located on the front of the thigh and is responsible for extending the knee joint.

* Hamstrings: These muscles are located on the back of the thigh and are responsible for flexing the knee joint.

* Gluteus maximus: This muscle is located on the buttocks and is responsible for extending the hip joint.

* Erector spinae: These muscles are located on the back and are responsible for extending the spine.

* Abdominal muscles: These muscles are located on the front of the abdomen and are responsible for flexing the spine.