Movement Analysis - Specific Main Movements

Question 1

Knee flexion and Knee extension

Answer 1

Flexion:
- quadriceps and hamstrings
- isotonic concentric contraction of the hamstrings
- hamstrings originate on the femur, inserting and pulling the tibia closer to the femur.

Extension:
- quadriceps and hamstrings
- isotonic concentric contraction of the quadriceps
- quadriceps originate on the femur, inserting and pulling the tibia down and away from the femur.

Question 2

Elbow flexion and Elbow extension

Answer 2

Flexion:
- biceps and triceps
- isotonic concentric contraction of the biceps
- biceps originate on the humerus, inserting and pulling the radius closer to the humerus.

Extension:
- biceps and triceps
- isotonic concentric contraction of the triceps
- triceps originate on the humerus, inserting and pulling the radius down and away from the humerus.

Question 3

Ankle plantar flexion and Ankle dorsi flexion

Answer 3

Plantar flexion:
- gastrocnemius and tibialis anterior
- isotonic concentric contraction of the gastrocnemius
- gastrocnemius originates on the femur and tibia, inserting and pulling the calcaneus upwards.

Dorsi flexion:
- gastrocnemius and tibialis anterior
- isotonic concentric contraction of the tibialis anterior
- tibialis anterior originates on the tibia, inserting and pulling the metatarsals upwards.

Question 4

Hip flexion and Hip extension

Answer 4

Flexion:
- hip flexors and gluteals
- isotonic concentric contraction of the hip flexors
- hip flexors originate on the pelvis, inserting on and pulling the femur upward.

Extension:
- hip flexors and gluteals
- isotonic concentric contraction of the gluteals
- gluteals originate on the pelvis, inserting on and pulling the femur downward.

Question 5

Hip abduction and Hip abduction

Question 6

Shoulder flexion and Shoulder extension

Answer 6

Flexion:
- pectorals and latissimus dorsi
- isotonic concentric contraction of the pectorals
- pectorals originate on the ribs, and insert on the humerus pulling it upwards and across the body.

Extension:
- pectorals and latissimus dorsi
- isotonic concentric contraction of the latissimus dorsi
- latissimus dorsi originate on the rear of the ribs and pelvis, and insert on the humerus pulling it down to the side of the body.

Question 7

Shoulder abduction and Shoulder adduction

Answer 7

Abduction:
- deltoids and latissimus dorsi
- isotonic concentric contraction of the deltoids
- deltoids originate on the clavicle and scapula, and insert on the humerus pulling it up and out from the side of the body.

Adduction:
- deltoids and latissimus dorsi
- isotonic concentric contraction of the latissimus dorsi
- latissimus dorsi originate on the rear of the ribs and pelvis, and insert on the humerus pulling it down to the side of the body.