Muscle contractions

• what are the two main types of muscle contraction?


  isotonic and isometric
• what are the two types of isotonic contraction?


  concentric and eccentric
• What is a concentric contraction?


  shortening of muscle- weighted downward movement
• what is an eccentric contraction?

  lengthening of a muscle
• what is the agonist?


  the muscle that is contracting
• what is the antagonist?

  the muscle that is relaxing
• hamstrings and quadriceps
• what is the antagonist muscle pair at the elbow?

  bicep and tricep
• what is the antagonist muscle pair at the hip?


  gluteals and hip flexors
• what is the antagonist muscle pair at the ankle?

  tibialis anterior and gastrocnemius
• what is the antagonist muscle pair at the shoulder?

  latissimus dorsi and deltoid
• during concentric contraction what is the agonist during flexion at the knee?

  hamstrings
• during concentric contraction what is the antagonist during flexion at the knee?


  quadriceps
• during concentric contraction what is the agonist during extension at the knee?

  quadriceps
• during concentric contraction what is the antagonist during extension at the knee?

  hamstrings
• during concentric contraction what is the agonist during flexion at the elbow?

  biceps
• during concentric contraction what is the antagonist during flexion at the elbow?


  triceps
• during concentric contraction what is the agonist during extension at the elbow?

  triceps
• during concentric contraction what is the antagonist during extension at the elbow?

  biceps
• during concentric contraction what is the agonist during flexion at the hip?

  hip flexors
• during concentric contraction what is the antagonist during flexion at the hip?

  gluteals
• during concentric contraction what is the agonist during extension at the hip?

  gluteals
• during concentric contraction what is the antagonist during extension at the hip?

  hip flexors
• during concentric contraction what is the agonist during plantar flexion at the ankle?


  gastrocnemius
• during concentric contraction what is the antagonist during plantar flexion at the ankle?

  tibialis anterior
• during concentric contraction what is the agonist during dorsiflexion at the ankle?

  tibialis anterior
• during concentric contraction what is the antagonist during dorsiflexion at the ankle?

  gastrocnemius
• during concentric contraction what is the agonist during flexion at the shoulder?

  deltoid
• during concentric contraction what is the antagonist during flexion at the shoulder?

  latissimus dorsi
• during concentric contraction what is the agonist during extension at the shoulder?

  latissimus dorsi
• during concentric contraction what is the antagonist during extension at the shoulder?

  deltoid
• during concentric contraction what is the agonist during abduction at the shoulder?

  deltoid
• during concentric contraction what is the antagonist during abduction at the shoulder?

  latissimus dorsi
• during concentric contraction what is the agonist during adduction at the shoulder?

  deltoid
• during concentric contraction what is the antagonist during adduction at the shoulder?

  latissimus dorsi
• during eccentric contraction what happens to the muscle that is the antagonist?


  it becomes the agonist during the eccentric contraction and the muscle swaps with what it should usually be