Antagonistic Muscle Action Flashcards

1
Q

Agonist

A

(Prime Mover)
> The contracting muscle that is responsible for the movement taking place.

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2
Q

Antagonist

A

> The muscle that relaxes to allow the movement to take place.
(by opposing the agonist to prevent overstretching).

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3
Q

Fixator

A

(Stabiliser)
> The muscle that stabilises a joint by eliminating any unwanted movement at the joint.

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4
Q

Synergist

A

(Helper)
> Works with the agonist by supporting its action - (by neutralising any unwanted movement at the joint, and assisting to agonist to perform the desired movement.

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5
Q

Flexion of the arm at the elbow

A

Agonist = Bicep Brachii
Antagonist = Tricep Brachii

e.g. Upwards phase of a bicep curl

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6
Q

Extension of the arm at the elbow

A

Agonist = Tricep Brachii
Antagonist = Bicep Brachii

e.g. Downwards phase of a bicep curl

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7
Q

Flexion of the leg at the knee

A

Agonist = Hamstring Group
Antagonist = Quadricep group

e.g. Preparing to kick a football

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8
Q

Extension of the leg at the knee

A

Agonist = Quadricep Group
Antagonist = Hamstring Group

e.g. Follow through after kicking a football

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9
Q

Flexion of the leg at the hip

A

Agonist = Psoas Major
Antagonist = Gluteus

e.g. Long jump (flight phase)

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10
Q

Extension of the leg at the hip

A

Agonist = Gluteus
Antagonist = Psoas Major

e.g. Preparing to kick a football

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11
Q

Dorsi-flexion of the foot at the ankle

A

Agonist = Tibialis Anterior
Antagonist = Gastrocnemius

e.g. Leading foot in hurdles

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12
Q

Planter-flexion of the foot at the ankle

A

Agonist = Gastrocnemius
Antagonist = Tibialis Anterior

e.g. Pike jump in trampolining

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13
Q

Horizontal flexion of the arm at the shoulder

A

Agonist = Pectoralis

e.g. Release phase of a discus throw

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14
Q

Horizontal extension of the arm at the shoulder

A

Agonist = Trapezius

e.g. Preparation phase of a discus throw

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15
Q

Abduction of the arm at the shoulder

A

Agonist = Deltoid

e.g. Outward movement of a star jump/breaststroke

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16
Q

Adduction of the arm at the shoulder

A

Agonist = Latissimus Dorsi

e.g. Inward movement of a star jump/breaststroke