Based on the provided reference, here are 7 major muscle groups of the body. Note that these are categories of muscles rather than individual muscles.
Major Muscle Groups of the Body
The reference provided gives the major muscle groups as:
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Trunk Rotators: These muscles are responsible for the rotation of the spine.
- Example: When you twist your torso.
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Trunk Flexors: These muscles enable you to bend forward at the waist.
- Example: Abdominal muscles that are involved in doing sit-ups.
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Trunk Extensors: These muscles enable you to extend or straighten your spine.
- Example: Muscles of the lower back involved in maintaining posture.
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Lateral Flexion Muscles: These muscles facilitate sideways bending of the torso.
- Example: Leaning towards your left or right side.
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Hip Flexors and Adductors: These muscles are responsible for lifting the leg forward (hip flexion) and drawing the leg towards the midline of the body (adduction).
- Example: Muscles used in running and kicking.
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Hip Extensors and Abductors: These muscles are responsible for moving the leg backward (hip extension) and drawing the leg away from the midline of the body (abduction).
- Example: Muscles used in walking and climbing stairs.
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Shoulders: This group encompasses the muscles that control the movement of the shoulder joint, including the muscles responsible for lifting, rotating and moving the arm.
- Example: Deltoid, rotator cuff muscles
Muscle Group | Function |
---|---|
Trunk Rotators | Rotate the spine |
Trunk Flexors | Bend forward at the waist |
Trunk Extensors | Straighten the spine |
Lateral Flexion Muscles | Bend the torso to the side |
Hip Flexors & Adductors | Lift the leg forward & draw it towards the midline |
Hip Extensors & Abductors | Move the leg backward & away from the midline |
Shoulders | Control arm movement |
These muscle groups are fundamental for movement, stability, and overall physical function. Understanding their roles can improve your understanding of exercise and movement.