Adductor 5 & Satorius

Overview of the Adductor Group

• The adductor group consists of muscles responsible for the adduction of the thigh.

• Key focus on five portions of the adductor muscles.

• Discussion of the sartorius muscle and its role in relation to the adductors.

Adductor Muscles and Their Function

• Dwight demonstrates the adductor machine, emphasizing that excessive focus on adductors may not be beneficial.

• Suggestion that time in the gym would be better spent on abduction exercises.

General Anatomy

• Examination of the anatomy of the pubic area and ischium:

  • Superior ramus of the pubis includes:

    • Pubis tubercle

    • Pubic symphysis

  • Inferior ramus of the pubis connects to the ischial tuberosity.

• Importance of these areas for identifying muscle origins.

• Adductor magnus attaches to the adductor tubercle at the femur base.

  • Tenderness can be felt when palpating the tendon in this area.

Insertion Points and Palpation

• Linear aspera lines on the back of the femur serve as insertion points for many adductor muscles.

• The pectineus also attaches here.

• Discussion of physical palpation techniques.

• Identification of different parts of the hip joint anatomy, including:

  • Ilium (purple area)

  • Pubis (pink area)

  • Ischium (ischial bones)

• Overview of rectus abdominis attachment areas in the pubic region, aiding in locating muscle origins.

Muscle Origins and Overlapping Layers

• Importance of understanding muscle origins for diagnosing conditions like abductor strains.

• Muscle origins are organized from anterior to posterior:

  • Highlighting how origins overlap and are layered.

• Clarity on palpation and muscle identification techniques.

Specific Adductor Muscles

• Details of the following muscles:

  • Adductor Magnus: Major player in adduction with broader dynamic functions based on hip position.

  • Gracilis: Unique for crossing the knee joint, which allows for knee flexion.

  • Pectineus: Located at the superior margin of the pubis, observable during movement.

  • Adductor Longus: Palpated easily; its position becomes distinct during specific leg movements.

  • Adductor Brevis: Found beneath the adductor longus.

Sartorius Muscle

• Known as the "cobbler's muscle", it's the longest muscle in the body.

• Runs from the ASIS down to medial tibia and influences several movements, including:

  • Hip flexion

  • Lateral rotation

  • Medial knee movement via insertion at pes anserinus.

Interaction of Muscles

• Three muscles insert into the pes anserinus in layered order:

  • Sartorius (most anterior)

  • Gracilis

  • Semitendinosus (most posterior)

• Discussion on pes anserinus bursitis, especially in populations with knee osteoarthritis.

Actions of the Adductor Group

• Understand muscle actions through origin and insertion knowledge:

  • Medial rotation occurs due to muscle alignment with the femur.

  • Each adductor has a specific role in limb movement

• Sartorius’ movements are unique due to its origin site above the hip joint and dual joint action.

Anatomical Connections and Landmarks

• Adductor triangle or femoral triangle palpation:

  • Relationship to femoral artery placement.

  • Description of adductor longus' location relative to other structures.

• Mention of notable figure for adductor flexibility, Jean-Claude Van Damme, used humorously to summarize the importance of flexibility in the adductor muscle group.

Conclusion

• The adductor group plays a critical role in lower limb movement and understanding their anatomy is essential for proper training and rehabilitation.