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Understanding the Hip and Pelvic Floor Study Guide

This guide explores the fundamental biomechanics of the hip joint, covering its role in absorbing forces, maintaining stability during stance, and the implications for movement and daily activities. It delves into concepts such as hip moments, joint compression, and the function of key muscles like the gluteus medius and minimus. Essential for understanding mobility, fall risk, and occupational performance.

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Structure, Biomechanics, and Kinematics of the Hip Complex

Anatomy and Biomechanics of the Hip Complex

This content describes the structural features, articular surfaces, and weight-bearing mechanisms of the hip complex including the femur and acetabulum.

  • Hip complex structural features
  • Osteokinematics and arthrokinematics
  • Acetabulum and lunate surface
  • Femoral head and acetabulum
  • Angle of inclination
  • Angle of torsion
  • Coxa valga and coxa vara
  • Articular capsule and capsular ligaments
  • Ligamentum teres
  • Trabecular systems
  • Weight-bearing stress lines
  • Head, Arms, and Trunk (HAT) forces
  • Ground reaction forces (GRF)

Hip Joint Function and Osteokinematics

The hip joint is a ball and socket joint designed for stability and mobility through open chain and closed chain movements of the femur and pelvis.

  • Hip joint motion
  • Open chain vs closed chain movements
  • Hip stability vs mobility
  • Acetabulum and labrum function
  • Degrees of freedom
  • Osteokinematics
  • Arthrokinematics
  • Close-pack and loose-pack positions
  • Femoral acetabular impingement
  • Pelvic obliquity
  • Trendelenburg gait
  • Pelvifemoral motion

Muscles and Movements of the Pelvis and Hip

Muscles and Movements of the Pelvis and Hip

This document examines the pelvic floor layers, hip joint musculature, and functional roles of muscles in stability, movement, and gait.

  • Levator ani muscles
  • Hip joint musculature
  • Inversion of function
  • Open chain function
  • Closed chain function
  • Active insufficiency
  • Hip flexors
  • Hip extensors
  • Hip abductors
  • Hip adductors
  • Hip rotators
  • Trendelenburg gait
  • Single-limb stability
  • Pelvic stability

Hip Biomechanics and Function in Stance

Hip Biomechanics and Function in Stance

Analysis of hip function in bilateral and unilateral stance, including hip loading, pelvic stability, and biomechanical moments during occupation.

  • Bilateral stance
  • Unilateral stance
  • External hip extension moment
  • External hip adduction moment
  • Internal hip abduction moment
  • Pelvic stability
  • Hip joint compression
  • Descending forces
  • Ascending forces
  • Postural sway
  • Hip abductors
  • Hip adductors

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