K205 Lab 3 (Ch. 8 Hip & Pelvis)

Indiana University School of Public Health – Kinesiology K205 Structural Kinesiology Lab #3 Hip and Pelvis (Reference: Chapter 8 in Text) Name: ______________________________________________ Lab Section: __________________ Work with your partner/group to locate the following bones and bony landmarks on the anatomical models. ILIUM Iliac crest Iliac spines:  ASIS (anterior superior)  AIIS (anterior inferior)  PSIS (posterior superior)  PIIS (posterior inferior) Iliac fossa Greater sciatic notch ISCHIUM Ischial tuberosity Lesser sciatic notch Obturator foramen PUBIS Pubic symphysis FEMUR Head Neck Greater trochanter Lesser trochanter DISCUSSION What is the difference between the two ball-and-socket joints of the body? What structural components of the hip joint make it more stable? Find your ASIS (anterior hip) and hold them steady - try lifting your leg (hip flexion). Repeat with different hip movements while allowing pelvis to freely move. The thigh is divided into 3 compartments. Name the 3 compartments of the thigh, list the muscles in each compartment, and the action of these muscles at the HIP . COMPARTMENT MUSCLES RESPONSIBLE FOR WHICH ACTION AT HIP Anterior Rectis femoris, sartorius, pectineus, iliosoas Hip Flexion Hip extension

Posterior Bíceps femoris, semitendinosas, semimembranosas, gluteus maxiumus Medial Adductor magnus, brevis longus, gracillis Adductor of hip Demonstrate each of the following movements with your partner/group and list the plane & axis of movement, PRIMARY muscle(s) responsible for the movement, and an example of an activity that utilizes this movement. HIP ABDUCTION (Hip opening) Plane of Movement : frontal Axis of Movement: sagittal Agonists : tensor fasciae latea, sartorius, gluteus medius, gluteus minimus Example : movement of femur in the frontal plane laterally away from midline HIP ADDUCTION Plane of Movement: frontal Axis of Movement: sagittal Agonists: adductor longus, adductor magnus, adductor brevis, gracillis Example: movement of femur in frontal plane medially towards midline HIP FLEXION Plane of Movement: sagittal Axis of Movement: frontal Agonists: rectus femoris, sartorius, pectineus, iliopsoas Example: Movement of your anterior femur towards anterior pelvis- knee raise HIP EXTENSION Plane of Movement: sagittal Axis of Movement: frontal Agonists : biceps femoris, semitendinosos, semimembranosos, gluteus maximus Example: Posterior femur towards posterior pelvis - kicking back leg HIP INTERNAL ROTATION Plane of Movement: transverse Axis of Movement : longitudinal Agonists : Semi tendinosos, semimembranosus, gluteus medius, gluteus minimus Example: lateral rotary movement towards midline - knees and toes inward HIP EXTERNAL ROTATION Plane of Movement: transverse Axis of Movement : longitudinal Agonists: sartorius, gluteus maximus, iliopsoas, bicep femoris, adductor magnus, adductor brevis Example: knees and toes out - Lateral rotary movement away from midline