dance kinesiologythe_hip

1、Kinesiology: The HipDone by: Si Yi & Aaron ChongThe hip1. The anatomy of the hip2. The differences between the male and female hip3. Bone Structure Joint and ligaments Muscles surrounding the hip PregnancyPelvisAnatomy of the Hip made up of 2 hips irregularly shaped bone3 layers of the hip: bones an

2、d joints ligaments of the joint capsule tendons and musclesBonesPelvic / Coxal bone / Hip bone one side of the hipIlium broad, flaring portion of the pelvis largest part of the hipPubis lower, posterior part of the pelvicIschium one of the bones thatBones (continued)Anterior Superior iliac spine poi

3、nted ending of iliac crestGreater sciatic notch invert towards the boneIschial spine pointed area right under greater sciatic notchIschial tuberosity flat area right below the ischial spineObturator foramen the hole beside ischial tuberosityBones and JointAcetabulum the socketFemur thigh bone longes

4、t boneFemoral head ball of the femurHip Joint Ball and Socket joint Possible movements Flexion & Extension Lateral Abduction & Adduction Internal Rotation & External Rotation Example of activities Walking Squatting Stair climbingLigaments of Hip JointLigaments connective tissue that connects one bon

5、e to another bone2 ligaments connect the femur and the pelvis Iliofemoral Pubo femoralCartilage of Hip JointCartilage tough, elastic connective tissueAcetabular Labrum a ring of cartilage that surrounds the acetabulum deepen the acetabulum to prevent femoral head fromslipping out of place (a.k.a Sub

6、luxation)Subluxation partial dislocationTendonsTendon connective tissue that connects muscle to boneIliotibal band long tendon band runs alongside the femur from the hip to the knee connecting point for several hip muscles tight iliotibial band can cause hip and knee problemsIIiopsoas made up of pso

7、as major, psoas minor and iliacus muscleMuscles begins in the lowback and pelvis connects on the inside edge of the upper femur flexionTensor Fasciae Latae flexion abductionMusclesRectus Femoris one of the fourquariceps muscles originate in the pelvis flexionPectineus begins from upper front of the

8、pubic bone adduction transverseadduction flexionGluteus MaximusMuscles largest among the three gluteal muscles makes up a large portion of the shape and appearance of the buttocks extension external rotation adduction transverse abductionGluteus MediusMuscles broad, thick muscle, on the outer surfac

9、e of the pelvis abduction transverse abduction internal rotation external rotationGluteus Minimus fanshaped abduction transverse abduction internal rotationGracilisMuscles begins from lower pubic body, near the pubic symphesis thin and flattened one of the hamstring muscles, on the medial side of th

10、e thigh adduction transverse adductionHormonal ChangesPregnancy Progesterone and Relaxin released causes relaxing and stretching of muscle tissues, ligaments,and jointsChange in Body Structure and Posture gap between 2 pubic points at the symphysis pubis joint widens by2-3mm stretched and softened l

11、igaments put strain on other pelvicjoints causing discomfort awkward posture in bending, walking and sittingDifferences between male and female pelvicCommon problemsTrochanteric Bursitis/ Greater Trochanteric Pain Syndrome pain over the side of hip Inflammation of trochanteric bursaePossible Causes

12、overuse structural imbalance of the lumbar spine muscular imbalances in the hip and/or pelvis leg length discrepancy lateral snapping hipCommon problemsSnapping Hip Usually painless and harmless Possible Causes occur as a muscle or tendon passes over a bony structure2 kinds of snapping hip Lateral s

13、napping hip most common form generally involves movement of the IT Band over the greater trochanter Anterior snapping hip usually the iliopsoas tendon passes over a bonyprominence on the front of the pelvis or the femurCommon problemsIliacus Tendinitis inflammation of the iliopsoas muscle can also a

14、ffect the bursa located underneath the tendon of the iliopsoas muscleIliopsoas syndrome stretch, tear or complete rupture of the iliopsoas muscle and / or tendon pain experience in front of hip, near groinPossible Causes overuse can affect modern dancers more often due to increased emphasis on hip f

15、lexion and internal rotationTreatmentPossible treatments for the above mentioned problems Consult a Physcian If experienced acute pain and inflammation, ice and anti inflammatory medications could reduce pain and swelling May have to reduce activities until symptoms decrease Stretching and/or streng

16、thening programs could be beneficialCommon problemsHip Pointer Acute pain bruise or tear in the abdominal muscles that connects to the iliac crestPossible Causes blow, a fall, or a quick twist or turn of the bodyTreatment Rest Ice Compression ElevationCommon problemsFemoral Stress Fracture pain in t

17、he groin, hip girdle, or anterior thigh especially during internal rotation of the hip or turn-in more serious but not as commonPossible Causes Repeated training with faulty technique or muscle imbalanceX- ray or bone scan needed to confirm the diagnosis Treatment depends on severity of injury, might require a break fromCommon problemsOsteoarthritis pain in joints with many activities including walking, ascending stairs and at rest inflammation and degenerative