Weight Lifting, Weight Training, Bench Press & Bodybuilding
January 16, 2019
Muscular System - Hip Flexor Muscles

About Your Bicep Muscles

The Iliopsoas actually consists of two muscles: the Iliacus and the Psoas Major. Together, they are known as the Iliopsoas.

The Iliacus originates on the pelvic crest and attaches on the femur.

The Psoas Major, the longer of the two muscles, originates on the lumbar vertebrae and attaches to the femur.

Not shown in this picture is the Rectus Femoris. It is one of the four Quadriceps muscles and the only one that crosses the hip joint. This crossing of the hip joint enables it to operate as a hip flexor as well as a knee extensor (straightening the knee).

Overdeveloped and tight hip flexors can contribute to lower back pain by causing the pelvis to tilt forward. To counteract this, you must stretch the hip flexors and strengthen the Abdominal muscles. This will reduce pelvic tilt and decrease lower back pain. Strengthening the lower back can also help improve the balance between the muscles of the hip region.

Hip Flexors MusclesHip Flexors Muscle Functions

The function of the Iliopsoas is hip flexion, which means bringing the thigh up towards the abdomen. The hip flexors are also active when the abdomen is being moved towards the thighs, e.g. sit-ups

The muscle anatomy descriptions and picture on this page were provided courtesy of Nick Nilsson.





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