heupbuigers

Heupbuigers (hip flexors) are a group of muscles that generate flexion at the hip joint. In Dutch anatomical usage, the term refers to several muscles that raise the thigh toward the torso and help stabilize the pelvis during standing and movement. The primary hip flexor is the iliopsoas, a combination of the psoas major and the iliacus. Other muscles commonly considered hip flexors include the rectus femoris, sartorius, tensor fasciae latae, and pectineus.

Anatomy: The iliopsoas consists of the psoas major and iliacus, which merge and attach to the lesser trochanter of the femur. The rectus femoris originates from the anterior inferior iliac spine and crosses both the hip and knee. The sartorius runs from the anterior superior iliac spine to the pes anserinus on the tibia. The tensor fasciae latae arises from the anterior iliac crest and inserts into the iliotibial tract. The pectineus originates near the pubic bone and attaches along the femur.

Function: These muscles produce flexion of the hip, bringing the thigh toward the abdomen. They also assist with anterior pelvic tilt and, for muscles that cross the knee, contribute to knee flexion to varying degrees. They are actively engaged in walking, running, kicking, and climbing stairs.

Clinical relevance: Tightness or strain of the hip flexors can result from prolonged sitting, rapid acceleration in sports, or overuse. Common issues include hip flexor strains and friction in the hip region. Management typically involves rest during the acute phase, followed by gradual loading, targeted stretching, and strengthening, with attention to maintaining balance with the glutes and core to prevent recurrence.