
Hip flexor strains are a common injury, especially among athletes. They are caused by tears in the muscle tissue of the hip flexors, which are the muscles that run across the bottom of the abdomen and down the top of the hips. The iliopsoas is the body's most important hip flexor, and it can be injured by overuse or eccentric hip flexion against resistance. Sitting for long periods of time can also contribute to tight hip flexors and cause the pelvis to tilt. To treat a hip flexor strain, it is recommended to rest, apply ice, and use compression to reduce blood flow to the injured muscle.
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What You'll Learn

Hip flexor strain is a common injury, especially among athletes
Athletes in sports that involve repetitive stop-and-start movements, especially quick starts or pivoting movements, are particularly vulnerable to hip flexor strain injuries. Sports that commonly cause hip flexor strains include soccer, football, hockey, martial arts, and dance. In addition, people who sit for long periods throughout the day are at risk of hip flexor strain due to shortened and tightened hip flexor muscles.
Hip flexor strain can range from mild overstretching to complete muscle tears. Common symptoms include pain in the front of the hip, groin pain, upper thigh pain, weakness, stiffness, muscle spasms, and reduced function. The severity of a hip flexor strain is classified into three grades: Grade 1 (mild) involves minor stretching or microscopic tears with mild discomfort and slight stiffness; Grade 2 (moderate) involves a partial muscle tear, resulting in moderate pain, swelling, and difficulty walking or lifting the leg; Grade 3 (severe) involves a complete rupture of the muscle fibres, often accompanied by severe pain, bruising, and loss of function, which may require surgical intervention.
Treatment for hip flexor strain typically involves the RICE method: Rest, Ice, Compression, and Elevation. Most hip flexor strains can be managed conservatively without surgery, and at-home treatments such as ice, rest, and over-the-counter medicine are often sufficient for recovery. However, it is important to refrain from intense physical activities or exercises that stress the hips and legs during the recovery period to prevent re-injury.
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Iliopsoas is the body's most important hip flexor
The iliopsoas is a group of muscles that compose the hip flexor, located at the top of the thigh. It includes the iliacus muscle, the psoas major muscles, and the rectus femoris. The iliopsoas is the body's most important hip flexor and is responsible for allowing the leg to flex inwards towards the hips and providing stability to the hip.
The hip flexors are activated during daily activities such as walking, getting in and out of cars, and even putting on shoes and socks. Sitting for long periods can shorten and tighten the hip flexor muscles, tilting the pelvis and changing the way a person walks. This can lead to functional problems such as anterior pelvic tilt and lumbar hyperlordosis.
Hip flexor injuries are common, especially among athletes, and can be extremely painful, making day-to-day tasks difficult. Strains, tears, tendinosis, and bursitis of the iliopsoas muscle can all present similarly. Overuse or eccentric hip flexion against resistance is often the cause of these issues. Symptoms of an iliopsoas strain or tear may include groin and/or proximal medial thigh pain, exacerbated by actively flexing the hip against resistance, and pain with passive extension of the hip.
To diagnose a hip flexor injury, doctors will typically perform a physical examination and ask about the patient's medical history, daily activities, and how the injury occurred. Diagnostic tests such as X-rays, MRIs, or CT scans may also be ordered to rule out other injuries to the hip region or pelvis. Treatment for hip flexor strains and low-grade tears often involves rest, ice, and physical therapy to learn proper stretching and strengthening techniques. More severe injuries may require surgical intervention.
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Sitting for long periods can shorten and tighten hip flexor muscles
When you sit for long periods, your hip flexor muscles are kept in a shortened position. Over time, they adapt and tighten up. This can lead to muscle knots and cramps in your hip, glute, and low back. Sitting for long periods can also cause stiffness and pain, especially in the lower back, neck, and hips. This happens because sitting for too long puts strain on the spine and cuts off blood to the muscles. The muscles tighten and grow tired, and posture suffers.
Tight hip flexors can make it harder to rotate the pelvis and may contribute to other problems such as low back pain. There is evidence to show a link between prolonged sitting and tight hips, and between tight hip flexors and lumbar instability in adults with low back pain. However, the cause is not simple, and the data are often weak. It is hard to tell whether sitting or lack of movement is to blame for tight hip flexors.
To relieve tightness and discomfort in the hip flexors, you can try some simple stretches. One stretch involves kneeling with your hands at your sides, then putting your right leg in front of you with the knee bent at a 90-degree angle and the foot flat on the floor. Another stretch is to bend your right leg and place your hands behind your knee, gently pulling your leg towards your chest. Hold the stretch for 10 to 30 seconds, then repeat on the other side.
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Hip flexor exercises can strengthen and stretch the muscles
The hip flexors are a group of muscles that include the iliacus, psoas major, rectus femoris, and sartorius. These muscles are responsible for flexing the hip, or bringing the leg upward toward the body. The primary hip flexors are the psoas major and the iliacus, which collectively are often called the iliopsoas. The iliopsoas is the body's most important hip flexor and is responsible for stabilizing the trunk during activities such as lifting, pushing, and pulling.
People who sit for long periods throughout the day tend to have shorter hip flexor muscles, which can lead to functional problems such as anterior pelvic tilt and lumbar hyperlordosis. Additionally, athletes who repeatedly use their hip flexors, such as runners and bikers, are prone to tight hip flexors. To prevent these issues, it is important to keep the hip flexors supple and mobile through regular stretching and strengthening exercises.
Bridge Exercise:
- Lie on your back with your arms at your sides, knees bent, and feet on the floor, hip-distance apart.
- Try to position your feet so your fingers can touch your heels.
- While squeezing your glutes, press into your heels and lift your hips off the floor toward the ceiling.
- Hold the position for a few seconds before returning to the starting position, then repeat several times.
Lunges:
- Lunges work the lead glute and quad muscles, including the rectus femoris, which is also a hip flexor.
- They also stretch the hip flexors on the rear leg, which have to lengthen depending on how far you step forward.
Standing Leg Lift:
- From a standing position, bend your right knee and lift your upper leg up towards the sky.
- Balance on your left foot while keeping your right knee and thigh at hip level for about 30 seconds.
- Lower your right leg slowly, then repeat with your left leg.
Squat Rack or Doorway Exercise:
- Lie down on your back and position yourself with one foot resting on a squat rack or doorway, and the other leg straight.
- Your thigh should be positioned so your hip is just past a 90-degree angle towards your chest.
- Begin to contract your deep hip flexors by lightly driving your knee towards your chest, lifting your foot away from the rack or doorway.
- At the same time, your other leg should counteract the motion by straightening and pressing down hard into the ground.
Kneeling Hip Flexor Stretch:
- Begin by kneeling on the floor with your right leg in front of you, forming a 90-degree angle with your knee bent and your foot flat on the floor.
- Leave your left knee on the floor, with your shin pointing straight back.
- Slowly and gently pull your foot with your right hand, bringing your leg around behind you while keeping your pelvis tucked under.
- You should feel a stretch in the front of your thighs and your right hip flexor.
It is important to listen to your body and adjust the exercises as needed. If you are experiencing any pain or discomfort, consult with a healthcare professional or a physiotherapist who can guide you through a safe and effective routine.
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Hip flexor tightness can be relieved with stretches
Hip flexor tightness is a common problem, especially for those who sit for long periods or are very active. Sitting for extended periods can cause hip flexor muscles to shorten and tighten, while athletes may overuse their hip flexors, leading to tightness and even tears in the muscle fibres.
Hip flexor tightness can cause discomfort, pain, and muscle spasms, and in more serious cases, can make walking difficult. It can also lead to imbalances that result in back, hip, or knee pain.
To relieve hip flexor tightness and prevent these issues, stretching and strengthening the hip flexors are essential. Here are some specific stretches that can help:
- Lie on your stomach on a mat with your hips flat on the surface. Keep your hip and thigh down as you bend one knee and gently pull the heel towards your buttocks. Use your hand, an exercise band, or a towel to assist, but avoid pulling too hard. Hold this stretch for about 20 seconds, then switch sides.
- Sit on the floor with your right leg in front, bent at a 90-degree angle, so the bottom of your foot faces the left wall. Extend your left leg out to the side, also bent at a 90-degree angle, with the bottom of your foot facing behind you. Square your shoulders towards the front and keep your back straight. For a deeper stretch, lean your chest forward without collapsing your upper body or losing contact between your hips and the floor. Repeat on the other side.
- Stand with your feet hip-width apart and toes forward. Bend your right knee and bring your right heel up towards your buttocks. You can use your hand to assist. Slowly and gently pull your foot with your right hand, bringing your leg behind you while keeping your pelvis tucked under. Be careful not to arch your back. You should feel the stretch in the front of your thighs and your right hip flexor. Repeat on the other side.
In addition to these stretches, it is important to take regular breaks from sitting and move around. Walking is particularly beneficial, and getting up to walk for a few minutes every 30-45 minutes can help keep your hip flexors loose.
If you experience sharp, intense, or persistent hip pain, it is important to consult a doctor before attempting any stretches.
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Frequently asked questions
A hip flexor strain is an injury to one or more of your hip flexors, the muscles where your thigh meets your hip. Strains are tears in the muscle tissue that occur when muscle fibres are stretched beyond their limit.
Symptoms of a hip flexor strain include groin and/or proximal medial thigh pain, which is exacerbated by actively flexing the hip against resistance.
Most hip flexor strains can be treated at home using the RICE method: Rest, Ice, Compression, and Elevation.
To prevent hip flexor strain, you can try exercises that strengthen the hip flexors, such as lunges, glute bridges, and crunches.











































