What Nerves Affect the Quad Muscle? The Muscles Worked During Calf Raises Location of the Hamstring Muscle Stretches for a Clicking Hip Causes of Nerve Pain in the Hip & Leg Do Lunges Strengthen Hamstrings? What Muscles Does the Seated Leg Press Exercise Machine Work? What Muscles Do Squats Target? What Is Magnesium Aspartate? 5 Things You Need to Know About Thigh Muscle Strain Popliteal Muscle Rehabilitation Exercises What Are the Names of the Muscles in the Arm & Shoulder? What Are the Causes of Chronic Knee and Leg Pains? How to Roast & Bake a Smoked Ham Hock Falafel Nutrition Information Exercises for Correcting Nerve Tension in the Spine Outer Hip Stretches Popliteal Aneurysm Symptoms Peroneal Tenosynovitis Symptoms Stretches for the Erector Spinae
The rectus femoris is one of the four quadriceps muscles -- the quadriceps are the major muscle group of the front of the upper leg. The rectus femoris attaches to the anterior inferior -- the part toward the feet -- portion of the iliac crest and runs to the base of the patella, also known as the knee. The femoral nerve supplies the rectus femoris with nerves. This is the only muscle that crosses the hip joint, which enables it to work as a hip flexor and a knee extender muscle.
In the case of a weak or under-active psoas or iliacus, the femur may move above the level of the hip but it is not from the action of the psoas and iliacus but rather from the momentum created by the other three hip flexors. With this knowledge in hand, I believe that our knowledge of back pain, “hip flexor strains,” and ‘quad pulls” is drastically expanded. Before we discuss specific injuries let’s first look at how to assess the function of the psoas and iliacus.

Located deep in the front of the hip and connecting the leg, pelvis, and abdomen, the hip flexors— surprise, surprise— flex the hip. But despite being some of the most powerful muscles in our bodies (with a clearly important role), it’s easy to neglect our poor hip flexors— often without even knowing it. It turns out just working at a desk all day (guilty!) can really weaken hip flexors since they tend to shorten up while in a seated position. This tightness disrupts good posture and is a common cause of lower back pain. Weakened hip flexors can also increase the risk of foot, ankle, and knee injuries (especially among runners) Hip muscle weakness and overuse injuries in recreational runners. Niemuth, P.E., Johnson, R.J., Myers, M.J., et al. Rocky Mountain University of Health Professions, Provo, VT. Clinical Journal of Sport Medicine, 2005 Jan; 15 (1): 14-21.. So be sure to get up, stand up every hour or so! And giving the hip flexors some extra attention is not just about injury prevention. Adding power to workouts, working toward greater flexibility, and getting speedier while running is also, as they say, all in the hips The effect of walking speed on muscle function and mechanical energetics. Neptune, R.R., Sasaki, K., and Kautz, S.A. Department of Mechanical Engineering, The University of Texas, Austin, TX. Gait & Posture, 2008 Jul; 28 (1): 135-43..
Working in the pelvic region is not easy for many therapists and clients. There are cautions and borders that need to be addressed and talked through before addressing these muscles. There are emotional and comfort aspects about working in the lower pelvic region. Some clients find this area too personal or private to allow the therapist's hands in this area. Other considerations are the internal organs such as the intestines, uterus, kidneys, and bladder. As the iliacus and psoas travel under the inguinal ligament and insert into the lesser trochanter of the femur, there is also the femoral triangle, which needs to be worked around. Body positioning can be useful to help access these muscles in a less invasive way while protecting the comfort of the client.
My exercise of choice here is floor-slide mountain climbers. You will need some furniture moving pads, Valslides, or something similar that will slide smoothly on your floor. Paper plates even work well in a pinch. Put your feet on the sliders and move into a push-up position. To perform the movement, simply pull one knee at a time up toward your chest, going as high as you can while keeping your foot on the slider. You can alternate legs with each rep or do sets of one leg at a time. Don't expect it to be easy.

How to: Lie on your back with your right knee bent and foot flat on the floor (a). With your left leg fully extended, press into your right foot to shift onto your left hip. This is your starting position (b). Then, squeeze your right glutes to press your left hip open until you feel a stretch, pause, then return to start. That’s one rep (c). Perform six to eight reps, then repeat on the opposite side.

What Nerves Affect the Quad Muscle? The Muscles Worked During Calf Raises Location of the Hamstring Muscle Stretches for a Clicking Hip Causes of Nerve Pain in the Hip & Leg Do Lunges Strengthen Hamstrings? What Muscles Does the Seated Leg Press Exercise Machine Work? What Muscles Do Squats Target? What Is Magnesium Aspartate? 5 Things You Need to Know About Thigh Muscle Strain Popliteal Muscle Rehabilitation Exercises What Are the Names of the Muscles in the Arm & Shoulder? What Are the Causes of Chronic Knee and Leg Pains? How to Roast & Bake a Smoked Ham Hock Falafel Nutrition Information Exercises for Correcting Nerve Tension in the Spine Outer Hip Stretches Popliteal Aneurysm Symptoms Peroneal Tenosynovitis Symptoms Stretches for the Erector Spinae

4. Just swing it. For the front-to-back hip swing stretch, lie on the left side with hips stacked, propped up on the left elbow. Bend the left leg to a 90-degree angle and raise the right leg to hip level with toes pointed. Keep abs tight and swing the right leg all the way in front, then swing it all the way to the back, squeezing the booty along the way. Switch sides.


Widen your knees ever so slowly until you feel a stretch in your inner thighs. Make sure your ankles are in line with your knees, your hips stacked over your knees, and your feet and calves should be grounded and toes pointed out. Relax your shoulders, and if you’re able to, lower down to your forearms. If you have a yoga block, resting your chest on it will help you release your hips.

The iliopsoas is another powerful hip flexor that begins in two distinct regions proximally. The iliacus has a broad origin, arising from the inner table of the iliac wing, the sacral alae, and the iliolumbar and sacroiliac ligaments. The psoas originates at the lumbar transverse processes, the intervertebral discs, and the adjacent bodies from T12 to L5, in addition to the tendinous arches between these points. Distally, the two large muscular bodies converge to become one distinct structure—the iliopsoas—and subsequently jointly insert at the lesser trochanter of the proximal femur. The nerve to the iliopsoas (i.e., the anterior division of L1 to L3) supplies the iliopsoas muscle.
The pectineus is an accessory hip flexor. This short muscle originates from the front of the pelvis, crosses the hip joint and inserts near the top of the thighbone. In addition to hip flexion, the pectineus works with other muscles to move your thigh inward. The pectineus may be involved in groin strains, which occur commonly among players of sports that require rapid acceleration and position changes.

Some stretching basics: you should feel a stretch, but not pain. If it really hurts, contact a physical therapist and figure out what’s really wrong. If your hip flexors are truly tight, a few weeks of doing these stretches should help you feel better! You should notice relief, so if you’re not, you may have something else wrong besides “tightness,” or you might need to address what you’re doing the other 23 hrs and 50 minutes of each day.


When a muscle contracts, it shortens. Take the biceps for example. Without getting too technical, the biceps are attached at the forearm and shoulder. When your biceps contract, they shorten and bring those two points closer together. When you rest, the muscle returns to its normal length, and the two points move farther away. Constantly contracting your biceps over a long period of time would cause them to get shorter, even at rest.
If you suffer from tight hips, I’ve compiled the best stretches and exercises to help you get the relief you need! Whether your hips are tight from sitting all day or from killing your last workout, these hip flexor stretches should help you get some relief. Tight muscles can potentially be shortened, and tight hips might mean your abs are weak or you have some instability in your back. Let’s stretch these babies out and help you work to get balanced and feeling better!
This stretch targets the abductors and deeply opens the hips and groin while lengthening the hamstrings. Lie on your back with your legs straight. Keeping your right leg straight, extend it up to your side, reaching hold of your ankle with your right hand. Continue to pull your leg higher up to your right side, into a half-split pose. Hold this position for 30 seconds before releasing and attempting with the opposite leg.
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