When I do a deep knee bend like a sumo squat I get a popping in the outside of my left knee. It feels like a big tendon or ligament is slipping per something. It isn’t painful peer se but I’m afraid if I do it a lot it will be. Is that a relatively common symptom for a guy with tight flexors, it bands, etc? Should I just push through it or have it checked out?

Mike, I cannot thank you enough for this instruction on stretching the hip flexor muscle. Over the past three years, my driving has increased dramatically. It is not uncommon for me to drive 1,000 business miles or more each week. I have always been very fit, but now, in my early 50’s, I am finding that it is easier to get “wracked up” by things like excessive driving.
Please note that none of the above given tips or recommendations substitute medical advice. Important: consult a health professional in case of an injury or if you suspect overuse of joints or a medical condition such as a fracture. A physician should be consulted in those acute cases when the condition is accompanied by reddening, swelling or hyperthermia of joints, ongoing joint trouble or severe pain and/or are associated with neurological symptoms
I am a science writer and a former Registered Massage Therapist with a decade of experience treating tough pain cases. I was the Assistant Editor of ScienceBasedMedicine.org for several years. I’ve written hundreds of articles and several books, and I’m known for readable but heavily referenced analysis, with a touch of sass. I am a runner and ultimate player. • more about me • more about PainScience.com
The side of the pain on its own doesn’t tell us much, and most of the one-sided sources of pain are viscera that usually cause abdominal pain instead of back pain, or in addition to it. In other words, the only reason to worry about right or left lower back pain is if it is otherwise worrisome: if you have other red flags or significant non-back symptoms.
Often you’ll perform static stretches seated or lying down, and focus on breathing slowly and deeply to facilitate relaxation — sometimes for several minutes at a time. Static stretches can be very effective at loosening you up, but they also inhibit performance in the stretched muscles for a short time afterward. So they’re best reserved for after a workout, or as an anytime stress reliever — just not right before a workout involving the muscles you’re stretching.
Yuri Elkaim is one of the world’s most trusted health and fitness experts. A former pro soccer player turned NYT bestselling author of The All-Day Energy Diet and The All-Day Fat Burning Diet, his clear, science-backed advice has transformed the lives of more than 500,000 men and women and he’s on a mission to help 100 million people by 2040. Read his inspiring story, “From Soccer to Bed to No Hair on My Head” that started it all.
While you can’t choose where the weight comes off, you can eventually slim your hips so long as you stay consistent in your training. Cardiovascular exercise can help you lose some fat, but strength training serves a twofold purpose, burning fat while developing muscle for all-over tightening. “The more you build a muscle, the more [that part of the body] is going to firm up,” Braun says.
A pinched nerve in the hip or back can cause radiating lower back and hip pain. If you wonder what does nerve pain feel like – it often involves severe pain and numbness that may be referred from other areas of the body. For example, a pinched nerve in the upper back can cause numbness in the fingers. But if you're suffering with a pinched nerve—your main questions are probably ones of how to fix a pinched nerve, how long does a pinched nerve last, and how do you get pinched nerve relief? Often, pinched nerves are due to inflammation due to muscle tears, injuries, or pulled muscles. Sometimes, scar tissue from old injuries begins to accumulate and press on nerves. The best treatment for pinched nerves is often rest. But medications such as glucocorticoid injections and oral NSAIDs may help. For patients whose radicular pain has not improved with conservative treatment over six weeks and who want nonsurgical treatment, epidural injection of glucocorticoids may be reasonable.
In order to treat this hip and leg pain, it is important to understand the causes of lower back pain. Amongst people below the age of 60, the most common cause of sciatica is a slipped or herniated disc, in the lower lumbar region of the spine. When a disc is swollen or has moved, it puts pressure on the sciatic nerve, causing discomfort and pain. This tends not to happen instantly, but instead generally develops over time. Other causes include:
Both types of problems are frequently helped by anti-inflammatory medications particularly in mild to moderate situations. Some types of analgesics can be used intermittently as well. It's important to realize that both problems can be helped significantly by weight loss, proper forms of exercise and conditioning. In fact, back pain can become chronic without a commitment to the appropriate exercises necessary to stabilize and strengthen the spine. Epidural blocks (corticosteroids are injected into the canal of the low back to reduce inflammation and pain) can help several types of back disorders. Using a cane when walking can help both hip and back pain.
The sacroiliac joint connects the lower spine to the pelvis and any injury or strain to this area can cause a lot of back, hip, groin, and sciatic pain. Sacroiliac joint dysfunction (SJD) can cause not only radiating lower back pain but can also severe pain in the hip area including hip pain at night when sleeping and hip pain when sitting. Often the pain resembles that of a hip injury it is so severe. SJD can also cause severe pain in the groin area. Women may also notice pain running along the distribution of the sciatic nerve. Treatment for sacroiliac joint dysfunction includes rest, anti-inflammatory drugs, and sciatic nerve massage.
How to: Sit on the floor with knees bent so that your right shin is positioned in front of you, your left shin behind you and your left hip dropped all of the way to the floor (a). Inhale and press your left hip forward until you feel a stretch in the front of your hip (b). Exhale and press left hip back to the floor. That’s one rep (c). Complete six to eight reps, working each time to increase your range of motion. Repeat on the opposite side.
Your hip flexors and psoas muscles help drive your legs up when you are running. To stretch these muscles, kneel on the floor and then step out forward with your left leg so that your left foot is on the floor. With your back straight, lean forward so that your weight is on the front foot and you feel a stretch in the hip of the back leg. Perform the stretch on both sides.
Holland also suggests doing strength work in different planes of motion to keep all the muscles in and around your hip flexors, especially your glutes, firing correctly.“You can’t have good hip flexion if your glutes are tight or weak,” Nurse says, “so it’s super important that you’re always stretching and strengthening the front of your hip flexor and the back, which are the glute muscles.”
Start in a runner’s lunge, right leg forward with knee over ankle and left knee on ground with top of your foot flat on the mat. Slowly lift torso and rest hands lightly on right thigh. Lean hips forward slightly, keeping right knee behind toes, and feel the stretch in the left hip flexor. Hold here, or for a deeper stretch, raise arms overhead, biceps by ears. Hold for at least 30 seconds, then repeat on opposite side.
During pregnancy a woman’s abdominals get stretched out. There is no way to avoid this with a growing baby. Muscles work most effectively when they are at an optimal length. Not too short and not too long. The lengthening that happens during pregnancy puts the abdominal muscles at a decreased advantage for working. This decreases the amount of support they provide for spinal stability.  
To achieve this stretch, start out on your hands and knees. Slowly widen your knees out as far as they can go, and make sure to keep your lower legs in line with your knees. Your lower legs and feet should be parallel with one another. Next, ease your upper body forward on your forearms and reach forward until you feel the stretch. Hold this pose for about 10 seconds.
Acute back pain is often the result of muscle sprains or strains. Sprains occur when your ligaments are overstretched and sometimes torn. Strains, on the other hand, are caused by stretching — and possible tearing — of your tendons or muscles. Though the immediate reaction is pain in your back, you may also experience dull aches or discomfort in your hip.
Strength training is another key part of the “do” category, Dr. Vasileff says. “It’s a good idea to focus on quad, hamstring, and gluteal strength,” he says. These muscles surround your hips and provide support, along with your core—which is another area to focus on. “Strengthening your core helps to normalize your walking pattern and stabilize how your pelvis and hips move,” Dr. Vasileff says. That translates to less pain and better hip mobility.
How to: Start feet hip-width apart, with your arms straight out in front of you. Step one foot back on a diagonal, feet flat. Once your foot reaches the floor, lower into a shallow lunge. Keep your knee bent and butt back, twist your pelvis, and rotate your arms back behind your body until they frame the knee. Return to starting position. That's one rep. Do eight reps on each side. Do three to four sets before moving on to the next move, resting for 30 seconds in between each set.
If you've been working out hard, playing football or other sports, or moving a lot of heavy furniture and are suddenly suffering with radiating lower back pain, chances are you have pulled muscles or strained muscles in the back. Often, strained muscles will cause a burning sensation in the lower back a feeling of having limited movement ability. Doctors prefer to limit prescribing of opiate pain medications and may give you an alternative medication with less risk of becoming dependent.
• Gout. Gout is a form of arthritis that occurs when excess uric acid, a bodily waste product circulating in the bloodstream, is deposited as needle-shaped monosodium urate crystals in tissues of the body, including the joints. For many people, the first symptom of gout is excruciating pain and swelling in the big toe – often following a trauma, such as an illness or injury. Subsequent attacks may occur off and on in other joints, primarily those of the foot and knee. Less commonly gout can affect the spine, causing extreme pain, numbness and tingling. It can be confused with a spinal infection.
The most common cause of sciatica is a herniated disk. Disks act like cushions between the vertebrae of your spine. These disks get weaker as you age and become more vulnerable to injury. Sometimes the gel-like center of a disk pushes through its outer lining and presses on the roots of the sciatic nerve. About 1 in 50 people will get a herniated disk at some point in life. Up to a quarter of them will have symptoms that last more than 6 weeks.
Your best bet for losing weight anywhere — whether in your hips, abdomen, or back — of course, is to keep your nutrition in check. Instead of trying to dramatically alter your intake, Braun recommends focusing on one or two habits that you can change right away. For example, instead of grabbing a sugar-rich energy bar or drink on your way out the door in the morning, blend up a protein-packed smoothie, like Shakeology.
This Australian study concluded that “prognosis is moderately optimistic for patients with chronic low back pain,” contradicting the common fear that any low back pain that lasts longer than 6-9 weeks will become a long-term chronic problem. This evidence is the first of its kind, a rarity in low back pain research, a field where almost everything has been studied to death. “Many studies provide good evidence for the prognosis of acute low back pain,” the authors explain. “Relatively few provide good evidence for the prognosis of chronic low back pain.”

Often you’ll perform static stretches seated or lying down, and focus on breathing slowly and deeply to facilitate relaxation — sometimes for several minutes at a time. Static stretches can be very effective at loosening you up, but they also inhibit performance in the stretched muscles for a short time afterward. So they’re best reserved for after a workout, or as an anytime stress reliever — just not right before a workout involving the muscles you’re stretching.

3. Tendinitis and bursitis Many tendons around the hip connect the muscles to the joint. These tendons can easily become inflamed if you overuse them or participate in strenuous activities. One of the most common causes of tendinitis at the hip joint, especially in runners, is iliotibial band syndrome — the iliotibial band is the thick span of tissue that runs from the outer rim of your pelvis to the outside of your knee.

5. Feel free as a bird. Open up those hips with yoga’s pigeon pose! Start on all fours with hands below the shoulders and knees below the hips. Bring the right knee forward until it touches the right hand and place the leg flat on the ground across the body (the right foot is now on the left side of the body, parallel to the front of the mat). Drop left leg to the ground, and extend it back with toes turned under. Keep the hips level, inhale, and walk hands forward. Exhale, and fold the torso over, lowering elbows to the floor. Stay in this position for 5-10 breaths before coming back up to switch sides.
Our hip flexors serve many vital functions. The goal of the hip flexor is to make it easy to for joints to move through their full range of motion smoothly.  They’re responsible for important aspects of motion, like our ability to bend, run, or kick. Without our hip flexors, controlling the movement of our legs would be virtually impossible. Our hip flexors also work to stabilize the joints of the hips and lower body.
A few cancers in their early stages can be hard to tell apart from ordinary back pain — a bone cancer in the vertebrae, for instance — and these create a frustrating diagnostic problem. They are too rare for doctors to inflict cancer testing on every low back pain patient “just in case.” And yet the possibility cannot be dismissed, either! It’s an unsolveable problem.
The gluteus medius is a muscle that sits on the outside of the hip area. This muscle is used for standing upright and walking. When injured, these muscles will cause a limp. If these muscles are torn, it can cause severe pain when walking, sitting, or sleeping. Treatment usually involves rest, physical therapy, and sometimes surgery to repair the torn muscle, if no other treatments bring relief from pain.
Wrapping a Thera-Band around your ankles before you perform Lateral Walks or Shuffles increases resistance, strengthening your hip abductors and gluteus medius. When you perform this exercise, you will quickly find out if you have weak hips. This is most beneficial for basketball players, who are required to be in a crouched defensive stance and shuffle when playing defense.

Line up your hips parallel to each other, continually pressing the left hip toward the floor. If this position is too difficult, place a blanket under your bottom. To intensify the stretch, move the right foot away from the left side of your body and drop to the elbows or chest. To make this pose less intense, move the right foot closer to your right leg and stay on the hands instead of folding.
Cauda equina syndrome can be causes by spinal birth defects in children or, in adults, falls, inflammation, malignant tumors, injuries, or, and this is the most prevalent cause—a ruptured disc in the lumbar region of the spine. Symptoms of cauda equina include radiating pain in the lower back, pain and numbness in the legs and lower back, weakness in the lower body, loss of sexual function, and loss of bladder control. Another prominent symptom is upper leg pain, sharp pain in the thigh, loss of sensation in the upper leg muscles, and inner thigh pain. It is critical to seek immediate medical care and often including a neurosurgery consultation,
Lay on your back on your mat and pull your knees to your chest. Place your hands on the inside arches of your feet and open your knees wider than shoulder-width apart. Keeping your back pressed into the mat as much as possible, press your feet into hands while pulling down on feet, creating resistance. Breathe deeply and hold for at least 30 seconds.
Meanwhile, many non-dangerous problems can cause amazingly severe back pain. A muscle cramp is a good analogy — just think about how painful a Charley horse is! Regardless of what’s actually going on in there, muscle pain is probably the main thing that back pain patients are feeling. The phenomenon of trigger points — tiny muscle cramps, basically11 — could be the entire problem, or a complication that’s more painful and persistent than the original problem. It’s hard to overstate how painful trigger points can be, but they are not dangerous to anything but your comfort.

Kidneys — The kidneys are a matched pair. One painful kidney can cause back pain on one side or the other. Kidney pain can feel like back pain, and may occur on only one side. It is usually quite lateral, and just barely low enough to qualify as “low” back pain. However, when kidney stones descend through the ureters, they can cause (terrible) pain in the low back. Kidney stone pain is often so severe and develops so rapidly that it isn’t mistaken for a back pain problem.
Don’t medically investigate back pain until it’s met at least three criteria: (1) it’s been bothering you for more than about 6 weeks; (2) it’s severe and/or not improving, or actually getting worse; and (3) there’s at least one other “red flag” (age over 55 or under 20, painful to light tapping, fever/malaise, weight loss, slow urination, incontinence, groin numbness, a dragging toe, or symptoms in both legs like numbness and/or tingling and/or weakness).
Piriformis syndrome is not considered a serious injury—so RICE is in order for pain caused by triggers, like sitting too long. RICE is Rest, Ice, Compression, and Elevation. Also, see a primary care doctor or neurologist (nerve specialist), who can recommend physical therapy exercises and exercises for hip pain and other specific types of pain that will help you feel better. Also, a physican therapist can suggest ways exercises that provide pinched nerve relief, as nerve pain relief is what is primarily needed here.

The hip flexor stretch has become a very popular stretch in the fitness and sports performance world, and rightly so considering how many people live their lives in anterior pelvic tilt.  However, this seems to be one of those stretches that I see a lot of people either performing incorrectly or too aggressively.  I talked about this in a recent Inner Circle webinar on 5 common stretches we probably shouldn’t be using, but I wanted to expand on the hip flexor stretch as I feel this is pretty important.
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