I am a science writer, former massage therapist, and I was the assistant editor at ScienceBasedMedicine.org for several years. I have had my share of injuries and pain challenges as a runner and ultimate player. My wife and I live in downtown Vancouver, Canada. See my full bio and qualifications, or my blog, Writerly. You might run into me on Facebook or Twitter.
An injury to a ligament is called a sprain, and an injury to muscle or tendon is called a strain. Sprains and strains may be caused by repetitive movements or a single stressful incident. Symptoms and signs include pain and swelling. Though treatment depends upon the extent and location of the injury, rest, ice, compression, and elevation are key elements of treatment.

Tight hip flexors can result in lower back pain, hip pain and injury.  A lot of strain is put on those muscles during activities that involve sprinting and kicking.  For example, runners are more prone to hip flexor injuries because of the small, repetitive movement during running.   But even if you’re not an athlete, hip flexor injuries can occur during everyday activities (for instance, slipping and falling or running to catch a bus).  When those tight muscles are suddenly stretched beyond what they are accustomed to, you might also experience pain in the upper groin region, typically where the hip meets the pelvis.   


Exercise therapy is effective in decreasing pain and improving function for those with chronic low back pain.[50] It also appears to reduce recurrence rates for as long as six months after the completion of program[61] and improves long-term function.[57] There is no evidence that one particular type of exercise therapy is more effective than another.[62] The Alexander technique appears useful for chronic back pain,[63] and there is tentative evidence to support the use of yoga.[64] Transcutaneous electrical nerve stimulation (TENS) has not been found to be effective in chronic low back pain.[65] Evidence for the use of shoe insoles as a treatment is inconclusive.[51] Peripheral nerve stimulation, a minimally-invasive procedure, may be useful in cases of chronic low back pain that do not respond to other measures, although the evidence supporting it is not conclusive, and it is not effective for pain that radiates into the leg.[66]
Start in a runner’s lunge with right leg forward, right knee over right ankle and back leg straight. Walk right foot over toward left hand, then drop right shin and thigh to the floor, making sure to keep right knee in line with right hip. Allow left leg to rest on the floor with top of left foot facing down. Take a moment to square your hips to the front of the room. Hold here, or hinge at hips and lower torso toward floor, allowing head to rest on forearms. Hold for at least 30 seconds, then repeat on opposite side. You want to feel a moderate stretch in the outside of the right thigh, but if this pose hurts your knees or feels too uncomfortable, stick with Thread the Needle.
Workers who experience acute low back pain as a result of a work injury may be asked by their employers to have x-rays.[102] As in other cases, testing is not indicated unless red flags are present.[102] An employer's concern about legal liability is not a medical indication and should not be used to justify medical testing when it is not indicated.[102] There should be no legal reason for encouraging people to have tests which a health care provider determines are not indicated.[102]
Activity: Bed rest should be limited. Individuals should begin stretching exercises and resume normal daily activities as soon as possible, while avoiding movements that aggravate pain. Strong evidence shows that persons who continue their activities without bed rest following onset of low back pain appeared to have better back flexibility than those who rested in bed for a week. Other studies suggest that bed rest alone may make back pain worse and can lead to secondary complications such as depression, decreased muscle tone, and blood clots in the legs.

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.
Place a mini band around your ankles and spread your feet about shoulder-width apart. Keeping your legs relatively straight (you want the motion to come from your hips) and toes pointing forward, walk forward 10 steps, then backward 10 steps. Take a short break and then walk to the right 10 steps, then to the left 10 steps. Again, focus on keeping your legs straight and toes pointing forward.

Radiofrequency denervation is a procedure using electrical impulses to interrupt nerve conduction (including the conduction of pain signals). Using x-ray guidance, a needle is inserted into a target area of nerves and a local anesthetic is introduced as a way of confirming the involvement of the nerves in the person’s back pain. Next, the region is heated, resulting in localized destruction of the target nerves. Pain relief associated with the technique is temporary and the evidence supporting this technique is limited.

Intervertebral disc degeneration is one of the most common mechanical causes of low back pain, and it occurs when the usually rubbery discs lose integrity as a normal process of aging. In a healthy back, intervertebral discs provide height and allow bending, flexion, and torsion of the lower back. As the discs deteriorate, they lose their cushioning ability.


Muscle Imbalances – The front of your hips, your hip flexors, are the muscles that will tighten and shorten while you are sitting for hours each day. While you are sitting, the back of your hips, your glutes and your hip extensors, are being overstretched. But just because they are being tightened and stretched respectively, doesn’t benefit either of them. They are also being weakened because of the lack of use of each muscle group.
When your body comes under stress it can stimulate a reaction from your central nervous system, flooding your body with inflammatory chemicals – definitely not what you want if inflammation is the root of your suffering. Instead try to focus on what you can do and make sure you set aside time to rest. Don’t make the mistake of pushing yourself too hard or trying to do too much at once!
Parts of the pain sensation and processing system may not function properly; creating the feeling of pain when no outside cause exists, signaling too much pain from a particular cause, or signaling pain from a normally non-painful event. Additionally, the pain modulation mechanisms may not function properly. These phenomena are involved in chronic pain.[12]
Swimming is a low impact form of exercise that can help to relieve the pressure on your joints. It’s thought that water aerobics may help to reduce the impact on your joints by up to 75%!2  Be careful though; start with a beginner’s class and always do only what you’re comfortable with – try to avoid over-exercising or pushing your muscles too far!

NINDS health-related material is provided for information purposes only and does not necessarily represent endorsement by or an official position of the National Institute of Neurological Disorders and Stroke or any other Federal agency. Advice on the treatment or care of an individual patient should be obtained through consultation with a physician who has examined that patient or is familiar with that patient's medical history.

Parts of the pain sensation and processing system may not function properly; creating the feeling of pain when no outside cause exists, signaling too much pain from a particular cause, or signaling pain from a normally non-painful event. Additionally, the pain modulation mechanisms may not function properly. These phenomena are involved in chronic pain.[12]


Deanna is an ACE® certified personal trainer, Balanced Body® Pilates instructor, and NASM® Fitness Nutrition Specialist. She is passionate about inspiring others to lead a healthier lifestyle through fun workouts and healthy food. When she’s not creating new workouts and recipes for her blog The Live Fit Girls she enjoys running with her two dogs and traveling.

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..


Why is back pain still a huge problem? Maybe this: “It is extremely difficult to alter the potentially disabling belief among the lay public that low back pain has a structural mechanical cause. An important reason for this is that this belief continues to be regularly reinforced by the conditions of care of a range of ‘hands-on’ providers, for whom idiosyncratic variations of that view are fundamental to their professional existence.”
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