The short version: hip mobility is not one number. The hip moves in several directions, and each direction has its own range and its own limits. Stretching reliably adds some range, but why it does so is still argued over. Strength training through a full range adds range too. And hip pain, particularly in the groin, is a question for a clinician before it is a question for a stretch table.
People usually arrive at this topic with a feeling rather than a measurement: hips that feel stuck getting out of the car, a squat that stops short, one side that will not rotate the way the other does. This page works through the questions that feeling tends to raise, and is plain about where the research runs out.
What does hip mobility actually mean?
The hip is a ball-and-socket joint, which is why it moves in so many directions: forward and back, out to the side and across the body, and rotating in and out. Each of those is a separate range of motion. A hip can bend forward easily and still rotate poorly.
The federal Physical Activity Guidelines for Americans make the general version of this point. Their glossary defines flexibility as the range of motion possible at a joint, and states that “flexibility is specific to each joint and depends on a number of specific variables, including but not limited to the tightness of specific muscles and tendons.”
The stretching research bears that out, including at the hip. When Behm and colleagues pooled 47 studies on the immediate effects of stretching in Sports Medicine – Open in 2023, they found range-of-motion increases on the sit and reach, hamstring, and calf tests, and reported that “there was no change with the hip adductor test.” The adductors are the inner-thigh muscles that pull the leg toward the midline. Same review, same kind of intervention, and a different answer for that one hip direction.
So the useful question is not whether your hips are mobile. It is which direction feels limited, on which side, and in what position. That description is also the most helpful thing you can bring to a first appointment; mobility, flexibility and range of motion explains the vocabulary in more detail.
Why does one hip movement feel stuck when the others are fine?
Because different things limit different directions. Muscles and tendons are part of it, as the guidelines say. So is the shape of the joint itself.
The clearest example is femoroacetabular impingement syndrome, usually shortened to FAI syndrome, a hip condition involving the shape of the ball and the socket. An international consensus of 22 panel members, published in the British Journal of Sports Medicine in 2016 as the Warwick Agreement, set out how it is identified: patients “should have appropriate symptoms, positive clinical signs and imaging findings.”
That sentence matters for anyone deciding where to start. Bone shape cannot be felt from the outside, and a stretch practitioner has no way to tell a range that stops because of muscle from a range that stops because of bone. The consensus puts that question in the hands of clinicians with an exam and imaging, which is where it belongs.
If one hip direction has always been limited and it does not hurt, it may simply be how that hip is built. If it has become limited, or it hurts at the end of the range, see a clinician first.
Does sitting all day make your hips tight?
It is the most common explanation people offer for stiff hips, and there is some evidence behind it, though less than the confidence it is usually said with.
A cross-sectional study by Boukabache, Preece and Brookes in Musculoskeletal Science and Practice in 2021 measured passive hip extension (the leg moving back behind the body) with the modified Thomas test and compared it with self-reported sitting and activity. People who were active and sat less than four hours a day had 6.1 degrees more passive hip extension than people who were inactive and sat more than seven hours a day. The authors described this as the first study to show that association.
What the study does not show is cause. It measured people once and compared groups, so it cannot say whether sitting reduced the range, whether people with less range sit more, or whether something else explains both. The authors wrote only that it is “possible” the findings reflect an adaptation in muscle stiffness, and that further research is required. Treat “sitting tightens your hip flexors” as a reasonable hypothesis with early support, not a settled fact. If long days at a desk are your situation, desk work and mobility covers it in more depth.
Does stretching the hips increase range?
Yes, on average, and the size of the effect depends on whether you mean one session or several weeks.
After one session. Behm’s 2023 review concluded that “a single bout of stretching can be considered effective for providing acute small magnitude ROM improvements for most ROM tests.” Small, and for most tests, not all of them; the hip adductor result above is one of the exceptions.
Over several weeks. Konrad and colleagues pooled 77 studies in the Journal of Sport and Health Science in 2024 and found “that stretch training can increase ROM with a moderate effect compared to the controls.” Static stretching and proprioceptive neuromuscular facilitation (PNF), the contract-and-relax family usually done with a partner, produced larger gains than ballistic or dynamic stretching.
Those are two different findings and should not be merged. A single session is not a training program, and the moderate effect in Konrad’s review came from repeated exposure over weeks.
Is the tissue getting longer, or is something else changing?
This is genuinely unresolved, and most stretching content presents one side as settled.
One explanation is sensory: the nervous system tolerates more stretch, so the joint is allowed further before the stretch becomes uncomfortable, while the tissue stays about the same length. Weppler and Magnusson made that case in Physical Therapy in 2010, writing that “increases in muscle extensibility observed after a single stretching session and after short-term (3- to 8-week) stretching programs are due to modified sensation.” They described measurable lengthening during a stretch as real but “transient.”
The other explanation is mechanical: the muscle and tendon become less stiff or actually change. A 2024 recalculation of earlier reviews by Warneke and colleagues in the European Journal of Applied Physiology found that “chronic stretching reduced muscle stiffness” overall, with the effect appearing in supervised and long-duration static protocols but not in short or unsupervised ones.
The fair reading is probably some of both, with sensory change doing much of the early work and tissue change needing longer, more sustained exposure. Nobody can tell you which one happened in your hips after an hour on a table.
Does strength training do the same job?
For range of motion, the evidence says it can. Alizadeh and colleagues pooled 55 studies in Sports Medicine in 2023 and found that resistance training increased range of motion, with no significant difference between resistance training and stretch training. The exception was training that used only body weight, which did not produce a significant change. Their conclusion was that because “resistance training with external loads can improve range of motion, stretching prior to or after resistance training may not be necessary to enhance flexibility.”
That is worth knowing before paying anyone to stretch you, including us. Loaded movement through a full range, like a deep squat or a split squat done under control, builds range and the strength to use it. Passive range on a table does not train that second part. If usable hip range is the goal, something has to load and control the new positions.
What happens to the hips in an assisted session?
In an assisted session you lie on a table and the practitioner moves the leg while you stay relaxed, so the work is passive range. A second person can hold the pelvis still while moving the thigh, which is hard to do for yourself. Stretch to Win, which developed the method, describes Fascia Stretch Therapy as improving “mobility, flexibility, and stability” and says it is done “on padded tables with stabilization straps.” That is the developer’s own description of its method, not an independent research finding. We looked for studies of the method by name when writing fascia stretch therapy compared with yoga and found none.
A strap or a practitioner’s hand holding one side of the pelvis while the other leg moves is the practical difference between assisted hip work and stretching on the floor. It lets a single hip direction be isolated rather than borrowed from the lower back. Assisted stretching compared with stretching on your own goes through that trade in full.
Any change in range is subject to everything above: small after one session on average, not the same as a multi-week program, of uncertain mechanism, and not maintained without continued work. Frequency is covered in how often you should book assisted stretching.
When is it a clinician question first?
MedlinePlus, the National Library of Medicine’s health information service, notes that hip pain is not always felt over the hip: “You may feel it in your groin, thigh, or knee,” and “Pain due to problems in the hip joint itself is often felt most in the groin.” It also notes that pain felt in the hip may come from the back instead. That is one reason hip pain is a poor thing to work out on your own.
MedlinePlus advises getting emergency help if hip pain follows a serious fall or other injury, if the leg is deformed, badly bruised, or bleeding, if you cannot move the hip or bear weight, or if worsening pain comes with difficulty urinating or having a bowel movement. It advises contacting a provider if the hip is still painful after a week of home care, if there is fever or rash, if there is pain in both hips and other joints, or if you have started limping or having difficulty with stairs.
Add to that a hip that catches, locks, or gives way, and range that is limited by pain rather than by stiffness. All of these go to a physician, physical therapist, or chiropractor before anyone stretches them. A stretch practitioner can describe how a hip moves. Working out why requires a license and a scope this service does not have. What fascia stretch therapy cannot do sets out those limits.
Booking a session
What fascia stretch therapy is explains the method, and who fascia stretch therapy is for covers whether it suits you. The Services page lists the 60-minute session at $120, the About page covers Greg’s background and his Stretch to Win FST Level 2 certification, and the Programs page explains how a session is structured. Sessions are offered in Universal City and the greater San Antonio area.
Fascia stretch therapy here is a wellness and performance service. It does not diagnose a condition, provide medical treatment, or replace care from a physician, physical therapist, chiropractor, or other licensed healthcare professional. No session comes with a guaranteed result.
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