Seven evidence-based tests to find the weak links in your movement — and exactly what to do about them.
Injuries rarely come out of nowhere. In the clinic, the same handful of root causes show up again and again, and many of them are spottable well before anything actually breaks down.
Every tissue — tendon, muscle, cartilage, bone — has a tolerance threshold. Injuries happen when demand consistently exceeds what that tissue can handle. It's about cumulative load over time, whether you're at a desk, in the gym, or on a run.
When one joint can't do its job, the next one in line picks up the slack. Stiff ankles let the knees cave inward. Tight hips push rotation into the lower back. These compensations are common, and over time they drive a lot of overuse injuries.
Mobility on its own doesn't protect you. Joints need active control through the range they have. A glute that gives out under a heavy squat, a hip that can't hold a single-leg landing: these look like sudden injuries, but they're usually a capacity problem that built up over time.
Every tissue in the body can adapt and get stronger — but only with the right amount of stress, followed by adequate recovery. Think of it like a dial: too little load and the tissue stays weak; too much too fast and it breaks down. The goal is to stay in the window between those two extremes. When you gradually increase training demands — weight, reps, distance, frequency — tissues have time to remodel and raise their tolerance ceiling. The most common cause of injury isn't doing too much. It's increasing load faster than tissues can adapt. The corrective exercises in this guide are designed to build capacity, not just range.
Work through each screen in order. You need only a wall, a chair, and a few inches of floor space.
Note any test where you flag, or where you notice a clear difference between sides. A side-to-side gap matters as much as an outright limitation.
Run the correctives for any screen you flag, three to four sessions a week for four to six weeks, then retest.
The weight-bearing lunge test, one of the most overlooked mobility limits in regular trainers.
Knee touches the wall at ≥4 inches with the heel staying flat on the floor.
Heel rises before contact, or contact only closer than 4 inches. Also flag a side-to-side gap over about 1.5 cm.
Limited ankle dorsiflexion is one of the better-documented contributors to lower-body injury. When the ankle can't bend far enough under load, the knee tends to cave inward to find the range, which loads the kneecap and nearby soft tissue. Low ankle mobility also tracks with Achilles problems and plantar fasciitis (heel and arch pain).
Loop a band around the front of the ankle, just below the ankle bones, anchored low behind you so it pulls the ankle back. Drive your knee out over your toes, heel flat. No wall needed. It frees the joint, not just the calf.
Stand facing a wall, the stretching foot in front and close to it. Keep that heel flat and drive the front knee toward the wall, out over your toes. The bent knee targets the soleus, the deep calf muscle that limits dorsiflexion here.
Hold a doorframe or TRX for light support. Squat as deep as you can while driving your knees forward over your toes, heels down. Build depth over the weeks. This loads dorsiflexion under your own weight, the way the body actually uses it.
A simple read on how your hip and knee behave when all your weight is on one leg.
Knee tracks over the 2nd toe, pelvis stays level, no significant trunk lean. Movement is controlled through all 5 reps.
Knee dives inward, the pelvis drops on the opposite side (hip drop), or a notable trunk lean to compensate. Any asymmetry between sides.
A hip that drops or a knee that caves under single-leg load is linked to kneecap pain, IT band syndrome (outer-knee pain), and higher knee-injury risk on landing. It starts higher up: when the side glutes (gluteus medius) can't keep the pelvis level, the knee absorbs it. A lot of knee pain traces back to the hip.
In a side plank from your knees or feet, hips stacked and feet together, open the top knee toward the ceiling like a clamshell, then lower with control. Working the side glutes and lateral core together beats lying clamshells alone.
Loop a band just above your ankles. Stay in a slight squat and take slow, deliberate steps sideways, toes pointing forward. Don't let the trailing knee cave in. Control every step rather than chasing speed.
Hold a TRX or countertop lightly for balance. Squat slowly on one leg to about 60 to 90 degrees, then drive up through the heel. The support builds hip and glute strength through full range while your balance catches up. Ease off it as you get stronger.
When the mid-back won't rotate, the neck, shoulders, and lower back end up covering for it.
Both sides turn a similar amount, smoothly and without pain, the motion coming from the mid-back not the seat.
One side turns noticeably less, there's pain, or you only get around by shifting the hips or low back.
When the mid-back (the thoracic spine) won't rotate well, that rotation has to come from somewhere, usually the lower back and shoulders. Neck pain, shoulder trouble, and low back pain often have a stiff mid-back as a contributing factor, so freeing up motion here can take pressure off the spot that hurts.
On all fours, slide one arm under your body along the floor so your upper back rotates while your hips stay square. Reach as far as you can, let your head follow, then return. Keep the turn in the mid-back rather than letting the hips swing.
Anchor a band at chest height. Stand side-on, feet shoulder-width, knees soft. Hold the handle in both hands at chest level, arms straight, and rotate your torso away from the anchor, leading with the chest. Return slowly, hips facing forward throughout.
Lie on your side, hips and knees stacked at 90 degrees, both arms out in front. Sweep the top arm up and over to the other side, following with your eyes, until it nears the floor. Breathe out as you open, keeping the hips stacked.
When your arm goes overhead, the shoulder blade must rotate too, or the shoulder covers the gap.
The bottom tip of the shoulder blade reaches the level of the armpit as the arm goes overhead. No winging, no excessive shrugging.
The bottom tip stays well below armpit level, the blade wings off the ribcage, or the shoulder shrugs toward the ear to compensate.
As the arm goes overhead, the shoulder blade must rotate up so the joint can move cleanly. If it doesn't, often because the serratus anterior and lower trapezius aren't doing their share, the shoulder has less room. Limited upward rotation tracks with shoulder pain and cuff trouble. The link isn't settled, but training it builds a steadier base.
Face a wall, forearms flat against it at shoulder height. Slide both arms slowly up the wall. At the top, shrug up toward your ears, then pull back down before lowering. The shrug trains the muscles that finish the motion overhead.
Lie face down, thumbs up. Raise both arms overhead into a Y, squeezing between and below the shoulder blades, and don't let the shoulders creep toward your ears. This builds the lower trapezius, a key player in finishing overhead rotation.
From a push-up position, push your hips up and back into a downward dog. Press the floor away and let your shoulder blades spread and rotate up around the ribcage rather than pinch. Hold two or three breaths. It loads those muscles close to the overhead position.
When you lift the leg, the movement should come from your glute, not from arching your lower back.
Thigh lifts 1–2 inches cleanly before any movement in the lower back or pelvis. Spine stays neutral, pelvis stays level throughout.
Lower back arches or rotates immediately as the leg lifts. Pelvis tilts or hikes before the thigh clears the floor. Notable asymmetry between sides.
Hip extension powers walking, running, squatting, and deadlifting. This screen is really about control: can you extend the hip while the lower back and pelvis stay still? When the back moves first, the motion is coming from the spine, not the hip. Cleaning that up lets the glutes do their job and spares the lower back.
Lie on your back, knees bent. Press your lower back gently into the floor, then drive through both heels to lift the hips, squeezing the glutes at the top. Lower over three seconds. This lets the glutes lead so your back isn't doing the lifting.
Same setup as the screen, knee bent to 90 degrees and a folded towel on your lower back to watch it. Squeeze the glute and lift the thigh as high as you can without the back moving, maybe an inch at first. Add range as the glute gets stronger.
On all fours, spine neutral, squeeze the glute and press your foot toward the ceiling, knee bent at 90 degrees. Stop the moment your lower back wants to arch, keeping the spine still. Lower slowly. This builds glute-driven extension with a stable back.
Both sides turn a similar amount, chin level and shoulder relaxed, smooth and pain-free. Most people can look well over the shoulder.
One side turns noticeably less, the chin lifts or tilts to find range, the shoulder shrugs, the torso turns, or there's pain.
Limited neck rotation often goes hand in hand with neck pain, headaches that start at the base of the skull, and tight upper traps. Frequently, the joint itself is a problem as well as weak deep neck muscles. So the fix is about increasing motion of the joints in the neck as well as the strength of the deep stabilizing neck muscles.
Sit or lie down. Without tilting your chin, glide your head straight back, the motion that makes a brief double chin. Hold five seconds, then release. This isn't about range; it wakes up the deep neck muscles that switch off with a forward head all day.
Lie on your back, head resting on the floor. Do a gentle chin tuck first, then slowly turn your head to one side, chin level. Pause two seconds at the end, then return. Lying down takes posture out of it, so you get a cleaner, truer turn.
Stand side-on to a wall with a small soft ball pressed lightly between your temple and the wall. Slowly turn your head, using the ball as feedback to keep the motion level instead of letting your chin lift. It helps groove a clean, straight turn.
Each running and jumping step drives several times your body weight through the Achilles, more at speed.
At least 15 to 20 full-range, controlled reps per side, even between legs, no real calf or Achilles pain. More is better.
Fewer than 15 clean reps per side, more than a three or four rep gap between sides, or noticeable calf or Achilles discomfort.
Running loads the calf and Achilles with several times your body weight every step, climbing toward ten times or more at a sprint and higher when you jump and land. If the calf can't produce and absorb that force rep after rep, the Achilles takes more than its share, a common path into tendon trouble. Coming up short here while you keep running is an avoidable way to get hurt.
Use the screen itself as the exercise: all the way up, slow and controlled down. Once flat ground feels easy at 20-plus reps, slow the lowering to three seconds or hold a light weight. Keep nudging the challenge up rather than repeating the same set.
Stand on a step, heels off the edge. Rise on both legs, shift onto one, then lower that heel slowly below the step over three seconds. This slow lowering (the eccentric part) is one of the best-supported exercises for Achilles resilience and tendon pain.
Once you can clear 15 clean reps per side, add light impact. Jump rope or small springy hops on the balls of your feet build the calf and Achilles' ability to absorb running and jumping shock. Keep sets short, rest fully, build volume slowly.
Work the correctives for any screen you flag, three to four times a week for four to six weeks, then retest. A side-to-side difference often matters more than your absolute range. A gap of more than about 10 to 15 percent between sides is worth addressing even if both sides technically pass.
| Screen | Test | What a flag points to | Key Correctives |
|---|---|---|---|
01Ankle DF |
Lunge <4 in, heel rises | Stiff ankle joint, often from the joint capsule rather than tight muscle | Banded ankle mob, soleus stretch, mobility squat |
02Hip Stability |
Hip drop or knee dive on SL squat | Weak side glutes (gluteus medius) losing control of the pelvis | Side plank clam, band walks, assisted SL squat |
03T-Spine |
Uneven turn side to side, or pain | Stiff mid-back, pushing extra rotation into the lower back and shoulders | Thread the needle, cable rotation, open books |
04Scapular Rotation |
Inferior angle below armpit overhead | Weak serratus or lower trap, so the shoulder blade can't rotate up enough | Serratus wall slide, prone Y, down dog |
05Hip Extension |
Lumbar arches or rotates as leg lifts | Glute not leading the motion, so the lower back takes over | Glute bridge, prone hip ext practice, donkey kick |
06Cervical Rotation |
Nose well short of shoulder, or asymmetry | Overactive upper traps, stiff neck joints, or weak deep neck muscles | Chin tuck, supine rotation, ball-on-wall rotation |
07SL Heel Raise |
Fewer than 15 full reps per side | Calf and Achilles can't yet handle the load of running and jumping | SL heel raises, eccentric drops, pogo hops |
These correctives aren't only about gaining range. The real aim is to build tissue capacity, so your joints, tendons, and muscles can handle more load over time. Step the challenge up every couple of weeks. When an exercise starts to feel easy, treat that as the cue to progress it, not to stop.
The Movement Screen shows you where your weak links are. Finding them is the first step. My weekly newsletter goes deeper, breaking down the clinical research, programming, and movement principles that help you train hard, recover well, and stay out of the PT office.
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