Flexor Tendon Gliding Exercise for a Stiff Hand: 5-Step Adhesion Guide

You wake up, try to make a fist, and the joints catch like they need oil. Four days after trigger finger release surgery, the finger still only folds halfway. Four to five weeks in a cast for a broken wrist or finger, and once the cast comes off every knuckle feels like carved wood. These look like three different situations, but in a hand clinic they get treated as almost the same problem: a tendon that can no longer glide freely and has stuck to the tissue around it.

A lot of people assume a stiff finger means more rest, but stiffness after surgery or immobilization tends to get worse the longer it is left alone. On the other hand, randomly opening and closing the fist without any order does not help much either. The flexor digitorum profundus (FDP) and flexor digitorum superficialis (FDS) tendons are supposed to glide at different speeds along different paths, and closing the hand into a fist with no sequence just reinforces the habit of the two tendons moving as one stuck block. Below is a five-position tendon gliding routine that deliberately moves the two tendons separately, walked through from starting position to the signals that mean you should stop. Recovery after trigger finger release and recovery after a fracture allow different starting points and different amounts of force, so the two situations are covered separately.

Why the Finger Gets Stiff: The Mechanics of Tendon Adhesion

Two tendons bend the finger. The flexor digitorum profundus (FDP) runs in the deeper layer all the way to the fingertip bone (distal phalanx), while the flexor digitorum superficialis (FDS) sits in a shallower layer and attaches at the middle bone (middle phalanx). Both tendons run side by side through a system of pulleys, A1 through A5, inside a synovial sheath. In a normal hand, the two tendons glide different distances at different moments. The problem is that whenever finger tissue is injured by surgery or immobilized for a long stretch in a cast, fibrous tissue fills the space between the tendon and its sheath surprisingly fast. That fibrous tissue binds the tendon to the surrounding structures, so even though the tendon itself is intact, its ability to glide is restricted and the finger can no longer bend or straighten fully.

Trigger Finger Release and Fracture Immobilization Cause Adhesion Through Different Paths

Trigger finger (stenosing tenosynovitis) release surgery cuts the A1 pulley to widen the tunnel the tendon catches on, so the tendon itself is never injured. Even so, a good number of patients unconsciously move the finger less for the first few days after the procedure, and connective tissue around the incision forms a thin, localized adhesion over the tendon. A finger or wrist fracture immobilized in a cast or splint for three to six weeks is different: the tendon is untouched, but the joint capsule, ligaments, and tendon sheath as a whole stiffen up, which behaves more like a joint contracture. Both situations show up as the same visible symptom, a finger that will not close, but trigger finger recovery is aimed at resolving a localized tendon adhesion, while fracture recovery has to balance restoring range of motion across the whole joint with protecting bone healing.

The Research Behind Why Hand Position Changes How Much a Tendon Glides

Wehbé MA and Hunter JM, in a 1985 study published in the Journal of Hand Surgery (American), used fluoroscopy on normal hands to measure how far the FDP and FDS tendons each glide when the fingers are placed in five different positions. They found that the hook position, which curls only the fingertip joints while the base knuckle stays straight, produced markedly greater FDP excursion, while the straight fist position, which bends the middle joint but keeps the fingertip straight, engaged mostly the FDS. In the full fist position, both tendons glided together, by roughly similar amounts, at nearly the same time. In other words, simply changing hand position can meaningfully widen or narrow the relative gliding distance between the two tendons, on the order of millimeters. The study is limited to a small number of normal hands, and whether the same size of difference shows up in hands that already have adhesions was never separately verified, but the finding has been cited repeatedly ever since as the basis for the five-position tendon gliding sequence used in hand therapy today.

There is also research on early motion after fracture. Feehan LM and Bassett K, in a 2004 systematic review published in the Journal of Hand Therapy, found that in patients with extra-articular finger fractures, minimizing immobilization time and starting finger range-of-motion exercises early did not increase complications such as nonunion or refracture, and tended to reduce joint stiffness. The authors themselves noted that most of the individual studies reviewed had small sample sizes and low levels of evidence, mostly retrospective, and that fracture patterns and fixation methods varied enough across studies that generalizing to a single protocol is difficult. Even so, the review points toward a clinical direction: once a fracture is stably fixed, moving early within a controlled range may be more favorable than simply resting longer.

Why Swelling and Stiffness Arrive Together

Fingers have a small tissue volume relative to their surface area, so swelling from surgery or a fresh fracture tends to linger. Swollen tissue physically takes up the space a tendon needs to glide through, which means a finger can feel stiff purely from edema even before adhesion has fully set in. Elevating the hand above heart level for about five minutes before starting the gliding routine, or gently stroking from wrist toward fingertips as manual edema management, tends to make the same range of motion less painful and the exercise more effective.

The Five-Position Tendon Gliding Routine, Step by Step

The five positions below are performed in sequence as a single set. Each position targets a different tendon and joint, so skipping or mixing up the order means one tendon keeps getting stimulated while the other stays stuck at the adhesion site. Telling the five positions apart feels confusing at first, but after a week or two of practice in front of a mirror, the difference starts to register in the fingertips themselves.

Position 1. Straight Hand

Starting position. Rest the elbow lightly on a table with the palm facing down. Straighten all five fingers as much as possible and bring them together.

Movement. Keeping the fingers straight, extend the wrist slightly (tilt it upward) and notice the stretch along the back-of-hand tendons. There is no separate flexion here; this position is simply the reference point before moving to the next one.

Breathing. Take a short inhale while straightening the fingers, then exhale slowly while holding the position for three seconds.

Sets and frequency. Treat all five positions together as one set: hold each position for three to five seconds, repeat five to ten times, and run through the full set three to five times a day.

Common mistake and fix. Over-extending the wrist so the stretch becomes a wrist stretch rather than a finger stretch is common. Keep the wrist in neutral to slightly extended and keep your eyes on the alignment of the fingertips instead.

Stop signal. If simply straightening the fingers produces a sharp, shooting pain or numbness in the fingertips, stop for the day after the straight hand position, skip the rest of the sequence, and tell your care team.

Position 2. Hook Fist

Starting position. Continue from the straight hand position with the wrist held neutral.

Movement. Keep the MCP joints (the base knuckles) fully extended and bend only the PIP and DIP joints so the fingertips curl toward the palm like a hook. Gently pressing the base knuckles flat with the other hand helps keep the hook shape accurate.

Breathing. Exhale while curling into the hook, then breathe shallowly and comfortably during the three-to-five-second hold.

Sets and frequency. Hold for three to five seconds, release slowly, repeat five to ten times, three to five sets a day.

Common mistake and fix. The most common error is letting the MCP joints bend too, which turns the hook fist into a full fist. Keep a mirror nearby and confirm the base knuckle line stays straight while curling slowly.

Stop signal. If one specific finger will not reach the angle the others do, or if bending produces a catching click along with pain, do not force that finger; check with your therapist.

Position 3. Straight Fist

Starting position. Fully release the hook fist and straighten the fingers before starting again.

Movement. This time do the opposite: keep the DIP joints (fingertip joints) extended and bend only the MCP and PIP joints, so the shape looks like a fist made with the fingertips still straight. The fingertips tend to want to curl along, so lightly supporting them straight with the other hand can help.

Breathing. Exhale while bending, breathe naturally while holding, inhale while releasing.

Sets and frequency. Hold three to five seconds, five to ten reps, three to five sets a day. This position often feels stiffer than the hook fist, so avoid chasing a bigger angle too early.

Common mistake and fix. Letting the fingertip joint bend along, turning it into a half-formed hook rather than a true straight fist, is the most common error. Keeping the fingertip straight matters more than the angle achieved at the base knuckle.

Stop signal. If this position alone triggers a burning pain or a sudden jump in swelling, do only positions one and two that day and reduce the intensity.

Position 4. Full Fist

Starting position. Release the straight fist and return the fingers to fully extended.

Movement. Bend the MCP, PIP, and DIP joints of all four fingers at once (excluding the thumb) into a complete fist. Rest the thumb lightly against the side without pressing.

Breathing. Exhale while closing the fist, and stay mindful not to unconsciously hold your breath during the three-to-five-second hold.

Sets and frequency. Five to ten reps, three to five sets a day. In the early days after trigger finger release or right after a cast comes off, it is fine to start at roughly half the full angle, within a pain-free range.

Common mistake and fix. Flexing the wrist along with the fingers and using that momentum to close the fist is common, but it borrows motion from the wrist tendons instead of the finger tendons. Keep the wrist neutral and close the fist using the finger joints alone.

Stop signal. If a fist that used to close normally suddenly closes less than halfway, that can point to a tendon problem, such as a rupture or re-injury, rather than ordinary adhesion. Stop for the day and contact your clinic.

Position 5. Table Top

Starting position. Fully release the full fist and turn the palm to face down.

Movement. Keep the fingertip joints (PIP and DIP) straight and bend only the MCP joints, so the fingers drop below the back of the hand as if the knuckles were propped up on a table. This position is useful for checking stiffness in the intrinsic hand muscles and the MCP joint itself, rather than in the tendons.

Breathing. Same pattern as the other positions: exhale while bending, breathe comfortably while holding.

Sets and frequency. Hold three to five seconds, five to ten reps, three to five sets a day, finishing the full routine here.

Common mistake and fix. Letting the PIP joints bend along, so the whole finger droops instead of just the base knuckle rising, is common. Move slowly, keeping the fingertip joints straight while only the base knuckle lifts.

Stop signal. If this position produces sharp pain across the back of the hand, beyond ordinary stiffness, that may point to inflammation in the joint capsule rather than the intrinsic muscles. Reduce the angle and check with your therapist.

Tracking Your Own Progress

Measuring the distance between fingertip and palm in the full fist position at the same time each week, with a simple ruler, gives you a visible change that helps with motivation. The ratio of actual active flexion angle to the sum of normal range of motion across all finger joints is called Total Active Motion (TAM), a measure your therapist likely records at every visit. At home, tracking just the fingertip-to-palm distance in centimeters, without a goniometer, is enough to see the trend.

Weekly Progression After Trigger Finger Release vs. After a Fracture

The same five positions call for different starting points and different intensity depending on whether you are recovering from trigger finger release or from a fracture. Because trigger finger release never cuts the tendon itself, the full range of motion can usually be attempted relatively early. A fracture runs on a separate timeline set by bone healing, so following the timing matters more than chasing the angle.

After Trigger Finger Release: Move Early, But Protect the Incision

Because trigger finger release only cuts the A1 pulley, the strength of the finger tendon itself is preserved right after surgery. That is why many hand surgeons advise starting the straight hand and hook fist positions as early as the day after the procedure, as long as bleeding has stopped and pain is tolerable. Even so, avoid directly rubbing or pressing on the incision, and avoid soaking it in water, until the sutures are removed. If the full fist position still shows a noticeably limited angle a week after the procedure, that can be a sign that a localized adhesion is already forming, and letting your care team know early tends to influence how quickly recovery proceeds from there. Anyone dealing with a recurring trigger finger or persistent stiffness may also find it useful to look at trigger finger release nir recovery.

After a Fracture, Bone Union Comes Before Range of Motion

A finger or wrist fracture typically needs about four to six weeks before bony union is confirmed on an X-ray, and only then does the plan move into resistance exercise. Right after a cast comes off, the joints and tendon sheath are often so stiff that even position one, the straight hand, does not come out fully — but this is usually simple stiffness from immobility, not a sign that healing went wrong. The real risk in this window is impatience: pushing through pain with an aggressive stretch to speed up the angle can put unnecessary force on a fracture site that has not fully matured yet. For fracture patients, the rule is to keep all five positions within a pain-free range and to avoid any resisted stretch or forceful push from the other hand until union is confirmed on imaging. Buddy taping an injured finger to a neighboring one can prevent it from bending too far, but taping it too tightly blocks the small individual glide each finger needs, so leave enough slack for a slight gap between the two fingers.

Contraindications and Stop Signals You Must Not Ignore

Tendon gliding exercises are safe for most cases of finger stiffness, but in the situations below you should not decide to start on your own — check with your care team first.

• Before bony union is confirmed on imaging, especially with an unstable or comminuted fracture, do not attempt the full angle of positions 4 and 5.
• If an acute tendon rupture is suspected — a specific joint suddenly cannot be actively straightened or bent right after an injury — get an orthopedic evaluation before starting any self-directed exercise.
• If the surgical or procedure site shows redness, warmth, purulent discharge, or a fever above 38°C, hold off on exercise that day and contact your clinic.
• While an open wound remains at the incision, avoid soaking it in water or any grip exercise that involves heavy friction.
• If an active inflammatory joint disease such as rheumatoid arthritis is in an acute flare, hold off on resisted movement and manage joint swelling first.
• With reduced fingertip sensation from conditions such as diabetic neuropathy, pain signals cannot reliably guide intensity, so do not increase the angle on your own judgment; proceed only under a therapist's supervision.
• Swelling-related stiffness in the wrist or fingers during pregnancy often does not resolve with tendon gliding exercise alone and needs a separate evaluation.

Stop exercising immediately and contact your care team as soon as possible if any of the following appear.

• Active flexion or extension that was possible yesterday suddenly drops to less than half today
• The finger turns pale or bluish along with a cold sensation
• Throbbing pain persists through the night unrelated to exercise, or is not controlled by your usual pain medication
• New numbness or altered sensation in the fingertip appears or keeps spreading
• Sudden swelling and warmth around the incision or the immobilized area

Watching for these signals often matters more than the exercise itself in determining how fast recovery goes. Whether it is trigger finger or a fracture, starting a day or two late rarely sets a finger back much, but re-injuring the tissue through a forceful, self-directed decision tends to extend the entire recovery period.