The best exercises for frozen shoulder are gentle stretching movements that gradually restore your range of motion, particularly pendulum swings, cross-body stretches, and passive stretches into flexion and rotation. Exercise therapy has been shown to be superior to other treatments for improving the two motions frozen shoulder restricts most: abduction (lifting your arm out to the side) and external rotation (rotating your arm outward). In one study, exercise therapy improved abduction from 96 degrees to nearly 155 degrees and external rotation from 41 degrees to about 71 degrees over 12 weeks.
But the “best” exercise depends on where you are in the condition’s cycle. Frozen shoulder moves through distinct stages, and what helps during the painful early weeks can be very different from what helps months later when stiffness is the main problem.
How Frozen Shoulder Progresses
Frozen shoulder typically lasts 12 to 18 months and moves through three stages. The first is the freezing stage, lasting roughly 2 to 9 months, where pain steadily increases and motion starts to disappear. The second is the frozen stage, lasting 4 to 12 months, where pain actually decreases but stiffness reaches its worst point. The third is the thawing stage, lasting 6 to 9 months, where movement gradually returns.
Understanding which stage you’re in matters because it determines how aggressively you should stretch. During the freezing stage, pushing through sharp pain can increase inflammation and make things worse. During the frozen and thawing stages, consistent stretching is what drives recovery.
Pendulum Exercises
Pendulum exercises are the starting point for nearly every frozen shoulder rehab program, and they’re especially useful in the early, painful freezing stage. You lean forward with your unaffected arm resting on a table or chair, letting your affected arm hang straight down. Then you gently swing it in small circles, side to side, and forward and back, using gravity and momentum rather than muscle effort to create movement.
Start with small swings of about 8 inches and gradually work up to circles 2 to 3 feet in diameter as your comfort allows. Aim for 10 to 20 repetitions in each direction. Because these exercises are so gentle, you can do them frequently: 3 to 5 sessions per day. The beauty of pendulums is that they create motion in the joint without forcing the inflamed capsule, which makes them one of the few exercises that feel productive even when your shoulder is at its most painful.
Passive and Assisted Stretching
Once the intense pain of the freezing stage starts to fade, passive stretching becomes the core of your recovery. “Passive” means you’re using an outside force, like your other hand, a wall, or a towel, to move the stiff shoulder rather than relying on the muscles of the affected arm. This matters because the problem in frozen shoulder isn’t weak muscles. It’s a thickened, tightened joint capsule that physically won’t let the arm move. The joint capsule accounts for roughly 47% of joint stiffness, more than any other tissue.
Stretching works by gradually improving the extensibility of that stiff capsule. It also stimulates the production of lubricants between connective tissue fibers, which helps prevent further adhesions from forming. When connective tissue goes unused, collagen increases in stiffness and density while elastic fibers lose their stretch. Consistent, gentle stretching reverses that process over time.
Key Stretches to Focus On
- Wall climb (flexion stretch): Stand facing a wall and walk your fingers up it as high as you can, letting your body move closer to the wall as your arm rises. Hold the top position for 15 to 30 seconds. This targets forward flexion, one of the first motions to disappear.
- Towel stretch (internal rotation): Hold a towel behind your back with both hands. Use your good arm to gently pull the affected arm upward. This stretches the motion you use to reach behind your back, like tucking in a shirt or clasping a bra.
- Cross-body stretch (posterior capsule): Use your good hand to pull your affected arm across your chest and hold for 15 to 30 seconds. Research comparing this stretch to the sleeper stretch (lying on your side and pressing your forearm toward the floor) found that both improve internal rotation, but the cross-body stretch performed just as well or slightly better. Adding the sleeper stretch on top of cross-body stretching didn’t produce any additional gains in range of motion.
- External rotation stretch: Stand in a doorway with your elbow bent at 90 degrees and your forearm against the door frame. Slowly rotate your body away from the arm until you feel a stretch in the front of your shoulder. External rotation is often the most restricted motion in frozen shoulder, so this one tends to feel the most limited at first.
How Often to Stretch
The University of Washington’s orthopedic department recommends performing your full stretching sequence three times a day. Consistency matters more than intensity. A common mistake is doing one aggressive session and then skipping the rest of the day because the shoulder is sore. Three shorter, gentler sessions spread throughout the day will outperform one long, painful one.
Each stretch should be held for 15 to 30 seconds, and you should feel a pulling sensation but not sharp pain. If a stretch causes a spike of pain that lingers after you stop, you’ve pushed too far. Back off slightly and try again the next session. Progress in frozen shoulder is measured in weeks and months, not days.
Techniques That May Speed Recovery
Applying a hot pack to your shoulder for 10 to 15 minutes before stretching can make the tissue more pliable and the stretches more productive. One study found that combining heat, electrical nerve stimulation, and a hands-on joint mobilization technique called Mulligan’s technique produced better outcomes in range of motion, pain, and patient satisfaction than heat and passive stretching alone.
Mirror therapy, where you watch your unaffected arm move in a mirror to create the visual illusion that your frozen shoulder is moving freely, has also shown benefits when combined with physical therapy. A randomized controlled trial found it significantly improved both active and passive flexion and abduction compared to physical therapy alone. The mechanism likely involves retraining the brain’s movement patterns, which can become inhibited after months of guarding against pain.
What to Expect Over Time
The frustrating reality of frozen shoulder is that even with perfect exercise compliance, recovery takes many months. Most people see meaningful improvement somewhere between the 3- and 6-month mark of consistent stretching. The condition does resolve on its own in the vast majority of cases, but “on its own” without exercise often means living with significant stiffness for well over a year.
Exercise shortens that timeline and improves the final outcome. The 12-week study showing abduction gains of nearly 60 degrees is a realistic picture of what dedicated stretching can accomplish. You likely won’t wake up one morning with full motion restored. Instead, you’ll notice small incremental gains: reaching a shelf you couldn’t last month, sleeping on that side again, fastening a seatbelt without wincing.
If your range of motion plateaus for several weeks despite consistent stretching, a physical therapist can add hands-on joint mobilization techniques that target specific directions of restriction. Some people also benefit from a corticosteroid injection during the painful freezing stage to reduce inflammation enough that stretching becomes tolerable, essentially creating a window where exercise can be more effective.