A shoulder that aches at night and won't reach, no matter how hard you try, has a name — and a plan. Stage-matched frozen shoulder care, coached one-on-one.
Medically reviewed by Dr. Devon Hoffman, PT, DPT, CSCS · August 2026
Frozen shoulder (adhesive capsulitis) is a contracture of the shoulder joint capsule that causes deep pain followed by dramatic loss of motion, most often between ages 40 and 60. In the UK FROST trial of 503 patients, structured physiotherapy performed comparably to surgery at 12 months — without the operating room. RISE Physical Therapy treats frozen shoulder one-on-one in 45-minute sessions in Boise and Nampa, Idaho, with no referral required.
Frozen shoulder — adhesive capsulitis, in clinical terms — is a condition in which the capsule surrounding the ball-and-socket shoulder joint becomes inflamed, thickened, and contracted, shrinking the joint's available space and locking away its motion. It affects roughly 2–5% of adults at some point, most often between ages 40 and 60, and is markedly more common in people with diabetes or thyroid conditions.
What makes it different from most shoulder problems is that the restriction lives in the capsule itself. A painful rotator cuff still lets someone else lift your arm through its full arc; a frozen shoulder does not. That distinction — lost passive motion — is what your physical therapist tests for on day one, because it separates frozen shoulder from the injuries that mimic it.
Frozen shoulder classically moves through three overlapping stages, and the full untreated course commonly spans 1–3 years:
Book an evaluation if shoulder pain is waking you at night, you're losing the ability to fasten a seatbelt, wash your hair, or reach a back pocket, or a "minor tweak" has stiffened steadily over weeks. The earlier the stage is identified, the more treatment can change the trajectory.
Most cases of frozen shoulder arise without a clear trigger — that's primary adhesive capsulitis. Secondary cases follow a period of immobility: after shoulder surgery, a fracture, a stroke, or simply weeks in a sling. The strongest risk factors are age 40–60, female sex, diabetes (where frozen shoulder is several times more common and often more stubborn), thyroid disease, and a previous frozen shoulder on the other side.
The largest trial to date — UK FROST, a randomized comparison of 503 patients across 35 UK hospitals published in The Lancet — found that early structured physiotherapy with a steroid injection performed comparably to manipulation under anaesthesia and arthroscopic capsular release at 12 months, with no clinically meaningful difference between the three.[1] In other words: for most people, a structured conservative program achieves what surgery achieves, without the risks of an operation.
Timing matters. A 2020 systematic review and meta-analysis of 65 randomized trials in JAMA Network Open concluded that an intra-articular corticosteroid injection early in the course — combined with a home exercise program — maximizes the chance of recovery when symptoms have lasted less than a year.[2] That's why we coordinate with physicians when an injection fits, and why stage-matched loading — gentle in the irritable phase, progressively firmer as pain settles — is the backbone of care.[3] Aggressive stretching of a highly irritable shoulder, by contrast, tends to flare symptoms and stall progress.
Frozen shoulder care at RISE starts by confirming the diagnosis and staging it — because the right treatment for month two is the wrong treatment for month ten. Every session is 45 minutes one-on-one with the same Doctor of Physical Therapy.
Passive-motion and irritability testing confirm frozen shoulder and pinpoint the stage, so treatment matches the tissue.
Manual therapy, gentle range work, and pain-control strategies protect sleep and daily function while irritability settles.
Progressive capsular stretching and cuff strengthening reclaim overhead reach, back-pocket reach, and confidence.
One-on-one frozen shoulder care from a Doctor of Physical Therapy — no referral needed in Idaho.
Devon is a co-founder of RISE Physical Therapy and treats orthopedic, sports, post-surgical, concussion, and TMJ injuries. He earned his Doctorate of Physical Therapy at Idaho State University. Meet the full team →
