Physical Therapy: When It Helps and How Long It Takes

The defining characteristic is that it is an active treatment. The therapist assesses, prescribes and progresses, but the results come substantially from what you do between appointments.

What an initial assessment covers

A first appointment typically runs 45 to 60 minutes and involves history-taking, observation of movement, range of motion measurement, strength testing, special tests for specific structures, and functional assessment relevant to your goals.

The output should be a working diagnosis, a treatment plan with an expected number of visits, and goals stated in functional terms — climbing stairs without holding the rail, returning to a sport, lifting a specific weight. Goals framed as function rather than as pain scores tend to guide treatment better.

Conditions where evidence is reasonably strong

Post-operative rehabilitation after joint replacement, ligament reconstruction and rotator cuff repair is standard care with good supporting evidence, and outcomes correlate with adherence.

For chronic low back pain and neck pain, exercise therapy is recommended in guidelines. For knee osteoarthritis, exercise therapy has consistent evidence for pain and function, and is recommended before considering surgery.

Vestibular rehabilitation for certain forms of dizziness, and balance training for falls prevention in older adults, both have good evidence bases. Rotator cuff-related shoulder pain frequently responds to structured exercise, with several trials finding it comparable to surgery for specific presentations.

The home programme is the treatment

Clinic sessions are typically one to three hours weekly at most. The exercises done at home across the rest of the week constitute the majority of the therapeutic dose.

Studies of adherence to home exercise programmes consistently find it to be a substantial problem, and adherence is associated with outcomes. If a programme is too long or too complicated, say so — a shorter programme actually performed beats a comprehensive one that is not.

Ask for the programme in writing or with video, ask how to tell whether you are doing it correctly, and ask what level of discomfort is acceptable during exercise. Some discomfort is often expected; sharp or worsening pain is not.

Duration and expectations

Course length varies with the condition. Simple acute problems may need four to six visits over a few weeks. Post-surgical rehabilitation frequently runs three to six months with tapering frequency. Chronic conditions may involve an initial block followed by independent maintenance.

Improvement is rarely linear. Flare-ups during progression are common and do not necessarily indicate a setback. Tissue healing timeframes are biological constraints — soft tissue and bone heal on their own schedules regardless of enthusiasm.

Access and cost in the US

Most states allow direct access to physical therapy without a physician referral, though the extent varies and insurance may still require one for coverage. Check both the state rule and your plan's requirement.

Insurance commonly limits the number of visits per year, and copays apply per visit, which adds up. Ask the clinic to verify benefits before starting, and ask what a cash-pay rate would be, which is sometimes competitive with a high copay.

Where visit numbers are limited, a reasonable strategy is fewer supervised sessions focused on assessment, technique and progression, with more independent work between them.

Choosing a therapist

Look for relevant specialisation — orthopaedic, neurological, vestibular, pelvic health — since the field is broad. Board certification in a specialty area exists in the US and indicates additional training.

Ask how much of each session is one-to-one with the therapist versus with an aide or on machines, since clinic models vary considerably and one-to-one time is generally what you are paying for. Ask how progress will be measured and at what point the plan would be reconsidered if you are not improving.