Psychologically informed physical therapy for musculoskeletal pain: current approaches, implications, and future directions from recent randomized trials

Key points

1. 0122 randomized trials across 4 PIPT types were reviewed: graded activity/exposure, cognitive-behavioral-based PT, acceptance and commitment-based PT, and internet-based programs combined with PT
2. 02Graded activity was not superior to other supervised exercise for chronic low back pain or whiplash across 5 trials
3. 03Cognitive-behavioral-based PT showed short-term benefits in some higher-quality trials (Bennell et al., Sterling et al., Vibe Fersum et al.) but 5 of 9 trials found no difference versus standard PT
4. 04Internet-based CBT programs added to PT did not improve outcomes beyond PT alone in either trial reviewed
5. 05PIPT efficacy may depend heavily on targeting patients with elevated psychosocial risk, therapist training intensity, and integration of skills within sessions

How it was conducted

Design

Narrative review of randomized controlled trials published since the 2012 Main and George PIPT article, using PICOS criteria and PubMed, CINAHL, and PsycINFO databases

Included studies

22 studies representing randomized trials on PIPT vs. standard physical therapy for adult musculoskeletal pain

Conditions

Chronic low back pain (n=8), chronic neck pain (n=2), chronic knee osteoarthritis (n=2), chronic whiplash (n=1), acute whiplash (n=1), chronic hip osteoarthritis (n=1), chronic pelvic pain (n=1), acute/subacute low back pain (n=1), mixed musculoskeletal pain (n=1)

Intervention categories

Graded activity or graded exposure (n=6), cognitive-behavioral-based PT (n=9), acceptance and commitment-based PT (n=1), internet-based psychological programs with PT (n=2)

Quality assessment

PEDro scale rated by two independent raters; majority of trials scored 6 or higher out of 10 (good to excellent)

Primary outcomes

Disability, physical function, and pain intensity measured at short-term (weeks to months) and long-term (1 year or more) follow-up

What they found

• Graded activity: none of 5 trials (Bello et al., Khan et al., Macedo et al., Magalhaes et al., Ludvigsson et al.) found significant between-group differences in disability, physical function, or pain versus standard supervised exercise
• Graded exposure (Ariza-Mateos et al., chronic pelvic pain): significant postintervention and 3-month improvement in disability (ODI) and 3-month pain (BPI) favoring graded exposure plus manual therapy over manual therapy alone
• Cognitive-behavioral PT (Bennell et al., knee OA): combined pain-coping skills training and exercise showed greater improvement in physical function (WOMAC) at 12 and 32 weeks versus exercise alone; at 52 weeks, greater improvement in pain intensity and WOMAC pain in the combined group
• Cognitive-behavioral PT (Sterling et al., acute whiplash): stress inoculation training plus exercise showed greater improvement in disability (NDI) and pain intensity (NRS 0-10) at all time points through 1 year versus exercise alone
• Cognitive-behavioral PT (Vibe Fersum et al., chronic low back pain): classification-based cognitive functional therapy showed significant improvements in disability (ODI) and pain at 3 weeks and 3 months; disability difference persisted at 3 years, pain difference did not persist at 3 years
• Cognitive-behavioral PT (Thompson et al., chronic neck pain): no significant between-group difference in disability (NPQ), but greater reduction in pain intensity (NRS) in the cognitive-behavioral group
• Five of 9 cognitive-behavioral PT trials found no significant between-group differences in disability, function, or pain
• Acceptance and commitment-based PT (Godfrey et al., chronic low back pain): PACT group showed greater improvement in disability (RMDQ) and physical function (PSFS) versus usual PT at 3 months; differences not maintained at 12 months; no differences in pain (NRS 0-10) at any time point
• Internet-based CBT (Petrozzi et al., mixed): no significant differences in disability (RMDQ), physical function (PSFS), or pain (NRS) between MoodGYM plus PT and PT alone
• Internet-based pain-coping skills (Bennell et al., hip OA): PainCOACH plus exercise showed immediately greater improvement in physical function (WOMAC) at 8 weeks only; no significant differences persisted at later time points and no differences in pain at any point

Limitations

• Narrative rather than meta-analytic design limits ability to pool effect sizes and quantify overall PIPT benefit
• Majority of studies did not specifically target patients with elevated psychosocial risk, which may dilute PIPT effects
• Therapist training levels varied widely across trials, and lower-quality trials with weaker training protocols tended to show null results, making it unclear how much efficacy depends on implementation fidelity
• Blinding of participants and therapists was not feasible in most trials, and some lower-quality studies had weaknesses in allocation concealment and follow-up rates

Why it matters

For patients

People with chronic musculoskeletal pain may benefit from seeing a physical therapist trained in cognitive-behavioral or acceptance-based strategies, especially if anxiety, fear of movement, or catastrophizing are affecting recovery, but these added benefits are not guaranteed and depend heavily on how the therapy is delivered.

For clinicians

Cognitive-behavioral-based physical therapy delivered with rigorous training, psychologist collaboration, and good implementation fidelity shows the most consistent short-term benefit for selected populations; graded activity and internet-based adjuncts have not demonstrated added value over standard exercise in recent trials.

For readers

PIPT is a promising but not yet robustly established care model; future research should focus on which patients benefit most, optimal dosing, and scalable implementation strategies including ACT and mindfulness approaches.