Empirical studies in the creative arts therapies (CATs; i.e., art therapy, dance/movement therapy, drama therapy, music therapy, psychodrama, and poetry/bibliotherapy) have grown rapidly in the last 10 years, documenting their positive impact on a wide range of psychological and physiological outcomes (e.g., stress, trauma, depression, anxiety, and pain). However, it remains unclear how and why the CATs have positive effects, and which therapeutic factors account for these changes. Research that specifically focuses on the therapeutic factors and/or mechanisms of change in CATs is only beginning to emerge. To gain more insight into how and why the CATs influence outcomes, we conducted a scoping review (Nstudies = 67) to pinpoint therapeutic factors specific to each CATs discipline, joint factors of CATs, and more generic common factors across all psychotherapy approaches. This review therefore provides an overview of empirical CATs studies dealing with therapeutic factors and/or mechanisms of change, and a detailed analysis of these therapeutic factors which are grouped into domains. A framework of 19 domains of CATs therapeutic factors is proposed, of which the three domains are composed solely of factors unique to the CATs: “embodiment,” “concretization,” and “symbolism and metaphors.” The terminology used in change process research is clarified, and the implications for future research, clinical practice, and CATs education are discussed.
Background: Many international clinical guidelines recommend therapeutic exercise as a core treatment for knee and hip osteoarthritis. We aimed to identify individual patient-level moderators of the effect of therapeutic exercise for reducing pain and improving physical function in people with knee osteoarthritis, hip osteoarthritis, or both. Methods: We did a systematic review and individual participant data (IPD) meta-analysis of randomised controlled trials comparing therapeutic exercise with non-exercise controls in people with knee osteoathritis, hip osteoarthritis, or both. We searched ten databases from March 1, 2012, to Feb 25, 2019, for randomised controlled trials comparing the effects of exercise with non-exercise or other exercise controls on pain and physical function outcomes among people with knee osteoarthritis, hip osteoarthritis, or both. IPD were requested from leads of all eligible randomised controlled trials. 12 potential moderators of interest were explored to ascertain whether they were associated with short-term (12 weeks), medium-term (6 months), and long-term (12 months) effects of exercise on self-reported pain and physical function, in comparison with non-exercise controls. Overall intervention effects were also summarised. This study is prospectively registered on PROSPERO (CRD42017054049). Findings: Of 91 eligible randomised controlled trials that compared exercise with non-exercise controls, IPD from 31 randomised controlled trials (n=4241 participants) were included in the meta-analysis. Randomised controlled trials included participants with knee osteoarthritis (18 [58%] of 31 trials), hip osteoarthritis (six [19%]), or both (seven [23%]) and tested heterogeneous exercise interventions versus heterogeneous non-exercise controls, with variable risk of bias. Summary meta-analysis results showed that, on average, compared with non-exercise controls, therapeutic exercise reduced pain on a standardised 0–100 scale (with 100 corresponding to worst pain), with a difference of –6·36 points (95% CI –8·45 to –4·27, borrowing of strength [BoS] 10·3%, between-study variance [τ2] 21·6) in the short term, –3·77 points (–5·97 to –1·57, BoS 30·0%, τ2 14·4) in the medium term, and –3·43 points (–5·18 to –1·69, BoS 31·7%, τ2 4·5) in the long term. Therapeutic exercise also improved physical function on a standardised 0–100 scale (with 100 corresponding to worst physical function), with a difference of –4·46 points in the short term (95% CI –5·95 to –2·98, BoS 10·5%, τ2 10·1), –2·71 points in the medium term (–4·63 to –0·78, BoS 33·6%, τ2 11·9), and –3·39 points in the long term (–4·97 to –1·81, BoS 34·1%, τ2 6·4). Baseline pain and physical function moderated the effect of exercise on pain and physical function outcomes. Those with higher self-reported pain and physical function scores at baseline (ie, poorer physical function) generally benefited more than those with lower self-reported pain and physical function scores at baseline, with the evidence most certain in the short term (12 weeks). Interpretation: There was evidence of a small, positive overall effect of therapeutic exercise on pain and physical function compared with non-exercise controls. However, this effect is of questionable clinical importance, particularly in the medium and long term. As individuals with higher pain severity and poorer physical function at baseline benefited more than those with lower pain severity and better physical function at baseline, targeting individuals with higher levels of osteoarthritis-related pain and disability for therapeutic exercise might be of merit. Funding: Chartered Society of Physiotherapy Charitable Trust and the National Institute for Health and Care Research.
Background: In face-to-face therapy for eating disorders, therapeutic alliance (TA) is an important predictor of symptomreduction and treatment completion. To date, however, little is known about TA during web-based cognitive behavioral therapy(web-CBT) and its association with symptom reduction, treatment completion, and the perspectives of patients versus therapists.Objective: This study aimed to investigate TA ratings measured at interim and after treatment, separately for patients andtherapists; the degree of agreement between therapists and patients (treatment completers and noncompleters) for TA ratings;and associations between patient and therapist TA ratings and both eating disorder pathology and treatment completion.Methods: A secondary analysis was performed on randomized controlled trial data of a web-CBT intervention for eatingdisorders. Participants were 170 females with bulimia nervosa (n=33), binge eating disorder (n=68), or eating disorder nototherwise specified (n=69); the mean age was 39.6 (SD 11.5) years. TA was operationalized using the Helping AllianceQuestionnaire (HAQ). Paired t tests were conducted to assess the change in TA from interim to after treatment. Intraclasscorrelations were calculated to determine cross-informant agreement with regard to HAQ scores between patients and therapists.A total of 2 stepwise regressive procedures (at interim and after treatment) were used to examine which HAQ scores predictedeating disorder pathology and therapy completion.Results: For treatment completers (128/170, 75.3%), the HAQ-total scores and HAQ-Helpfulness scores for both patients andtherapists improved significantly from interim to post treatment. For noncompleters (42/170, 24.7%), all HAQ scores decreasedsignificantly. For all HAQ scales, the agreement between patients and therapists was poor. However, the agreement was slightlybetter after treatment than at interim. Higher patient scores on the helpfulness subscale of the HAQ at interim and after treatmentwere associated with less eating disorder psychopathology. A positive association was found between the HAQ-total patientscores at interim and treatment completion. Finally, posttreatment HAQ-total patient scores and posttreatment HAQ-Helpfulnessscores of therapists were positively associated with treatment completion.Conclusions: Our study showed that TA in web-CBT is predictive of eating disorder pathology and treatment completion. Ofparticular importance is patients’ confidence in their abilities as measured with the HAQ-Helpfulness subscale when predictingposttreatment eating disorder pathology and treatment completion.
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