Physiotherapy - Research Publications

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    "Sounds a Bit Crazy, But It Was Almost More Personal:" A Qualitative Study of Patient and Clinician Experiences of Physical Therapist-Prescribed Exercise For Knee Osteoarthritis Via Skype
    Hinman, RS ; Nelligan, RK ; Bennell, KL ; Delany, C (WILEY, 2017-12)
    OBJECTIVE: To explore the experience of patients and physical therapists with Skype for exercise management of knee osteoarthritis (OA). METHODS: This was a qualitative study. The Donabedian model for quality assessment in health care (structure, process, and outcomes) informed semistructured individual interview questions. The study involved 12 purposively sampled patients with knee OA who received physical therapist-prescribed exercise over Skype, and all therapists (n = 8) who delivered the intervention in a clinical trial were interviewed about their experiences. Interviews were audio recorded and transcribed. Two investigators undertook coding and analysis using a thematic approach. RESULTS: Six themes arose from both patients and therapists. The themes were Structure: technology (easy to use, variable quality, set-up assistance helpful) and patient convenience (time efficient, flexible, increased access); Process: empowerment to self-manage (facilitated by home environment and therapists focusing on effective treatment) and positive therapeutic relationships (personal undivided attention from therapists, supportive friendly interactions); and Outcomes: satisfaction with care (satisfying, enjoyable, patients would recommend, therapists felt Skype more useful as adjunct to usual practice) and patient benefits (reduced pain, improved function, improved confidence and self-efficacy). A seventh theme arose from therapists regarding process: adjusting routine treatment (need to modify habits, discomfort without hands-on, supported by research environment). CONCLUSION: Patients and physical therapists described mostly positive experiences using Skype as a service delivery model for physical therapist-supervised exercise management of moderate knee OA. Such a model is feasible and acceptable and has the potential to increase access to supervised exercise management for people with knee OA, either individually or in combination with traditional in-clinic visits.
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    Consumer Perceptions of and Willingness to Use Remotely Delivered Service Models For Exercise Management of Knee and Hip Osteoarthritis: A Cross-Sectional Survey
    Lawford, BJ ; Bennell, KL ; Hinman, RS (WILEY, 2017-05)
    OBJECTIVE: To investigate the perceptions of people with hip and/or knee osteoarthritis (OA) about the remote delivery of exercise therapy by a physical therapist. METHODS: A survey of people age ≥45 years with a clinical diagnosis of hip and/or knee OA was conducted. The survey comprised 3 sections, including 1) demographic information, 2) statements about receiving exercise via the telephone, and 3) statements about receiving exercise via video over the internet. Data were analyzed by calculating response proportions and evaluating levels of agreement with each statement. Exploratory binomial regression analyses were performed to determine whether participant characteristics influenced perceptions of tele-rehabilitation. RESULTS: A total of 330 people spanning metropolitan, regional, and rural Australia completed the survey. Respondents were in majority (≥50%) agreement with 13 of 17 statements, with most agreement about tele-rehabilitation saving time (telephone versus video: 78% versus 81%), being easy to use (79% versus 78%), and maintaining privacy (86% versus 82%). There was no consensus agreement with liking the lack of physical contact (telephone versus video: 20% agreement versus 22%), willingness to pay (32% versus 46%), belief that telephone-delivered exercise would be effective (45%), and belief that a physical therapist could adequately monitor OA over the telephone (42%). CONCLUSION: People with knee and/or hip OA hold mostly positive perceptions about tele-rehabilitation, delivered via the telephone or by video over the internet, for provision of physical therapist-prescribed exercise services. There was concern about the lack of physical contact with the therapist when using tele-rehabilitation.
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    Telephone Coaching to Enhance a Home-Based Physical Activity Program for Knee Osteoarthritis: A Randomized Clinical Trial
    Bennell, KL ; Campbell, PK ; Egerton, T ; Metcalf, B ; Kasza, J ; Forbes, A ; Bills, C ; Gale, J ; Harris, A ; Kolt, GS ; Bunker, SJ ; Hunter, DJ ; Brand, CA ; Hinman, RS (WILEY, 2017-01)
    OBJECTIVE: To investigate whether simultaneous telephone coaching improves the clinical effectiveness of a physiotherapist-prescribed home-based physical activity program for knee osteoarthritis (OA). METHODS: A total of 168 inactive adults ages ≥50 years with knee pain on a numeric rating scale ≥4 (NRS; range 0-10) and knee OA were recruited from the community and randomly assigned to a physiotherapy (PT) and coaching group (n = 84) or PT-only (n = 84) group. All participants received five 30-minute consultations with a physiotherapist over 6 months for education, home exercise, and physical activity advice. PT+coaching participants also received 6-12 telephone coaching sessions by clinicians trained in behavioral-change support for exercise and physical activity. Primary outcomes were pain (NRS) and physical function (Western Ontario and McMaster Universities Osteoarthritis Index [WOMAC; score range 0-68]) at 6 months. Secondary outcomes were these same measures at 12 and 18 months, as well as physical activity, exercise adherence, other pain and function measures, and quality of life. Analyses were intent-to-treat with multiple imputation for missing data. RESULTS: A total of 142 (85%), 136 (81%), and 128 (76%) participants completed 6-, 12-, and 18-month measurements, respectively. The change in NRS pain (mean difference 0.4 unit [95% confidence interval (95% CI) -0.4, 1.3]) and in WOMAC function (1.8 [95% CI -1.9, 5.5]) did not differ between groups at 6 months, with both groups showing clinically relevant improvements. Some secondary outcomes related to physical activity and exercise behavior favored PT+coaching at 6 months but generally not at 12 or 18 months. There were no between-group differences in most other outcomes. CONCLUSION: The addition of simultaneous telephone coaching did not augment the pain and function benefits of a physiotherapist-prescribed home-based physical activity program.
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    Coordination of deep hip muscle activity is altered in symptomatic femoroacetabular impingement
    Diamond, LE ; Van den Hoorn, W ; Bennell, KL ; Wrigley, TV ; Hinman, RS ; O'Donnell, J ; Hodges, PW (WILEY, 2017-07)
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    Patient Knowledge and Beliefs About Knee Osteoarthritis After Anterior Cruciate Ligament Injury and Reconstruction
    Bennell, KL ; van Ginckel, A ; Kean, CO ; Nelligan, RK ; French, SD ; Stokes, M ; Pietrosimone, B ; Blackburn, T ; Batt, M ; Hunter, DJ ; Spiers, L ; Hinman, RS (WILEY-BLACKWELL, 2016-08)
    OBJECTIVE: To explore patients' knowledge and beliefs about osteoarthritis (OA) and OA risk following anterior cruciate ligament (ACL) injury, to explore the extent to which information about these risks is provided by health professionals, and to examine associations among participant characteristics, knowledge, and risk beliefs and health professional advice. METHODS: A custom-designed survey was conducted in Australian and American adults who sustained an ACL injury, with or without reconstruction, 1-5 years prior. The survey comprised 3 sections: participant characteristics, knowledge about OA and OA risk, and health professional advice. RESULTS: Complete data sets from 233 eligible respondents were analyzed. Most (70%, n = 164) rated themselves as being at greater risk of OA than their healthy peers, although only 56% (n = 130) were able to identify the correct OA definition. While most agreed that ACL (73%, n = 168) and/or meniscal injuries (n = 181, 78%) increase the risk of OA, 65% (n = 152) believed that ACL reconstruction reduced the risk of OA, or they did not know. A total of 27% (n = 62) recalled discussing their OA risk with a health professional. Participants who were female, younger, or had a lower body mass index or higher physical activity level were more likely to recognize meniscal tears and meniscectomy as risk factors of OA. A history of professional advice was associated with beliefs about increased OA risks. CONCLUSION: Patients sustaining an ACL injury require better education from health professionals about OA as a disease entity and their elevated risk of OA, irrespective of whether or not they undergo surgical reconstruction.
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    Physical Therapist-Delivered Pain Coping Skills Training and Exercise for Knee Osteoarthritis: Randomized Controlled Trial
    Bennell, KL ; Ahamed, Y ; Jull, G ; Bryant, C ; Hunt, MA ; Forbes, AB ; Kasza, J ; Akram, M ; Metcalf, B ; Harris, A ; Egerton, T ; Kenardy, JA ; Nicholas, MK ; Keefe, FJ (WILEY, 2016-05)
    OBJECTIVE: To investigate whether a 12-week physical therapist-delivered combined pain coping skills training (PCST) and exercise (PCST/exercise) is more efficacious and cost effective than either treatment alone for knee osteoarthritis (OA). METHODS: This was an assessor-blinded, 3-arm randomized controlled trial in 222 people (73 PCST/exercise, 75 exercise, and 74 PCST) ages ≥50 years with knee OA. All participants received 10 treatments over 12 weeks plus a home program. PCST covered pain education and training in cognitive and behavioral pain coping skills, exercise comprised strengthening exercises, and PCST/exercise integrated both. Primary outcomes were self-reported average knee pain (visual analog scale, range 0-100 mm) and physical function (Western Ontario and McMaster Universities Osteoarthritis Index, range 0-68) at week 12. Secondary outcomes included other pain measures, global change, physical performance, psychological health, physical activity, quality of life, and cost effectiveness. Analyses were by intent-to-treat methodology with multiple imputation for missing data. RESULTS: A total of 201 participants (91%), 181 participants (82%), and 186 participants (84%) completed week 12, 32, and 52 measurements, respectively. At week 12, there were no significant between-group differences for reductions in pain comparing PCST/exercise versus exercise (mean difference 5.8 mm [95% confidence interval (95% CI) -1.4, 13.0]) and PCST/exercise versus PCST (6.7 mm [95% CI -0.6, 14.1]). Significantly greater improvements in function were found for PCST/exercise versus exercise (3.7 units [95% CI 0.4, 7.0]) and PCST/exercise versus PCST (7.9 units [95% CI 4.7, 11.2]). These differences persisted at weeks 32 (both) and 52 (PCST). Benefits favoring PCST/exercise were seen on several secondary outcomes. Cost effectiveness of PCST/exercise was not demonstrated. CONCLUSION: This model of care could improve access to psychological treatment and augment patient outcomes from exercise in knee OA, although it did not appear to be cost effective.
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    T2*Mapping of Subtalar Cartilage: Precision and Association Between Anatomical Variants and Cartilage Composition
    Van Ginckel, A ; De Mits, S ; Bennell, KL ; Bryant, AL ; Witvrouw, EE (WILEY-BLACKWELL, 2016-11)
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    Barriers and Facilitators to Exercise Participation in People with Hip and/or Knee Osteoarthritis: Synthesis of the Literature Using Behavior Change Theory
    Dobson, F ; Bennell, KL ; French, SD ; Nicolson, PJA ; Klaasman, RN ; Holden, MA ; Atkins, L ; Hinman, RS (LIPPINCOTT WILLIAMS & WILKINS, 2016-05)
    Exercise is recommended for hip and knee osteoarthritis (OA). Patient initiation of, and adherence to, exercise is key to the success of managing symptoms. This study aimed to (1) identify modifiable barriers and facilitators to participation in intentional exercise in hip and/or knee OA, and (2) synthesize findings using behavior change theory. A scoping review with systematic searches was conducted through March 2015. Two reviewers screened studies for eligibility. Barriers and facilitators were extracted and synthesized according to the Theoretical Domains Framework (TDF) by two independent reviewers. Twenty-three studies (total of 4633 participants) were included. The greatest number of unique barriers and facilitators mapped to the Environmental Context and Resources domain. Many barriers were related to Beliefs about Consequences and Beliefs about Capabilities, whereas many facilitators were related to Reinforcement. Clinicians should take a proactive role in facilitating exercise uptake and adherence, rather than trusting patients to independently overcome barriers to exercise. Strategies that may be useful include a personalized approach to exercise prescription, considering environmental context and available resources, personalized education about beneficial consequences of exercise and reassurance about exercise capability, and use of reinforcement strategies. Future research should investigate the effectiveness of behavior change interventions that specifically target these factors.
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    Strength Training for Arthritis Trial (START): design and rationale
    Messier, SP ; Mihalko, SL ; Beavers, DP ; Nicklas, BJ ; DeVita, P ; Carr, JJ ; Hunter, DJ ; Williamson, JD ; Bennell, KL ; Guermazi, A ; Lyles, M ; Loeser, RF (BMC, 2013-07-15)
    BACKGROUND: Muscle loss and fat gain contribute to the disability, pain, and morbidity associated with knee osteoarthritis (OA), and thigh muscle weakness is an independent and modifiable risk factor for it. However, while all published treatment guidelines recommend muscle strengthening exercise to combat loss of muscle mass and strength in knee OA patients, previous strength training studies either used intensities or loads below recommended levels for healthy adults or were generally short, lasting only 6 to 24 weeks. The efficacy of high-intensity strength training in improving OA symptoms, slowing progression, and affecting the underlying mechanisms has not been examined due to the unsubstantiated belief that it might exacerbate symptoms. We hypothesize that in addition to short-term clinical benefits, combining greater duration with high-intensity strength training will alter thigh composition sufficiently to attain long-term reductions in knee-joint forces, lower pain levels, decrease inflammatory cytokines, and slow OA progression. METHODS/DESIGN: This is an assessor-blind, randomized controlled trial. The study population consists of 372 older (age ≥ 55 yrs) ambulatory, community-dwelling persons with: (1) mild-to-moderate medial tibiofemoral OA (Kellgren-Lawrence (KL) = 2 or 3); (2) knee neutral or varus aligned knee ( -2° valgus ≤ angle ≤ 10° varus); (3) 20 kg.m-2 ≥ BMI ≤ 45 kg.m-2; and (3) no participation in a formal strength-training program for more than 30 minutes per week within the past 6 months. Participants are randomized to one of 3 groups: high-intensity strength training (75-90% 1Repetition Maximum (1RM)); low-intensity strength training (30-40%1RM); or healthy living education. The primary clinical aim is to compare the interventions' effects on knee pain, and the primary mechanistic aim is to compare their effects on knee-joint compressive forces during walking, a mechanism that affects the OA disease pathway. Secondary aims will compare the interventions' effects on additional clinical measures of disease severity (e.g., function, mobility); disease progression measured by x-ray; thigh muscle and fat volume, measured by computed tomography (CT); components of thigh muscle function, including hip abductor strength and quadriceps strength, and power; additional measures of knee-joint loading; inflammatory and OA biomarkers; and health-related quality of life. DISCUSSION: Test-retest reliability for the thigh CT scan was: total thigh volume, intra-class correlation coefficients (ICC) = 0.99; total fat volume, ICC = 0.99, and total muscle volume, ICC = 0.99. ICC for both isokinetic concentric knee flexion and extension strength was 0.93, and for hip-abductor concentric strength was 0.99. The reliability of our 1RM testing was: leg press, ICC = 0.95; leg curl, ICC = 0.99; and leg extension, ICC = 0.98. Results of this trial will provide critically needed guidance for clinicians in a variety of health professions who prescribe and oversee treatment and prevention of OA-related complications. Given the prevalence and impact of OA and the widespread availability of this intervention, assessing the efficacy of optimal strength training has the potential for immediate and vital clinical impact. TRIAL REGISTRATION: ClinicalTrials.gov, NCT01489462.
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    Effects of rehabilitative interventions on pain, function and physical impairments in people with hand osteoarthritis: a systematic review
    Ye, L ; Kalichman, L ; Spittle, A ; Dobson, F ; Bennell, K (BMC, 2011)
    INTRODUCTION: Hand osteoarthritis (OA) is associated with pain, reduced grip strength, loss of range of motion and joint stiffness leading to impaired hand function and difficulty with daily activities. The effectiveness of different rehabilitation interventions on specific treatment goals has not yet been fully explored. The objective of this systematic review is to provide evidence based knowledge on the treatment effects of different rehabilitation interventions for specific treatment goals for hand OA. METHODS: A computerized literature search of Medline, the Cumulative Index to Nursing and Allied Health Literature (CINAHL), ISI Web of Science, the Physiotherapy Evidence Database (PEDro) and SCOPUS was performed. Studies that had an evidence level of 2b or higher and that compared a rehabilitation intervention with a control group and assessed at least one of the following outcome measures - pain, physical hand function or other measures of hand impairment - were included. The eligibility and methodological quality of trials were systematically assessed by two independent reviewers using the PEDro scale. Treatment effects were calculated using standardized mean difference and 95% confidence intervals. RESULTS: Ten studies, of which six were of higher quality (PEDro score >6), were included. The rehabilitation techniques reviewed included three studies on exercise, two studies each on laser and heat, and one study each on splints, massage and acupuncture. One higher quality trial showed a large positive effect of 12-month use of a night splint on hand pain, function, strength and range of motion. Exercise had no effect on hand pain or function although it may be able to improve hand strength. Low level laser therapy may be useful for improving range of motion. No rehabilitation interventions were found to improve stiffness. CONCLUSIONS: There is emerging high quality evidence to support that rehabilitation interventions can offer significant benefits to individuals with hand OA. A summary of the higher quality evidence is provided to assist with clinical decision making based on current evidence. Further high-quality research is needed concerning the effects of rehabilitation interventions on specific treatment goals for hand OA.