Background and PurposeMulligan's mobilization with movement was shown to be effective when implemented in multimodal therapy for knee osteoarthritis. However, no study has evaluated the Mulligan's technique in isolation and compared the relative effectiveness with sham‐controlled interventions. Hence, the present study examined the immediate effects of Mulligan's techniques with sham mobilization on the numerical pain rating scale (NPRS) and timed up and go (TUG) test in individuals with knee osteoarthritis.MethodsThirty participants (mean age: 55.3 ± 8.3 years) with symptoms at the knee and radiographic diagnosis of knee osteoarthritis were randomized into sham (n = 15) and intervention (n = 15) groups. The intervention (I) group received Mulligan's mobilization glides that resulted in relative pain relief for three sets of 10 repetitions. For the sham (S) group, the therapist's hand was placed over the joint surfaces mimicking the pain‐relieving glides, without providing the gliding force. The outcome measures NPRS and TUG were recorded by a blinded assessor pre‐ and post‐intervention.ResultsStatistically significant differences were identified between the groups in post‐intervention median (interquartile range) NPRS (I group: 4.00 [2.00–5.00]; S group: 6.00 [4.00–7.00]) and TUG scores (I group: 10.9 [9.43–10.45]; S group: 13.18 [10.38–16.00]) with the intervention group demonstrating better outcomes (p < .05). Within‐group, the post‐intervention scores of NPRS and TUG were significantly lower (p < .05) compared to the pre‐intervention scores in the intervention group. In the sham group, a statistically significant pre–post change was noticed only in the NPRS scores but not in the TUG scores.ConclusionMulligan's techniques were effective in improving pain and functional mobility in individuals with knee osteoarthritis. The underlying mechanisms for observed effects must be examined further, as participants reported pain relief following sham mobilization.

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Objective: The objective of the review is to determine whether conditioned pain modulation (CPM) is impaired in adults with chronic low back pain (CLBP) when compared with pain-free individuals. Methods: A a systematic search of the literature was undertaken using the databases: MEDLINE, Scopus, CINAHL and Web of Science. The citations of included studies were reviewed for additional studies. Observational, cross-sectional, case-control studies published in English between January 1990 and August 2019 were considered. Studies that investigated the efficiency of standardized CPM regimens among defined cases of CLBP and in comparison, with pain-free controls were included. After initial title and abstract screening, 2 authors reviewed the full texts of the eligible articles independently. Risk of bias was carried out using assessment of 4 categories: blinding of the outcome assessors, representativeness of cases to the specified population, comparability of cases and controls, and control of confounding variables. Results: In total, 643 records were identified, of which 7 studies were included. Overall, the results of the studies reported mixed conclusions on the efficiency of CPM in CLBP. Three studies identified significant differences for CPM between CLBP and pain-free controls and the other 4 studies reported no significant differences. The common methodological limitations were unclear reporting about blinding of the outcome assessors and inadequate control of confounding factors. Conclusions: High-quality research is strongly recommended to determine the function of endogenous pain modulatory mechanisms in CLBP.

Neck pain is a common condition with several proposed biomechanical contributing factors. Thoracic spine dysfunction is hypothesized as one of the predisposing factors, which necessitates the need to explore the contribution of thoracic posture and mobility toward neck pain. Accordingly, the present work aimed to review the existing literature investigating the presence of thoracic spine dysfunction in individuals with neck pain. A literature search was conducted in the three electronic databases of PubMed, CINAHL, and Web of Science. Studies published between 1990 and 2017 were considered. After reviewing the abstracts, two authors independently scrutinized the full-text documents for their relevance. The initial search yielded 2,167 articles, of which nine studies involving comparisons of neck pain patients and healthy controls were identified for the review. Increased thoracic kyphosis was positively correlated with the presence of forward head posture but not uniformly associated with neck pain intensity and disability. Thoracic mobility was reduced in the neck pain population, and the role of thoracic kyphosis as a risk factor for pain development could not be confirmed. Thus, an association exists between thoracic kyphosis and postural alteration in the cervical spine. The review favors the inclusion of thoracic spine assessment and treatment in mechanical neck pain patients. Further studies are needed to investigate the cause-effect relationship between thoracic posture and cervical dysfunction.

Background and Purpose: Osteoarthritis (OA) of the knee joint results in chronic pain and functional decline among older adults. Hip muscle weakness has been observed in persons with knee OA and is claimed to increase the medial compartment loading on the knee joint. Although individual studies are available, no review has yet integrated the literature on the benefits of hip muscle strengthening for persons with knee OA. This review aims to systematically summarize the current evidence on the effectiveness of hip muscle strengthening on knee pain, lower extremity function, and biomechanical measures of the knee in persons with knee OA. Methods: An extensive electronic literature search was conducted in the databases PubMed, Scopus, Cumulative Index to Nursing and Allied Health (CINAHL), Cochrane Central Register of Controlled Trials (CENTRAL), and Physiotherapy Evidence Database (PEDro) to identify the published trials in the English language from January 1990 to August 2017. Randomized controlled trials that studied the effectiveness of hip muscle strengthening in persons with knee OA on knee pain, physical function, and biomechanical measures of the knee were considered for inclusion. The key word combinations were knee osteoarthritis, degenerative arthritis, arthralgia, muscle strengthening, and resistance training using the Boolean operators AND, OR. Two reviewers independently performed the study selection, and a third reviewer intervened when the consensus was not attained. Quality assessment of the included studies was carried out using the PEDro scale. Results and Discussion: The search produced 774 results, from which 81 full-text articles were studied. Five randomized controlled trials of good methodological quality, including 331 participants, were included in the review. The effectiveness of hip muscle strengthening was assessed in isolation, combination, and comparison with other lower extremity exercise. Overall, the studies reported clear benefits of hip muscle strengthening on knee pain, physical function, and hip muscle strength. However, hip muscle strengthening was ineffective in improving the biomechanical measures such as dynamic alignment and knee adduction (also known as valgus) moment. Conclusion: The current review identified strong, high-quality evidence to recommend hip muscle strengthening in the conservative management of persons with knee OA. Further research is needed to establish the underlying mechanisms for the clinical benefits.