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1.
J Biomech ; 166: 112048, 2024 Mar.
Article in English | MEDLINE | ID: mdl-38493577

ABSTRACT

Tendon xanthoma and altered mechanical properties have been demonstrated in people with familial hypercholesterolaemia. However, it is unclear whether mild, untreated hypercholesterolaemia alters musculotendinous mechanical properties and muscle architecture. We conducted a case-control study of adults aged 50 years and over, without lower limb injury or history of statin medication. Based on fasting low-density lipoprotein (LDL) cholesterol levels, 6 participants had borderline high LDL (>3.33 mmol/L) and 6 had optimal LDL cholesterol (<2.56 mmol/L). Using shear wave elastography, shear wave velocity (SWV) of the Achilles tendon and gastrocnemius medialis muscle (a proxy for stiffness), along with muscle fascicle length and pennation angle were measured under four passive tensile loads (0, 0.5, 1.0, 1.5 kg) applied via a pulley system. Differences between groups were found for tendon SWV but not muscle SWV, fascicle length or pennation angle. Participants with hypercholesterolaemia showed greater SWV (mean difference, 95 % CI: 2.4 m/s, 0.9 to 4.0, P = 0.024) compared to the control group across all loads. These findings suggest that adults with mild hypercholesterolaemia have increased tendon stiffness under low passive loads, while muscle was not affected. Future research is needed to confirm findings in a larger cohort and explore the impact of hypercholesterolaemia on tendon fatigue injury and tendinopathy.


Subject(s)
Achilles Tendon , Hypercholesterolemia , Tendon Injuries , Adult , Humans , Middle Aged , Aged , Achilles Tendon/physiology , Case-Control Studies , Ultrasonography , Muscle, Skeletal/physiology
2.
Aust J Gen Pract ; 53(3): 93-98, 2024 03.
Article in English | MEDLINE | ID: mdl-38437648

ABSTRACT

BACKGROUND AND OBJECTIVES: People with diabetic peripheral neuropathy (DPN) report fluctuating foot symptoms. This study used ecological momentary assessment to: (1) compare foot symptoms between days, time points and periods with/without preceding physical activity or pain medication; and (2) determine relationships between symptoms and endogenous pain modulation. METHOD: Ten low-active Australian adults with probable DPN underwent temporal summation of pain (TSP) and conditioned pain modulation (CPM) then completed mobile phone surveys five times daily for seven days, where they recorded the intensity of six foot symptoms and whether they performed physical activity or consumed pain medication in the preceding three hours.  RESULTS: All foot symptoms except numbness were greater in periods following physical activity, whereas periods following pain medication showed greater shooting pain. TSP showed very large correlations with sensitivity to touch, burning pain, shooting pain and prickling/tingling.  DISCUSSION: General practitioners should be aware that physical activity might exacerbate symptoms of DPN when encouraging their patients to be active.


Subject(s)
Diabetes Mellitus , Diabetic Neuropathies , Adult , Humans , Diabetic Neuropathies/complications , Ecological Momentary Assessment , Australia , Pain/etiology , Exercise
3.
Aust J Gen Pract ; 52(11): 771-777, 2023 11.
Article in English | MEDLINE | ID: mdl-37935148

ABSTRACT

BACKGROUND AND OBJECTIVES: People with diabetic peripheral neuropathy (DPN) report difficulty exercising. This study tested an innovative intervention to promote physical activity self-management and its impact on foot symptoms. METHOD: Ten adults with DPN not meeting exercise guidelines consented to four weekly sessions involving exercise tasters, behaviour change counselling and Physical Activity Intelligence (PAI) self-monitoring, with a goal to maintain daily PAI scores ≥100. Foot symptoms were assessed using repeated mobile phone surveys at 0 and 12 weeks. RESULTS: Participants attended a mean 3.5 sessions and achieved 100 PAI on 53% and 15% of days during Weeks 2-4 and 5-12, respectively. No major adverse events and large reductions in aching (P=0.02) and burning pain (P=0.03) in the feet were recorded. DISCUSSION: The PAI eHealth intervention was feasible and safe and might reduce foot symptoms. More work is needed to support self-directed exercise maintenance.


Subject(s)
Diabetes Mellitus , Diabetic Neuropathies , Adult , Humans , Diabetic Neuropathies/therapy , Diabetic Neuropathies/diagnosis , Feasibility Studies , Exercise , Foot , Exercise Therapy
4.
J Hand Ther ; 36(4): 932-939, 2023.
Article in English | MEDLINE | ID: mdl-37777443

ABSTRACT

BACKGROUND: Following injury to the Triangular Fibrocartilage Complex (TFCC), foveal repair surgery may be indicated to restore joint stability and function. Protection of the repaired ligament is a clinical consideration during post-surgical rehabilitation, although no "gold standard" rehabilitation protocol currently exists. PURPOSE: To describe the professional opinions of Accredited Hand Therapists (AHT) regarding post-operative rehabilitation recommendations following TFCC foveal repair surgery. STUDY DESIGN: Cross-sectional descriptive study. METHODS: All Australian AHTs were invited to complete a quantitative, online, 10-item survey between December 2019 and March 2020. The survey included questions regarding clinical recommendations for wrist and forearm immobilization, range of motion and exercise methods, and timeframes. AHT characteristics and experience of patients sustaining a TFCC re-rupture were also collected. Categorical and nominal survey responses were reported descriptively and effects of AHT characteristics on survey responses were assessed using Pearson Chi2, with significance set to <0.05. RESULTS: Survey responses were received from 135 AHTs or approximately 37% of the available population at the time of completion (March 2020). Recommendations for post-surgery immobilization ranged from "not required" to 8 weeks, 6 weeks representing the most common answer. Wrist and forearm range of motion commencement time ranged from "immediately" to "later than 8 weeks," with 6 weeks also the most common answer. When asked whether post-surgery rupture had been experienced in their respective patient groups, 15 therapists (11%) indicated "Yes." The most recommended thermoplastic orthosis was a Sugartong orthosis (41%) followed by a Muenster orthosis (30%), both of which immobilizes the wrist and forearm. CONCLUSIONS: Rehabilitation varied widely between AHTs. Further prospective research is recommended to explore whether patient-related or rehabilitation factors influence outcomes following TFCC repair.


Subject(s)
Triangular Fibrocartilage , Wrist Injuries , Humans , Triangular Fibrocartilage/injuries , Cross-Sectional Studies , Australia , Wrist Joint , Forearm , Wrist Injuries/surgery , Arthroscopy/methods
5.
Diabetes Res Clin Pract ; 200: 110701, 2023 Jun.
Article in English | MEDLINE | ID: mdl-37172647

ABSTRACT

AIMS: To determine the efficacy of two doses of external counterpulsation (ECP) on glycemic control in people with type 2 diabetes mellitus (T2D), and any persistent benefits 7 weeks following treatment. METHODS: 50 participants with T2D were randomly assigned to either 1) 20x45-minute ECP sessions over 7 weeks (ECP45), 2) 20x30-minute ECP sessions over 7 weeks (ECP30) or 3) SHAM control. Outcomes were assessed at baseline, after 7 weeks of the intervention and 7 weeks after the interventions finished. Efficacy was determined from changes in HbA1c. RESULTS: After 7 weeks, there were significant between-group differences, with ECP45 lowering HbA1c compared to SHAM (mean [95% CI] -0.7 [-0.1 to -1.3] %; -7 [-1 to -15] mmol/mol). Within group changes were; ECP45 (mean ± SD -0.8 ± 0.8%; -8 ± 8 mmol/mol), ECP30 (-0.2 ± 0.5%; -2 ± 6 mmol/mol) and SHAM (-0.1 ± 0.9%; -1 ± 10 mmol/mol). HbA1c in the ECP45 group remained lower 7 weeks after completing the intervention; ECP45 (7.0 ± 1.1%; 53 ± 26 mmol/mol), ECP30 (7.7 ± 1.4%; 60 ± 16 mmol/mol) and SHAM (7.7 ± 1.0%; 60 ± 10 mmol/mol). CONCLUSIONS: In people with T2D, ECP45 for 7 weeks improved glycemic control when compared to ECP30 and a SHAM control group.


Subject(s)
Diabetes Mellitus, Type 2 , Humans , Diabetes Mellitus, Type 2/drug therapy , Hypoglycemic Agents/therapeutic use , Blood Glucose , Glycemic Control , Glycated Hemoglobin , Treatment Outcome
6.
J Electromyogr Kinesiol ; 69: 102754, 2023 Apr.
Article in English | MEDLINE | ID: mdl-36773478

ABSTRACT

Assessing muscle mechanical properties in terms of stiffness may provide important insights into mechanisms underlying work-related neck pain. This study compared stiffness of cervical and axioscapular muscles between 92 participants (sonographers) with no (n = 31), mild (n = 43) or moderate/severe (n = 18) neck disability. It was hypothesized that participants with more severe neck pain and disability would present with altered distribution of stiffness in cervical and axioscapular muscles than those with no disability. Using shear wave elastography, the shear modulus (kPa) of five cervical and six axioscapular muscles or muscle segments were measured in a relaxed seated upright or side-lying position. Muscle activity was measured simultaneously using surface electromyography during the elastography measurements and scapular depression was measured using a measurement tape and inclinometer before the elastography measurements to evaluate their potential confounding influences on shear modulus. Increased shear modulus was found in deeper than superficial cervical muscles and more cranial than caudal axioscapular muscles. However, no differences in shear modulus of the cervical or axioscapular muscles were found between sonographers with varying levels of disability. This study suggests no alterations in stiffness of cervical and axioscapular muscles were associated with work-related neck pain and disability.


Subject(s)
Elasticity Imaging Techniques , Humans , Neck Pain/diagnostic imaging , Muscle, Skeletal/diagnostic imaging , Muscle, Skeletal/physiology , Scapula , Neck Muscles/diagnostic imaging , Neck Muscles/physiology
7.
J Hand Ther ; 36(1): 179-195, 2023.
Article in English | MEDLINE | ID: mdl-34972604

ABSTRACT

STUDY DESIGN: Scoping review. BACKGROUND: Rehabilitation guidelines following triangular fibrocartilage complex (TFCC) foveal repair surgery have been inconsistently reported in the published literature, with no consensus regarding wrist or forearm range of motion (ROM) commencement time. PURPOSE OF THE STUDY: To scope the available literature to identify the extent and strength of the evidence supporting the clinical guidelines for wrist and forearm ROM commencement time following primary TFCC foveal repair surgery. METHODS: A systematic search produced 26 studies (3 retrospective cohort studies, 1 prospective cohort study, 1 retrospective comparative study, and 21 retrospective case series) that described specific rehabilitation protocols following TFCC foveal repair surgery. RESULTS: No supporting evidence was identified regarding rehabilitation protocol recommendations across all the included studies. Postsurgery wrist ROM commencement ranged from 2 to 8 weeks; forearm ROM commencement ranged from 2 to 12 weeks. ROM commencement times did not appear to systematically influence the rate of adverse events, although adverse events were poorly reported. CONCLUSIONS: TFCC rehabilitation protocols were poorly reported and varied widely between the included studies. Additional research is recommended to comprehensively evaluate the association between wrist and/or forearm ROM and the rate of adverse events for this complex and multifaceted condition.


Subject(s)
Triangular Fibrocartilage , Wrist Injuries , Humans , Triangular Fibrocartilage/surgery , Retrospective Studies , Wrist , Forearm , Prospective Studies , Wrist Injuries/surgery , Wrist Joint/surgery , Range of Motion, Articular , Arthroscopy/methods
8.
J Orthop Sports Phys Ther ; 52(6): 375-388, 2022 06.
Article in English | MEDLINE | ID: mdl-35647878

ABSTRACT

OBJECTIVE: To identify and describe the psychological and psychosocial constructs and outcome measures used in tendinopathy research. DESIGN: Scoping review. LITERATURE SEARCH: We searched the PubMed, EMBASE, Scopus, Web of Science, PEDro, CINAHL, and APA PsychNet databases on July 10, 2021, for all published studies of tendinopathy populations measuring psychological and psychosocial factors. STUDY SELECTION: Studies using a clinical diagnosis of tendinopathy or synonyms (eg, jumper's knee or subacromial impingement) with or without imaging confirmation. DATA SYNTHESIS: We described the volume, nature, distribution, and characteristics of psychological and psychosocial outcomes reported in the tendinopathy field. RESULTS: Twenty-nine constructs were identified, including 16 psychological and 13 psychosocial constructs. The most frequently-reported constructs were work-related outcomes (32%), quality of life (31%), depression (30%), anxiety (18%), and fear (14%). Outcome measures consisted of validated and nonvalidated questionnaires and 1-item custom questions (including demographics). The number of different outcome measures used to assess an individual construct ranged between 1 (emotional distress) and 11 (quality of life) per construct. CONCLUSION: There was a large variability in constructs and outcome measures reported in tendinopathy research, which limits conclusions about the relationship between psychological and psychosocial constructs, outcome measures, and tendinopathies. Given the wide range of psychological and psychosocial constructs reported, there is an urgent need to develop a core outcome set in tendinopathy. J Orthop Sports Phys Ther 2022;52(6):375-388. doi:10.2519/jospt.2022.11005.


Subject(s)
Quality of Life , Tendinopathy , Anxiety/psychology , Fear , Humans , Outcome Assessment, Health Care , Tendinopathy/therapy
9.
Neuroscience ; 496: 141-151, 2022 08 01.
Article in English | MEDLINE | ID: mdl-35710065

ABSTRACT

Acute pain alters motor unit discharge properties in muscles that are painful or influence loading of painful structures. Less is known about the changes in discharge when pain is induced in distant tissues that are unable or have limited capacity to modify the load of the contracting muscle. We aimed to determine whether acute experimental pain alters quadriceps motor unit discharge when pain is induced in; (i) a muscle that is unlikely to be mechanically influenced by modified quadriceps activity (tibialis anterior: TA), or (ii) the antagonist muscle (biceps femoris: BF). Using a within-subject design, 16 adults performed force-matched isometric knee extension during pain-free control conditions, and trials after painful hypertonic saline injections into TA or BF. Surface and intramuscular electromyography recordings were made. Despite maintained force, discharge rate of quadriceps motor units was lower during Pain than Control conditions for TA and BF trials (both P < 0.001). Redistribution of motor unit activity was observed; some units were recruited in control or pain but not both. As modified quadriceps motor unit discharge has limited/no potential to modify load in the painful tissue to protect the painful part, the findings might support an alternative hypothesis that activity is redistributed to larger motor units.


Subject(s)
Acute Pain , Recruitment, Neurophysiological , Adult , Electromyography , Humans , Isometric Contraction/physiology , Motor Neurons/physiology , Muscle Contraction/physiology , Muscle, Skeletal/physiology , Recruitment, Neurophysiological/physiology
10.
Phys Ther ; 102(6)2022 06 03.
Article in English | MEDLINE | ID: mdl-35485191

ABSTRACT

OBJECTIVE: Given the economic burden of work-related neck pain and disability, it is important to understand its time course and associated risk factors to direct better management strategies. This study aimed to identify the 1-year trajectories of work-related neck disability in a high-risk occupation group such as sonography and to investigate which baseline biopsychosocial factors are associated with the identified trajectories. METHODS: A longitudinal study was conducted among 92 sonographers with neck disability assessed at 3 time points-baseline, 6 months, and 12 months-using the Neck Disability Index. Baseline biopsychosocial measures included individual characteristics (demographics and physical activity levels), work-related physical and psychosocial factors (eg, ergonomic risk, workplace social support, job satisfaction), general psychological features (depression, anxiety, pain catastrophizing, and fear-avoidance beliefs), and quantitative sensory testing of somatosensory function (cold and pressure pain thresholds at neck and tibialis anterior, and temporal summation). RESULTS: Two distinct trajectories of neck disability were identified, including a "low-resolving disability" trajectory showing slow improvement toward no disability (64.8%) and a "moderate-fluctuating disability" trajectory characterized by persistent moderate disability with a small fluctuation across time (35.2%). The trajectory of moderate-fluctuating disability was associated with more severe symptoms, lower vigorous physical activity, higher ergonomic risk, remote cold hyperalgesia, widespread mechanical hyperalgesia, heightened pain facilitation, and several psychosocial factors such as anxiety, depression, lower job satisfaction, and lower workplace social support at baseline. CONCLUSION: Over one-third of sonographers were at risk of developing a moderate-fluctuating disability trajectory. This unfavorable trajectory was associated with low physical activity level, poor ergonomics, psychosocial distress, and central sensitization at baseline. IMPACT: This study has important implications for the management of neck disability in workers. Addressing modifiable factors including low vigorous physical activity, poor ergonomics, anxiety, depression, and lack of workplace social support may improve the trajectory of work-related neck disability.


Subject(s)
Disabled Persons , Neck Pain , Anxiety , Catastrophization/psychology , Humans , Hyperalgesia , Longitudinal Studies , Neck Pain/psychology
11.
Scand J Pain ; 22(3): 506-514, 2022 07 26.
Article in English | MEDLINE | ID: mdl-35119798

ABSTRACT

OBJECTIVES: To assess the agreements and differences in pain drawings (pain area, shape and location) between individuals who have greater trochanteric pain syndrome (GTPS) and their clinician. METHODS: In this study, 23 patients with GTPS (21 female, pain duration range 8-24 months) underwent clinical evaluation by a registered physiotherapist. Digital 2d full body pain drawings were independently performed by the clinician during the subjective examination and by the patient following the physical examination. Levels of agreement [LoA] in the pain area were assessed with Bland-Altman plots. Differences in pain drawings were assessed visually by overlaying images, and by quantifying the differences in shape and location with the bounding box, and Jaccard index, respectively. RESULTS: Pain areas (/total pixels of the charts) did not differ in size (LoA mean difference less than -0.5%; range -2.35-1.56%) or shape (bounding box p>0.17). However, there was minimal overlap in location (Jaccard index range 0.09-0.18/1 for perfect overlap). CONCLUSIONS: Patients and the clinician displayed differences in location of pain areas, but not size or shape, when they independently performed digital pain drawings. The reasons that underlie and the clinical impact of these differences remains unclear.


Subject(s)
Bursitis , Hip Joint , Bursitis/diagnosis , Female , Femur , Humans , Pain , Pain Measurement/methods , Syndrome
12.
Med Sci Sports Exerc ; 54(1): 18-27, 2022 01 01.
Article in English | MEDLINE | ID: mdl-34334715

ABSTRACT

INTRODUCTION: Innovative strategies are needed to enable people with type 2 diabetes (T2D) to self-manage physical activity (PA). Personal Activity Intelligence (PAI) is a new metric that uses the heart rate response to PA to inform the user as to whether they are doing enough PA to reduce the risk of premature mortality. The PAI score reflects PA over the previous 7 d with the goal to maintain a score ≥100. The aim of this study was to investigate the feasibility, acceptability, and efficacy of the PAI e-Health Program in people with T2D. METHODS: Thirty participants with T2D who were not meeting PA guidelines were randomly assigned to 12 wk of either 1) PAI e-Health Program or 2) PA attention control. The PAI e-Health Program consisted of receiving a wrist-worn heart rate monitor and an app with the PAI metric, and attending 4 × 2 h·wk-1 sessions of exercise and counseling. Feasibility and acceptability of the program were evaluated by achievement of a PAI score ≥100 and participant feedback. Efficacy was determined from changes in glycemic control, cardiorespiratory fitness, exercise capacity (time-on-test), body composition, sleep time, and health-related quality of life. RESULTS: Program participants in the PAI e-Health Program had a mean ± SD PAI score of 119.7 ± 60.6 and achieved ≥100 PAI on 56.4% of the days. The majority of participants (80%) intended to continue to use PAI monitoring. Compared with control, the PAI group significantly improved their exercise capacity (mean difference, 95% confidence interval) (63 s, 17.9-108.0 s), sleep time (67.2 min, 7.2-127.1 min), total percent body fat (-1.3%, -2.6% to -0.1%), and gynoid fat percent (-1.5%, -2.6 to -0.5). CONCLUSIONS: The PAI e-Health Program is feasible, acceptable, and efficacious in people with T2D.


Subject(s)
Diabetes Mellitus, Type 2/rehabilitation , Exercise Therapy/methods , Exercise , Health Promotion/methods , Monitoring, Physiologic/methods , Telemedicine/methods , Accelerometry , Aged , Cardiovascular Diseases , Feasibility Studies , Female , Humans , Male , Middle Aged , Pilot Projects , Quality of Life
13.
Pain ; 162(8): 2225-2236, 2021 08 01.
Article in English | MEDLINE | ID: mdl-33534358

ABSTRACT

ABSTRACT: To better understand the mechanisms underpinning work-related neck pain, this cross-sectional and single-blinded study compared somatosensory profiles among sonographers with varied neck disability levels. Based on K-mean cluster analysis of scores on the neck disability index (NDI), participants were classified into no (NDI ≤ 8%, n = 31, reference group), mild (NDI = 10%-20%, n = 43), or moderate/severe (NDI ≥ 22%, n = 18) disability groups. Data were collected on bodily pain distribution and severity and psychological measures including depression, anxiety, pain-catastrophizing, and fear-avoidance beliefs using validated scales. Participants attended 1 session of quantitative sensory testing performed according to a standardized protocol, including local and remote thermal and mechanical pain thresholds, temporal summation of pain (TSP), conditioned pain modulation, and an exercise-induced analgesia paradigm. Compared with participants with no and mild disability, those with moderate/severe disability showed more widespread pain, cold and mechanical hyperalgesia at a remote nonpainful site, and significantly higher TSP. Participants with mild disability demonstrated significantly higher TSP than those with no disability. These group differences were attenuated after adjusting for depression or anxiety, indicating these psychological factors may mediate the somatosensory changes associated with neck disability. Group differences were not found for conditioned pain modulation or exercise-induced analgesia. These findings suggest that heightened pain facilitation, rather than impaired pain inhibition may underpin nociplastic pain in participants with moderate/severe disability, and it may be associated with depression and anxiety. Clinicians should be aware that individuals with work-related neck pain presenting with moderate/severe disability display distinct somatosensory features and tailor management strategies accordingly.


Subject(s)
Neck Pain , Pain Threshold , Catastrophization , Cross-Sectional Studies , Disability Evaluation , Humans , Pain Measurement
14.
J Biomech ; 112: 110067, 2020 11 09.
Article in English | MEDLINE | ID: mdl-33035839

ABSTRACT

Ageing is associated with alterations in the structure and function of the contractile and elastic tissues that enable movement, posture, and balance. Alterations in structure and mechanical properties of the ankle plantarflexors and Achilles tendon are of particular interest due to their important 'catapult-like' function during efficient and healthy human locomotion. In this study, we examined age-related differences in the in vivo mechanical properties of both muscle and tendon in the human ankle plantarflexors in healthy younger (21 ± 3.25 years) and older (69 ± 2.86 years) adults. All participants were physically active, to represent healthy ageing. B-mode ultrasound coupled with force measurements was used to determine in vivo Achilles tendon stiffness and shear-wave elastography was used to measure shear modulus, an index of muscle stiffness, in the medial and lateral gastrocnemii. We found that older adults displayed 43% lower (p = 0.004) Achilles tendon stiffness, 59% lower (p < 0.001) Achilles tendon Young's modulus, and 34% greater (p = 0.002) Achilles tendon cross-sectional area compared to younger participants. We found no difference in the shear modulus of the medial or lateral gastrocnemii between the younger and older individuals. The reduction in Achilles tendon stiffness coupled with similar gastrocnemii muscle shear modulus likely influences the integrated neuromechanical function of the ankle plantarflexor muscle-tendon units during locomotor tasks. Further investigations into the relationship between altered mechanical properties and in vivo muscle-tendon dynamics will provide greater insights into the age-related declines in mobility and locomotor function.


Subject(s)
Achilles Tendon , Achilles Tendon/diagnostic imaging , Adolescent , Adult , Aged , Ankle Joint/diagnostic imaging , Elastic Modulus , Humans , Muscle, Skeletal/diagnostic imaging , Ultrasonography , Young Adult
15.
Phys Ther Sport ; 46: 254-259, 2020 Nov.
Article in English | MEDLINE | ID: mdl-33059234

ABSTRACT

STUDY DESIGN: A cross-sectional study of non-elite volleyball players aged 13-17years. OBJECTIVES: To evaluate the presence and location of pain during the single leg decline squat (SLDS) and compare patellar tendon thickness, structure, neovascularisation and symptom severity between SLDS-derived groups. METHODS: 32 male and 25 female participants attending a 5-day volleyball training camp underwent clinical evaluation by SLDS, describing the location of pain during this test using a pain map. The patellar tendon was examined using ultrasound imaging, performed by an assessor blinded to other assessments. Differences between participants experiencing local patellar tendon pain (PTP), other knee pain (OKP) or no-pain during the SLDS were evaluated. RESULTS: Fifteen (26.3%) participants experienced pain during the SLDS. Local PTP was recorded for 12.3% and OKP for 10.5% of right legs. The PTP group was distinguished from the other groups by larger thickness and cross-sectional area of the mid-patellar tendon (p < 0.001), more frequent neovascularisation (p = 0.005) and greater pain and disability (p < 0.036). No differences between OKP and no-pain groups was observed. CONCLUSION: Adolescent non-elite volleyball players reported symptoms indicative of patellar tendinopathy. In this cohort, the SLDS test combined with a pain map was associated with imaging and questionnaire-based outcomes. LEVEL OF EVIDENCE: Diagnosis, Level 2; Cross-sectional study.


Subject(s)
Arthralgia/diagnosis , Exercise Test/methods , Knee Joint/physiopathology , Patellar Ligament/injuries , Tendinopathy/diagnosis , Volleyball/injuries , Adolescent , Cohort Studies , Cross-Sectional Studies , Female , Humans , Knee Joint/diagnostic imaging , Knee Joint/pathology , Leg , Male , Neovascularization, Pathologic , Patellar Ligament/blood supply , Patellar Ligament/diagnostic imaging , Patellar Ligament/pathology , Tendinopathy/diagnostic imaging , Tendinopathy/physiopathology , Ultrasonography
17.
J Pain ; 21(11-12): 1101-1124, 2020.
Article in English | MEDLINE | ID: mdl-32574788

ABSTRACT

This systematic review and meta-analysis examined the evidence for altered central pain processing in people with nontraumatic neck pain and the relationship among central pain processing, demographics, and pain-related characteristics. Case-control studies reporting measures of altered central pain processing using quantitative sensory testing were reviewed. Standardized mean differences (SMDs) and 95% confidence intervals between people with nontraumatic neck pain and controls were calculated. Meta-analysis was performed using random-effects models when appropriate. Associations between SMDs with demographics and pain-related characteristics were explored on a study level using metaregression. Twenty-six studies were eligible with 25 included for meta-analysis. Meta-analysis demonstrated mechanical hyperalgesia at remote nonpainful sites in the full sample (sample size [n] = 1305, SMD = -0.68) and in the subgroup with moderate/severe disability (n = 165, SMD = -0.86; moderate-quality evidence). Metaregression indicated that remote mechanical hyperalgesia was negatively associated with age (R2 = 25.4%, P = 0.031). Very low- to low-quality evidence of remote cold and heat hyperalgesia and dysfunctional conditioned pain modulation were identified. This review suggests that altered central pain processing is present in people with nontraumatic neck pain and may be associated with disability levels and age. PERSPECTIVE: This review found moderate-quality evidence of mechanical hyperalgesia at remote nonpainful sites in patients with nontraumatic neck pain compared with controls, indicating altered central pain processing. However, more studies are needed to confirm findings from dynamic quantitative sensory testing.


Subject(s)
Central Nervous System Sensitization/physiology , Neck Pain/diagnosis , Pain Measurement/methods , Pain Threshold/physiology , Case-Control Studies , Humans , Neck Pain/physiopathology , Neck Pain/psychology , Observational Studies as Topic/methods , Pain Measurement/psychology , Pain Threshold/psychology
18.
Diabetes Res Clin Pract ; 164: 108168, 2020 Jun.
Article in English | MEDLINE | ID: mdl-32360399

ABSTRACT

AIMS: People with type 2 diabetes (T2D) have a greater prevalence of musculoskeletal and neuropathic pain. This exploratory analysis investigated whether exercise of different intensities leads to changes in self-reported musculoskeletal pain or symptoms of diabetic neuropathy in inactive individuals with type 2 diabetes. METHODS: Thirty-two inactive adults with T2D (59% male, mean age 58.7 ± 9.1yrs, median HbA1c 7.8%) were randomised to usual care (CON), supervised combined aerobic and resistance moderate-intensity continuous training (C-MICT), or supervised combined high-intensity interval training (C-HIIT). At baseline and 8-weeks, musculoskeletal and neuropathic pain were evaluated using a modified Nordic Musculoskeletal Questionnaire and the Neuropathy Total Symptom Score-6 respectively. Quantitative sensory testing was used to determine thermal, mechanical and vibration detection thresholds, as well as pain pressure thresholds. Adverse events were recorded throughout the intervention. RESULTS: Compared to CON, reduction in musculoskeletal pain intensity was significantly greater for C-HIIT (MD -5.4, 95% CI [-10.6 to -0.2], p = 0.04) and non-significantly greater for C-MICT (MD -5.9 [-12.4 to 0.7], p = 0.08). Changes in neuropathy symptoms were not different between C-HIIT and CON (MD 1.0 [-0.9 to 2.8], p = 0.31), or C-MICT and CON (MD 0.2 [-3.1 to 3.6], p = 0.89). No differences in sensory function were observed between groups. Similar rates of adverse events were seen in both exercise interventions (19 C-HIIT; 17 C-MICT), all but one of which were mild. CONCLUSIONS: Preliminary data suggests 8-weeks of high-intensity combined aerobic and resistance exercise may be safely prescribed for inactive individuals with T2D and may reduce musculoskeletal pain but not neuropathic symptoms. TRIAL REGISTRATION: ACTRN12615000475549.


Subject(s)
Diabetes Mellitus, Type 2/therapy , Exercise/physiology , Musculoskeletal Diseases/therapy , Neuralgia/therapy , Adolescent , Adult , Aged , Aged, 80 and over , Female , Humans , Longitudinal Studies , Male , Middle Aged , Young Adult
19.
Curr Diabetes Rev ; 16(3): 211-219, 2020.
Article in English | MEDLINE | ID: mdl-31146662

ABSTRACT

OBJECTIVES: People with type 2 diabetes (T2D) are more likely to develop a range of rheumatological and musculoskeletal symptoms (RMS), and experience both chronic and widespread pain, compared with the general population. However, these symptoms are not commonly acknowledged by researchers, which hampers our understanding of the impact on this population. Since exercise is a key lifestyle management strategy for T2D and participation levels are typically low, understanding the potential impact of RMS on exercise participation is critical. The aim of this review is to summarise the literature regarding the prevalence and pathophysiology of RMS in T2D, the evidence for the benefits and risks associated with exercise on RMS, and the currently available tools for the reporting of RMS in both research studies and community settings. METHODS: A narrative review. RESULTS: There are numerous exercise trials in T2D, but few have sufficiently reported pain-related adverse events and even fewer have investigated the effects of exercise on RMS and chronic pain. DISCUSSION: Recommendations for future research are provided.


Subject(s)
Chronic Pain/therapy , Diabetes Mellitus, Type 2/complications , Exercise Therapy/methods , Musculoskeletal Diseases/therapy , Chronic Pain/etiology , Humans , Musculoskeletal Diseases/etiology , Rheumatic Diseases/etiology , Rheumatic Diseases/therapy
20.
Br J Sports Med ; 54(8): 444-451, 2020 Apr.
Article in English | MEDLINE | ID: mdl-31685525

ABSTRACT

BACKGROUND: The absence of any agreed-upon tendon health-related domains hampers advances in clinical tendinopathy research. This void means that researchers report a very wide range of outcome measures inconsistently. As a result, substantial synthesis/meta-analysis of tendon research findings is almost futile despite researchers publishing busily. We aimed to determine options for, and then define, core health-related domains for tendinopathy. METHODS: We conducted a Delphi study of healthcare professionals (HCP) and patients in a three-stage process. In stage 1, we extracted candidate domains from clinical trial reports and developed an online survey. Survey items took the form: 'The 'candidate domain' is important enough to be included as a core health-related domain of tendinopathy'; response options were: agree, disagree, or unsure. In stage 2, we administered the online survey and reported the findings. Stage 3 consisted of discussions of the findings of the survey at the ICON (International Scientific Tendinopathy Symposium Consensus) meeting. We set 70% participant agreement as the level required for a domain to be considered 'core'; similarly, 70% agreement was required for a domain to be relegated to 'not core' (see Results next). RESULTS: Twenty-eight HCP (92% of whom had >10 years of tendinopathy experience, 71% consulted >10 cases per month) and 32 patients completed the online survey. Fifteen HCP and two patients attended the consensus meeting. Of an original set of 24 candidate domains, the ICON group deemed nine domains to be core. These were: (1) patient rating of condition, (2) participation in life activities (day to day, work, sport), (3) pain on activity/loading, (4) function, (5) psychological factors, (6) physical function capacity, (7) disability, (8) quality of life and (9) pain over a specified time. Two of these (2, 6) were an amalgamation of five candidate domains. We agreed that seven other candidate domains were not core domains: range of motion, pain on clinician applied test, clinical examination, palpation, drop out, sensory modality pain and pain without other specification. We were undecided on the other five candidate domains of physical activity, structure, medication use, adverse effects and economic impact. CONCLUSION: Nine core domains for tendon research should guide reporting of outcomes in clinical trials. Further research should determine the best outcome measures for each specific tendinopathy (ie, core outcome sets).


Subject(s)
Tendinopathy/therapy , Activities of Daily Living , Decision Making, Shared , Delphi Technique , Health Care Surveys , Humans , Pain/etiology , Quality of Life , Tendinopathy/complications , Tendinopathy/psychology
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