-
Spine Deformity May 2023Studies on sagittal alignment parameters have solely focused on patients with preexisting spinal deformity. Limited data in the literature have analyzed pelvic incidence... (Review)
Review
PURPOSE
Studies on sagittal alignment parameters have solely focused on patients with preexisting spinal deformity. Limited data in the literature have analyzed pelvic incidence (PI) values in an asymptomatic patient population. The purpose of this study was to: (1) systematically review the literature to analyze normative PI values in asymptomatic patients; and (2) provide a more definitive geometric measurement guide for determining surgical interventions.
METHODS
A systematic review of retrospective studies was performed by searching PubMed to identify studies that analyzed PI measurements in asymptomatic subjects. The following search phrases were used: (pelvic incidence, pelvic tilt, sacral slope, sagittal alignment, radiograph, asymptomatic, normative values, and adults) using Boolean operators AND, OR and NOT. Patients with pathology involving the osseous pelvic anatomy (including fracture, infection, tumor, previous surgery, and lumbosacral fusion) that would prevent measurement of the selected parameters were not included. Pelvic incidence (PI) values were analyzed.
RESULTS
A total of 29 studies met inclusion criteria, including 3629 asymptomatic subjects who underwent standing lateral radiographs (mean age, 41.1 years; range, 24-69 years) for the purposes of analyzing pelvic incidence values. Overall, the mean PI value was 50.0° (range, 24-69) which is consistent with reported values in the literature.
CONCLUSION
Wide anatomical variability and broad clinical interpretation of PI normative values do little to guide surgical planning for successful outcomes. However, this systematic review has presented PI-stratified normative values in a large sample of asymptomatic subjects which can serve as a grounded geometric reference for spine surgeons when considering surgical intervention approaches.
Topics: Adult; Humans; Retrospective Studies; Sacrum; Posture; Standing Position; Radiography
PubMed: 36735158
DOI: 10.1007/s43390-023-00649-2 -
Archives of Physical Medicine and... Mar 2021To investigate the evidence of measurement properties of isokinetic dynamometry (ID) for assessment of shoulder muscle strength in healthy individuals and patients with...
OBJECTIVE
To investigate the evidence of measurement properties of isokinetic dynamometry (ID) for assessment of shoulder muscle strength in healthy individuals and patients with nonneurologic shoulder pathology.
DATA SOURCES
Cochrane Central Register of Controlled Trials, PubMed, EMBASE, and Physiotherapy Evidence Database were searched up to February 2020 without restrictions. Reference lists and citations were hand-searched.
STUDY SELECTION
Two review authors independently included studies that met the following criteria: (1) evaluated measurement properties of ID when used on the glenohumeral joint and (2) included individuals 18 years and older. Studies including patients with neurologic, neuromuscular, or systemic diseases or critical illness were excluded.
DATA EXTRACTION
The quality assessment and data synthesis were performed according to the COnsensus-based Standards for the selection of health Measurement INstruments methodology.
DATA SYNTHESIS
Twenty-one studies with a total of 597 participants were included. The results were combined separately for isometric, concentric, and eccentric test mode; for the velocities 30°/s-60°/s, 90°/s, 120°/s, and 240°/s; for the seated, supine, and standing position; and for internal rotation (IR), external rotation (ER), and the ER/IR ratio. The reliability of ID was overall sufficient with the majority of intraclass correlation coefficients ≥0.70. The quality of evidence was moderate or low for 20 of 30 strata examined. The measurement error results were rated as insufficient for all strata. The SEM ranged from 4%-28%. The quality of evidence varied depending of strata examined.
CONCLUSIONS
The reliability of ID for measurement of shoulder strength was overall sufficient for all positions, velocities, and modes of strength. The measurement error was not sufficient. Because most studies used the seated position, the velocities 30°/s-60°/s or 120°/s, and the concentric test mode, the quality of evidence was highest for these conditions.
Topics: Humans; Muscle Strength; Muscle Strength Dynamometer; Reproducibility of Results; Shoulder Pain
PubMed: 32619417
DOI: 10.1016/j.apmr.2020.06.005 -
Work (Reading, Mass.) 2021Previous studies have shown high rates (47-72%) of self-reported work-related musculoskeletal disorders (WRMDs) in surgeons of the head and neck. Physical requirements... (Review)
Review
BACKGROUND
Previous studies have shown high rates (47-72%) of self-reported work-related musculoskeletal disorders (WRMDs) in surgeons of the head and neck. Physical requirements in the workplace, individual factors (e.g. poor posture, obesity) and psychosocial factors have been identified as risk factors. Establishing biomechanical risk factors may help prevent further development of WRMDs in this population.
OBJECTIVE
The purpose of this critical review was to source studies that identified the biomechanical risk factors for WRMDs in this surgical sub-specialty.
METHODS
Searches were conducted of Medline, CINAHL, and AMED databases from 1980 until September 2018.
RESULTS
A total of 182 article were identified. Exclusion criteria lead to 163 full-text articles being screened, generating a total of 6 articles for review. The aims of the included studies varied significantly. Surgeons spend the majority of operating time in static, asymmetrical positions. Surgical loupes/headlamps significantly increased cervical spine loading. Articulated surgical arm supports provided optimal ergonomic conditions. Performing surgical operations with the surgeon in standing or sitting had no effect on task performance or demand. Physical fatigue was also measured in both positions.
CONCLUSIONS
A combination of equipment-based and patient/surgeon position-based factors predispose surgeons to biomechanical risk factors. Studies of greater methodological quality are required.
Topics: Ergonomics; Humans; Musculoskeletal Diseases; Occupational Diseases; Risk Factors; Surgeons
PubMed: 33998586
DOI: 10.3233/WOR-213474 -
Bone & Joint Open Aug 2020To analyze outcomes reported in studies of Ponseti correction of idiopathic clubfoot.
AIMS
To analyze outcomes reported in studies of Ponseti correction of idiopathic clubfoot.
METHODS
A systematic review of the literature was performed to identify a list of outcomes and outcome tools reported in the literature. A total of 865 studies were screened following Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines, and 124 trials were included in the analysis. Data extraction was completed by two researchers for each trial. Each outcome tool was assigned to one of the five core areas defined by the Outcome Measures Recommended for use in Randomized Clinical Trials (OMERACT). Bias assessment was not deemed necessary for the purpose of this paper.
RESULTS
In total, 20 isolated outcomes and 16 outcome tools were identified representing five OMERACT domains. Most outcome tools were appropriately designed for children of walking age but have not been embraced in the literature. The most commonly reported isolated outcomes are subjective and qualitative. The quantitative outcomes most commonly used are ankle range of motion (ROM), foot position in standing, and muscle function.
CONCLUSIONS
There is a diverse range of outcomes reported in studies of Ponseti correction of clubfoot. Until outcomes can be reported unequivocally and consistently, research in this area will be limited. Completing the process of establishing and validating COS is the much-needed next step.Cite this article: 2020;1-8:457-464.
PubMed: 33215139
DOI: 10.1302/2633-1462.18.BJO-2020-0109.R1 -
Disability and Rehabilitation Oct 2019To evaluate the effect of ankle positions on pelvic floor muscles in women. Multiple databases were searched from inception-July 2017. Study quality was rated using... (Meta-Analysis)
Meta-Analysis
To evaluate the effect of ankle positions on pelvic floor muscles in women. Multiple databases were searched from inception-July 2017. Study quality was rated using the grading of recommendations, assessment, development, and evaluation system and the "threats to validity tool". Four studies were eligible for inclusion. Meta-analysis revealed significantly greater resting activity of pelvic floor muscles in neutral ankle position (-1.36 (95% CI -2.30, -0.42) = 0.004) and induced 15° dorsiflexion (-1.65 (95% CI -2.49, -0.81) = 0.0001) compared to induced 15° plantar flexion. Significantly greater maximal voluntary contraction of pelvic floor was found in dorsiflexion compared to plantar flexion (-2.28 (95% CI -3.96, -0.60) = 0.008). Meta-analyses revealed no significant differences between the neutral ankle position and 15° dorsiflexion for either resting activity (0.30 (95% CI -0.75, 1.35) = 0.57) or maximal voluntary contraction (0.97 (95% CI -0.77, 2.72) = 0.27). Pelvic floor muscle-training for women with urinary incontinence could be performed in standing with ankles in a neutral position or dorsiflexion to facilitate greater maximal pelvic floor muscle contraction. As urethral support requires resting contraction of pelvic floor muscles, decreased resting activity in plantar flexion identified in the meta-analysis indicates that high-heel wearers with urinary incontinence might potentially experience more leakage during exertion in a standing position. Implications for rehabilitation Pooled analyses revealed that maximal voluntary contraction of pelvic floor muscle is greater in induced ankle dorsiflexion than induced plantar flexion. As pelvic floor muscle strengthening involves achieving a greater maximal voluntary contraction, pelvic floor muscle training for women with stress urinary incontinence could be performed in standing either with ankles in a neutral position or dorsiflexion. Decreased resting activity in plantar flexion identified in the meta-analysis indicates that high-heel wearers with stress urinary incontinence might potentially experience more leakage during exertion in a standing position. Women with stress urinary incontinence should be advised to wear flat shoes instead of high-heels and should be cautioned about body posture and ankle positions assumed during exercise and daily activities.
Topics: Ankle Joint; Exercise Therapy; Female; Humans; Muscle Contraction; Muscle Strength; Pelvic Floor; Standing Position; Urinary Incontinence, Stress
PubMed: 29733699
DOI: 10.1080/09638288.2018.1468934 -
Sports Medicine (Auckland, N.Z.) Feb 2021Perineal pressure associated with bicycle riding is the cause of several genitourinary pathologies, most notably Alcock's syndrome and subsequent perineal numbness. The... (Meta-Analysis)
Meta-Analysis
INTRODUCTION
Perineal pressure associated with bicycle riding is the cause of several genitourinary pathologies, most notably Alcock's syndrome and subsequent perineal numbness. The possible link between cycling-induced perineal numbness and erectile dysfunction makes the development of strategies for perineal protection in bicycle users critical.
OBJECTIVE
To assess the effectiveness of strategies for reducing the impact of cycling on the perineum in healthy males.
METHODS
We have conducted a systematic review and a meta-analysis of studies examining various means of reducing the impact of cycling on the perineum under the PRISMA guidelines.
RESULTS
Out of 2217 screened studies, 22 met our inclusion criteria, and 6 qualified for meta-analysis. The strategies included various designs of saddles, changes in the cycling position, seat shock absorber, shorts with different padding, using the recumbent bike. Using the no-nose saddle and recumbent bike resulted in a significant reduction of perineal pressure and higher penile oxygen pressure compared with a standard saddle. Indirect evidence supports the protective effect of standing on the pedals every few minutes during cycling. More evidence is needed to support-or dismiss-other strategies.
CONCLUSIONS
Current evidence supports the use of no-nose saddles as a mean to reduce the negative impact of cycling on the perineum in healthy males at the cost of worse stability and increase of posterior seat pressure. Standing on the pedals every ten minutes might be an effective and potentially widely applicable strategy. The use of a recumbent bike appears to protect the perineum, but several concerns prevent its widespread use.
Topics: Bicycling; Erectile Dysfunction; Humans; Male; Oxygen; Penis; Perineum
PubMed: 33074460
DOI: 10.1007/s40279-020-01363-z -
Annals of Internal Medicine Jan 2021Although intensive blood pressure (BP)-lowering treatment reduces risk for cardiovascular disease, there are concerns that it might cause orthostatic hypotension (OH). (Meta-Analysis)
Meta-Analysis
BACKGROUND
Although intensive blood pressure (BP)-lowering treatment reduces risk for cardiovascular disease, there are concerns that it might cause orthostatic hypotension (OH).
PURPOSE
To examine the effects of intensive BP-lowering treatment on OH in hypertensive adults.
DATA SOURCES
MEDLINE, EMBASE, and Cochrane CENTRAL from inception through 7 October 2019, without language restrictions.
STUDY SELECTION
Randomized trials of BP pharmacologic treatment (more intensive BP goal or active agent) that involved more than 500 adults with hypertension or elevated BP and that were 6 months or longer in duration. Trial comparisons were groups assigned to either less intensive BP goals or placebo, and the outcome was measured OH, defined as a decrease of 20 mm Hg or more in systolic BP or 10 mm Hg or more in diastolic BP after changing position from seated to standing.
DATA EXTRACTION
2 investigators independently abstracted articles and rated risk of bias.
DATA SYNTHESIS
5 trials examined BP treatment goals, and 4 examined active agents versus placebo. Trials examining BP treatment goals included 18 466 participants with 127 882 follow-up visits. Trials were open-label, with minimal heterogeneity of effects across trials. Intensive BP treatment lowered risk for OH (odds ratio, 0.93 [95% CI, 0.86 to 0.99]). Effects did not differ by prerandomization OH ( for interaction = 0.80). In sensitivity analyses that included 4 additional placebo-controlled trials, overall and subgroup findings were unchanged.
LIMITATIONS
Assessments of OH were done while participants were seated (not supine) and did not include the first minute after standing. Data on falls and syncope were not available.
CONCLUSION
Intensive BP-lowering treatment decreases risk for OH. Orthostatic hypotension, before or in the setting of more intensive BP treatment, should not be viewed as a reason to avoid or de-escalate treatment for hypertension.
PRIMARY FUNDING SOURCE
National Heart, Lung, and Blood Institute, National Institutes of Health. (PROSPERO: CRD42020153753).
Topics: Antihypertensive Agents; Blood Pressure; Blood Pressure Determination; Humans; Hypertension; Hypotension, Orthostatic
PubMed: 32909814
DOI: 10.7326/M20-4298 -
International Journal of Environmental... Aug 2019Ambient air pollution is a long-standing and significant public health issue. The aim of this review is to systematically examine the peer-reviewed evidence on social...
Ambient air pollution is a long-standing and significant public health issue. The aim of this review is to systematically examine the peer-reviewed evidence on social inequalities and ambient air pollution in the World Health Organization European Region. Articles published between 2010 and 2017 were analyzed in the review. In total 31 articles were included in the review. There is good evidence from ecological studies that higher deprivation indices and low economic position are usually linked with higher levels of pollutants such as particulate matter (particulate matter under 2.5 and 10 microns in diameter, PM, PM) and oxides of nitrogen (e.g., NO, and NO). There is also evidence that ethnic minorities experience a mixed exposure in comparison to the majority population being sometimes higher and sometimes lower depending on the ethnic minority under consideration. The studies using data at the individual level in this review are mainly focused on pregnant women or new mothers, in these studies deprivation and ethnicity are more likely to be linked to higher exposures of poor air quality. Therefore, there is evidence in this review that the burden of higher pollutants falls disproportionally on different social groups.
Topics: Adult; Air Pollution; Environmental Exposure; Ethnicity; Europe; Female; Humans; Minority Groups; Pregnancy; Public Health; Socioeconomic Factors
PubMed: 31466272
DOI: 10.3390/ijerph16173127 -
Journal of Biomechanics Nov 2019Knee osteoarthritis (OA) progression is associated with an increase in peak external knee flexion torque (EKFT) during gait. However, the difference in the peak EKFT... (Meta-Analysis)
Meta-Analysis
Knee osteoarthritis (OA) progression is associated with an increase in peak external knee flexion torque (EKFT) during gait. However, the difference in the peak EKFT between individuals with knee OA and age-matched subjects was unclear. Therefore, to understand the kinematics, kinetics, and electromyogram characteristics in individuals with knee OA, we conducted a systematic review and meta-analysis of sagittal plane-dominant sit-to-stand (STS) motion. PubMed, PEDro, CINAHL, and Cochrane CENTRAL were used. Fourteen articles (knee-OA group: n = 323, mean age = 65.0 years, mean weight = 79.2 kg; control group: n = 224, mean age = 64.4 years, mean weight = 70.4 kg) were included, and the pooled standardized mean differences (SMDs) were calculated using a random-effects model. Meta-analysis showed that individuals with knee OA present significantly lower peak EKFT (pooled SMD: -1.62; 95% confidence interval [CI]: -2.36 to -0.88), significantly large trunk flexion angle (pooled SMD: 1.04; 95% CI: 0.69 to 1.39), and no significantly lower peak external knee adduction torque despite the significantly larger lateral-lean angle to the less affected side (pooled SMD: 1.04; 95% CI: 0.69 to 1.39). The quality of evidence for all outcomes was very low. The descriptive synthesis indicates that STS motion in individuals with knee OA might be an unsuitable motion strategy for knee muscle activity, force utilization from multiple joints to the knee joint, and their influence on knee joint cartilage, despite their lower peak EKFT. This information can help to better understand movement strategies and to optimize treatment approaches for individuals with knee OA.
Topics: Biomechanical Phenomena; Humans; Kinetics; Mechanical Phenomena; Osteoarthritis, Knee; Sitting Position; Standing Position
PubMed: 31610881
DOI: 10.1016/j.jbiomech.2019.109331 -
Ageing Research Reviews Jun 2024Exergame-based training is currently considered a more promising training approach than conventional physical and/or cognitive training. (Review)
Review
BACKGROUND
Exergame-based training is currently considered a more promising training approach than conventional physical and/or cognitive training.
OBJECTIVES
This study aimed to provide quantitative evidence on dose-response relationships of specific exercise and training variables (training components) of exergame-based training on cognitive functioning in middle-aged to older adults (MOA).
METHODS
We conducted a systematic review with meta-analysis including randomized controlled trials comparing the effects of exergame-based training to inactive control interventions on cognitive performance in MOA.
RESULTS
The systematic literature search identified 22,928 records of which 31 studies were included. The effectiveness of exergame-based training was significantly moderated by the following training components: body position for global cognitive functioning, the type of motor-cognitive training, training location, and training administration for complex attention, and exercise intensity for executive functions.
CONCLUSION
The effectiveness of exergame-based training was moderated by several training components that have in common that they enhance the ecological validity of the training (e.g., stepping movements in a standing position). Therefore, it seems paramount that future research focuses on developing innovative novel exergame-based training concepts that incorporate these (and other) training components to enhance their ecological validity and transferability to clinical practice. We provide specific evidence-based recommendations for the application of our research findings in research and practical settings and identified and discussed several areas of interest for future research.
PROSPERO REGISTRATION NUMBER
CRD42023418593; prospectively registered, date of registration: 1 May 2023.
PubMed: 38914262
DOI: 10.1016/j.arr.2024.102385