scholarly journals Manual Testing of Respiratory Muscles in Adults with Asthma: A Intra and Interrater Reliability and Validity Study

2022 ◽  
Author(s):  
Yannely Serrano-Villar ◽  
Eliana-Isabel Rodríguez-Grande ◽  
María Solange Patiño Segura
Keyword(s):  
Muscle Strength ◽  
Convergent Validity ◽  
Interrater Reliability ◽  
Low Cost ◽  
Reliability And Validity ◽  
Respiratory Muscles ◽  
Weighted Kappa ◽  
Manual Muscle Testing ◽  
Cross Sectional ◽  
Muscle Testing

Abstract Background: Manual Muscle Testing (MMT) is a useful tool to evaluate ventilatory mechanics in adults with asthma. However, in the reviewed literature, there are few studies that report psychometric features of this test. Therefore, the present study aimed to evaluate MMT reliability and validity in respiratory muscles in adults with asthma.Methods: It was a cross-sectional study. Muscle strength (MMT and static respiratory pressures), sociodemographic and anthropometric variables related to the disease were evaluated. Measurements were carried out by two independent evaluators The reliability of MMT was analyzed with the weighted kappa and the convergent validity was evaluated by comparing the MTT and the respiratory pressure measurements using Pearson's correlation coefficient. The level of significance was p <0.05. Results: Twenty-six adults with stable asthma participated in the study. The intrarater reliability for MMT was between moderate and substantial (kappa=0.45-0.88) for all evaluated muscles while the interrater reliability was slight and fair for intercostal muscles (kappa=0.07-0.24), and fair and substantial (kappa=0.36-0.75) for other muscles. The convergent validity of MMT and respiratory pressures was low (r=0.20-0.48).Conclusions: MMT is a reliable measurement that can be used to evaluate respiratory muscle strength in adults with asthma. This study support MMT application for respiratory muscles at clinical settings when more objective measures such as MIP and MEP are not available. Considering that the MMT is a useful, practical, low-cost tool commonly used by physiotherapists, future studies could evaluate the convergent validity compared with dynamometry or electromyography of the respiratory muscles.

scholarly journals Assessing the Validity and Reliability of A Low-Cost Microcontroller-Based Load Cell Amplifier for Measuring Lower Limb and Upper Limb Muscular Force

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4999
Author(s):  
Julie Gaudet ◽  
Grant Handrigan
Keyword(s):  
Muscle Strength ◽  
Upper Limb ◽  
Low Cost ◽  
Load Cell ◽  
Manual Muscle Testing ◽  
Muscular Force ◽  
Validity And Reliability ◽  
Important Indicator ◽  
Muscle Testing ◽  
Isometric Muscle

Lower and upper limb maximum muscular force development is an important indicator of physical capacity. Manual muscle testing, load cell coupled with a signal conditioner, and handheld dynamometry are three widely used techniques for measuring isometric muscle strength. Recently, there is a proliferation of low-cost tools that have potential to be used to measure muscle strength. This study examined both the criterion validity, inter-day reliability and intra-day reliability of a microcontroller-based load cell amplifier for quantifying muscle strength. To do so, a low-cost microcontroller-based load cell amplifier for measuring lower and upper limb maximal voluntary isometric muscular force was compared to a commercial grade signal conditioner and to a handheld dynamometer. The results showed that the microcontroller-based load cell amplifier correlated nearly perfectly (Pearson's R-values between 0.947 to 0.992) with the commercial signal conditioner and the handheld dynamometer, and showed good to excellent association when calculating ICC scores, with values of 0.9582 [95% C.I.: 0.9297–0.9752] for inter-day reliability and of 0.9269 [95% C.I.: 0.8909–0.9533] for session one, intra-day reliability. Such results may have implications for how the evaluation of muscle strength measurement is conducted in the future, particularly for offering a commercial-like grade quality, low cost, portable and flexible option.

scholarly journals Manual muscle testing and hand-held dynamometry in people with inflammatory myopathy: An intra- and interrater reliability and validity study

PLoS ONE ◽  
2018 ◽  
Vol 13 (3) ◽  
pp. e0194531 ◽  
Author(s):  
Pierrette Baschung Pfister ◽  
Eling D. de Bruin ◽  
Iris Sterkele ◽  
Britta Maurer ◽  
Rob A. de Bie ◽  
...  
Keyword(s):  
Interrater Reliability ◽  
Inflammatory Myopathy ◽  
Reliability And Validity ◽  
Manual Muscle Testing ◽  
Validity Study ◽  
Muscle Testing

scholarly journals Performance of the lower limb musculoskeletal system in patients with different degree of diabetic ulcer risk

2020 ◽  
Author(s):  
Snježana Novaković Bursać ◽  
Goran Talić ◽  
Nataša Tomić ◽  
Slavica Jandrić
Keyword(s):  
Muscle Strength ◽  
Range Of Motion ◽  
Statistical Significance ◽  
Metatarsophalangeal Joint ◽  
Manual Muscle Testing ◽  
Diabetic Patients ◽  
Cross Sectional ◽  
First Metatarsophalangeal Joint ◽  
Diabetic Ulcer ◽  
Muscle Testing

Abstract BackgroundThe objective of the study was to determine the correlation between the biomechanical parameters: ankle and foot muscle strength, range of motion (ROM) at ankle joint (AJ), subtalar joint (SJ) and first metatarsophalangeal joint (I MTP) in patients with different diabetic ulcer risk assessed by IWGDF 2019 Guidance risk stratification system.MethodA cross-sectional study included 100 diabetic patients. The patients were classified into 4 risk categories of development of diabetic foot ulcer (DFU) applying IWGDF Guidelines 2019 stratification risk system. The function of ten foot and ankle muscles was evaluated by manual muscle testing and application of the Michigan Diabetic Neuropathy Score (MDNS) system. The range of motion ROM at the ankle, subtalar and first metatarsophalangeal joint was measured with a goniometer. The risk assessment was done applying IWGDF Guidelines 2019 stratification risk system. To test the statistical significance the ANOVA test was applied.ResultsAverage muscle strength in specified categories was category 0:9.2; category 1:13.9; category 2:13.3; category 3:15.2. Average ROM at AJ in specified categories was: category 0:49.3°; category 1:48.8°; category 2:45.5°; category 3:44.6°. Average ROM at SJ in specified categories was: category 0:37.8°; category 1:31.3°; category 2:35°; category 3:28.7°. Average ROM at I MTP in specified categories was: category 0:78.6°; category 1:74.4°; category 2:65.5°; category 3:57.9°. ConclusionThe risk for DFU significantly correlates with foot muscle strength and ROM at SJ, and I MTP, but does not with ROM at AJ.

scholarly journals Effect of Isometric and Isotonic Exercise Program on Increased Strength of Quardriceps Muscles in Osteoarthritis Patients in Singgasana Rama Physiotherapy Clinic Blitar

2021 ◽  
Vol 5 (1) ◽  
pp. 42-48
Author(s):  
Irwan Syahputra ◽  
Nurwijayanti Nurwijayanti
Keyword(s):  
Muscle Strength ◽  
Exercise Program ◽  
Quadriceps Strength ◽  
Manual Muscle Testing ◽  
Moderate Intensity ◽  
Rank Test ◽  
Control Group ◽  
Isometric Training ◽  
Muscle Testing ◽  
Isotonic Exercise

Background: Osteoarthritis is a disease of the joints that can cause disability and is progressive in the joints which cause changes in the water content, proteoglycin content, and collagen in the joints. One of the ways to improve functional ability in osteoarthritis cases is to use isotonic and isometric training exercise. Pain is a clinical symptom of knee osteoarthritis, limiting movement due to pain over time will cause rehabilitation problems such as impaired flexibility and stability, reduction of muscle mass (atrophy). Mild and moderate intensity quadriceps strength training is effective at achieving optimal muscle strength and function without causing significant muscle damage. Destination: The purpose of this study was to analyze the effect of isotonic and isometric exercises on muscle strength. Research methods: This study uses a pre-experimental research type using "One Group Pre - test and Post - Test". This research has carried out the first observation (pretest) so that researchers can test the changes that occur after the treatment, and the control group. Result: with the Wilcoxon signed rank test test the isometric and isotonic groups had p = 0.000 while the control group had a significance value of p = 1,000; and the 3 groups test has different values, namely: isotonic exercise has a value of 27.67; isometric; 28.60; and control 12.73. The conclusion that can be concluded that the value of isometric training has the highest value, namely 28.60 which means it is the most effective exercise to increase the value of Manual Muscle Testing. Conclusion: There is an effect of giving isometric and isotonic exercises in strengthening the quadriceps muscles.

scholarly journals Functional capacity, pulmonary and respiratory muscle strength in individuals undergoing hemodialysis

2016 ◽  
Vol 29 (2) ◽  
pp. 343-350 ◽  
Author(s):  
Simone Regina Posser ◽  
Sheila Cristina Cecagno-Zanini ◽  
Fabiana Piovesan ◽  
Camila Pereira Leguisamo
Keyword(s):  
Muscle Strength ◽  
Functional Capacity ◽  
Respiratory Muscle ◽  
Respiratory Muscles ◽  
Cross Sectional Study ◽  
Respiratory Muscle Strength ◽  
Cross Sectional ◽  
Mean Values ◽  
Pressure Meter ◽  
And Gender

Abstract Introduction: Individuals with chronic kidney disease (CKD) undergoing hemodialysis (HD) present low cardiorespiratory fitness and functional capacity. Metabolic changes, due to the disease, can result in a variety of pathophysiological conditions that favor the development of respiratory muscle weakness. However, very little is known about the performance of the respiratory muscles and the influence of HD on them. Aim: To evaluate and correlate pulmonary function, functional capacity and respiratory muscle strength in patients with CKD undergoing HD. Methods: Cross-sectional study comprising 23 patients with CKD, that met the following inclusion criteria: patients of both genders, who perform HD three times a week for a minimum period of three months. Respiratory muscle strength was evaluated using a respiratory pressure meter, lung function through spirometry and functional capacity through the 6-minute walk test (6MWT) before the HD session. Results: All patients were male and mean age was 50.2 ± 15.8 years. The median duration of HD was 3 (1.5 to 6.0) years. The mean values obtained in comparison to those predicted were MIP% 36.0 ± 13.6, MEP% 49.5 ± 15.8, FVC% 93.8 ± 21.1, FEV1% 93.7 ± 21.1, FVC/VEF1% 104.1 ± 10.3, and 6MWT% 66.33 ± 20.53. A statistically significant positive correlation was observed between the 6MWT and MIP (r = .63, p =.001) and MEP (r = .67, p < .001), between the MIP and MEP (r =.79, p < .001) and between the FEV1 and FVC (r = .91, p < .001). Conclusion: Patients with CKD undergoing HD present changes in respiratory muscle strength, with the predicted values decreasing for age and gender, as well as the distance covered in the 6MWT, although, with normal spirometric values. Functional capacity was dependent on respiratory muscle strength, as well as the values of MIP and MEP, and the values of FVC and FEV1.

Comparison between qualitative and quantitative measurement of strength deficit in shoulder flexors of young females: a cross- sectional study

2021 ◽  
Vol 71 (11) ◽  
pp. 2559-2562
Author(s):  
Saadia Perwaiz ◽  
Muhammad Waqar Afzal ◽  
Ghulam Fatima
Keyword(s):  
Positive Predictive Value ◽  
Negative Predictive Value ◽  
Predictive Value ◽  
Sampling Technique ◽  
Cross Sectional Study ◽  
Manual Muscle Testing ◽  
Primary Analysis ◽  
Cross Sectional ◽  
Young Females ◽  
Muscle Testing

Objective: To compare accuracy of manual muscle testing in detection of strength differences across grade 4 and 5 at different percentage deficits of dynamometric mean in shoulder flexors of young females.  Methods: Cross sectional research design, conducting primary analysis of strength of shoulder flexors measured through manual muscle testing and hand-held dynamometer. Three hundred young healthy females without any ailment of upper extremity or generalized health problem were selected from University of South Asia and Association of Fatima Jinnah Old Graduates, Lahore. Non-probability convenient sampling technique was used. The age group selected was 18-39 years. The strength of shoulder flexors measured through manual muscle testing and hand-held dynamometer was main outcome measure. Results: The overall diagnostic accuracy of manual muscle testing showed better results at 10% dynamometric measures. It was 63.33%(95% CI: 57.74%, 68.59%) in non-dominant shoulder flexors and 61.67% (95% CI: 56.05%, 66.99%) in dominant shoulder flexors. The positive predictive value (PPV) and specificity of manual muscle testing was better at 10% strength deficit in comparison with dynamometric measures, whereas negative predictive value (NPV) and sensitivity was better at 20% strength deficit. Contrasting association was found between positive predictive value (PPV) and sensitivity, negative predictive value and specificity.  Conclusion: The subjective area of grade 4 and 5 showed better, although not ideal, diagnostic worth at 10% deficit of dynamometric measures in shoulder flexors. Further exploration through study of contrasting trends between PPV and sensitivity by subgroup analysis is required. Continuous...

Hand-held dynamometry for assessment of muscle strength in patients with inflammatory myopathies

Rheumatology ◽  
2020 ◽  
Author(s):  
Didem Saygin ◽  
Chester V Oddis ◽  
Siamak Moghadam-Kia ◽  
Bonny Rockette-Wagner ◽  
Nicole Neiman ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Disease Activity ◽  
Neuromuscular Disorders ◽  
Strong Association ◽  
External Validation ◽  
Manual Muscle Testing ◽  
Inflammatory Myopathies ◽  
University Of Pittsburgh ◽  
Muscle Testing ◽  
The University

Abstract Objectives Muscle weakness in idiopathic inflammatory myopathies (IIMs) is conventionally assessed using manual muscle testing (MMT). However, more objective tools must be developed to accurately and reliably quantify muscle strength in myositis patients. Hand-held dynamometry (HHD) is a quantitative, portable device with reported reliability in neuromuscular disorders. Our aim was to assess the reliability, validity and responsiveness of HHD in myositis. Methods Myositis patients [DM, necrotizing myopathy (NM), PM and anti-synthetase syndrome] evaluated at the University of Pittsburgh myositis centre were prospectively enrolled. Each patient was assessed at 0, 3 and 6 months for validated outcome measures of myositis disease activity and physical function. At each visit, muscle strength was assessed using both MMT and HHD (Micro FET2, Hoggan Health Industries, Draper, UT, USA). The reliability, validity and responsiveness of the HHD was assessed using standard statistical methods. Results Fifty IIM patients (60% female; mean age 51.6 years; 6 PM, 9 NM, 24 DM and 11 anti-synthetase syndrome) were enrolled. HHD showed strong test–retest intrarater reliability (r = 0.96) and interrater reliability (r = 0.98). HHD correlated significantly with the MMT score (r = 0.48, P = 0.0006) and myositis disease activity and functional measures. Longitudinal analysis showed a significant and strong association between the HHD and MMT as well as 2016 ACR/EULAR myositis response criteria (r = 0.8, P &lt; 0.0001) demonstrating responsiveness. The mean effect size and standardized response mean of HHD was large: 0.95 and 1.03, respectively. MMT had a high ceiling effect compared with HHD. Conclusion HHD demonstrated strong reliability, construct validity and responsiveness in myositis patients. External validation studies are required to confirm these findings.

scholarly journals Large variation in effects during 10 years of enzyme therapy in adults with Pompe disease

Neurology ◽  
2019 ◽  
Vol 93 (19) ◽  
pp. e1756-e1767 ◽  
Author(s):  
Laurike Harlaar ◽  
Jean-Yves Hogrel ◽  
Barbara Perniconi ◽  
Michelle E. Kruijshaar ◽  
Dimitris Rizopoulos ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Pulmonary Function ◽  
Pompe Disease ◽  
Manual Muscle Testing ◽  
Controlled Clinical Trial ◽  
Walking Ability ◽  
Enzyme Replacement ◽  
Link Type ◽  
Muscle Testing

ObjectiveTo determine the effects of 10 years of enzyme replacement therapy (ERT) in adult patients with Pompe disease, focusing on individual variability in treatment response.MethodsIn this prospective, multicenter cohort study, we studied 30 patients from the Netherlands and France who had started ERT during the only randomized placebo-controlled clinical trial with ERT in late-onset Pompe disease (NCT00158600) or its extension (NCT00455195) in 2005 to 2008. Main outcomes were walking ability (6-minute walk test [6MWT]), muscle strength (manual muscle testing using Medical Research Council [MRC] grading), and pulmonary function (forced vital capacity [FVC] in the upright and supine positions), assessed at 3- to 6-month intervals before and after the start of ERT. Data were analyzed with linear mixed-effects models for repeated measurements.ResultsMedian follow-up duration on ERT was 9.8 years (interquartile range [IQR] 8.3–10.2 years). At the group level, baseline 6MWT was 49% of predicted (IQR 41%–60%) and had deteriorated by 22.2 percentage points (pp) at the 10-year treatment point (p < 0.001). Baseline FVC upright was 54% of predicted (IQR 47%–68%) and decreased by 11 pp over 10 years (p < 0.001). Effects of ERT on MRC sum score and FVC supine were similar. At the individual level, 93% of patients had initial benefit of ERT. Depending on the outcome measured, 35% to 63% of patients had a secondary decline after ≈3 to 5 years. Still, at 10 years of ERT, 52% had equal or better 6MWT and/or FVC upright compared to baseline.ConclusionsThe majority of patients with Pompe disease benefit from long-term ERT, but many patients experience some secondary decline after ≈3 to 5 years. Individual variation, however, is considerable.Classification of evidenceThis study provides Class IV evidence that for the majority of adults with Pompe disease, long-term ERT positively affects, or slows deterioration in, muscle strength, walking ability, and/or pulmonary function.

scholarly journals Cyberbullying among Adolescents: Psychometric Properties of the CYB-AGS Cyber-Aggressor Scale

2020 ◽  
Vol 17 (9) ◽  
pp. 3090 ◽  
Author(s):  
Sofia Buelga ◽  
Javier Postigo ◽  
Belén Martínez-Ferrer ◽  
María-Jesús Cava ◽  
Jessica Ortega-Barón
Keyword(s):  
Factor Analysis ◽  
Psychometric Properties ◽  
Convergent Validity ◽  
Reliability And Validity ◽  
Anger Expression ◽  
Cross Sectional Study ◽  
Cross Sectional ◽  
Cyber Aggression ◽  
Institutional Authority ◽  
Positive Correlations

The present study aims to analyze the psychometric properties of the revised version of the Adolescent Cyber-Aggressor scale (CYB-AGS). This scale is composed of 18 items that measure direct and indirect cyberbullying. A cross-sectional study was conducted using two independent samples of adolescents. The first sample included 1318 adolescents (52.6% girls) from 12 to 16 years old (M = 13.89, SD = 1.32). The second sample included 1188 adolescents (48.5% boys) from 12 to 16 years old (M = 14.19, SD = 1.80). First, to study the psychometric properties of the CYB-AGS, exploratory factor analysis was performed on Sample 1. Results indicated a two-factor structure: direct cyber-aggression and indirect cyber-aggression. Second, to verify the structure of the CYB-AGS, we selected Sample 2 to conduct confirmatory factor analysis and test the scale’s convergent validity with theoretically-related measures. Results confirmed the reliability and validity of the two-dimensional model. Moreover, measurement invariance was established. Finally, regarding convergent validity, positive correlations were obtained between cyberbullying and aggressive behaviors in school, anger expression, negative attitudes towards school, and transgression of norms. Furthermore, negative correlations were found between cyberbullying and attitudes towards institutional authority.

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