P.33Quantified muscle testing: the right way to assess muscle strength impairments in DM1

The object of this study was to determine the long term results of uncomplicated menisectomies in 16 patients who were at least 8 months post-operative. The average age of the patients was 25 years and all had right dominant legs. Seven of the subjects had undergone right knee surgery, and the remaining eight left knee surgery.Questionnaires were answered to determine the patients’ current symptoms and functional ability. Fifteen patients attended a physical examination to assess quadriceps and hamstring muscle strength. The findings were compared to a control group of subjects who had not undergone knee surgery. This study shows that:(i) Sixty percent of the patients had some symptoms such as stiffness, swelling, pain or discomfort, locking, weakness and instability. Seventy-five percent of the patients had some functional limitations during for example squatting, kneeling, climbing stairs, walking on rough ground etc, and half of these surgical patients had some pain and discomfort, as well as difficulty in squatting and kneeling.(ii) Eight months after surgery, the patients had still not regained full muscle strength despite having undergone normal rehabilitation procedures. Isokinetic muscle testing showed a decrease in quadriceps muscle strength in the right-operated leg, the left-operated leg and the right unoperated leg. There was also an increase in right hamstring muscle strength in the right-operated leg.These findings suggest that even uncomplicated menisectomy is not a trivial procedure and that current practices in muscle rehabilitation following menisectomy are not adequate. There should be routine procedures whereby all patients can receive appropriate and adequate muscle rehabilitation after knee surgery.

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THE ROLE OF PHYSIOTHERAPY AND ASSOCIATED METHODS IN THE ATHLETE RECOVERY

SPORT AND SOCIETY ◽

10.36836/2020/1/4 ◽

2020 ◽

pp. 1-9

Author(s):

Bianca Dobreanu

Keyword(s):

Muscle Strength ◽

Initial Amplitude ◽

Maximum Capacity ◽

Men's Basketball ◽

Muscle Testing ◽

Biological Potential ◽

Muscle Balance ◽

The Right ◽

Functional Diagnostic

In the process of sports training, the effort-recovery relationship is a considerable theme to approach. Achieving performance is only possible if, in parallel with the requirements regarding the volume and intensity of the effort, action is taken through methods and measures of recovery, of restoring the biological potential of the athlete. Basketball is a very widespread and appreciated team sport.We assume that the recovery of the athlete can be achieved with the help of physical therapy and its associated methods by combating the generalized fatigue after training at the right time and by the most effective techniques for a quick reintegration of the athlete in the competitive circuit.The research took place on a group of 5 players of the county men's basketball team, in the period of January-March of 2020, în Iași, Romania. For each subject, a record sheet of functional diagnostic data (joint balance, muscle balance, evaluation of painful points but also personalized tests) was completed, both initially and finally.We used goniometry as a method of measuring the amplitudes of movement in the joint, muscle testing to determine muscle strength, comparative measurements of muscle perimeters (knees, legs, thighs) and personalized tests adapted to each athlete,depending on the information received from them. All athletes recorded a significant decrease of the initial pain, a very good increase of mobility in joint amplitude compared to the initial amplitude of the painfull segment and a improvement of muscle strength at maximum capacity.

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Força dos Músculos Rotadores do Ombro em Indivíduos Saudáveis/ Rotator Cuff Muscle Strength in Healthy Individuals

REVISTA CIÊNCIAS EM SAÚDE ◽

10.21876/rcsfmit.v1i1.19 ◽

1970 ◽

Vol 1 (1) ◽

pp. 78-82

Author(s):

Paulo José Oliveira Cortez ◽

José Elias Tomazini ◽

Mauro Gonçalves

Keyword(s):

Rotator Cuff ◽

Muscle Strength ◽

Internal Rotation ◽

Upper Limb ◽

Statistical Difference ◽

External Rotation ◽

Healthy Individuals ◽

Average Strength ◽

Strength Tests ◽

The Right

Introdução: A diminuição da capacidade de exercer esforços por parte dos músculos rotadores pode criar uma variedade de problemas. O conhecimento preciso do nível de força muscular de um indivíduo é importante, tanto para a avaliação da capacidade funcional ocupacional, como para uma apropriada prescrição de exercícios atléticos e de reabilitação. Percebe-se escassez de informação sobre as articulações do ombro, bem como os fatores envolvidos na força muscular dessa região. O objetivo deste estudo foi comparar a força gerada pelos músculos do manguito rotador entre o membro superior direito e o membro superior esquerdo em indivíduos saudáveis. Métodos: Participaram do estudo 22 sujeitos do sexo masculino, com idade de 18 e 19 anos, militares, saudáveis e sem história clínica de patologia ortopédica ou qualquer tipo de lesão no sistema musculoesquelético. Foram aplicados dois testes de força: Rotação Interna e Rotação Externa. Resultado : A força média de rotação interna no membro superior direito (MSD) foi maior que a força média de rotação interna no membro superior esquerdo (MSE) (p=0,723) e a força de rotação externa no MSD foi menor que a força média de rotação externa no MSE (p=0,788). Não houve diferença estatística na comparação dos valores de força de todos os testes de força isométrica. Conclusão: Para amostra estudada e metodologia utilizada na avaliação da força muscular, não houve diferença estatística na comparação da força gerada pelos músculos do manguito rotador do membro superior direito e do membro superior esquerdo.Rotator Cuff Muscle Strength in Healthy Individuals Introduction: Decreased ability to exert efforts by the rotator muscles can create a variety of problems. The precise knowledge of the level of muscular strength of an individual is important for both the functional capacity evaluation for occupational as an appropriate exercise prescription and rehabilitation of athletic. It is perceived scarcity of information on the shoulder joints as well as factors involved in muscle strength in this region. Objective: Develop a device for measuring the strength generated by the muscles of the upper limbs and the verification of efficiency and adaptability of this device through a comparative study of muscle strength in healthy subjects. Methods: The study included 22 male subjects, aged 18 and 19 years, military personnel, body mass between 57.7 and 93 kg (71.8 ± 9.45 kg) and height between 1.67 and 1.90 m (1.75 ± 0.06 m), healthy and without a history of orthopaedic disease or any kind of damage to the musculoskeletal system. Three strength tests were applied: Internal Rotation and External Rotation. For each type of effort three maximum voluntary contractions were required for 10 seconds, with an interval of 30 seconds between each contraction. Results: Internal rotation in the right upper limb (RUL) was higher than the average strength of internal rotation in the left upper limb (LUL) (p = 0, 723) and the external rotation strength in RUL was lower than the average strength of external rotation in the LUL (p=0,788). No statistical difference in comparing the strength values of all isometric strength tests. Conclusion: For sample and methodology used to assess muscle strength, there was no statistical difference in comparing the force generated by the muscles of the rotator cuff of the right and left upper limb.

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Manual Muscle Testing: A Method of Measuring Extremity Muscle Strength Applied to Critically Ill Patients

Journal of Visualized Experiments ◽

10.3791/2632 ◽

2011 ◽

Cited By ~ 7

Author(s):

Nancy Ciesla ◽

Victor Dinglas ◽

Eddy Fan ◽

Michelle Kho ◽

Jill Kuramoto ◽

...

Keyword(s):

Muscle Strength ◽

Critically Ill ◽

Critically Ill Patients ◽

Manual Muscle Testing ◽

Muscle Testing

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

JOURNAL FOR QUALITY IN PUBLIC HEALTH ◽

10.30994/jqph.v5i1.246 ◽

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.

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

Rheumatology ◽

10.1093/rheumatology/keaa419 ◽

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 < 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.

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

Neurology ◽

10.1212/wnl.0000000000008441 ◽

2019 ◽

Vol 93 (19) ◽

pp. e1756-e1767 ◽

Cited By ~ 12

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.

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Hamstring Flexibility Is Not Correlated with Isokinetic Knee Muscle Strength in Female Modern Dancers

Medical Problems of Performing Artists ◽

10.21091/mppa.2018.2016 ◽

2018 ◽

Vol 33 (2) ◽

pp. 95-101 ◽

Cited By ~ 1

Author(s):

Ani Agopyan

Keyword(s):

Muscle Strength ◽

Knee Extensor ◽

Peak Torque ◽

Flexor Muscle ◽

Work Production ◽

University Level ◽

Modern Dancers ◽

Hamstring Flexibility ◽

Knee Muscle ◽

The Right

OBJECTIVE: To evaluate bilateral isokinetic knee extensor and flexor muscle strength relative to hamstring flexibility in female modern dancers. METHODS: 20 trained university-level female modern dance students (mean age 23.8±3.8 yrs) volunteered for the study. Concentric isokinetic peak torque (PT, in Nm), peak torque % of body weight (PT%BW, in Nm/kg), and total work (TW, in J) of the knee extensor and flexor muscles for each leg were measured with a dynamometer at a velocity of 60, 180, and 300°/s. Hamstring flexibility of both limbs was assessed by a goniometer with the subjects in a supine position using the active straight leg raise (SLR) test. Participants were divided into flexible (n=10) and highly flexible (n=10) groups based on their hamstring flexibility. RESULTS: The flexible and highly flexible groups had significant differences (p≤0.05) for the right (flexible, 119.7±4.3°; highly flexible, 137.7±2.6°) and left active SLR tests (flexible, 120.6±5.3°; highly flexible, 138.3±4.5°). No significant differences were found between the flexible and highly flexible dancers for concentric knee extensor and flexor muscle strength in all selected parameters (p≤0.05). There were also no significant correlations between flexibility and bilateral PT, PT%BW, and TW scores (60, 180, and 300°/s) of dancers at the concentric contraction (p≤0.05). CONCLUSION: These findings indicate that hamstring flexibility (for both the flexible and highly flexible groups) is not correlated with knee strength and has no impact on torque and work production during maximal concentric isokinetic knee muscle action in university-level female modern dancers.

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

Sensors ◽

10.3390/s20174999 ◽

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.

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