scholarly journals Compression of Hamstring and Quadriceps Muscles Strength in Patients with Osteoarthritis of Knee and Normal individual

2021 ◽  
pp. 1-7
Author(s):  
M. Shukla ◽  
L. Parmar
Keyword(s):  
Muscle Strength ◽  
Observational Study ◽  
Research Design ◽  
Muscle Weakness ◽  
Normal Individual ◽  
T Test ◽  
Hamstring Muscle ◽  
Knee Oa ◽  
Osteoarthritis Of Knee ◽  
Normal Individuals

Objectives: 1. To assess the strength of hamstring and quadriceps in patients with knee OA with 1 RM. To compare the strength of hamstring and quadriceps with normal individuals. Research Design: Observational study. Introduction: Quadriceps and hamstring muscle weakness is commonly found in knee OA which may alter normal Quadriceps/Hamstrings ratio i.e. (2:1). So the purpose of the study was to check the strength of the quadriceps and hamstring muscle in OA knee patients and compare it with normal individual. Method: 20 diagnosed knee OA patients and 21 normal individuals were recruited. Quadriceps and hamstring muscle strength was measured in both case and normal group by using 1 RM method. Q/H ratio was obtained from the muscle strength and both were compared between two groups by using T test. Materials: Quadriceps table, Metal weight plate, Plinth, Sand bag. Results & Discussion: Quadriceps and hamstring strength were reduced significantly (p=<0.001) in patients with knee OA compare to normal individual. There was negative co relation between pain and muscle strength seen. No alteration in Q/H ratio (Rt knee p=0.130; Lt knee p=0.722) between the case & control found because both the muscle strength reduced similarly. Conclusion: Quadriceps and hamstring muscle strength is significantly reduced in OA knee. Patients compare to normal individuals but no alteration in Q/H ratio seen in both groups.

Varus–valgus motion and functional ability in patients with knee osteoarthritis

2007 ◽  
Vol 67 (4) ◽  
pp. 471-477 ◽  
Author(s):  
M van der Esch ◽  
M Steultjens ◽  
J Harlaar ◽  
N Wolterbeek ◽  
D Knol ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Range Of Motion ◽  
Muscle Weakness ◽  
Functional Ability ◽  
Three Dimensional ◽  
Walking Test ◽  
Knee Oa ◽  
Womac Questionnaire ◽  
The Impact ◽  
The Relationship

Objective:To assess the relationship between knee varus–valgus motion and functional ability, and the impact of knee varus–valgus motion on the relationship between muscle strength and functional ability in patients with osteoarthritis (OA) of the knee.Methods:Sixty-three patients with knee OA were tested. Varus–valgus motion was assessed by optoelectronic recording and three-dimensional motion analysis. Functional ability was assessed by observation, using a 100 m walking test, a Get Up and Go test, and WOMAC questionnaire. Muscle strength was measured by a computer-driven isokinetic dynamometer. Regression analyses were performed to assess the relationships between varus–valgus motion and functional ability, and to assess the impact of varus–valgus motion on the relationship between muscle strength and functional ability.Results:In patients with high varus–valgus range of motion, muscle weakness was associated with a stronger reduction in functional ability (ie, longer walking time and Get Up and Go time) than in patients with low varus–valgus range of motion. A pronounced varus position and a difference between the left and right knees in varus–valgus position were related with reduced functional ability.Conclusions:In patients with knee OA with high varus–valgus range of motion, muscle weakness has a stronger impact on functional ability than in patients with low varus–valgus range of motion. Patients with knee OA with more pronounced varus knees during walking show a stronger reduction in functional ability than patients with less pronounced varus knees or with valgus knees.

The Association Between Serum 25-hydroxy Vitamin D Level and Upper Leg Strength in Patients with Knee Osteoarthritis: Results of the Amsterdam Osteoarthritis Cohort

2016 ◽  
Vol 43 (7) ◽  
pp. 1400-1405 ◽  
Author(s):  
Esmee Koeckhoven ◽  
Marike van der Leeden ◽  
Leo D. Roorda ◽  
Natasja M. van Schoor ◽  
Paul Lips ◽  
...  
Keyword(s):  
Vitamin D ◽  
Muscle Strength ◽  
Knee Osteoarthritis ◽  
Muscle Weakness ◽  
Cross Sectional Study ◽  
Blood Collection ◽  
Cross Sectional ◽  
Knee Oa ◽  
Leg Strength ◽  
25 Hydroxy Vitamin D

Objective.Vitamin D deficiency, which is common among elderly people, has been linked to muscle weakness. In patients with knee osteoarthritis (OA), the association between muscle strength and serum 25-hydroxy Vitamin D [25(OH)D] level has not been studied comprehensively. The aim of our study was to examine the association between serum 25(OH)D level and muscle strength in patients with knee OA.Methods.Data of the Amsterdam Osteoarthritis cohort from 319 participants with knee OA were used in a cross-sectional study. Serum 25(OH)D level (nmol/l) was measured by a competitive electrochemiluminescence method. Muscle strength (nm/kg) of the upper leg was measured isokinetically. Univariable and multivariable linear regression analyses were used to calculate the association between serum 25(OH)D level and muscle strength.Results.Serum 25(OH)D level was significantly associated with muscle strength (B = 0.036, 95% CI 0.017–0.054, p < 0.001), adjusted for season of blood collection. After adding body mass index (BMI) to the model, this association was no longer significant (B = 0.011, 95% CI −0.007 to 0.029, p = 0.214). Alcohol consumption, number of comorbidities, and sex were subsequently added and changed the model slightly. Without BMI, this model showed a significant association between serum 25(OH)D level and muscle strength (B = 0.029, 95% CI 0.014–0.043, p < 0.001).Conclusion.The observed association between a low serum 25(OH)D level and muscle weakness in patients with knee OA is attenuated by BMI. Further studies are needed to explain the associations among Vitamin D level, muscle strength, and adiposity in patients with knee OA.

scholarly journals Eccentric Hamstring Muscle Strength during Home Confinement Due to the COVID-19 Pandemic, and Football Competition Resumption in Professional Football Referees: A Prospective Observational Study

2021 ◽  
Vol 18 (18) ◽  
pp. 9737
Author(s):  
Víctor Moreno-Pérez ◽  
Marc Madruga-Parera ◽  
Daniel Romero-Rodríguez ◽  
Javier Sanchéz-Sanchéz ◽  
José Luis Felipe ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Muscle Weakness ◽  
National Football League ◽  
Football Players ◽  
Professional Football ◽  
Hamstring Muscle ◽  
Health Authorities ◽  
Sport Competition ◽  
National League ◽  
Major Disruption

The COVID-19 pandemic has produced a major disruption for professional football leagues that has affected the physical preparation of both football players and referees. In Spain, health authorities decreed home confinement for eight weeks, supressing the normal training routines of professional referees. After home confinement, referees had four weeks to retrain as the national football league was set to resume matches to complete the 11 games remaining. The aim of the present investigation was to assess changes in eccentric hamstring muscle strength during football competition suspension/resumption due to the COVID-19 pandemic in 21 professional football referees (mean ± SD, age: 33.4 ± 5.1 years; height: 182.4 ± 5.0 cm; body mass: 75.1 ± 4.4 kg). Eccentric hamstring muscle strength was measured with the Nordic hamstring exercise at four time points. During home confinement, referees presented the lowest value of bilateral eccentric muscle strength (300 ± 14 N). Eccentric muscle strength increased by 13.2 ± 3.7% one week after the end of home confinement (339 ± 16 N; p = 0.001, effect size (ES) = 2.8) and remained stable before the first match (343 ± 17 N; p = 0.001, ES = 3.1) and after the end of the national league (328 ± 13 N; p = 0.001, ES = 2.0). In summary, home confinement produced detraining effects in professional football referees associated with hamstring muscle weakness. In this regard, strength-based activities with body loads may be insufficient to avoid muscle weakness and other means (e.g., weights) may be necessary to maintain muscle strength. However, the 4-weeks retraining period was sufficient to resolve hamstring muscle weakness induced by the restrictions of home confinement. This information may be helpful in the case of future sport competition suspension or home quarantine due to new waves of COVID-19 pandemic.

THE EFFECT OF APPLYING SQ3R METHOD ON STUDENTS’ ACHIEVEMENT IN READING COMPREHENSION

2013 ◽  
Vol 2 (2) ◽  
Author(s):  
Pranata Royganda Sihaloho And Masitowarni Siregar
Keyword(s):  
Reading Comprehension ◽  
Research Design ◽  
Conventional Method ◽  
Experimental Research ◽  
T Test ◽  
Control Group ◽  
Multiple Choice Tests ◽  
Choice Tests ◽  
And Control ◽  
Experimental Group

The aim of this study is to discover the effect of applying SQ3R method inreading comprehension. Experimental research design is used as the research method.This research took place at SMA Nasrani 2Medan. There were 2 classes chosen as thesample with 30 students in each class. The classes were divided into two groups namelyexperimental and control group. The experimental group was taught by using SQ3Rmethod and the control group was taught by using conventional method. The instrumentused to collect the data was a set of multiple choice tests, which divided as pre test andpost test. The result of the research was analyzed by using t-test formula. The resultshowed that t-test was higher than t-table (4,23>2,00) at the level of significant 0,05with degree of freedom (df) 58. It means that hypothesis alternative (Ha) is acceptedwhich shows that SQ3R method significantly improves the student’s readingcomprehension.

scholarly journals Respiratory Muscle Weakness as a Risk Factor for Pneumonia in Older People

Gerontology ◽  
2021 ◽  
pp. 1-10
Author(s):  
Tatsuma Okazaki ◽  
Yoshimi Suzukamo ◽  
Midori Miyatake ◽  
Riyo Komatsu ◽  
Masahiro Yaekashiwa ◽  
...  
Keyword(s):  
Risk Factor ◽  
Muscle Strength ◽  
Older People ◽  
Serum Albumin ◽  
Muscle Mass ◽  
Muscle Weakness ◽  
Fat Mass ◽  
Respiratory Muscle ◽  
Respiratory Muscle Strength ◽  
Respiratory Muscle Weakness

Introduction: The respiratory muscle strength regulates the effectiveness of coughing, which clears the airways and protects people from pneumonia. Sarcopenia is an aging-related loss of muscle mass and function, the worsening of which is associated with malnutrition. The loss of respiratory and swallowing muscle strength occurs with aging, but its effect on pneumonia is unclear. This study aimed to determine the risks of respiratory muscle weakness on the onset and relapse of pneumonia in older people in conjunction with other muscle-related factors such as malnutrition. Methods: We conducted a longitudinal study with 47 pneumonia inpatients and 35 non-pneumonia controls aged 70 years and older. We evaluated the strength of respiratory and swallowing muscles, muscle mass, and malnutrition (assessed by serum albumin levels and somatic fat) during admission and confirmed pneumonia relapse within 6 months. The maximal inspiratory and expiratory pressures determined the respiratory muscle strength. Swallowing muscle strength was evaluated by tongue pressure. Bioelectrical impedance analysis was used to evaluate the muscle and fat mass. Results: The respiratory muscle strength, body trunk muscle mass, serum albumin level, somatic fat mass, and tongue pressure were significantly lower in pneumonia patients than in controls. Risk factors for the onset of pneumonia were low inspiratory respiratory muscle strength (odds ratio [OR], 6.85; 95% confidence interval [CI], 1.56–30.11), low body trunk muscle mass divided by height2 (OR, 6.86; 95% CI, 1.49–31.65), and low serum albumin level (OR, 5.46; 95% CI, 1.51–19.79). For the relapse of pneumonia, low somatic fat mass divided by height2 was a risk factor (OR, 20.10; 95% CI, 2.10–192.42). Discussion/Conclusions: Respiratory muscle weakness, lower body trunk muscle mass, and malnutrition were risk factors for the onset of pneumonia in older people. For the relapse of pneumonia, malnutrition was a risk factor.

scholarly journals Correlation between age, muscle architecture, and muscle strength in children with Erb’s palsy

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Ahmed Saad Awad ◽  
Mostafa Soliman Ali ◽  
Mohamed Ismail Elassal
Keyword(s):  
Muscle Strength ◽  
Muscle Weakness ◽  
Muscle Thickness ◽  
Study Groups ◽  
Pennation Angle ◽  
Muscle Architecture ◽  
Active Movement ◽  
Significant Relation ◽  
Erb’S Palsy ◽  
Significant Difference

Abstract Background Muscle weakness is a widespread problem in children with Erb’s palsy as it can cause changes in muscle architecture parameters, which can be detected by ultrasonography. This study was conducted to determine the relation between age, muscle architecture, and muscle strength in children with Erb’s palsy. A total of 40 children with Erb’s palsy from both sexes aged 1–2.5 years were included in this study. Muscle thickness and pennation angle were measured by ultrasonography, and muscle strength was measured using the active movement scale. Results A significant relation was found between age, muscle thickness, pennation angle, and muscle strength (P < 0.05). Moreover, a significant difference was found in muscle architecture parameters during relaxation and contraction in both study groups and in each study group (P < 0.05). Conclusion Muscle weakness in children with Erb’s palsy has an effect on muscle architecture parameters, and these parameters also increase with age.

scholarly journals Effects of whole-body vibration on quadriceps and hamstring muscle strength, endurance, and power in children with hemiparetic cerebral palsy: a randomized controlled study

2021 ◽  
Vol 26 (1) ◽  
Author(s):  
Rania G. Hegazy ◽  
Amr Almaz Abdel-aziem ◽  
Eman I. El Hadidy ◽  
Yosra M. Ali
Keyword(s):  
Cerebral Palsy ◽  
Physical Therapy ◽  
Muscle Strength ◽  
Whole Body Vibration ◽  
Whole Body ◽  
Controlled Study ◽  
Control Group ◽  
Hamstring Muscle ◽  
Post Intervention ◽  
Body Vibration

Abstract Background Hemiplegic cerebral palsy (CP) enormously affects the quadriceps and hamstring muscles. It causes weakness in the affected lower-extremity muscles in addition to muscle imbalance and inadequate power production, especially in the ankle plantar-flexor and knee extensor muscles. It also causes anomalous delayed myoelectrical action of the medial hamstring. A whole-body vibration (WBV) exercise can diminish muscle spasticity and improve walking speed, muscle strength, and gross motor function without causing unfavorable impacts in adults suffering from CP. Thus, the aim of this study is to investigate the impacts of WBV training associated with conventional physical therapy on the quadriceps and hamstring muscle strength, endurance, and power in children with hemiparetic CP. Results The post-intervention values of the quadriceps and hamstring muscle force, endurance, and power were significantly higher than the pre-intervention values for both groups (p = 0.001). The post-intervention values of the study group were significantly higher than the control group (quadriceps force, p = 0.015; hamstring force, p = 0.030; endurance, p = 0.025; power, p = 0.014). Conclusion The 8 weeks of WBV training that was added to traditional physical therapy was more successful in improving the quadriceps and hamstring muscle strength, endurance, and power in children with hemiparetic CP when compared to traditional physical therapy alone.

Respiratory mechanics in supine subjects during progressive partial curarization

1982 ◽  
Vol 52 (1) ◽  
pp. 57-63 ◽  
Author(s):  
T. J. Gal ◽  
N. S. Arora
Keyword(s):  
Muscle Strength ◽  
Muscle Weakness ◽  
Respiratory Mechanics ◽  
Handgrip Strength ◽  
Elastic Recoil ◽  
Lung Inflation ◽  
Progressive Muscle Weakness ◽  
Inspiratory Resistance ◽  
Residual Capacity ◽  
Partial Curarization

Respiratory mechanics were studied in six supine conscious volunteers during progressive muscle weakness produced by infusion of d-tubocurarine. Partial curarization was carried out to the point of abolishing head lift ability and handgrip strength. At all levels of partial paralysis, expiratory muscle strength was significantly more impaired than inspiratory strength. Despite this, subjects maintained relatively normal maximal expiratory flow rates, whereas inspiratory flows decreased significantly. The diminished inspiratory flows are not fully explained by decreased driving pressures during force inspiration, since inspiratory resistance increased significantly with the decreased flow. Inspiratory flow patterns suggest a variable extrathoracic obstruction most likely due to the absence of normal airway abductor activity during inspiration. Maximal respiratory muscle weakness decreased forced vital capacity by 29% and total lung capacity by 15%. The decreased level of lung inflation did not alter lung elastic recoil. Functional residual capacity was unchanged, but inspiratory capacity decreased by 25% and residual volume increased by 38%. These changes are in accord with predictions based on the decreased muscle strength and normal respiratory system recoil.

scholarly journals The Effectiveness of Using Social Media to Teach Writing Hortatory Exposition Text at Eleventh Grade of SMAN 1 Ngadiluwih

2021 ◽  
Vol 3 (1) ◽  
pp. 77
Author(s):  
Nila Sari ◽  
Agus Amroni
Keyword(s):  
Social Media ◽  
Research Design ◽  
Quantitative Research ◽  
Teaching And Learning ◽  
T Test ◽  
Teaching Writing ◽  
Learning Activity ◽  
Research Approach ◽  
Writing Test ◽  
The Mean

The aim of this research was to motivate students by using social media to teach writing hortatory exposition text. The researcher chooses two media such us Instagram and Facebook. The application of teaching writing of hortatory exposition text at eleventh grade of SMAN 1 Ngadiluwih by using social media Instagram and Facebook to hold the interesting and enjoyable learning activity. This research was quantitative research approach, whereas the research design used true experimental. This research chosen randomly in Instagram class (social one class) and Facebook class (social two class). The instrument used in the research was writing test. The procedure lasted 4 meeting and 1 meeting to do test. The result of t-test showed that: the mean score of Instagram class (M= 68.79) is lower than Facebook class (M= 77.07), and independent sample t-test which values of the sig-2 tailed is 0.000 and 0.000<0.005. Thus, it can be concluded that Facebook is more effective than Instagram in teaching and learning English Hortatory Exposition Text.

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