Electromyography Activation Levels of the 3 Gluteus Medius Subdivisions During Manual Strength Testing

2015 ◽  
Vol 24 (3) ◽  
pp. 244-251
Author(s):  
Roald Otten ◽  
Johannes L. Tol ◽  
Per Holmich ◽  
Rodney Whiteley
Keyword(s):  
Study Design ◽  
Repeated Measures ◽  
Gluteus Medius ◽  
Strength Testing ◽  
Cross Sectional ◽  
Physically Active ◽  
Rehabilitation Programs ◽  
Significant Difference ◽  
The Individual ◽  
Hip Internal Rotation

Study Design:Cross-sectional.Context:Gluteus medius (GM) muscle dysfunction is associated with overuse injury. The GM is functionally composed of 3 separate subdivisions: anterior, middle, and posterior. Clinical assessment of the GM subdivisions is relevant to detect strength and activation deficits and guide specific rehabilitation programs. However, the optimal positions for assessing the strength and activation of these subdivisions are unknown.Objective:The first aim was to establish which strength-testing positions produce the highest surface electromyography (sEMG) activation levels of the individual GM subdivisions. The second aim was to evaluate differences in sEMG activation levels between the tested and contralateral (stabilizing) leg.Method:Twenty healthy physically active male subjects participated in this study. Muscle activity using sEMG was recorded for the GM subdivisions in 8 different strength-testing positions and analyzed using repeated-measures analysis of variance.Results:Significant differences between testing positions for all 3 GM subdivisions were found. There were significant differences between the tested and the contralateral anterior and middle GM subdivisions (P < .01). The posterior GM subdivision showed no significant difference (P = .154).Conclusion:Side-lying in neutral and side-lying with hip internal rotation are the 2 positions recommended to evaluate GM function and guide specific GM rehabilitation.

Safety climate and related factors in rehabilitation nurses of hospitals in Iran

Work ◽  
2021 ◽  
pp. 1-8
Author(s):  
Javad vatani ◽  
Zahra Khanikosarkhizi ◽  
Mohammad Ali Shahabi Rabori ◽  
mohammad khandan ◽  
Mohsen aminizadeh ◽  
...  
Keyword(s):  
Safety Climate ◽  
Cross Sectional Study ◽  
P Value ◽  
Related Factors ◽  
Cross Sectional ◽  
Climate Assessment ◽  
Safety Work ◽  
Significant Difference ◽  
Training Courses ◽  
The Individual

BACKGROUND: Safety climate is a common insight of staff that indicates individuals’ attitudes toward safety and priority of safety at work. OBJECTIVES: Nursing is a risky job where paying attention to safety is crucial. The assessment of the safety climate is one of the methods to measure the safety conditions in this occupation. The aim of this study was to assess the safety climate of rehabilitation nurses working in hospitals in Tehran. METHODS: This is a cross-sectional study which was carried out on 140 rehabilitation nurses selected from all hospitals and clinics in Tehran in 2019. To collect the required data, a two-section questionnaire was used. The first section was related to demographic factors and the second part (22 statements) was to measure the safety climate using nurses’ safety climate assessment questionnaire. The collected data were analyzed by SPSS V16 using independent t-test, ANOVA, Kruskal-Wallis and Mann-Whitney U test at the 5% level. RESULTS: Findings showed that the total mean of safety climate was 3.06±0.56. According to the results, a significant difference was found between the positive and negative satisfaction of nurses with safety climates (P-value = 0.03), communication with nurses (P-value = 0.01) and supervisors’ attitude (P-value = 0.02). Furthermore, a significant difference in safety climate between the individual with the second job and the individual without second could be observed (P-value = 0.01). CONCLUSIONS: The results indicated that the safety climate was not at an acceptable level. Thus, it is essential to introduce safety training courses (e.g. safety, work-rest balance, and so on) and to improve the safety performance at work.

scholarly journals Comparative physical activity as a global question to assess physical activity among university students

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Katharina Diehl ◽  
Alessia Brassat ◽  
Jennifer Hilger-Kolb
Keyword(s):  
Physical Activity ◽  
University Students ◽  
Online Survey ◽  
Group Level ◽  
Comparative Measurement ◽  
Cross Sectional ◽  
Physically Active ◽  
Comparative Optimism ◽  
Individual Assessment ◽  
The Individual

Abstract Background To assess physical activity (PA), a comparative measurement – evaluating one’s own PA compared to others – may be an appropriate method. In previous studies, the use of comparative measurements led to an effect known as unrealistic comparative optimism (UCO) – people being unrealistically optimistic about their behavior. Our aim was to use this comparative measurement in university students to quantify the prevalence of UCO at the group level and to draw conclusions on its validity. Methods We used data from the Nutrition and Physical Activity in Adolescence Study (NuPhA), a cross-sectional online survey that included only self-reports (n = 689). To assess PA among students, they were asked to rate their PA level compared to that of their same-aged fellow students. In addition, we used the Godin-Shephard leisure-time PA questionnaire and other questions on PA for comparisons. We used bivariate and cluster-based analyses to identify potential UCO. Results We found that UCO at the group level led to an uneven distribution, with a higher proportion of students who rated themselves as being more physically active than average. However, the individual assessment of PA with a single and simple comparative question seemed to be valid. Discussion A global single comparative question seems useful for studies where PA is measured as a covariate in university students.

scholarly journals ESTILO DE VIDA E SUAS RELAÇÕES COM HIPERTENSÃO ARTERIAL SISTÊMICA E DIABETES MELLITUS

2018 ◽  
Vol 7 (1) ◽  
pp. 361-373
Author(s):  
Elias Ferreira Porto ◽  
Claudia Kumpel ◽  
Anselmo Cordeiro de Souza ◽  
Izabel Maria de Oliveira ◽  
Karoline Mayara de Aquiles Bernardo ◽  
...  
Keyword(s):  
Diabetes Mellitus ◽  
General Health ◽  
Healthy Lifestyle ◽  
Cross Sectional Study ◽  
Health Perception ◽  
Control Group ◽  
Healthy Individuals ◽  
Cross Sectional ◽  
Significant Difference ◽  
The Individual

Avaliar o estilo de vida e percepção do estado geral de saúde em pacientes com Diabetes Mellitus tipo 2 - DM, Hipertensão Arterial Sistêmica - HAS e indivíduos saudáveis. Métodos: Estudo transversal, com grupo controle. Avaliado estilo de vida com Questionário Fantástico, e percepção geral de saúde via uma pergunta âncora de diabéticos do tipo 2 (n = 37), hipertensos (n = 60), e indivíduos saudáveis (n = 43). Análise estatística descritiva, analise de variância, e razão de chance (Odds Rattio – OR). Resultados: Verificou-se diferença significante (p0,0001) na pontuação do Questionário Fantástico entre os indivíduos saudáveis em relação DM e HAS. O pior desempenho no estilo de vida para os três grupos foi nos domínios de atividade física e alimentação. O risco do indivíduo com HAS afirmar que sua saúde é pior do que indivíduos da mesma faixa etária foi OR 1.8 (1.415 a 2.419) e para os indivíduos diabéticos OR de 2.8 (1.776 a 4.579) em relação a indivíduos saudáveis. Conclusão: Diabéticos e hipertensos têm um pior estilo de vida e percepção geral de saúde do que indivíduos saudáveis. Assim o estilo de vida saudável pode reduzir a prevalência e auxiliar no controle de doenças já estabelecidas.Palavras-chave: Estilo de vida. Hipertensão Arterial. Diabetes Mellitus. ABSTRACT: To evaluate the lifestyle and perception of general health status in patients with type 2 diabetes mellitus - DM, systemic arterial hypertension - SAH and healthy individuals. Methods: Cross-sectional study with control group. (N = 37), hypertensive (n = 60), and healthy subjects (n = 43) were assessed using a Fantastic Questionnaire, and general health perception via an anchor question. Descriptive statistical analysis, analysis of variance, and odds ratio (Odds Rattio - OR). Results: There was a significant difference (p 0.0001) in the score of the Fantastic Questionnaire among healthy individuals in relation to DM and SAH. The worst lifestyle performance for the three groups was in the physical activity and feeding domains. The risk of the individual with SAH to state that their health is worse than individuals of the same age group was OR 1.8 (1.415 to 2.419) and for the diabetic individuals OR of 2.8 (1.776 to 4.579) in relation to healthy individuals. Conclusion: Diabetics and hypertensives have a worse lifestyle and overall health perception than healthy individuals. Thus the healthy lifestyle can reduce the prevalence and help in the control of already established diseases.Keywords: Lifestyle. Hypertension. Diabetes Mellitus.

scholarly journals Genetic homozygosity as a marker of smoking dependency

Genetika ◽  
2020 ◽  
Vol 52 (3) ◽  
pp. 1009-1019
Author(s):  
Slavko Brankovic ◽  
Dejan Nikolic ◽  
Dragoslav Marinkovic ◽  
Suzana Cvjeticanin
Keyword(s):  
Cross Sectional Study ◽  
Male Gender ◽  
Sectional Study ◽  
Cross Sectional ◽  
Male And Female ◽  
Mean Values ◽  
Individual Variations ◽  
Significant Difference ◽  
The Mean ◽  
The Individual

The aim of our study was to evaluate the morphogenetic variability as a marker of smoking dependency in adult smokers versus controls and to investigate the presence and the degree of morphogenetic variability difference between male and female smokers versus same gender controls. The cross-sectional study evaluated 241 smokers and 185 nonsmoker individuals as controls. We analyzed 17 homozygous recessive characteristics (HRC). There was a significant difference in the individual variations of 17 HRCs between the controls and smokers (??2=61.400, p<0.001; for females ??2=79.440, p<0.001; for males ??2=84.972, p<0.001). The mean values of HRCs significantly differed between smokers and controls (MV?SEM(Controls) -4.79?0.13, MV?SEM(Smokers) -5.70?0.12; p<0.001). For males, presence of 6/17 (35.29% genetic homozygosity) HRCs (OR=6.12) was to the certain degree predictor for smoking dependency. Higher degree of genetic homozygosity, changed variability and male gender, might be some among potential numerous factors that could have impact on smoking development and dependence.

scholarly journals Efektivitas Alih Baring Tiap 2 Jam Terhadap Pencegahan Ulkus Dekubitus pada Pasien Pasca Stroke dengan Tirah Baring Lama di Bangsal Saraf RSUD Arifin Achmad Pekanbaru

2017 ◽  
Vol 4 (2) ◽  
pp. 133
Author(s):  
Bevi Dewi Citra ◽  
Hermes C. Sitompul ◽  
Tuti Restuastuti
Keyword(s):  
Intervention Study ◽  
Preventive Intervention ◽  
Decubitus Ulcer ◽  
Medical Rehabilitation ◽  
Neurological Deficits ◽  
Stroke Patients ◽  
Cross Sectional ◽  
Post Stroke ◽  
Rehabilitation Programs ◽  
Significant Difference

Neurological deficits on stroke patients can caused immobility. Decubitus ulcer is one of immobilty’s complication.Two hours repositioning is one of medical rehabilitation programs in decubitus prevention. The aim of this study is todescribe effectiveness of two hours repositioning to prevent decubitus ulcer, especially on post-stroke patients. Thisstudy was a preventive intervention study with cross-sectional approach. Sample consists of 32 patients. Group Iconsists of 16 patients with repositioning intervention. On the otherhand, group II consists of 16 patients withoutrepositioning intervention. Then, this two groups were compared and were looked for the effectiveness. from thisstudy, we knew that prevalence of decubitus ulcer on post-stroke patients are 19.4% with the effectiveness of two hoursrepositioning is 87.5%. There was significant difference between these two groups to prevent decubitus. it occurred ongeriatric patients with percentage of 75%. Its Proportion for female: male are 2:1. It is commonly occurred on firstweek hospitalization, especially grade 2 (33.3%). It is mostly located on sacrum (100%).

Trunk Inclination During Squatting is a Better Predictor of the Knee-Extensor Moment Than Shank Inclination

2020 ◽  
pp. 1-6
Author(s):  
Rachel K. Straub ◽  
Adam J. Barrack ◽  
Jordan Cannon ◽  
Christopher M. Powers
Keyword(s):  
Repeated Measures ◽  
Knee Flexion ◽  
Stepwise Regression ◽  
Knee Extensor ◽  
Healthy Individuals ◽  
Cross Sectional ◽  
Trunk Inclination ◽  
Trunk Posture ◽  
The Individual ◽  
Segment Orientation

Context: A limitation of previous studies on squatting mechanics is that the influence of trunk and shank inclination on the knee-extensor moment (KEM) has been studied in isolation. Objective: The purpose of the current study was to determine the influence of segment orientation on the KEM during freestanding barbell squatting. Design: Repeated-measures cross sectional. Setting: University research laboratory. Participants: Sixteen healthy individuals (8 males and 8 females). Intervention: Each participant performed 8 squat conditions in which shank and trunk inclinations were manipulated. Main Outcome Measures: 3D kinematic and kinetic data were collected at 250 and 1500 Hz, respectively. Regression analysis was conducted to identify the individual relationships between the KEM and the trunk and shank inclination at 60° and 90° of knee flexion. To identify the best predictor(s) of the KEM, stepwise regression was implemented. Results: Increased shank inclination increased the KEM (P < .001, R2 = .21–.25). Conversely, increased trunk inclination decreased the KEM (P < .001, R2 = .49–.50). For the stepwise regression, trunk inclination entered first and explained the greatest variance in the KEM (all P < .001, R2 = .49–.50). Shank inclination entered second (all P < .010, R2 = .53–.54) and explained an additional 3% to 5% of the variance. Conclusions: Our results confirm that inclination of the trunk and shank have an opposing relationship with the KEM. Increased forward shank posture increases the KEM, while increased forward trunk posture decreases the KEM. However, when viewed in combination, the trunk was the superior predictor of the KEM, highlighting the fact that increased quadriceps demand created by a forward shank can be offset by trunk inclination.

Hard, soft and off-the-shelf foot orthoses and their effect on the angle of the medial longitudinal arch: A biplane fluoroscopy study

2019 ◽  
Vol 43 (3) ◽  
pp. 331-338 ◽  
Author(s):  
Megan Balsdon ◽  
Colin Dombroski ◽  
Kristen Bushey ◽  
Thomas R Jenkyn
Keyword(s):  
Study Design ◽  
Foot Orthoses ◽  
Medial Longitudinal Arch ◽  
Level Of Evidence ◽  
Cross Sectional ◽  
Longitudinal Arch ◽  
Significant Difference ◽  
Skeletal Kinematics ◽  
Dynamic Gait ◽  
Foot Orthosis

Background: Foot orthoses have proven to be effective for conservative management of various pathologies. Pathologies of the lower limb can be caused by abnormal biomechanics such as irregular foot structure and alignment, leading to inadequate support. Objectives: To compare biomechanical effects of different foot orthoses on the medial longitudinal arch during dynamic gait using skeletal kinematics. Study design: This study follows a prospective, cross-sectional study design. Methods: The medial longitudinal arch angle was measured for 12 participants among three groups: pes planus, pes cavus and normal arch. Five conditions were compared: three orthotic devices (hard custom foot orthosis, soft custom foot orthosis and off-the-shelf Barefoot Science©), barefoot and shod. An innovative method, markerless fluoroscopic radiostereometric analysis, was used to measure the medial longitudinal arch angle. Results: Mean medial longitudinal arch angles for both custom foot orthosis conditions were significantly different from the barefoot and shod conditions ( p < 0.05). There was no significant difference between the off-the-shelf device and the barefoot or shod conditions ( p > 0.05). In addition, the differences between hard and soft custom foot orthoses were not statistically significant. All foot types showed a medial longitudinal arch angle decrease with both the hard and soft custom foot orthoses. Conclusion: These results suggest that custom foot orthoses can reduce motion of the medial longitudinal arch for a range of foot types during dynamic gait. Level of evidence: Therapeutic study, Level 2. Clinical relevance Custom foot orthoses support and alter the position of the foot during weightbearing. The goal is to eliminate compensation of the foot for a structural deformity or malalignment and redistribute abnormal plantar pressures. By optimizing the position of the foot, the medial longitudinal arch (MLA) will also change and quantifying this change is of interest to clinicians.

scholarly journals Human Milk Oligosaccharide, Phospholipid, and Ganglioside Concentrations in Breast Milk from United Arab Emirates Mothers: Results from the MISC Cohort

Nutrients ◽  
2019 ◽  
Vol 11 (10) ◽  
pp. 2400 ◽  
Author(s):  
Paul McJarrow ◽  
Hadia Radwan ◽  
Lin Ma ◽  
Alastair K.H. MacGibbon ◽  
Mona Hashim ◽  
...  
Keyword(s):  
Breast Milk ◽  
Human Milk ◽  
United Arab Emirates ◽  
High Performance ◽  
Post Partum ◽  
Human Breast Milk ◽  
Mature Milk ◽  
Cross Sectional ◽  
Significant Difference ◽  
The Individual

Human milk oligosaccharides (HMOs), phospholipids (PLs), and gangliosides (GAs) are components of human breast milk that play important roles in the development of the rapidly growing infant. The differences in these components in human milk from the United Arab Emirates (UAE) were studied in a cross-sectional trial. High-performance liquid chromatography‒mass spectrometry was used to determine HMO, PL, and GA concentrations in transitional (5–15 days) and mature (at 6 months post-partum) breast milk of mothers of the United Arab Emirates (UAE). The results showed that the average HMO (12 species), PL (7 species), and GA (2 species) concentrations quantified in the UAE mothers’ transitional milk samples were (in mg/L) 8204 ± 2389, 269 ± 89, and 21.18 ± 11.46, respectively, while in mature milk, the respective concentrations were (in mg/L) 3905 ± 1466, 220 ± 85, and 20.18 ± 9.75. The individual HMO concentrations measured in this study were all significantly higher in transitional milk than in mature milk, except for 3 fucosyllactose, which was higher in mature milk. In this study, secretor and non-secretor phenotype mothers showed no significant difference in the total HMO concentration. For the PL and GA components, changes in the individual PL and GA species distribution was observed between transitional milk and mature milk. However, the changes were within the ranges found in human milk from other regions.

The acute effects of a low and high dose of oral l-arginine supplementation in young active males at rest

2011 ◽  
Vol 36 (3) ◽  
pp. 405-411 ◽  
Author(s):  
Scott C. Forbes ◽  
Gordon J. Bell
Keyword(s):  
Body Mass ◽  
Repeated Measures ◽  
Plasma Concentrations ◽  
Insulin Response ◽  
High Dose ◽  
Placebo Condition ◽  
Double Blind ◽  
Physically Active ◽  
Significant Difference ◽  
Arginine Supplementation

l-arginine (2-amino-5-guanidinovaleric acid) is a conditionally essential amino acid. Intravenous (IV) administration of l-arginine invokes a large metabolic (nitrate/nitrite (NOx)) and hormonal (growth hormone (GH), insulin-like growth factor 1 (IGF-1), and insulin) response; however, research examining oral l-arginine supplementation is conflicting, potentially owing to dose. The purpose of this study was examine a low and high dose of oral l-arginine on blood l-arginine, NOx, GH, IGF-1, and insulin response. Fourteen physically active males (age: 25 ± 5 years; weight: 78.0 ± 8.5 kg; height: 179.4 ± 4.7 cm) volunteered to be in a randomized, double-blind, repeated-measures study. Following an overnight fast, an IV catheter was placed in a forearm vein and a resting blood sample was drawn at ∼0800 hours. Each subject was then provided 1 of 3 treatment conditions (placebo, low (0.075 g·kg–1 of body mass), or high (0.15 g·kg–1 of body mass of l-arginine)). Blood samples were drawn at 30, 60, 90, 120, and 180 min after consumption. l-arginine plasma concentrations significantly increased (p < 0.001) to a similar level at any time point in both the low- and high-dose conditions; there was no change over time in the placebo condition. There was no significant difference between conditions for NOx, GH, IGF-1, or insulin. Based on these findings, a low dose of l-arginine was just as effective at increasing plasma l-arginine concentrations as a high dose; however, neither dose was able to promote a significant increase in NOx, GH, IGF-1, or insulin at rest.

scholarly journals Haematological Alterations among Cement Loaders in Port Harcourt, Nigeria

2020 ◽  
pp. 1-8
Author(s):  
Ransom Baribefii Jacob ◽  
Chinyelu Obianuju Mba ◽  
Patience Deborah Iduh
Keyword(s):  
Blood Cell ◽  
Cell Volume ◽  
Study Design ◽  
Haemoglobin Concentration ◽  
Healthy Male Subject ◽  
Cement Dust ◽  
Cross Sectional ◽  
Mean Cell Volume ◽  
Port Harcourt ◽  
Significant Difference

Background: Exposure to cement dust without necessary precautions to prevent its inhalation is found to cause respiratory, dermatological, ocular as well as hematological problems and this is a matter of great concern to the health of cement loaders. Aim of Study: This study was aimed at determining haematological alterations among cement loaders in Port Harcourt, Nigeria. Study Design: Cross sectional study design. Methodology: A total of 100 apparently healthy male subject consisting of 50 cement loaders and 50 non cement loaders aged between the ages of 20- 45years old were recruited for the study. Four millilitres (4 mls) of blood was collected aseptically from the antecubital vein of each participant using standard venepuncture technique into ethylene diamine tetra acetic acid (EDTA) anticoagulated vacutainer bottles with proper mixing to avoid blood clotting and then analysed using Sysmex haematology autoanalyser. Graphpad prism version 6.2 was used to analyse the data obtained. Results: Results obtained showed a statistically higher value (p<0.05) in platelet count (p=0.0001), lower values (p<0.05) in haemoglobin concentration (Hb), Packed cell volume (PCV), Mean cell volume (MCV) and Mean cell haemoglobin (MCH) (p=0.0001). No significant difference (p>0.05) was observed in the mean red blood cell (RBC) count value (p=0.3110), white blood cell (WBC) count (p=0.8138) and mean cell haemoglobin concentration (MCHC) (p=0.0584) respectively. Conclusion and Recommendation: This study has confirmed that there are haematological alterations among cement loaders in Port Harcourt, Nigeria and these alterations are attributed to inhalation of cement dust during work. It is recommended that cement loaders should be mandated to use appropriate personal protective equipment during work hours and around areas where cement dust are generated.

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