scholarly journals Four Weeks of Muscular Endurance Resistance Training Does Not Alter Fatigue Index

2018 ◽  
Vol 6 (3) ◽  
pp. 32
Author(s):  
John W. Farrell III ◽  
Daniel J. Blackwood ◽  
Rebecca D. Larson
Keyword(s):  
Resistance Training ◽  
Significant Relationship ◽  
Muscular Endurance ◽  
Fatigue Index ◽  
Significant Group ◽  
Pearson’S Correlation ◽  
Leg Extension ◽  
Pearson's Correlation ◽  
Blood Lactate Accumulation ◽  
The Relationship

Background of Study: The implementation of a muscular endurance resistance training (MERT) program has been shown to be beneficial in augmenting the onset of blood lactate accumulation (OBLA). However, the effects of MERT on local muscular endurance has not been investigated. Objectives: The purposes of the current study were to investigate the effects of 4 weeks of MERT on local muscular endurance, and the relationship between OBLA and fatigue index (FI). Methods: Endurance trained males were randomly designated to either the experimental (EX) or control (CON) group: 9 EX and 8 CON. All participants continued current aerobic training. Baseline measures included OBLA, 1 repetition maximum (1RM) for: leg press (LP), leg curl (LC), and leg extension (LE). FI of the quadriceps was assessed via a dynamometer and the Thorstesson protocol. In addition, the EX group performed supervised MERT training for four weeks. A two way ANOVA was used to assess group and time differences in performance measures. The relationship between OBLA and FI was assessed using Pearson’s Correlation. Results: No significant group differences were observed in all baseline measurements (p>0.05). There were no significant group or time differences for OBLA and FI (p>0.05). Pearson’s correlation revealed no significant relationship (p>0.05, r=<0.01) existed between FI and OBLA. Conclusions: It was observed that four weeks of MERT provided an insufficient stimulus to improve OBLA and FI, and no significant relationship existed between OBLA and FI. Athletes using MERT should include additional mesocycles for favorable adaptations to local muscular endurance and OBLA.

scholarly journals Metabolic Response to Four Weeks of Muscular Endurance Resistance Training

2017 ◽  
Vol 5 (4) ◽  
pp. 10
Author(s):  
John W. Farrell III ◽  
David J. Lantis ◽  
Carl J. Ade ◽  
Debra A. Bemben ◽  
Rebecca D. Larson
Keyword(s):  
Resistance Training ◽  
Aerobic Exercise ◽  
Blood Lactate ◽  
Metabolic Response ◽  
Aerobic Performance ◽  
Control Group ◽  
Muscular Endurance ◽  
Significant Group ◽  
Leg Extension ◽  
Metabolic Variables

Background: Previous investigations have shown that muscular endurance resistance training (MERT) is conducive in improving the onset of blood lactate accumulation (OBLA). However, the metabolic response and time course for adaption is still unclear. Objective: The aims of the current study were to evaluate and track the metabolic response to an individual session of MERT as well as to assess performance adaptations of supplementing an aerobic exercise training program with four weeks of MERT. Methods: Seventeen aerobically active men were randomly assigned to either the experimental (EX) or control group (CON), 9 EX and 8 CON. Baseline measures included a graded exercise test (GXT) and 1-repetition maximum (1RM) testing for leg press (LP), leg curl (LC), and leg extension (LE). CON continued their regular aerobic activity while the EX supplemented their regular aerobic exercise with 4 weeks of MERT. Results: No significant group differences were observed for all pre-training variables. Following four weeks of training no significant differences in cardiorespiratory or metabolic variables were observed for either group. However, significant improvements in LC and LE 1-RM were observed in EX compared to CON. Substantial accumulations in blood lactate were observed following each MERT session. Conclusion: Four weeks of MERT did not improve cardiorespiratory or metabolic variables, but did significantly improve LC and LE. MERT was also observed to induce a blood lactate response similar to that of HIIT. These findings suggest greater than four weeks is need to see metabolic adaptations conducive for improved aerobic performance using MERT.      

scholarly journals Relationship Between Fatigue Index and Number of Repetition Maxima with Sub-Maximal Loads in Biceps Curl

2013 ◽  
Vol 38 ◽  
pp. 169-181 ◽  
Author(s):  
Ekim Pekünlü ◽  
Ozan Atalağ
Keyword(s):  
Significant Relationship ◽  
Training Programs ◽  
Correlation Coefficients ◽  
Statistical Analyses ◽  
Muscular Endurance ◽  
Fatigue Index ◽  
Test Protocol ◽  
Training Adaptations ◽  
Maximal Load ◽  
The Relationship

Abstract The aim of this study was to investigate the relationship between the number of repetition maxima to volitional failure (RM) at 60%, 75%, 90% of 1RM and fatigue index (FI), a determinant of the muscular endurance level. Thirty four resistance trained male participants attended two testing sessions. The first session was conducted to assess 1RM load and RM at 60%, 75% and 90% of 1RM in the supine biceps curl (SBC) exercise. In the second session, a FI test protocol consisting of five sets of SBC with 90 s rest between sets was performed to determine FI values. Each set was performed to volitional failure using a sub-maximal load in the range of 15-20RM. Hypothetical high FI and low FI groups (17 participants with the highest and lowest FI values, respectively) were formed for statistical analyses. ANOVA results revealed that RM at 60%, 75%, 90% of 1RM were not significantly different between FI groups when controlled for mean repetition tempo (p=0.11, p=0.38, p=0.13, respectively). Pearson’s correlation coefficients revealed that no significant relationship was present between FI values and RM at 60%, 75%, 90% of 1RM (p=0.40, p=0.46, p=0.14, respectively). In conclusion, the muscular endurance level of participants defined in terms of FI value was not an indicator of RM in SBC. Therefore, athletes with different muscular endurance levels can use similar percentages of 1RM in biceps curl exercise in their training programs when the aim is to elicit training adaptations related to specific RM zones.

Relationship amongst ResearchGate altmetric indicators and Scopus bibliometric indicators

2015 ◽  
Vol 116 (9/10) ◽  
pp. 564-577 ◽  
Author(s):  
RISHABH SHRIVASTAVA ◽  
Preeti Mahajan
Keyword(s):  
Sample Size ◽  
Correlation Coefficients ◽  
Strong Positive Correlation ◽  
Bibliometric Indicators ◽  
Pearson’S Correlation ◽  
Content Type ◽  
Positive Correlation ◽  
Pearson's Correlation ◽  
Different Characteristics ◽  
The Relationship

Purpose – The purpose of this paper is twofold. First, the study aims to investigate the relationship between the altmetric indicators from ResearchGate (RG) and the bibliometric indicators from the Scopus database. Second, the study seeks to examine the relationship amongst the RG altmetric indicators themselves. RG is a rich source of altmetric indicators such as Citations, RGScore, Impact Points, Profile Views, Publication Views, etc. Design/methodology/approach – For establishing whether RG metrics showed the same results as the established sources of metrics, Pearson’s correlation coefficients were calculated between the metrics provided by RG and the metrics obtained from Scopus. Pearson’s correlation coefficients were also calculated for the metrics provided by RG. The data were collected by visiting the profile pages of all the members who had an account in RG under the Department of Physics, Panjab University, Chandigarh (India). Findings – The study showed that most of the RG metrics showed strong positive correlation with the Scopus metrics, except for RGScore (RG) and Citations (Scopus), which showed moderate positive correlation. It was also found that the RG metrics showed moderate to strong positive correlation amongst each other. Research limitations/implications – The limitation of this study is that more and more scientists and researchers may join RG in the future, therefore the data may change. The study focuses on the members who had an account in RG under the Department of Physics, Panjab University, Chandigarh (India). Perhaps further studies can be conducted by increasing the sample size and by taking a different sample size having different characteristics. Originality/value – Being an emerging field, not much has been conducted in the area of altmetrics. Very few studies have been conducted on the reach of academic social networks like RG and their validity as sources of altmetric indicators like RGScore, Impact Points, etc. The findings offer insights to the question whether RG can be used as an alternative to traditional sources of bibliometric indicators, especially with reference to a rapidly developing country such as India.

Muscular Endurance and Physical Capacity to Perform Work of Adolescents with Mental Retardation

1998 ◽  
Vol 7 (3) ◽  
pp. 197-205 ◽  
Author(s):  
Christine B. Stopka ◽  
Kimberly L. Zambito ◽  
David G. Suro ◽  
Kevin S. Pearson ◽  
Ronald A. Siders ◽  
...  
Keyword(s):  
Young Adults ◽  
Resistance Training ◽  
Repeated Measures ◽  
Physical Capacity ◽  
Adolescents And Young Adults ◽  
Muscular Endurance ◽  
Total Work ◽  
Resistance Training Program ◽  
Rf Test ◽  
Leg Extension

The purpose of this study was to evaluate gains in muscular endurance and physical capacity to perform work in 22 adolescents and young adults (ages 13-22 years) with MR. The participants were tested before and after two consecutive 3-week sessions of supervised resistance training. Specific muscle strength was evaluated using a three repetition maximum (3RM) test, and muscular endurance was assessed using a repetition to failure (RF) test at 60% of the 3RM. The chest press, leg extension, and torso arm exercises were tested. Participants trained twice per week during the training intervals. The data were analyzed using a one-way ANOVA for repeated measures. Significant increases (p ≤.05) in 3RM, RF, and total work performed during the RF test were found for the leg extension and torso arm exercises. Significant increases (p ≤.05) in RF performance and total work performed during the RF test were found in the chest press. These results demonstrate that adolescents and young adults with MR can experience significant gains in muscular strength and endurance through a supervised resistance training program.

scholarly journals The role of financial awareness for viable and sustainable small-medium enterprises in Kwa-Zulu Natal, Durban

2021 ◽  
Author(s):  
◽  
Thabiso Sthembiso Msomi
Keyword(s):  
Regression Analysis ◽  
Regression Model ◽  
Financial Accounting ◽  
Access To Finance ◽  
Pearson’S Correlation ◽  
Absolute Value ◽  
Pearson's Correlation ◽  
R Value ◽  
Financial Awareness ◽  
The Relationship

The objective of this study is to examine financial awareness for viable and sustainable smallmedium-enterprises in Kwa-Zulu Natal, Durban. In this study, the researcher examined factors for SME sustainability and viability as they influence organisational survival. The specific objectives are outlined as follows: to examine the influence of financial awareness on SME viability and sustainability; to establish the relationship between financial accounting skills and sustainable SMEs; to establish the relationship between financial awareness and financial accounting skills; and to determine the Influences of budgeting and financial awareness on SME sustainability. The quantitative research method was adopted for this study and the purposive sampling technique was chosen to select the participants for this study. The study collected primary data from respondents who are owners of SMEs in the retail, construction, manufacturing sectors, etc. Data was analysed using SPSS. A total of 310 research questionnaires was administered and 304 research questionnaires were returned for analysis (giving a 98% response rate). A regression analysis and Pearson’s correlation analysis were conducted to address the specific objectives of the study. The study identified access to market, access to finance and financial accounting skills as the independent variables, while SME sustainability was the dependent variable of the regression model. The findings suggest that access to finance has the largest absolute value (0.425), which indicates that access to finance uniquely accounts for the larger proportion of the variance in the regression model. The outcome of Pearson’s correlation shows moderate correlation (r value is 0.531) between financial accounting skills and sustainable SMEs. Moreover, there was a weak correlation (r value is 0.457) between financial awareness and financial accounting skills. The outcome of the regression analysis suggests that budgeting has the largest absolute value (0.372), which indicates that budgeting uniquely accounts for the largest proportion of the variance in the regression analysis. The Exploratory Factor Analysis revealed nine factors that are significant to ensure sustainability and viability. The implication of the outcome is that access to finance and budgeting accounts for SME sustainability. Based on the findings from this research, it is recommended that SMEs owners should pay much attention to access to finance and budgeting in running their businesses. Again, employee performance reviews contribute to enhancing the financial accounting skills and knowledge of staff of SMEs as well. They should seek expert or professional advice before taking a loan and they should avoid loan sharks as the interest charged by loan sharks are very high which may lead to potential debt trap. It is suggested that Government agencies should help SMEs to market their products and keep their businesses viable.

scholarly journals Prediction of Marital Burnout Based on Feelings of Loneliness and Emotional Divorce in Infertile Women

2021 ◽  
Vol 11 (5) ◽  
pp. 323-332
Author(s):  
Samaneh Zareh Zardini ◽  
◽  
Alireza Jafari ◽  
Mohammad Ghamari ◽  
◽  
...  
Keyword(s):  
Social Network ◽  
Multiple Regression ◽  
Social Factors ◽  
Significant Relationship ◽  
Positive Relationship ◽  
Questionnaire Data ◽  
Pearson’S Correlation ◽  
Infertile Women ◽  
Pearson's Correlation ◽  
Convenience Sampling

Background: Infertility is one of the most painful experiences of life leads to marital burnout. Psychological, emotional, and social factors affect marital burnout of infertile women. This study was done to predict marital burnout based on feelings of loneliness and emotional divorce in infertile women. Methods: The method of the research was descriptive-correlational. The participants were women (aged 25-45) referring to Ibn-e Sina Infertility Clinic in 2019 in Tehran. A sample of 175 participants was selected by convenience sampling and completed the Marital Burnout questionnaire, Feeling of Longlines questionnaire, and Emotional Divorce questionnaire. Data were analyzed by Pearson’s correlation and multiple regression using SPSS v. 22. Results: The results indicated that there was a significant and positive relationship between loneliness and its subscales (lack of intimacy and lack of social network) (r= 0.62) and also a positive and significant relationship was found between emotional divorce and its subscales (feeling of separation from each other, feeling of loneliness the need for a companion, boredom, and restlessness) and marital burnout (r= 0.65). Also, feeling lonely and its subscales and emotional divorce and its subscales could predict the marital boredom of infertile women (P<0.01). Conclusion: Feeling lonely and emotional divorce have a significant and positive relationship with marital boredom and can predict marital boredom in infertile women.

scholarly journals Factor Analysis Approach to Classify COVID-19 Datasets in Several Regions

2021 ◽  
Author(s):  
Mohammad Reza Mahmoudi ◽  
Dumitru Baleanu ◽  
Shahab S. Band ◽  
Amir Mosavi
Keyword(s):  
Factor Analysis ◽  
Analysis Approach ◽  
Pearson’S Correlation ◽  
Pearson's Correlation ◽  
The Relationship

The aim of this research is to investigate the relationship between the counts of cases with Covid-19 and the deaths due to it in seven countries that are severely affected by the pandemic. First, the Pearson’s correlation is used to determine the relationships among these countries. Then, the factor analysis is applied to categorize these countries based on their relationships.

scholarly journals The relationship between psychological health and spiritual wellbeing in Iranian stoma patients

2019 ◽  
Vol 17 (Sup5) ◽  
pp. S18-S22
Author(s):  
Hossein Rafiei ◽  
Kazem Hosseinzadeh ◽  
Mohammad Javad Hoseinabadi-Farahani ◽  
Ladan Naseh ◽  
Ali Razaghpoor ◽  
...  
Keyword(s):  
Psychological Health ◽  
Sampling Method ◽  
Psychological Problems ◽  
Spiritual Wellbeing ◽  
Pearson’S Correlation ◽  
Holistic Nursing ◽  
Correlation Test ◽  
Pearson's Correlation ◽  
Convenience Sampling ◽  
The Relationship

Aim: The aim of this study was to investigate the relationship between psychological problems and spiritual wellbeing in Iranian stoma patients. Methods: This descriptive-analytic study was conducted on 70 stoma patients who were enrolled through a convenience sampling method. Depression, anxiety and stress among patients were analysed using Depression, Anxiety and Stress Scale (DASS-21) questionnaire and their spiritual wellbeing was analysed using the Spiritual Wellbeing Scale (SWS). Pearson's correlation test was used to determine the relationship between depression, stress and anxiety with the total spiritual wellbeing and its dimensions. Results: The results of Pearson's correlation test showed that there was an inverse and significant correlation between stress (RR -0.728; P<0.001), anxiety (RR -0.721; P<0.001) and depression (RR -0.740; P<0.001) with the total score for spiritual wellbeing. Conclusion: These results demonstrated that there is a relationship between psychological problems and spiritual wellbeing in ostomates. That is, patients with higher spiritual wellbeing reported lower levels of psychological problems. The results of the present study can be used for holistic nursing care in these patients.

scholarly journals The relationship between quality of life in sarcopenia and skeletal muscle index in patients with advanced lung cancer

2021 ◽  
Vol 11 (11) ◽  
pp. 100-107
Author(s):  
V. Kechedzhyiev
Keyword(s):  
Quality Of Life ◽  
Lung Cancer ◽  
Skeletal Muscle ◽  
Correlation Analysis ◽  
Advanced Lung Cancer ◽  
Pearson’S Correlation ◽  
Skeletal Muscle Index ◽  
Pearson's Correlation ◽  
The Relationship

Introduction. Today the relevance of sarcopenia is increasing in various types of malignant neoplasms.This syndrome is most common in patients with advanced forms of cancer and can adversely affect survival, treatment outcomes, and functional status. The prevalence of sarcopenia in patients with lung cancer is higher than in other types of malignant tumors. To understand the relationship between sarcopenia and quality of life is especially important for patients with advanced cancer. Aim. To assess the relationship between skeletal muscle index (SMI) and quality of life in sarcopenia in patients with advanced lung cancer. Materials and methods. A prospective analysis was carried out of 28 patients with advanced lung cancer who have applied to the “ONCOLIFE” Medical Center since the beginning of 2021. All patients had sarcopenia on CT scan. Skeletal muscle cross-sectional area analyzed using software ImageJ (National Institutes of Health, Bethesda, MD, USA). To determine the quality of life in sarcopenia a questionnaire SarQoL was used. Pearson's correlation analysis was used to assess the correlation between quality of life and SMI. Results. Pearson's correlation analysis showed a statistically significant positive correlation between quality of life and SMI (r = 0,451, р = 0,016, N=28). Body mass index (BMI) positively correlated with quality of life (r = 0,398, р = 0,036, N=28), and age negatively correlated with SMI (r = -0,391, р = 0,040, N=28). There was no statistically significant correlation between indicators such as BMI and SMI, as well as age and quality of life. Conclusions. Quality of life in sarcopenia statistically significantly correlates with SMI in patients with metastatic lung cancer. Early diagnosis of sarcopenia is essential for timely prescription of treatment aimed at maintaining and better muscle mass, which can improve cancer patients quality of life.

scholarly journals Comparison of quantity and quality of muscle as clinical prognostic markers in patients undergoing carotid endarterectomy

2020 ◽  
Vol 93 (1111) ◽  
pp. 20200136
Author(s):  
Mohammed Abdul Waduud ◽  
Awais Ul-Hassan ◽  
Talha Naveed ◽  
Pratik Adusumilli ◽  
Thomas Alexander Slater ◽  
...  
Keyword(s):  
Carotid Endarterectomy ◽  
Cox Regression ◽  
Clinical Care ◽  
Muscle Quality ◽  
Regression Analyses ◽  
Muscle Area ◽  
Pearson’S Correlation ◽  
All Cause Mortality ◽  
Pearson's Correlation ◽  
The Relationship

Objective: The measurement of muscle area is routinely utilised in determining sarcopaenia in clinical research. However, this simple measure fails to factor in age-related morphometric changes in muscle quality such as myosteatosis. The aims of this study were to: firstly investigate the relationship between the masseter area (quantity) and density (quality), and secondly compare the prognostic clinical relevance of each parameter. Methods: Cross-sectional CT head scans were reviewed for patients undergoing carotid endarterectomy. The masseter was manually delineated and the total masseter area (TMA) and the total masseter density (TMD) calculated. Measurements of the TMA were standardised against the cranial circumference. Observer variability in measurements were assessed using Bland–Altman plots. The relationship between TMA and TMD were evaluated using Pearson’s correlation and linear regression analyses. The prognostic value of TMA and TMD were assessed using receiver operator curves and cox-regression analyses. Results: In total, 149 patients who had undergone routine CT scans prior to a carotid endarterectomy were included in this study. No significant observer variations were observed in measuring the TMA, TMD and cranium circumference. There was a significant positive correlation between standardised TMA and TMD (Pearson’s correlation 0.426, p < 0.001, adjusted R-squared 17.6%). The area under the curve for standardised TMA in predicting all-cause mortality at 30 days, 1 year and 4 years were higher when compared to TMD. Standardised TMA was only predictive of post-operative overall all-cause mortality (adjusted hazard ratio 0.38, 95% confidence interval 0.15–0.97, p = 0.043). Conclusion: We demonstrate a strong relationship between muscle size and density. However, the utilisation of muscle area is likely to be limited in routine clinical care. Advances in knowledge: Our study supports the utilisation of muscle area in clinical sarcopaenia research. We did not observe any additional prognostic advantage in quantifying muscle density.

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