scholarly journals Factor structure of the complex preparedness of young football players 12-13 years old

2021 ◽  
Vol 7 (2) ◽  
pp. 45-56
Author(s):  
M. Cieślicka ◽  
R. Muszkieta ◽  
M. Bejtka ◽  
I. Gryn
Keyword(s):  
Nervous System ◽  
Factor Structure ◽  
Principal Component ◽  
Technical Training ◽  
Football Players ◽  
Attention Switching ◽  
Total Dispersion ◽  
Sports Club ◽  
Psychophysiological Functions ◽  
Complex Training

Purpose: to determine the factor structure of the complex readiness of young football players 12-13 years old based on the level of development of physical qualities, mastery of technical elements and indicators of psychophysiological functions. Material and methods. Participants: 48 football players 12-13 years old participated in the study of the sports club “Kolos”, Kharkiv, Ukraine. All children started to play football in the age of 10-11, that is, the duration of football classes was 1-2 years. Research methods. The following data were determined: indicators of the level of physical preparedness, indicators of the level of technical preparedness, indicators of the psychophysiological functional state. The structure of complex preparedness was determined using factor analysis (SPSS-17, Dimension Redaction - Factor; Extraction Method: Principal Component Analysis; Varimax with Kaiser Normalization). Results. In the structure of complex training of young football players aged 12-13, 4 main factors were identified: 1 - "Speed-power and technical training" (30.36% of the total dispersion); 2 - "Attention switching" (20.7% of the total variance); 3 - "Sensitivity of the nervous system" (15.4% of the total dispersion); 4 - "Mobility of the nervous system" (13.9% of the total dispersion). Conclusions.  Speed and strength, technical training in combination with switching of attention and mobility of the nervous system are dominated in the structure of complex training of young football players aged 12-13. The obtained data create conditions for recommendations in the training process of young football players aged 12-13 increase the number of exercises that require the development of speed and strength, technical training in combination with exercises to switch attention.

scholarly journals Unison of movements in football players with different nervous systems

2019 ◽  
Vol 65 (2) ◽  
pp. 211-215
Author(s):  
Georgy Polevoy
Keyword(s):  
Nervous System ◽  
Technical Training ◽  
The Other ◽  
Control Group ◽  
Special Method ◽  
Football Players ◽  
Young Athletes ◽  
System Properties ◽  
Experimental Group

SUMMARY In this study, we investigated the effect of typological features of nervous system properties on the ability to unite the movements of young football players. A total of 36 young football players aged 11-12 years participated in this experiment. Of them, 18 were engaged in an experimental differentiated method, which is based on using the same exercise and methods for developing the ability to unite movements but with different load components; for players with a strong nervous system (9 children), the load was intensive, but for players with a weak nervous system (9 children) - the load was volumetric. The other 18 athletes made up the control group. After 8 months of the experiment, we observed positive changes in terms of the ability to unite movements in young football players. In the control group, these changes were not significant (P>0.05). In the experimental group studied according to a special method, the indicators changed considerably. The performance of football players with a strong nervous system improved from 6.4±0.2 s to 5.7±0.1 s (P<0.05), and for football players with a weak nervous system from 6.2±0.2 s to 5.6±0.2 s (P<0.05). The study proved the effectiveness of the use of the typological properties of the nervous system as a differentiated method for developing the ability to unite movements in young football players. This approach allows for the improvement of the quality of technical training of young athletes.

The factor structure of the GHQ-60 in a community sample

1988 ◽  
Vol 18 (1) ◽  
pp. 211-218 ◽  
Author(s):  
J. L. Vazquez-Barquero ◽  
P. Williams ◽  
J. F. Diez-Manrique ◽  
J. Lequerica ◽  
A. Arenal
Keyword(s):  
Factor Structure ◽  
Principal Components ◽  
Good Description ◽  
Social Performance ◽  
Community Sample ◽  
General Health Questionnaire ◽  
Principal Component ◽  
Northern Spain ◽  
Relative Operating Characteristic ◽  
Component Structure

SynopsisThe factor structure of the 60-item version of the General Health Questionnaire was explored, using data collected in a community study in a rural area of northern Spain. Six principal components, similar to those previously reported with this instrument, were found to provide a good description of the data structure.The 30-item and 12-item versions of the GHQ were then disembedded from the parent version, and further principal components analyses carried out. Again, the results were similar to previous studies: in each of the three versions analysed here, the two most important components represented a disturbance of mood (‘general dysphoria’)– including aspects of anxiety, depression and irritability– and a disturbance of social performance (‘social function/optimism’).The principal component structure of the GHQ-60 was then utilized to calculate factor scores, and these were compared with PSE ratings using Relative Operating Characteristic (ROC) analysis. While four of the six factors discriminated well (area under the ROC curve 0–75 or more) between PSE ‘cases’ and ‘non-cases’, only one, depressive thoughts, was a good discriminator between depressed and non-depressed PSE ‘cases’.

Reliability, Validity, and Factor Structure of the Geriatric Depression Scale in Turkish Elderly: Are There Different Factor Structures for Different Cultures?

2000 ◽  
Vol 12 (2) ◽  
pp. 163-172 ◽  
Author(s):  
Turan Ertan ◽  
Engin Eker
Keyword(s):  
Factor Structure ◽  
Internal Consistency ◽  
Discriminant Validity ◽  
Geriatric Depression Scale ◽  
Depression Scale ◽  
Principal Component ◽  
Community Dwelling ◽  
Geriatric Depression ◽  
Reasonable Time ◽  
Positive Form

The purpose of this study was to examine the Geriatric Depression Scale (GDS) translated into Turkish for its reliability, discriminant validity, and factor structure in a sample of 276 community-dwelling elderly and 30 patients with major depression. One item (Item 5) was discovered to have conceptual difficulty for Turkish elderly and was transformed to negative form. Item 2 was transformed to positive form to keep the number of positive and negative items equal to that in the original GDS. A reasonable time stability with 1-week interval (r:.74) and a high level of internal consistency (α = .91) were observed. Student's t test resulted in a significant discriminant validity for the scale total score. Factor study with principal component analysis and varimax rotation gave rise to a structure with seven factors. Results of the same analysis with two factors were found to be easier to interpret. The first factor was composed of 19 items reflecting “depressive affect and thought content.” The other 11 items representing “decrease in motivation and cognitive functions” loaded in the second factor. In conclusion, the Turkish GDS was found to have reasonable time reliability, high internal consistency, and discriminant validity for Turkish elderly. Its two-factor structure can be used as an informative instrument for epidemiological studies, reflecting two main dimensions of depression in the elderly.

The psychology quadrant: an outcome measure based on the START risk assessment

2017 ◽  
Vol 19 (1) ◽  
pp. 14-22
Author(s):  
Matthew John Gill ◽  
Samantha Brookes
Keyword(s):  
Risk Assessment ◽  
Factor Structure ◽  
Psychiatric Rehabilitation ◽  
Principal Component ◽  
Future Research ◽  
Psychological Outcome ◽  
Content Type ◽  
Health Rehabilitation ◽  
Mental Health Rehabilitation ◽  
Outcome Tool

Purpose The purpose of this paper is to develop a psychological outcome tool which reflects the relationship between clusters of items on the Short Term Assessment of Risk and Treatability (START) risk assessment and different categories of psychological progress in male inpatient psychiatric services. Design/methodology/approach A principal component analysis (PCA) was conducted on data from 135 male psychiatric rehabilitation patients’ START risk assessments. Findings PCA identified four strength psychology quadrants which were explained by a five-factor structure and four vulnerability quadrants which were explained by a four-factor structure. The development of the psychology quadrant, its usefulness in establishing a treatment pathway and areas of future research are also discussed. Originality/value Developing accessible, transparent outcome measures using evidence-based practice is highly relevant within the field of mental health rehabilitation.

scholarly journals Changes in the functional state of young players with different strength of the nervous system

2017 ◽  
Vol 6 (1) ◽  
pp. 1-7
Author(s):  
Georgiy Polevoy
Keyword(s):  
Nervous System ◽  
Theoretical Analysis ◽  
Functional Status ◽  
Functional State ◽  
Mathematical Statistics ◽  
Football Players ◽  
Training Process ◽  
Differential Development

The purpose of the article is to get and summarize the data obtained in the new study, namely the change in the indicators of the functional state of 11-12 year-old players having different typological peculiarities of the nervous system. The leading methods to research this problem are ascertaining and formative pedagogical experiment, theoretical analysis and summarizing of methodological literature and methods of mathematical statistics. The result is a change in the indicators of the functional status of 11-12 year-old children who play football, after using the methodology of the differential development of coordination abilities of players 11-12 years with different typology of the nervous system. Conclusion - the article can be useful for improving the outdated forms of coach’s training and instructors in football and other sports, and also can be used in the training process of football players with different skills. The urgency of the theme is caused by the search of modernization of training process in football reserve, which would increase the functional status of the children and improve their results in football.

scholarly journals Plasma Cell-Free DNA Methylomics of Bipolar Disorder With and Without Rapid Cycling

2021 ◽  
Vol 15 ◽  
Author(s):  
Ada Man-Choi Ho ◽  
Stacey J. Winham ◽  
Bryan M. McCauley ◽  
Marija Kundakovic ◽  
Keith D. Robertson ◽  
...  
Keyword(s):  
Bipolar Disorder ◽  
Nervous System ◽  
Principal Component ◽  
Gene Set Enrichment Analysis ◽  
Rapid Decline ◽  
Rapid Cycling ◽  
Cell Free Dna ◽  
Cpg Sites ◽  
Free Dna ◽  
Gene Sets

Rapid cycling (RC) burdens bipolar disorder (BD) patients further by causing more severe disability and increased suicidality. Because diagnosing RC can be challenging, RC patients are at risk of rapid decline due to delayed suitable treatment. Here, we aimed to identify the differences in the circulating cell-free DNA (cfDNA) methylome between BD patients with and without RC. The cfDNA methylome could potentially be developed as a diagnostic test for BD RC. We extracted cfDNA from plasma samples of BD1 patients (46 RC and 47 non-RC). cfDNA methylation levels were measured by 850K Infinium MethylationEPIC array. Principal component analysis (PCA) was conducted to assess global differences in methylome. cfDNA methylation levels were compared between RC groups using a linear model adjusted for age and sex. PCA suggested differences in methylation profiles between RC groups (p = 0.039) although no significant differentially methylated probes (DMPs; q &gt; 0.15) were found. The top four CpG sites which differed between groups at p &lt; 1E-05 were located in CGGPB1, PEX10, NR0B2, and TP53I11. Gene set enrichment analysis (GSEA) on top DMPs (p &lt; 0.05) showed significant enrichment of gene sets related to nervous system tissues, such as neurons, synapse, and glutamate neurotransmission. Other top notable gene sets were related to parathyroid regulation and calcium signaling. To conclude, our study demonstrated the feasibility of utilizing a microarray method to identify circulating cfDNA methylation sites associated with BD RC and found the top differentially methylated CpG sites were mostly related to the nervous system and the parathyroid.

scholarly journals Psychometric properties of the HIV/AIDS Knowledge Scale for Spanish adolescents (HIV-KS) / Propiedades psicométricas de la Escala de Conocimientos sobre VIH/SIDA para adolescentes (VIH-KS)

2009 ◽  
Vol 9 (2) ◽  
Author(s):  
José P. Espada ◽  
Tania B. Huedo-Medina ◽  
Mireia Orgilés ◽  
Roberto Secades ◽  
Rafael Ballester ◽  
...  
Keyword(s):  
Factor Structure ◽  
Discriminant Validity ◽  
Reliability And Validity ◽  
Principal Component ◽  
Self Report ◽  
Internal Reliability ◽  
Gender And Age ◽  
Aids Knowledge ◽  
Knowledge Scale ◽  
Hiv Aids

El objetivo de este trabajo consistió en desarrollar y analizar las propiedades psicométricas de una escala multidimensional para evaluar los conocimientos relacionados con el VIH/SIDA en adolescentes (Escala de conocimientos sobre VIH/SIDA, HIV-KS). Tras un estudio piloto se administró un cuestionario de 48 ítems a una muestra de 14 centros escolares de 5 provincias españolas. Se puso a prueba la estructura teórica del cuestionario mediante un análisis de componentes principales al que se le aplicó un análisis confirmatorio. Se analizó la validez convergente y discriminante y la fiabilidad de la escala y, finalmente, se procedió a comprobar su invarianza factorial en función del género y la edad con una muestra de 1216 participantes. La versión final de HIV-KS estuvo compuesta por 10 ítems distribuidos en 3 factores principales. Los factores incluidos fueron (1) Transmisión oral del VIH, (2) Efectos del VIH, y (3) Otras vías de transmisión del VIH. La escala HIV-KS muestra invarianza en función del género y la edad y buena consistencia interna. HIV-KS es una escala capaz de evaluar de forma rápida y eficaz el grado de conocimientos sobre VIH/SIDA en población adolescente.  Absctract This paper aims to describe the development process, the factor structure, the reliability and validity of a multidimensional scale to measure HIV/AIDS-related knowledge for adolescents (HIV/AIDS Knowledge Scale, HIV-KS). After a pilot study of the items, a questionnaire of 28 items was administered to a sample from 14 different schools in 5 counties in Spain. Firstly, Principal-component analysis was used: first, to test a theory-driven structure and second, to develop an empirically derived factor structure for HIV-KS, which was tested with a confirmatory factor analysis. Secondly, reliability and convergent and discriminant validity were examined and finally, the factorial invariance was analyzed according to gender and age with a sample of 1,216 Spanish adolescents.The final version of the HIV-KS consists of 10 items distributed across three major factors. The factors included are: (1) HIV oral transmission, (2) HIV effects, and (3) other HIV transmission methods. The HIV-KS is invariant across gender and age and shows good validity and internal reliability. HIV-KS is a capable and parsimonious self-report scale for assessing main aspects of HIV/AIDS-related knowledge for adolescents.

Development and testing of three unique scales measuring the brand image of nursing

2018 ◽  
Vol 12 (1) ◽  
pp. 2-14 ◽  
Author(s):  
Judi Allyn Godsey ◽  
Tom Hayes ◽  
Clinton Schertzer ◽  
Robert Kallmeyer
Keyword(s):  
Health Care ◽  
Factor Structure ◽  
Internal Consistency ◽  
Health Care Access ◽  
Brand Image ◽  
Principal Component ◽  
Internal Consistency Reliability ◽  
Content Type ◽  
Brand Position ◽  
The Impact

Purpose Nurses have been called to be leaders in the transformation of health care and to help improve health-care access for the nation’s most vulnerable populations. However, to lead health-care transformation, the profession of nurses must first see themselves as leaders. Unfortunately, nursing has been described as lacking cohesiveness and failing to communicate a consistent brand image. No empirically tested quantitative tools exist to measure the brand identity of nursing, making it difficult to assess where the profession stands in regard to the mantel of leadership. The purpose of this study was to develop empirically sound instruments which could measure nurses’ perceptions of their professional brand image. A total of three scales were developed and then tested: The Nursing Brand Image Scale, Nursing’s Current Brand Position Scale and Nursing’s Desired Brand Position Scale. Design/methodology/approach The factor structure and internal consistency reliability of each scale were examined following survey administration to a national sample of registered nurses. Principal component analyses were used to explore the factor structure of each scale. Item reduction was achieved through examination of the loading of items across the factors and the impact of the item on internal consistency reliability. Findings Respondents to the survey were nursing alumni who received a baccalaureate or master’s degree in nursing at a private, mid-western university, and nursing faculty affiliated with a private, collegiate network (n = 286). For all scales, principal component analysis showed no inter-item correlations >0.9 or <0.1. The Kaiser–Meyer–Olkin measure for sampling adequacy was high and Bartlett’s test of sphericity was significant (p < 0001). The internal consistency reliability of each of the three scales was good to excellent. Current brand position mean scores were highest for the factor “caring advocates for patients/public”, and lowest on “influential leaders”. The most desired brand position mean scores were highest and rated similarly for factors “influential leaders” and “patient-centered caregivers”. Originality/value This study provides strong preliminary evidence for the factor structure and internal consistency reliability for each of the three scales and represents an important first step toward quantitatively measuring the brand image of nursing. However, results suggest there is work to be done if nursing is to formulate and adopt a brand image that consistently reinforces their role as leaders. Further testing of the scales with other nursing populations, the general public and with larger sample sizes is recommended.

Combat Deployment Experiences and Soldier Mental Health: Examining the Factor Structure of a Combat Experiences Scale

2021 ◽  
Author(s):  
Haley Sherman ◽  
Nicky Frye-Cox ◽  
Mallory Lucier-Greer
Keyword(s):  
Mental Health ◽  
Principal Component Analysis ◽  
Depressive Symptoms ◽  
Health Outcomes ◽  
Factor Structure ◽  
Principal Component ◽  
Mental Health Outcomes ◽  
Mental Health Symptoms ◽  
Coping With Stress ◽  
Health Symptoms

ABSTRACT Introduction Researchers and practitioners are invested in understanding how deployment experiences impact the nearly 193,000 U.S. service members who deploy in a given year. Yet, there remains a need to adequately identify salient deployment experiences through survey measurement tools and understand how differential experiences are uniquely related to mental health outcomes. Therefore, this study examined the factor structure of an established combat experiences measure from the Army Study to Assess Risk and Resilience in Service members (Army STARRS) dataset to identify underlying survey constructs that reflect nuanced deployment experiences. Then, we examined the association between diverse combat experiences and current mental health symptoms (i.e., anxiety and depressive symptoms) and the mediating role of coping. Materials and Methods Data were drawn from the Army STARRS data (N = 14,860 soldiers), specifically the All Army Study component. A principal component analysis (PCA) was conducted to examine the dimensionality of the combat experiences scale, and then a path model was conducted to examine the relationships between combat experiences, coping with stress following a deployment, and mental health symptoms while controlling for relevant individual and interpersonal factors. Results Results from the principal component analysis suggested that the Army STARRS combat experiences scale encompasses two components, specifically: “Expected combat experiences” and “Responsible for non-enemy deaths.” Both “Expected combat experiences” and “Responsible for non-enemy deaths” were associated with higher levels of anxiety and depressive symptoms, respectively, and “Responsible for non-enemy deaths” was also indirectly linked to these mental health outcomes through coping with stress after deployment. Conclusions These findings provide insight into the dimensionality of combat experiences and offer practitioners a more nuanced understanding of how to process unique combat experiences that differentially relate to mental health symptoms.

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