scholarly journals PHYSICAL ACTIVITY AND TRACE ELEMENT METABOLISM

2020 ◽  
Vol 21 (2) ◽  
pp. 3-12
Author(s):  
A.A. Skalny ◽  
Keyword(s):  
Physical Activity ◽  
Trace Elements ◽  
Trace Element ◽  
The Body ◽  
Cobalt Chromium ◽  
Essential Trace Elements ◽  
Trace Element Metabolism ◽  
The Impact ◽  
The Relationship ◽  
Insight Into

Currently, there is no doubt about the prevailing influence of the level of physical activity of an individual on the functional state of the body. However, the available literature data on the impact of physical stress on the body's supply of trace elements and their distribution in tissues are largely contradictory. This review of available literature data provides an insight into the relationship between physical activity and microelement homeostasis. The influence of human physical activity on the exchange of toxic (lead, cadmium, Nickel, etc.) and essential trace elements, such as iron, selenium, copper, cobalt, chromium, and zinc is reviewed. Based on the analyzed works, it is concluded that in order to correct the metabolic and microelement status of a person during physical activity, the most reasonable and necessary is the modulation of homeostasis of zinc and selenium.

scholarly journals Toxic leadership: Effects on job satisfaction, commitment, turnover intention and organisational culture within the South African manufacturing industry

2020 ◽  
Vol 18 ◽  
Author(s):  
Amelda Paltu ◽  
Marissa Brouwers
Keyword(s):  
Job Satisfaction ◽  
South African ◽  
Turnover Intention ◽  
Organisational Culture ◽  
The Body ◽  
Toxic Leadership ◽  
Job Outcomes ◽  
The Impact ◽  
The Relationship ◽  
Insight Into

Orientation: The impact of toxic leadership on employees and organisations has only recently become the focus of certain research studies.Research purpose: The general objective of this research was to investigate the relationship between toxic leadership, job satisfaction, turnover intention and commitment. The aim further was to test whether organisation culture mediates the relationship between toxic leadership and certain job outcomes such as job satisfaction, turnover intention and commitment.Motivation for the study: Currently, no knowledge is available on the relationships between toxic leadership and job outcomes within the context of South African manufacturing organisations. Therefore, this study provides South African organisations and researchers with an insight into such a relationship and the mentioned mediation of organisational culture in the process.Research approach/design and method: A cross-sectional research design with a sample size of N = 600 manufacturing employees was used. Product–moment correlations, multiple regression and structural equation modelling were used.Main findings: The test results returned both direct and indirect effects for all the relationships, which indicated only partial mediation in all the tested relationships.Practical/managerial implications: The results provided organisations’ insight into the possible consequences of toxic leadership on employees and the organisations’ culture.Contribution/value-add: The improved understanding of toxic leadership and the relationship with certain job outcomes contributes to the body of knowledge on both the theory of toxic leadership and on employees’ experience of such leadership styles in the work environment.

scholarly journals THE RELATIONSHIP OF THE EXCHANGE OF ESSENTIAL TRACE ELEMENTS AND THE FUNCTIONAL STATE OF THE CARDIOVASCULAR SYSTEM IN INTERNATIONAL STUDENTS

2020 ◽  
Vol 21 (3) ◽  
pp. 33-42
Author(s):  
A.A. Kirichuk ◽  
Keyword(s):  
Trace Elements ◽  
International Students ◽  
Trace Element ◽  
Cardiovascular System ◽  
Functional State ◽  
Foreign Students ◽  
Stress Index ◽  
Zn Concentration ◽  
Essential Trace Elements ◽  
The Relationship

The aim of the study was to study the relationship between the level of essential trace elements and the functional state of the cardiovascular system (CVS) in freshmen from foreign countries compared with freshmen from Russia (control group). The CVS study was conducted by the AngioScan-01 hardware-software complex (AIC). The level of essential elements in the analyzed biosubstrates was determined by inductively coupled plasma mass spectrometry (ICP-MS). It was found that foreign students have significantly higher values of the stress index (IS) and vascular wall stiffness (SI) compared to freshmen from Russia. At the same time, the value of the reflection index (RI is a marker of peripheral vascular tone) and the integral indicator indicating aortic elasticity (dTpp) in foreign students were significantly lower than those of freshmen from Russia. Analysis of hair trace element content revealed significantly lower hair Co, Cr, Cu, Fe, I, Mg, Mn, and V levels in international students as compared to controls. Urinary trace element levels were more stable. Particularly, Co and Mn levels were found to be lower, whereas Cu and Zn concentration was higher than those in students from Russia. Correlation analysis revealed inverse association between stress index and hair Fe content. Mg and Mn levels in hair were also inversely associated with stiffness index. Urinary Cu, Se, and Zn concentration directly correlated with arterial stiffness, being inversely associated with dTpp values. Oppositely, urinary V levels were inversely and directly correlated with these parameters, respectively. Therefore, the results of analysis demonstrated the potential relationship between patterns of trace element status and cardiovascular reactivity in international students.

scholarly journals The Impact of Weather and Seasons on Falls and Physical Activity among Older Adults with Glaucoma: A Longitudinal Prospective Cohort Study

Sensors ◽  
2021 ◽  
Vol 21 (10) ◽  
pp. 3415
Author(s):  
Hursuong Vongsachang ◽  
Aleksandra Mihailovic ◽  
Jian-Yu E ◽  
David S. Friedman ◽  
Sheila K. West ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Fall Prevention ◽  
Regression Models ◽  
Activity Promotion ◽  
Injurious Fall ◽  
Multivariable Regression ◽  
Multivariable Regression Models ◽  
The Impact ◽  
The Relationship

Understanding periods of the year associated with higher risk for falling and less physical activity may guide fall prevention and activity promotion for older adults. We examined the relationship between weather and seasons on falls and physical activity in a three-year cohort of older adults with glaucoma. Participants recorded falls information via monthly calendars and participated in four one-week accelerometer trials (baseline and per study year). Across 240 participants, there were 406 falls recorded over 7569 person-months, of which 163 were injurious (40%). In separate multivariable regression models incorporating generalized estimating equations, temperature, precipitation, and seasons were not significantly associated with the odds of falling, average daily steps, or average daily active minutes. However, every 10 °C increase in average daily temperature was associated with 24% higher odds of a fall being injurious, as opposed to non-injurious (p = 0.04). The odds of an injurious fall occurring outdoors, as opposed to indoors, were greater with higher average temperatures (OR per 10 °C = 1.46, p = 0.03) and with the summer season (OR = 2.69 vs. winter, p = 0.03). Falls and physical activity should be understood as year-round issues for older adults, although the likelihood of injury and the location of fall-related injuries may change with warmer season and temperatures.

The impact of tinnitus characteristics and associated variables on tinnitus-related handicap

2015 ◽  
Vol 130 (1) ◽  
pp. 25-31 ◽  
Author(s):  
S Degeest ◽  
P Corthals ◽  
I Dhooge ◽  
H Keppler
Keyword(s):  
Additional Insight ◽  
Tinnitus Handicap Inventory ◽  
Hearing Status ◽  
Questionnaire Score ◽  
Relationship Of ◽  
The Impact ◽  
The Relationship ◽  
Sample Case ◽  
Insight Into ◽  
Associated Variables

AbstractObjective:This study aimed to determine the characteristics of tinnitus and tinnitus-related variables and explore their possible relationship with tinnitus-related handicap.Methods:Eighty-one patients with chronic tinnitus were included. The study protocol measured hearing status, tinnitus pitch, loudness, maskability and loudness discomfort levels. All patients filled in the Tinnitus Sample Case History Questionnaire, the Hyperacusis Questionnaire and the Tinnitus Handicap Inventory. The relationship of each variable with the Tinnitus Handicap Inventory score was evaluated by univariate and multivariate analyses.Results:Five univariables were associated with the Tinnitus Handicap Inventory score: loudness discomfort level, subjective tinnitus loudness, tinnitus awareness, noise intolerance and Hyperacusis Questionnaire score. Multiple regression analysis showed that the Hyperacusis Questionnaire score and tinnitus awareness were independently associated with the Tinnitus Handicap Inventory score.Conclusion:Hyperacusis and tinnitus awareness were independently associated with the Tinnitus Handicap Inventory score. Questionnaires on tinnitus and hyperacusis are especially suited to providing additional insight into tinnitus-related handicap and are therefore useful for evaluating tinnitus patients.

scholarly journals Analysis of Relationship between the Body Mass Composition and Physical Activity with Body Posture in Children

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Justyna Wyszyńska ◽  
Justyna Podgórska-Bednarz ◽  
Justyna Drzał-Grabiec ◽  
Maciej Rachwał ◽  
Joanna Baran ◽  
...  
Keyword(s):  
Physical Activity ◽  
Body Mass ◽  
Muscle Tissue ◽  
Physical Activity Level ◽  
The Body ◽  
Body Posture ◽  
Activity Level ◽  
Mass Composition ◽  
Body Mass Composition ◽  
The Relationship

Introduction. Excessive body mass in turn may contribute to the development of many health disorders including disorders of musculoskeletal system, which still develops intensively at that time.Aim. The aim of this study was to assess the relationship between children’s body mass composition and body posture. The relationship between physical activity level of children and the parameters characterizing their posture was also evaluated.Material and Methods. 120 school age children between 11 and 13 years were enrolled in the study, including 61 girls and 59 boys. Each study participant had the posture evaluated with the photogrammetric method using the projection moiré phenomenon. Moreover, body mass composition and the level of physical activity were evaluated.Results. Children with the lowest content of muscle tissue showed the highest difference in the height of the inferior angles of the scapulas in the coronal plane. Children with excessive body fat had less slope of the thoracic-lumbar spine, greater difference in the depth of the inferior angles of the scapula, and greater angle of the shoulder line. The individuals with higher level of physical activity have a smaller angle of body inclination.Conclusion. The content of muscle tissue, adipose tissue, and physical activity level determines the variability of the parameter characterizing the body posture.

scholarly journals Hyaluronan and the Fascial Frontier

2021 ◽  
Vol 22 (13) ◽  
pp. 6845
Author(s):  
Rebecca L. Pratt
Keyword(s):  
Nerve Fibers ◽  
The Body ◽  
Water Volume ◽  
Cell Behavior ◽  
Connective Tissues ◽  
Wide Range ◽  
The World ◽  
Extracellular Microenvironment ◽  
The Impact ◽  
The Relationship

The buzz about hyaluronan (HA) is real. Whether found in face cream to increase water volume loss and viscoelasticity or injected into the knee to restore the properties of synovial fluid, the impact of HA can be recognized in many disciplines from dermatology to orthopedics. HA is the most abundant polysaccharide of the extracellular matrix of connective tissues. HA can impact cell behavior in specific ways by binding cellular HA receptors, which can influence signals that facilitate cell survival, proliferation, adhesion, as well as migration. Characteristics of HA, such as its abundance in a variety of tissues and its responsiveness to chemical, mechanical and hormonal modifications, has made HA an attractive molecule for a wide range of applications. Despite being discovered over 80 years ago, its properties within the world of fascia have only recently received attention. Our fascial system penetrates and envelopes all organs, muscles, bones and nerve fibers, providing the body with a functional structure and an environment that enables all bodily systems to operate in an integrated manner. Recognized interactions between cells and their HA-rich extracellular microenvironment support the importance of studying the relationship between HA and the body’s fascial system. From fasciacytes to chronic pain, this review aims to highlight the connections between HA and fascial health.

Antecedents of horizontal logistics collaboration in agri-food supply chains

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Ismail Badraoui ◽  
Ivo van der Lans ◽  
Youssef Boulaksil ◽  
Jack G.A.J. van der Vorst
Keyword(s):  
Supply Chains ◽  
Food Supply ◽  
Structural Equation ◽  
The Body ◽  
Equation Modeling ◽  
Content Type ◽  
Operational Conditions ◽  
Food Supply Chains ◽  
The Impact ◽  
The Relationship

PurposeThis study investigates the impact of agri-food supply chains (AFSCs) characteristics on the antecedents of horizontal logistics collaboration (HLC). Specifically, the study compares the relationship between collaboration activities and outcomes for companies in and outside AFSCs.Design/methodology/approachFirst, a survey was used to collect data from different industries. Second, confirmatory factor analysis and structural equation modeling were applied to compare the measurement and structural models from different industry categories.FindingsThe results support the premise that collaboration improves trust and commitment in the relationship, which in turn enhance satisfaction. The results also show the existence of a minor influence of AFSCs characteristics on HLC antecedents, in the form of an indirect impact of dedicated investments on commitment.Practical implicationsThe factors having a significant influence on the collaboration outcomes and their respective effects are generally similar across food and nonfood supply chains, providing opportunities for interdisciplinary and collaboration experiences.Originality/valueThis research contributes to the body of knowledge on interfirm collaboration by considering the specificities of HLC. It also highlights the importance of conducting contingency research on collaborative experiences, as firms from different industry contexts operate under distinct operational conditions.

A Welcome Conversation: Toward a New Historiography of Intellectual Property

2018 ◽  
Vol 43 (03) ◽  
pp. 1113-1129
Author(s):  
Kali Murray
Keyword(s):  
Intellectual Property ◽  
Legal History ◽  
Social Practices ◽  
The Body ◽  
Property Law ◽  
Legal Concept ◽  
Narrative Structures ◽  
History Of ◽  
The Relationship ◽  
Insight Into

This essay considers what tools should be used to study the legal history of intellectual property. I identify three historiographical strategies: narration, contest, and formation. Narration identifies the diverse “narrative structures” that shape the field of intellectual property history. Contest highlights how the inherent instability of intellectual property as a legal concept prompts recurrent debates over its meaning. Formation recognizes how intellectual property historians can offer insight into broader legal history debates over how to consider the relationship between informal social practices and formalized legal mechanisms. I consider Kara W. Swanson's Banking on the Body: The Market in Blood, Milk and Sperm in Modern America (2014) in light of these historiographical strategies and conclude that Swanson's book guides us to a new conversation in the legal history of intellectual property law.

scholarly journals Children’s Weight Gain and Cardiovascular Fitness Loss over the Summer

2018 ◽  
Vol 15 (12) ◽  
pp. 2770 ◽  
Author(s):  
Timothy Brusseau ◽  
Ryan Burns
Keyword(s):  
Physical Activity ◽  
Physical Activity Intervention ◽  
Cardiovascular Fitness ◽  
The Body ◽  
School Year ◽  
School Based ◽  
Health Related ◽  
Physical Activity Programming ◽  
The Impact ◽  
Health Related Fitness

The purpose of this study was to examine the impact of summer breaks on the body composition and cardiovascular fitness of elementary school children who participated in a multi-year school-based physical activity intervention. Participants were 404 children who had their height and weight measured and completed the Progressive Aerobic Cardiovascular Endurance Run (PACER) during physical education classes at the beginning and end of the school year for three consecutive years. To examine the effects of time on health-related fitness data, general linear mixed effects models were employed. The results indicate that there was a trend toward an increase in body mass index (BMI) after the summer of 2015 (p = 0.958), and a significant increase in BMI after the summer of 2016 compared to time point 1 (p < 0.001). For PACER laps, there were trends toward decreases in PACER laps after the summers of 2015 (p = 0.515) and 2016 (p = 0.073). Summer breaks tended to attenuate the BMI and PACER lap improvements that were observed during the intervention. While school-based physical activity programming has had some successes in improving health-related fitness markers, the loss of these improvements over the summer is of concern to both practitioners and researchers. It is clear that additional efforts are needed to limit obesogenic behaviors during the summer months.

scholarly journals Use of essential trace elements enriched Artemia in the larval rearing of barramundi (Lates calcarifer)

2012 ◽  
pp. 11-16
Author(s):  
Milán Fehér ◽  
Péter Bársony ◽  
Edina Baranyai ◽  
József Posta ◽  
László Stündl
Keyword(s):  
Trace Element ◽  
Trace Element Content ◽  
Manganese Concentration ◽  
Larval Rearing ◽  
Lates Calcarifer ◽  
Live Feed ◽  
Essential Trace Elements ◽  
Significant Difference ◽  
Survival And Growth ◽  
The Impact

Artemia is a vital nutriment in the rearing of barramundi (Lates carcarifer), however it’s mineral trace element content does not cover the requirements of the larvae. In our experiment the assumption was wether the cobalt, zinc and manganese concentration of Artemia could be increased during a 24 hours of enrichment period, as well as we wanted to investigate the resulted interactions between the elements. For this purpose 50, 100 and 1000 mg l-1 cobalt-chloride treatements (Co50, Co100, Co1000) were applied while in the case of 50 and 100 mg l-1 treatments the enrichment was also complemented with zink-sulphate and manganese-chloride in the same concentrations. According to the results the zooplankton were able to accumulate cobalt in higher amount, and yet zinc and manganese had no significant effect on each other, a strong synergistic effect occurred between cobalt and manganese. After the enrichment period the impact of essential trace element supplemented live feed on the survival and growth of barramundi larvae was also studied. The experiment was carried out by using 15 days-old larvae applying a total of 9 treatments for two weeks (Control, Co50, Co100, Mn50, Mn100, CoZn50, CoZn100, CoMn50, CoMn100), in duplicates. Considering the per cent of survivals, no significant difference was observed between the treatements (P>0.05). In the case of CoMn50 and CoMn100, the loss statistically increased (P<0.05) compared to the Control (80.5±4.95%) group. Our results show, that the Mn100 and CoMn100 treatements resulted in  ignificantly higher (P<0.05 ) in divid ual bod y w eight s, how ever taki ng the survival also into consideration the Mn100 treatements proved to be the mosteffective.

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