scholarly journals Assessment of caffeine intake with food by Polish females and males

2021 ◽  
pp. 273-280
Author(s):  
Ewa Malczyk ◽  
Joanna Wyka ◽  
Agata Malczyk ◽  
Katarzyna Larma
Keyword(s):  
Physical Activity ◽  
High Probability ◽  
Personal Data ◽  
Portion Size ◽  
Caffeine Intake ◽  
Psychoactive Substance ◽  
Safety Level ◽  
The World ◽  
Safe Dose

Background. Caffeine is the most widespread psychoactive substance in the world. With long-term consumption of caffeinated beverages, there is a high probability of overtaking on caffeine. Objective. The aim of the study was to estimate the consumption of caffeine in the daily caffeine intake of Polish consumers, determine the caffeinated products in the intake of this substance. Materials and methods. The survey was completed by 433 respondents living in Poland. The research tool was the electronic questionnaire, which consisted of: a) questions about personal data and measurement anthropometric and the level of physical activity and smoking; b) questions regarding the portion size and frequency of consumption of coffee, tea, cocoa, chocolate, energy drinks and colacarbonated beverages. Results. The main sources of caffeine in the respondents' diet include: coffee (Me 43.64 mg/d) and tea (Me 37.60 mg/d). Approximately 20% of respondents exceeded the threshold of daily caffeine intake (safety level for children and adolescents up to 3 mg/kg b.w, for adults up to 5.7 mg/kg b.w), considered safe. Conclusions. Respondents who have crossed the safe dose of caffeine intake, should limit the consumption of products being its main source (coffee).

scholarly journals Review Effect of Caffeine Overdose

2021 ◽  
Vol 11 (2) ◽  
Author(s):  
Zaheer Ahmed Chandio ◽  
Aaisha Sidiqua ◽  
Mazhar Iqbal Khaskheli ◽  
Amrat Waghani ◽  
Wazir Ali Metlo
Keyword(s):  
Nervous System ◽  
Physical Dependence ◽  
Caffeine Intake ◽  
Caffeine Withdrawal ◽  
The World ◽  
The Central Nervous System ◽  
The Impact ◽  
Caffeine Overdose ◽  
Methyl Xanthine

Background: Caffeine is from methyl xanthine class which mainly stimulates the central nervous system. Caffeine is one of the most widely used psychoactive drugs in the world. It is commonly found in beverages, chocolates, cocoa containing products and in medications. Caffeine is recognized as legal and its consumption is unregulated all over of the world. Objectives: The objective of this study is to summarize the impact of caffeine on behavioral and health alterations, in both controlled and overdose conditions. Moreover, the specifics of caffeine withdrawal and a number of guidelines on how to handle reducing or quitting caffeine intake altogether is also highlighted. Methodology: To compose this review, more than seventy research and review articles were overviewed that were published over a period of last twenty years, using Google Scholar search engines. Results: Caffeine regular use causes physical dependence which may become the caffeine withdrawal sign that can consequently harm normal working. The most important function of caffeine is that it can reversibly blocks the adenosine performance on its receptor and as a result which prevent the beginning of drowsiness encouraged by adenosine. Caffeine also stimulates certain portions of the autonomic nervous system symptom including fatigue, drowsiness, depressed mood, headache, difficulty concentrating, decreased energy, decreased contentedness, decreased alertness, irritability and unclear headed. Conclusion: It is concluded that utilization of caffeine in a prescribed dose can have good impact on health and may decrease addictive symptoms. Additionally, reducing caffeine dosage over a six week period guides to successful, long-term caffeine cessation with very few side effects.

scholarly journals Inconsistency in the Ergogenic Effect of Caffeine in Athletes Who Regularly Consume Caffeine: Is It Due to the Disparity in the Criteria That Defines Habitual Caffeine Intake?

Nutrients ◽  
2020 ◽  
Vol 12 (4) ◽  
pp. 1087 ◽  
Author(s):  
Aleksandra Filip ◽  
Michal Wilk ◽  
Michal Krzysztofik ◽  
Juan Del Coso
Keyword(s):  
Ergogenic Effect ◽  
Caffeine Intake ◽  
Psychoactive Substance ◽  
Mental Performance ◽  
Caffeine Ingestion ◽  
The World

Caffeine is the most popular psychoactive substance in the world, and data suggests that it is widely used by athletes before competition to enhance physical and mental performance. The high number of athletes that regularly use caffeine suggests the need to investigate the effect of acute caffeine ingestion in athletes habituated to caffeine. However, most of the studies supporting this claim have used samples of athletes who do not consume caffeine on a regular basis, and with caffeine intake withdrawal prior to the experiments. A search through 19 databases conducted on habitual caffeine users was performed. The results of the studies regarding the ergogenic effect of caffeine in naïve vs. habitual caffeine consumers are contradictory. The diversity of results are likely associated with the use of different thresholds to categorize individuals as naïve or high caffeine consumers. There are no valid and standardized methods to accurately estimate the amount of caffeine ingested per day in athletes. We proposed a classification of athletes that habitually consume caffeine by using dietary questionnaires, and ultimately, to reduce the likelihood of discrepancies caused by the improper qualification of daily caffeine intake in studies directed at the assessment of acute caffeine intake in habitual caffeine consumers.

scholarly journals Caffeine Intake During Pregnancy and Neonatal Anthropometric Parameters

Nutrients ◽  
2019 ◽  
Vol 11 (4) ◽  
pp. 806 ◽  
Author(s):  
Regina Wierzejska ◽  
Mirosław Jarosz ◽  
Barbara Wojda
Keyword(s):  
Regression Analysis ◽  
Pregnant Women ◽  
Fetal Growth ◽  
Caffeine Intake ◽  
Psychoactive Substance ◽  
Anthropometric Parameters ◽  
Study Population ◽  
Medical University ◽  
The Relationship ◽  
Safe Dose

Caffeine is a psychoactive substance that may affect the normal course of pregnancy, therefore its intake during that time should not exceed 200 mg/day. The aim of this study was to evaluate caffeine intake among pregnant women from the Warsaw region. The study was conducted among 100 pregnant women who delivered at the Department of Obstetrics, Gynecology and Oncology, Medical University of Warsaw. Caffeine intake from coffee, tea, and energy drinks was measured using a questionnaire. Direct interviewing was used, with all interviews conducted by the same dietitian. Multiple regression analysis was used to investigate the relationship between caffeine intake and anthropometric measurements of the newborns. Mean caffeine intake among pregnant women was 68 ± 51 mg/day. Only 2% of the respondents exceeded the safe dose of 200 mg. Tea (mostly black) was the source of 63% of all caffeine. No relationships were found between caffeine intake and neonatal weight, length, or head and chest circumference (p > 0.05). Caffeine intake in our study population was relatively low and did not negatively affect fetal growth.

scholarly journals Olfactory ensheathing cell transplantation improving cerebral infarction sequela: a case report and literature review

2019 ◽  
Vol 7 (2) ◽  
pp. 82-88
Author(s):  
Xiaoling Guo ◽  
Xin Wang ◽  
Yan Li ◽  
Bo Zhou ◽  
Weidong Chen ◽  
...  
Keyword(s):  
Physical Activity ◽  
Case Report ◽  
Literature Review ◽  
Cerebral Infarction ◽  
Cause Of Death ◽  
Olfactory Ensheathing Cells ◽  
Olfactory Ensheathing Cell ◽  
The World

Stroke is the second leading cause of death and the main cause of long-term disability in the world. Therefore, treatment of the sequelae of stroke is one of the most important challenges in clinical neurotherapy. A 63-year-old Chinese woman with inarticulateness and right limb physical activity disorder for more than 4 months received olfactory ensheathing cells (OECs)-based neurorestorative therapy during the stay in hospital. Her neurological functions improved during 1-year follow-up. This case report showed that OECs therapy could be a treatment option for cerebral infarction sequela.

scholarly journals Physical Activity and Sports Practice in Children and Adolescents at the Time of the COVID-19 Pandemic: Hypothetical Future Scenarios and Preventive Practical Applications

2021 ◽  
Vol 13 (24) ◽  
pp. 13787
Author(s):  
Giuseppe Battaglia ◽  
Antonio Palma
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Direct Consequence ◽  
Sports Facilities ◽  
Future Scenarios ◽  
Short Term ◽  
Sports Activity ◽  
Practical Applications ◽  
The World

As a logical and direct consequence of the closure of schools and sports facilities, an expected reduction in the practice of physical activity (PA) and sports has been detected in both children and adolescents all over the world. Hence, we analysed the short-term and long-term consequences of the lack/low level of PA and sports activity in this population, which we referred to as primary and secondary risks, respectively, the latter of which have to be considered in hypothetical future scenarios.

Barriers to Physical Activity in Adolescents

2015 ◽  
Vol 23 (2) ◽  
pp. 47-59 ◽  
Author(s):  
Nadine Langguth ◽  
Tanja Könen ◽  
Simone Matulis ◽  
Regina Steil ◽  
Caterina Gawrilow ◽  
...  
Keyword(s):  
Physical Activity ◽  
Leisure Activities ◽  
Outcome Expectations ◽  
Multidimensional Approach ◽  
Factor Analyses ◽  
Physical And Mental Health ◽  
Tailored Interventions ◽  
Long Term Consequences ◽  
Age Range

During adolescence, physical activity (PA) decreases with potentially serious, long-term consequences for physical and mental health. Although barriers have been identified as an important PA correlate in adults, research on adolescents’ PA barriers is lacking. Thus reliable, valid scales to measure adolescents’ PA barriers are needed. We present two studies describing a broad range of PA barriers relevant to adolescents with a multidimensional approach. In Study 1, 124 adolescents (age range = 12 – 24 years) reported their most important PA barriers. Two independent coders categorized those barriers. The most frequent PA barriers were incorporated in a multidimensional questionnaire. In Study 2, 598 adolescents (age range = 13 – 21 years) completed this questionnaire and reported their current PA, intention, self-efficacy, and negative outcome expectations. Seven PA barrier dimensions (leisure activities, lack of motivation, screen-based sedentary behavior, depressed mood, physical health, school workload, and preconditions) were confirmed in factor analyses. A multidimensional approach to measuring PA barriers in adolescents is reliable and valid. The current studies provide the basis for developing individually tailored interventions to increase PA in adolescents.

Thoughts on the Long-Term Strategy, Science and Democracy

2006 ◽  
pp. 4-19 ◽  
Author(s):  
L. Abalkin
Keyword(s):  
Strategy Development ◽  
Russian Science ◽  
Global Trends ◽  
The World ◽  
World Development ◽  
Crucial Condition

The article covers unified issues of the long-term strategy development, the role of science as well as democracy development in present-day Russia. The problems of budget proficit, the Stabilization Fund issues, implementation of the adopted national projects, an increasing role of regions in strengthening the integrity and prosperity of the country are analyzed. The author reveals that the protection of businessmen and citizens from the all-embracing power of bureaucrats is the crucial condition of democratization of the society. Global trends of the world development and expert functions of the Russian science are presented as well.

Coal's Persistence in the Capitalist World-Economy

2020 ◽  
Vol 6 (2) ◽  
pp. 194-221 ◽  
Author(s):  
Paul K. Gellert ◽  
Paul S. Ciccantell
Keyword(s):  
World Economy ◽  
Industrial Revolution ◽  
Energy Transition ◽  
Ecological Modernization ◽  
World Systems ◽  
Coal Consumption ◽  
The World ◽  
Capitalist World Economy ◽  
Capitalist World

Predominant analyses of energy offer insufficient theoretical and political-economic insight into the persistence of coal and other fossil fuels. The dominant narrative of coal powering the Industrial Revolution, and Great Britain's world dominance in the nineteenth century giving way to a U.S.- and oil-dominated twentieth century, is marred by teleological assumptions. The key assumption that a complete energy “transition” will occur leads some to conceive of a renewable-energy-dominated twenty-first century led by China. After critiquing the teleological assumptions of modernization, ecological modernization, energetics, and even world-systems analysis of energy “transition,” this paper offers a world-systems perspective on the “raw” materialism of coal. Examining the material characteristics of coal and the unequal structure of the world-economy, the paper uses long-term data from governmental and private sources to reveal the lack of transition as new sources of energy are added. The increases in coal consumption in China and India as they have ascended in the capitalist world-economy have more than offset the leveling-off and decline in some core nations. A true global peak and decline (let alone full substitution) in energy generally and coal specifically has never happened. The future need not repeat the past, but technical, policy, and movement approaches will not get far without addressing the structural imperatives of capitalist growth and the uneven power structures and processes of long-term change of the world-system.

Covid-19 and Mining industry

2020 ◽  
pp. 10-18 ◽  
Author(s):  
V.B. Kondratiev
Keyword(s):  
Mining Industry ◽  
Commodity Markets ◽  
Current Crisis ◽  
Mining Companies ◽  
The World ◽  
Commodity Demand ◽  
Long Term Impact

The COVID-19 pandemic has affected the commodity markets and mining industry around the world in different ways. Mining company’s operations have been hit by coronavirus outbreaks and government-mandated production stops. Demand for many commodities remains low. This paper examines the potential long-term impact of the COVID-19 pandemic on future commodity demand, mining prospects, as well as tactical and strategic steps by mining companies to overcome the current crisis quickly and effectively.

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