scholarly journals A Systematic Review of the Effects of Football Playing on Changes in Serum Brain-Derived Neurotrophic Factor Level

2021 ◽  
Vol 11 (24) ◽  
pp. 11828
Author(s):  
Randall Gutiérrez-Vargas ◽  
Alexis Ugalde-Ramírez ◽  
Markel Rico-González ◽  
José Pino-Ortega ◽  
Juan González-Hernández ◽  
...  
Keyword(s):  
Systematic Review ◽  
Acute Exercise ◽  
Preliminary Evidence ◽  
Football Players ◽  
Bdnf Level ◽  
Exercise Effect ◽  
High Intensity Interval ◽  
Relationship Of ◽  
The Relationship ◽  
Serum Bdnf

Background: Consistent evidence suggests that exercise improves cognition and decision making, with preliminary evidence suggesting that brain-derived neurotrophic factors (BDNFs) may mediate these effects on high-intensity interval activities, such as in football playing. We conducted a systematic review of studies on football players or football task interventions that evaluated the causality of exercise or its relationship with changes in the basal BDNF level. Methods: The search was conducted in PubMed, SPORTDiscus, Cochrane, and FECYT (Web of Sciences, CCC, DIIDW, KJD, MEDLINE, RSCI, and SCIELO) according to the guidelines for performing systematic reviews in the sport sciences field. Results: From the 44 studies initially identified, seven studies were fully reviewed, and their outcome measures were extracted and analysed. In the scientific study of football, the studies published thus far have explored the relationship of serum BDNF levels and other cognitive function factors with the genetic expression of polymorphisms, the anthropometric and fitness conditions, the acute exercise effect of the match, and the typical actions of the match such as heading. Conclusions: The heterogeneity of designs and variables evaluated in studies related to BDNF exercise or interaction and football playing does not allow us to conclusively determine that there is a relationship with the cause or effect of genetic, anthropometric, or conditional factors that derive from an increase in BDNF due to actions during the playing of football.

scholarly journals Stepwise Relationship of Exercise Frequency with Serum BDNF Level among Adolescents

2020 ◽  
Author(s):  
Mahmoud Alomari ◽  
Omar F. Khabour
Keyword(s):  
Current Data ◽  
Dose Effect ◽  
Brain Health ◽  
Bdnf Level ◽  
Vigorous Exercise ◽  
Exercise Frequency ◽  
Exercise Participation ◽  
Relationship Of ◽  
The Relationship ◽  
Serum Bdnf

Introduction: Regular participation in exercise in adolescents is associated with numerous health benefits, including improved CV, metabolic, muscular, respiratory, immune, cognitive, and neurohormonal functions. Brain-derived neutrophic factor (BDNF) is essential for several body functions, particularly the neural and cognitive functions. However, the dose-effect of exercise participation on BDNF is not fully understood among adolescents. The current study examined the relationship of serum BDNF level with moderate/vigorous exercise frequency in 703 adolescents aged 13-17 years old. Methodology: ELISA was used to evaluate serum BDNF. Additionally, the SALSA questionnaire was used to obtain the weekly frequency of moderate/vigorous exercise. Results: The ANOVA revealed differences (p=0.001) in BDNF level according to running frequency. Subsequent posthoc analysis showed that BDNF was greater (p<0.05) in adolescents participating three, four, five, six, and seven versus no and one day of exercise. Furthermore, no differences (p>0.05) were found in BDNF between exercising three, four, five, six, and seven days/week. Conclusion: The current data revealed stepwise differences in BDNF between running frequencies, peaking at five days/week. These differences in BDNF seems to plateau when participating more than three days/week. The results confirm the importance of exercise for brain health and are consistent with the current recommendations for moderate/vigorous exercise frequency.

scholarly journals FOOD INSECURITY AND COST-RELATED MEDICATION NON-ADHERENCE IN OLDER ADULTS: A SYSTEMATIC REVIEW

2019 ◽  
Vol 3 (Supplement_1) ◽  
pp. S635-S635
Author(s):  
Lisa L Boss ◽  
Shaunna Caouette
Keyword(s):  
Systematic Review ◽  
Older Adults ◽  
Food Insecurity ◽  
Community Setting ◽  
Preliminary Evidence ◽  
Health Concern ◽  
Financial Resources ◽  
Annual Household Income ◽  
Relationship Of ◽  
The Relationship

Abstract Food insecurity (FI) is defined as having limited access to nutritional and safe foods due to lack of financial resources and is believed to negatively influence health outcomes. Older adults, in particular, face rising healthcare costs and may be forced to choose between purchasing prescribed medications and using their limited financial resources for basic needs, such as food. The purpose of this systematic review was to examine the relationship of food insecurity (FI) and cost-related medication non-adherence (CRN) in older adults living in the community setting. A comprehensive, electronic review of the literature was performed. Criteria for inclusion were original quantitative or qualitative research, written in English, human participants ≥60 years, and published from January 2000 through January 2019. The total number of studies included was six. Main findings from the studies largely indicate that FI and CRN are significantly and positively correlated in older adults living in American communities. Further, CRN increases with the severity of FI. Most participants in these six studies were female, non-Hispanic white, with an annual household income &lt;20k, and with less than a high school education. Although preliminary evidence is promising, research with more rigorous design is warranted to better understand the relationship of FI and CRN in older adults, and to develop appropriate interventions and programs for this growing public health concern.

scholarly journals Transient Responses of the Hepatic Lipidome to Acute Exercise Bouts in Mice

2020 ◽  
Author(s):  
Gregory C Henderson ◽  
Valeria P Martinez Tenorio ◽  
Marc A Tuazon
Keyword(s):  
Acute Exercise ◽  
Total Concentration ◽  
Acyl Chain ◽  
Total Content ◽  
Lipid Classes ◽  
Hepatic Lipid Metabolism ◽  
Interval Exercise ◽  
Single Bout ◽  
High Intensity Interval ◽  
The Relationship

Abstract BACKGROUND: The content of triacylglycerol (TAG) in the liver is known to rapidly increase after a single bout of exercise followed by recovery to sedentary levels. The response of other hepatic lipids, and acyl chain composition of lipid classes, would provide a deeper understanding of the response of hepatic lipid metabolism to acute exercise. METHODS: Female mice performed a single bout of continuous exercise (CE), high-intensity interval exercise (HIIE), or no exercise (CON). The total content of various lipids in the liver, and fatty acids within lipid classes, were measured in tissues collected 3 hours after exercise (Day 1) and the day following exercise (Day 2). RESULTS: The total concentration of TAG rose on Day 1 after exercise (P < 0.05), with a greater elevation in HIIE than CE (P < 0.05), followed by a decline toward CON levels on Day 2. The total concentration of other measured lipid classes was not significantly altered by exercise. However, n-6 polyunsaturated fatty acid relative abundance in diacylglycerol (DAG) was increased by HIIE (P < 0.05). In CON liver, TAG content was positively correlated with DAG and phosphatidylethanolamine (P < 0.05), while these statistical associations were disrupted in exercised mice on Day 1. CONCLUSIONS: Overall, the results characterize flexibility of the hepatic TAG pool size in the liver, and the relationship between TAG and other lipid abundances is altered during the transient TAG pool expansion after exercise. The transient expansion of the hepatic TAG pool and remodeling of the DAG pool may be fundamental components of the physiological response to intense exercise.

Assessing Language in Unstructured Conversation in People With Aphasia: Methods, Psychometric Integrity, Normative Data, and Comparison to a Structured Narrative Task

2021 ◽  
pp. 1-22
Author(s):  
Marion C. Leaman ◽  
Lisa A. Edmonds
Keyword(s):  
Language Production ◽  
Picture Book ◽  
Preliminary Evidence ◽  
Minimal Detectable Change ◽  
Percent Correct ◽  
Global Coherence ◽  
Literature Base ◽  
Communicative Success ◽  
Relationship Of ◽  
The Relationship

Purpose This study evaluated interrater reliability (IRR) and test–retest stability (TRTS) of seven linguistic measures (percent correct information units, relevance, subject–verb–[object], complete utterance, grammaticality, referential cohesion, global coherence), and communicative success in unstructured conversation and in a story narrative monologue (SNM) in persons with aphasia (PWAs) and matched participants without aphasia (M-PWoAs). Furthermore, the relationship of language in unstructured conversation and SNM was investigated for these measures. Methods Twenty PWAs and 20 M-PWoAs participated in two unstructured conversations on different days with different speech-language pathologists trained as social conversation partners. An 8- to 12-min segment of each conversation was analyzed. Additionally, a wordless picture book was used to elicit an SNM sample at each visit. Correlational analyses were conducted to address the primary research questions. Normative range and minimal detectable change data were also calculated for the measures in both conditions. Results IRR and TRTS were moderate to good for parametric measures and moderate to excellent for nonparametric measures for both groups, except for TRTS for referential cohesion for the PWAs in conversation. Furthermore, in PWAs, a strong correlation was demonstrated for three of eight measures across conditions. Moderate or weaker correlations were demonstrated for three of eight measures, and correlations for two of eight measures were not significant. An ancillary finding was no significant differences occurred for sample-to-sample variability between the two conditions for any measure. Conclusions This study replicates previous research demonstrating the feasibility to reliably measure language in unstructured conversation in PWAs. Furthermore, this study provides preliminary evidence that language production varies for some measures between unstructured conversation and SNM, contributing to a literature base that demonstrates language variation between different types of monologue. Thus, these findings suggest that inclusion of the specific types of discourse of interest to the PWA may be important for comprehensive assessment of aphasia. Supplemental Material https://doi.org/10.23641/asha.16569360

The relationship of handwriting ability and literacy in kindergarten: a systematic review

2021 ◽  
Author(s):  
Karen Ray ◽  
Kerry Dally ◽  
Leah Rowlandson ◽  
Kit Iong Tam ◽  
Alison E. Lane
Keyword(s):  
Systematic Review ◽  
Relationship Of ◽  
The Relationship

Knowledge-intensive entrepreneurship: a systematic review and future directions

2019 ◽  
Vol 17 (1) ◽  
pp. 50-67
Author(s):  
Caio Sousa ◽  
Luciana Soares Silva
Keyword(s):  
Systematic Review ◽  
Systematic Approach ◽  
Future Directions ◽  
Content Type ◽  
Future Studies ◽  
Knowledge Intensive ◽  
Relationship Of ◽  
The Relationship ◽  
Knowledge Intensive Entrepreneurship ◽  
Focal Issue

Purpose This study aims to propose a framework based on the main theoretical and empirical contributions present in the literature and articulate the main paths for future studies in knowledge-intensive entrepreneurship (KIE). Design/methodology/approach Using the systematic review method from a survey of 85 articles, related to the KIE focal issue, originated from the Web of Science, it was possible to exhaustively analyze the studies and to divide the theme into key categories. Findings The present research has raised the relationship of five categories to KIE conceptualizations; the data suggest that although the literature indicates a distancing from KIE research, there are multidisciplinary themes and approaches interlinked in the studies. Originality/value The systematic approach in the main theoretical and empirical contributions in KIE enabled us to relate five categories (entrepreneurs, innovation, internationalization, location and triple alliance), and finally, to understand the gaps suggested by the researchers.

scholarly journals Anti-Oxidized LDL Antibodies and Coronary Artery Disease: A Systematic Review

Antioxidants ◽  
2019 ◽  
Vol 8 (10) ◽  
pp. 484 ◽  
Author(s):  
Victor J. van den Berg ◽  
Maxime M. Vroegindewey ◽  
Isabella Kardys ◽  
Eric Boersma ◽  
Dorian Haskard ◽  
...  
Keyword(s):  
Systematic Review ◽  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Cardiovascular Events ◽  
Oxidized Ldl ◽  
Full Text Review ◽  
Electronic Database Search ◽  
Artery Disease ◽  
Relationship Of ◽  
The Relationship

Antibodies to oxidized LDL (oxLDL) may be associated with improved outcomes in cardiovascular disease. However, analysis is restricted by heterogenous study design and endpoints. Our objective was to conduct a comprehensive systematic review assessing anti-oxLDL antibodies in relation to coronary artery disease (CAD). Through a systematic literature search, we identified all studies assessing the relationship of either, IgG or IgM ox-LDL/ copper-oxLDL/ malondialdehyde-LDL, with coronary atherosclerosis or cardiovascular events in populations with, and without, established CAD. Systematic review best practices were adhered to and study quality was assessed. An initial electronic database search identified 2059 records, which was subsequently followed by abstract and full-text review. Finally, we included 18 studies with over 1811 patients with CAD. The studies varied according to populations studied, conventional cardiovascular risk factors and interventional modalities used to assess CAD. IgM anti-oxLDL antibodies were found to indicate protection from more severe CAD and possibly cardiovascular events, whilst the relationship with IgG is more complex and difficult to elucidate, with studies reporting divergent results. In this systematic review, there is evidence that suggests a relationship between anti-oxLDL antibodies and CAD, especially for the IgM subclass. However, further studies, with well-characterized prospective cohorts, will be important to clarify these associations.

Relationship Between Pretraining Subjective Wellness Measures, Player Load, and Rating-of-Perceived-Exertion Training Load in American College Football

2018 ◽  
Vol 13 (1) ◽  
pp. 95-101 ◽  
Author(s):  
Andrew D. Govus ◽  
Aaron Coutts ◽  
Rob Duffield ◽  
Andrew Murray ◽  
Hugh Fullagar
Keyword(s):  
Muscle Soreness ◽  
Perceived Exertion ◽  
Training Session ◽  
College Football ◽  
Training Load ◽  
Rating Of Perceived Exertion ◽  
Football Players ◽  
Unit Increase ◽  
Relationship Of ◽  
The Relationship

Context:The relationship between pretraining subjective wellness and external and internal training load in American college football is unclear.Purpose:To examine the relationship of pretraining subjective wellness (sleep quality, muscle soreness, energy, wellness Z score) with player load and session rating of perceived exertion (s-RPE-TL) in American college football players.Methods:Subjective wellness (measured using 5-point, Likert-scale questionnaires), external load (derived from GPS and accelerometry), and s-RPE-TL were collected during 3 typical training sessions per week for the second half of an American college football season (8 wk). The relationship of pretraining subjective wellness with player load and s-RPE training load was analyzed using linear mixed models with a random intercept for athlete and a random slope for training session. Standardized mean differences (SMDs) denote the effect magnitude.Results:A 1-unit increase in wellnessZscore and energy was associated with trivial 2.3% (90% confidence interval [CI] 0.5, 4.2; SMD 0.12) and 2.6% (90% CI 0.1, 5.2; SMD 0.13) increases in player load, respectively. A 1-unit increase in muscle soreness (players felt less sore) corresponded to a trivial 4.4% (90% CI −8.4, −0.3; SMD −0.05) decrease in s-RPE training load.Conclusion:Measuring pretraining subjective wellness may provide information about players’ capacity to perform in a training session and could be a key determinant of their response to the imposed training demands American college football. Hence, monitoring subjective wellness may aid in the individualization of training prescription in American college football players.

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