Effectiveness of sleep extension on athletic performance and nutrition of female track athletes

Adequate sleep is an essential component to rest and recovery for athletes. Detrimental effects of inadequate sleep (sleep deprivation), on athletes\u27 performance have been well documented. In contrast, increasing sleep (sleep extension), has not been thoroughly investigated in this population. Furthermore, the effect of sleep on an athlete\u27s nutrition behaviors and choices has yet to be determined.;PURPOSE: The purpose of this study was to investigate the effects of one additional hour of sleep on performance and nutrition behaviors on collegiate, female, track and field athletes.;METHODS: Twenty-one females (age 20.2 +/- 1.8 yrs) maintained normal sleep habits for one week. Baseline data were collected and followed by a one week sleep extension period. Physical performance was measured using a standard anaerobic test (Wingate Anaerobic Test). The Automated Self Administered (ASA) 24-hour food-recall questionnaire was used to test nutrient intake. Reaction time and mood, used in association with sleep efficiency, were measured using the Psychomotor Vigilance Test (PVT) and Profile of Mood States (POMS), respectively. Significance was set at p ≤ 0.05.;RESULTS: Subjects (n = 21) significantly increased total sleep from baseline (429.3 +/- 38 minutes, 451.4 +/- 44.8 minutes respectively; p = 0.03). Subjects showed a trend towards improvements in peak power (692.9 +/- 213.2 watts versus 713.5 +/- 214.6 watts) and slight decrements in fatigue index from baseline (37.3 +/- 10.6% versus 38.8 +/- 8.42%), however these were not significant (p = 0.07, p = 0.28 respectively). Mean PVT scores remained unchanged (p = 0.98) and POMS scores significantly decreased (p = 0.01) following more sleep. Although not significant, the athletes showed increased caloric intake (p = 0.87) with increased percentage of total fat (p = 0.24) after sleep extension.;CONCLUSION: No significant differences were seen in physical performance, however significant improvements in psychological performance (total mood disturbance score) was seen after sleep extension in college female track athletes. Increased caloric intake with an increase in dietary fat consumption was seen with more sleep, however not significant.;LIMITATIONS: Short sleep extension dosage may have limited the ability to detect a significant change in nutritional behaviors and physical performance in athletes

Using a Multi-Omic Approach to Investigate a Diet Intervention in Young Adults at Risk of Disease

Background: Poor dietary behaviors are widely recognized in the role of development and course of a variety of illnesses, including but not limited to cardiovascular disease, obesity, and diabetes. Young adults have increased risk due to poor dietary behaviors, especially as they transition into a college setting. The evidence demonstrates an urgency for developing treatment and prevention through dietary intervention approaches in this population. In addition to improper diet, investigators have connected abnormal gut microbiome (i.e. the collection of genes from our intestinal microbiota) to inflammation and obesity, therefore momentum has gained in treating the altered gut microbiome with dietary manipulation to decrease morbidity and mortality. Furthermore, research is moving towards metagenomic work to investigate mechanisms in disease progression that link genes that contribute to the microbes and the host.;Objective: By using young adults at-risk of disease, the FRUVEDomics pilot study investigated the effects of a dietary intervention, based on the United States Department of Agriculture\u27s (USDA) 2010 Dietary Guidelines for Americans, on nutritional behaviors, the metabolome, and the microbiome. Additionally, relationships between the three variables were explored.;Methods: This pilot study stemmed as a subproject off of a USDA, Agriculture and Food Research Initiative (AFRI) called \u27Get Fruved\u27, which ignited the collaboration of a team of scientist (nutrition, metabolomics, microbiome, cardiovascular, microcirculation and physiology) from West Virginia University (WVU) (Clinical Trials Record 1409433435). Thirty-six young adults were randomized into three diet plans; a FRUVED diet (50% fruit and vegetable), a FRUVED and low simple carbohydrate diet (FRUVED+LRC), and a FRUVED and low-fat diet (FRUVED+LF). Biochemical, anthropometric, serum, and fecal stool samples were collected pre and post intervention, along with subjective behavioral measurements via survey administration.;Results: The dietary intervention resulted in an adjusted dietary change for all individuals, which included increases in fruit and vegetables and total fiber, with simultaneous decreases in saturated fat and empty calories. No other lifestyle behavior modifications were seen during the course of the 8 weeks (i.e. sleep, physical activity and stress), therefore the decrease we observed in systolic blood pressure, waist circumference, and total cholesterol were due to the treatment of an overall healthy diet. Pro-inflammatory markers improved and decreases were observed in total ceramides after the intervention. Next generation sequencing of genomic DNA from fecal samples showed decreases in Firmicutes and increases in Bacteroidetes after dietary manipulation. At the family level, increases in S24-7 and Bacteroidaceae, and decreases in Ruminococcaceae were found. Relationships were found between dietary variables, serum amino acids, and bacteria.;Conclusion: The researchers of the FRUVEDomics study observed improvements in metabolic health and changes to microbial populations that have been linked to energy balance and lowered inflammation after adoption of a healthy diet among young adults attending a university. Overall, this study lays the foundation for personalized medicine among a college population. In particular, this translational, team science approach helped determine mechanisms by which microbes affect production of metabolites from diet

eB4CAST: An Evidence-Based Tool to Promote Dissemination and Implementation in Community-Based, Public Health Research

eB4CAST, evidence-Based forecast C-capture, A-assemble, S-sustain, T-timelessness (eB4CAST), framework was developed from existing dissemination and implementation (D & I) constructs as a dissemination tool to promote community-based program usability and future application in targeted populations. eB4CAST captures and transforms research findings into a dissemination report that shows program need and impact to endorse program continuation and expansion. This is achieved through direct and indirect data collection of community factors and program impact that can showcase the need for program sustainability and potential for future dissemination sites. Testimonials, individual feedback, and program process and outcomes contribute to the direct data while data collected from census, county, and state databases and reports allow for indirect information to be captured and analyzed. Capturing data in the two levels allow eB4CAST to forecast program need and highlight program impact through a footprint. eB4CAST framework for dissemination tool creation is organized into four sections: Capture, Assemble, Sustainability, and Timelessness. Capture encompasses the collection of indirect and direct data related to intervention goals. Assemble is the compilation of the data into a visually appealing and easily understood media. Sustainability encourages the use of dissemination tools to provide forecast of program need and footprint of program impact back to community participants, program leaders, and key stakeholders to endorse program sustainability. Lastly, timelessness encourages cyclic movement through these constructs to continue program monitoring and data sharing to ensure timeless program evaluation and conformation to change in needs. The eB4CAST framework provides a systematic method to capture justification of program need and impact of community-based research that can be modified to fit diverse public health interventions providing a necessary D & I tool

Shortening of the Pittsburgh Sleep Quality Index Survey Using Factor Analysis

Objective/Introduction. Lengthy surveys have the potential to burden users and can lead to inaccuracies. Conducting analyses to shorten existing validated surveys is beneficial. The objective, therefore, was to shorten the Pittsburgh Quality Sleep Index (PSQI) for young adults. Methods. PSQI data from 1246 college students were used. An exploratory factor analysis (FA) was utilized to shorten survey after dropping select items. Nonparametric correlation analysis (Spearman’s rho) was conducted between the global sleep scores of the shortened and original surveys. Agreements tests (Kappa and McNemar’s test) measured the agreement of the surveys and sensitivity and specificity were evaluated. Results. Six factors were examined using maximum likelihood factoring method, applying squared multiple correlations with Promax rotation to allow for correlated variables. FA with six factors explained 100% of shared variance based on eigenvalues and accounted for 61% of variability based on variables. The FA resulted in 13 selected questions (“shortPSQI”), corresponding to 5 of the 7 components of the original survey. High correlation was found between the global scores of the original survey and the “shortPSQI” (rho = 0.94, ). When the global score was converted to the categorical variable of good or poor sleepers, the agreement test indicated strong agreement (Kappa 0.83, 95% CI 0.79–0.86, ). Conclusion. The validated, 19-item PSQI survey was shortened to 13 items. Tests of correlation and agreement indicate the “shortPSQI” may be an acceptable alternative to the original survey for young adults. Clinical Trial Registration. Data for this study was taken from the Get Fruved study, registered on October 21, 2016, on clinicaltrials.gov (NCT02941497)

“Your Body Feels Better When You Drink Water”: Parent and School-Age Children’s Sugar- Sweetened Beverage Cognitions

Sugar-sweetened beverages (SSBs) are a leading source of added sugar in the American diet. Further, ingestion of added sugars from SSBs exceeds recommendations. Thus, interventions that effectively reduce SSB consumption are needed. Focus group discussions with parents (n = 37) and school-aged children between the ages of 6 and 11 years (n = 41) from Florida, New Jersey, and West Virginia were led by trained moderators using Social Cognitive Theory as a guide. Trends and themes that emerged from the content analysis of the focus group data indicated that both parents and children felt that limiting SSBs was important to health and weight control. However, parents and children reported consuming an average of 1.85 ± 2.38 SD and 2.13 ± 2.52 SD SSB servings/week, respectively. Parents and children were aware that parent behaviors influenced kids, but parents reported modeling healthy SSB behaviors was difficult. Busy schedules, including more frequent parties and events as children get older, were another barrier to limiting SSBs. Parents were most successful at limiting SSBs when they were not in the house. This qualitative research provides novel insights into parents’ and children’s cognitions (e.g., beliefs, attitudes), barriers, and facilitators related to SSB ingestion. Consideration of these insights during nutrition intervention development has the potential to improve intervention effectiveness in reducing SSB intake

Self-Reported vs. Measured Height, Weight, and BMI in Young Adults

Self-reported height and weight, if accurate, provide a simple and economical method to track changes in body weight over time. Literature suggests adults tend to under-report their own weight and that the gap between self-reported weight and actual weight increases with obesity. This study investigates the extent of discrepancy in self-reported height, weight, and subsequent Body Mass Index (BMI) versus actual measurements in young adults. Physically measured and self-reported height and weight were taken from 1562 students. Male students marginally overestimated height, while females were closer to target. Males, on average, closely self-reported weight. Self-reported anthropometrics remained statistically correlated to actual measures in both sexes. Categorical variables of calculated BMI from both self-reported and actual height and weight resulted in significant agreement for both sexes. Researcher measured BMI (via anthropometric height and weight) and sex were both found to have association with self-reported weight while only sex was related to height difference. Regression examining weight difference and BMI was significant, specifically with a negative slope indicating increased BMI led to increased underestimation of weight in both sexes. This study suggests self-reported anthropometric measurements in young adults can be used to calculate BMI for weight classification purposes. Further investigation is needed to better assess self-reported vs measured height and weight discrepancies across populations

Neck Circumference Positively Relates to Cardiovascular Risk Factors in College Students

The objective of this study was to determine the relationship between neck circumference (NC) and other anthropometric measures and examine cut-off points for males and females according to existing waist circumference cut-off levels in this age group. Across 8 universities, 1562 students underwent a physical assessment. Spearman rho correlations (ρ) were calculated to determine associations between NC and other continuous variables of health. Receiving operating characteristic curves were constructed to assess the optimal cut-off levels of NC of males and females with central obesity. Participants were predominantly Caucasian (67%), female (70%), and outside of Appalachia 2 (82%). Forty-one percent of males and 34% of females had a BMI ≥ 25 kg/m . In both sexes, significant positive correlations were seen between NC and body weight, BMI, waist circumference, hip circumference, and systolic blood pressure (all p-values \u3c 0.0001). NC ≥ 38 cm for males and ≥33.5 cm for females were the optimal cut-off values to determine subjects with central obesity. NC has been identified to closely correlate with other anthropometric measurements related to disease and could be used as a convenient, low-cost, and noninvasive measurement in large-scale studies

The Effect of iCook 4-H, a Childhood Obesity Prevention Program, on Blood Pressure and Quality of Life in Youth and Adults: A Randomized Control Trial

Objective: Obesity increases the risk of developing hypertension and from population-based samples with estimations that of 2-4% of the U.S. pediatric population has hypertension, which may affect quality of life. This study examined the effects of an obesity prevention program on blood pressure and quality of life in youth and adult participants. Methods: A multi-state research team recruited treatment dyads (youth and their adult meal preparer) to participate in a 12-week randomized control trial and follow-up through 24 months. The treatment group received a cooking and physical activity intervention, followed by booster sessions and mailed newsletters over the remaining two-year period. The control group received no intervention. Resting blood pressure and health related quality of life (HRQOL) surveys were administered at 0,4,12 and 24 months. Results: 228 dyads were recruited (n=77 control and n=151 for treatment). Youth and adult systolic blood pressure (SBP) increased over the 24 months (p=0.003 and p=0.03, respectively) with no differences between groups. From baseline to 24 months both control and treatment youths’ physical and psychological HRQOL increased (p=0.01 and p=0.002, respectively). At 0 and 4 months, youth and adult SBP was positively correlated (r=0.24, p=0.003 and r=0.33, p\u3c0.001, respectively). In the treatment group, there was an inverse association between adult SBP and youth psychological HRQOL at 4 months (r=-0.20, p=0.04), and a similar trend in adult SBP and youth physical HRQOL at 4 months in the treatment group (r=-0.19, p=0.05). Conclusion: A youth-adult dyad obesity prevention program consisting of culinary, mealtime and physical activity education, elicited improvements in HRQOL in youth participants

Development of iGrow: A Curriculum for Youth/Adult Dyads to Increase Gardening Skills, Culinary Competence, and Family Meal Time for Youths and Their Adult Caregivers

This manuscript describes the development of a “learn by actively participating” curriculum for youth and their adult caregivers (dyad pair) to increase gardening skills, culinary competence, and family meal time. The curriculum was developed by integrating “iCook 4-H” and Junior Masters Gardener “Health and Nutrition from the Garden”, and “Essential Elements of 4-H Youth Development” curriculums with additional resources for gardening activities from the USDA’s My Plate and garden-based recipes. Expert reviewers (n = 11) provided feedback on the curriculum content, session structure, dosage, age appropriateness, and balance of the three focused areas. Seven family dyads (n = 14) participated in focus groups about understanding of need, interest, barriers, and potential engagement. A 10-week curriculum was developed and named: iGrow. The curriculum is a hands on, active learning program delivered through five, two-hour sessions using a family dyad model. Three main focus areas included gardening, culinary skills, and family conversation/interaction that all focused on togetherness. For the final iGrow curriculum, expert-level content review and feedback from focus group dyad pairs was used to revise the curriculum which further enhanced the approach and balance of the curriculum content. Focus group feedback supported appropriateness, dosage and learning objectives, and content depth. This curriculum has been developed to provide knowledge of gardening and culinary skills with the goal of increased consumption of fruit and vegetables

Efficacy of nutritional interventions to lower circulating ceramides in young adults: FRUVEDomic pilot study

The 2010 USDA Dietary Guidelines for Americans (DGA) recommends a diet largely composed of fruit and vegetables. Consuming a diet high in fruit and vegetables and low in refined carbohydrates and saturated fat may reduce an individual’s risk for type 2 diabetes, nonalcoholic fatty liver disease, low-grade chronic inflammation, and metabolic syndrome (MetS). Several recent studies have implicated the bioactive sphingolipid ceramide as an associative and causative biomarker for the development of these conditions. Considering that the intake of fruit and vegetables is frequently inadequate in young adults, we performed a pilot investigation to assess the efficacy of a free-living fruit and vegetable intervention on overall metabolic health, circulating ceramide supply, and inflammatory status in young adults. We discovered that adoption of the recommended DGA for fruit and vegetable intake for 8 weeks decreased waist circumference, systolic blood pressure, and circulating cholesterol. Lipidomics analysis revealed that nutritional intervention can lower circulating ceramides, including C24:0 ceramide, a known inhibitor of insulin signaling. Unexpectedly, we observed an increase in C16:0 ceramide, suggesting that this form of ceramide in circulation is not associated with metabolic disease in humans. We also observed an improved inflammatory status with enhanced fruit and vegetable intake that was correlated with ceramide concentrations. These data suggest that adopting the recommended DGA is associated with a reduction of many, but not all, ceramide species and may help to prevent or mitigate MetS. Future research needs to assess whether the ceramide-lowering ability of nutritional intervention is associated with reduced risk of developing metabolic disease