Effect of the Quality of Dietary Proteins on the Sleep Young Elite Athletes and the Obese Adolescent

2019 ◽  
Author(s):  
Keyword(s):  
Elite Athletes ◽  
Dietary Proteins ◽  
Obese Adolescent

How coach leadership is related to the coach-athlete relationship in elite sport

2021 ◽  
pp. 174795412110215
Author(s):  
Cristina López de Subijana ◽  
Luc J Martin ◽  
Javier Ramos ◽  
Jean Côté
Keyword(s):  
Transformational Leadership ◽  
Elite Athletes ◽  
Intellectual Stimulation ◽  
Elite Sport ◽  
Gender Comparison ◽  
Coach Leadership ◽  
Role Modelling ◽  
Group Goals ◽  
Individualized Consideration

The purpose of this study was to explore the association between coach leadership and the coach-athlete relationship. Eighty-one elite athletes ( M = 20.4 years; SD = 3.8; 58% female and 42% male) responded to questionnaires pertaining to their coaches’ leadership behaviours and the quality of their relationship. The overall model for predicting the quality of the coach-athlete relationship according to perceived coach leadership behaviours explained 61% of the variance. Three transformational leadership behaviours were positively associated with the quality of the coach-athlete relationship: individualized consideration, appropriate role-modelling, and fostering acceptance of group goals and teamwork. Based on a gender comparison, men perceived higher levels of leadership pertaining to role-modelling and intellectual stimulation, in addition to higher levels of quality for the coach-athlete relationship. This research emphasizes the importance of engaging in transformational leadership behaviours with regards to associations with perceptions of the coach-athlete relationship in elite sport contexts.

scholarly journals Champ4life Study Protocol: A One-Year Randomized Controlled Trial of a Lifestyle Intervention for Inactive Former Elite Athletes with Overweight/Obesity

Nutrients ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 286
Author(s):  
Analiza M. Silva ◽  
Catarina L. Nunes ◽  
Catarina N. Matias ◽  
Filipe Jesus ◽  
Rúben Francisco ◽  
...  
Keyword(s):  
Quality Of Life ◽  
Physical Activity ◽  
Lifestyle Intervention ◽  
Elite Athletes ◽  
Resting Energy Expenditure ◽  
Overweight And Obesity ◽  
Metabolic Markers ◽  
Health Related ◽  
Former Elite Athletes

Preventive and educational programs directed to former elite athletes in the areas of healthy living are required. This is particularly relevant as obesity and health-related problems are observed in retired athletes, especially in those whose current levels of physical activity are below the recommendations. During their sports career, elite athletes are supported by a multidisciplinary team; upon retirement, no support is provided for the transition to a different lifestyle. So far, no program has been implemented to promote sustained healthy lifestyle behaviors in the post-career transition and evidence is lacking for such an intervention. Firstly, we aim to determine if Champ4life, a 1-year lifestyle intervention targeting inactive former athletes with overweight and obesity, is effective for reducing total and abdominal fat. Secondly, our purpose is to assess the effectiveness of the intervention on the levels of physical activity and sedentary behavior, resting energy expenditure, cardio-metabolic markers, physical fitness, energy balance components, eating self-regulation markers, and quality of life over 12 months. Champ4life is an evidence- and theory-based program using a randomized control trial design (intervention vs. control group) that will be conducted on 94 inactive former elite athletes with overweight and obesity. The first four months of the Champ4Life program include a nutritional appointment and 12 weekly, 90-min sessions. Classroom sessions seek to provide participants with key information and a toolbox of behavior change techniques to initiate and sustain long-term lifestyle changes. Participants will undergo baseline, 4-month, and 12-month measurements of body composition (primary outcomes), resting energy expenditure, physical fitness, metabolic markers, energy balance related-markers, and quality of life (secondary outcome). This trial will provide evidence on the effectiveness of the Champ4life program, a pioneer lifestyle intervention for retired athletes, offering tools for sustained changes in physical activity, sedentary behavior and diet, aiming to improve body composition and overall health-related markers.

Patterns and Rates of Ammonia Excretion by Juvenile American Lobsters, Homarus americanus, Fed Casein- and Crab Protein-Based Diets

1986 ◽  
Vol 43 (6) ◽  
pp. 1290-1294 ◽  
Author(s):  
C. M. Hawkins ◽  
J. D. Castell ◽  
V. Leroyer
Keyword(s):  
Dietary Protein ◽  
Nutritional Quality ◽  
Ammonia Excretion ◽  
Homarus Americanus ◽  
Protein Formulation ◽  
Metabolic Status ◽  
Dietary Proteins ◽  
Formulated Diets ◽  
Excretion Rates

The rate of excretion of nitrogenous wastes is not only a function of an animal's metabolic status but is also a function of the nutritional quality and quantity of dietary protein. Hourly rates of ammonia excretion by Stage V and Stage VI juvenile lobsters, Homarus americanus, fed purified diets formulated with casein or a purified crab protein, were measured over 24 h postfeeding to evaluate differences in use efficiencies of these two dietary proteins. Hourly ammonia excretion rates by Stages V and VI lobsters fed the casein-based formulated diets were significantly higher than those of animals fed the crab protein formulation. In addition to differences in ammonia excretion rates observed between animals fed the two diets, regular but different recurring patterns in hourly excretion rates were found between Stages V and VI lobsters fed each diet. Our findings illustrate that although the percentage of protein in the food of juvenile lobsters may be similar, the use of the nitrogen component is significantly different. We conclude that the quality of the protein in a diet may be as important (if not more important) as its quantity.

scholarly journals The life of high-level athletes: The challenge of high performance against the time constraint

2016 ◽  
Vol 53 (2) ◽  
pp. 234-249 ◽  
Author(s):  
Fabrice Burlot ◽  
Rémi Richard ◽  
Helene Joncheray
Keyword(s):  
High Performance ◽  
Elite Athletes ◽  
Time Constraint ◽  
Sport Expertise ◽  
Pace Of Life ◽  
And Performance ◽  
High Level ◽  
State Of Tension ◽  
Sporting Performance

The conditions for high performance have changed considerably over the last few years. Athletes must spend more time training and competing, devote a lot of time to mental, physical and nutritional professionals and continue to respond to some constraints such as studying, spending time with their families, friends and quality of life. In this context and based on the work of Rosa, we wonder about the capacity of elite athletes to combine all these constraints, namely to manage the acceleration in their pace of life, in order to be able to achieve always more and better in the same time unit. To address this issue, we interviewed 42 French high-level athletes who train at the National Institute of Sport, Expertise and Performance (INSEP). Results show that to suit their goals, athletes implement arrangement and adjustment strategies aimed at making the time they have wholly useful and efficient. This time constraint puts athletes in a perpetual state of tension, on the verge of a good or poor life. The paper shows how the question of time, and particularly the acceleration of pace of life, is vital for modern sporting performance.

scholarly journals Sleep-Wake Cycle of Elite Athletes Prior to the Rio 2016 Olympic Games

2020 ◽  
Vol 13 (2) ◽  
pp. 76-80
Author(s):  
F V Narciso ◽  
A Silva ◽  
DF Rodrigues ◽  
JPP Rosa ◽  
F Viegas ◽  
...  
Keyword(s):  
Olympic Games ◽  
Elite Athletes ◽  
Team Sports ◽  
Sleep Efficiency ◽  
Poor Sleep ◽  
Quality Of Sleep ◽  
Poor Sleep Quality ◽  
Significant Difference ◽  
Individual Sports

Objective: To analyze chronotype, duration and quality of sleep among elite athletes, to compare differences in sleep variables between sex, and to compare differences between athletes of individual and team sports. Method: The sample included 70 Brazilian elite athletes of both sex (male=37; female=33) with a mean age 23.0 ± 4.0 years old. To measure sleep-wake cycle, athletes wore an actigraph on the wrist for 10 days. Moreover, athletes answered the chronotype questionnaire of Horne and Östberg. Results: The most athletes are intermediate-type (n=55, 78.6%), with a mean of 07h:18min of sleep per night. The athletes demonstrated higher sleep fragmentation (39.26 ± 23.66 minutes) and higher sleep latency (30.88 ± 16.19 minutes) during pre-competition training days. Additionally, the athletes of individual sports demonstrated more fragmentation (p<0.001) and less sleep efficiency (p<0.001) compared athletes of team sports. However, there was no significant difference in all sleep variables between the male and female sex. Conclusion: The overall elite athletes presented poor sleep quality during the training periods prior to the Rio 2016 Olympic Games, and individual athletes showed higher fragmentation and poorer sleep efficiency compared to team athletes.

scholarly journals Tinjauan Literatur Kesan Obesiti ke atas Psikososial Remaja

2015 ◽  
Author(s):  
NORFADILAWATI ALIAS ◽  
FUZIAH SHAFFIE
Keyword(s):  
Quality Of Life ◽  
Literature Review ◽  
Physical Health ◽  
Adolescent Development ◽  
Health Problem ◽  
Human Life ◽  
Well Being ◽  
Obese Adolescent ◽  
Drastic Increase

Obesity is a health problem that threatens all aspects of human life. While rising rates of obesity involving adolescents do not show such a drastic increase, this problem should not be underestimated. In addition to grappling with the issue of adolescent development, adolescent obesity is also facing with the problem of physical health, social and psychological caused by obesity. If the issue is not addressed with appropriate intervention, obese adolescent will have the quality of life and well-being of poor and disrupt their functioning in society. Therefore, this paper will try to discuss about the health effects of psychological and social (psychosocial) experienced by obese adolescents based on the literature review and proposed interventions that can be used to help them.  

Implementation of Percutaneous Transforaminal Endoscopic Discectomy in Competitive Elite Athletes With Lumbar Disc Herniation: Original Study and Review of the Literature

2021 ◽  
Vol 49 (12) ◽  
pp. 3234-3241
Author(s):  
Stylianos Kapetanakis ◽  
Nikolaos Gkantsinikoudis ◽  
Georgios Charitoudis
Keyword(s):  
Elite Athletes ◽  
Lumbar Disc ◽  
Low Back ◽  
Sf 36 ◽  
Endoscopic Discectomy ◽  
Related Quality ◽  
Percutaneous Transforaminal Endoscopic Discectomy ◽  
Health Related

Background: Lumbar disc herniation (LDH) represents a frequent clinical entity in athletes. Surgical treatment of LDH with endoscopic spine surgical techniques has been proposed as a feasible alternative in these patients. Purpose: To study the particular outcomes of percutaneous transforaminal endoscopic discectomy (PTED) in competitive elite athletes with surgically treatable LDH. Study Design: Case series; Level of evidence, 4. Methods: A total of 55 competitive elite athletes with diagnosed LDH based on clinical and radiologic criteria were enrolled in this prospectively designed study. All patients underwent successful PTED. Clinical evaluation was conducted with the well-established visual analog scale for lower limb and low back pain separately. The 36-Item Short Form Health Survey (SF-36) was implemented for health-related quality of life analysis. Patients were assessed preoperatively and at regular postoperative intervals: 6 weeks and 3, 6, and 12 months, as well as 2 years. Results: Operated levels were L3-L4 (5.5%), L4-L5 (69.1%), and L5-S1 (25.4%). No major perioperative complications were observed. All patients successfully reached the end of follow-up at 2 years. Both visual analog scale scores (lower limb and low back pain) showed clinically and statistically significant improvement at 6 weeks postoperatively, with subsequent minor improvement and stabilization. All recorded SF-36 parameters demonstrated major clinical amelioration at 6 weeks, with subsequent minor but constant statistically significant improvement until the end of follow-up. Comparative evaluation of the SF-36 revealed that the physical function, bodily pain, role-emotional, and mental health parameters showed quantitatively greater improvement in comparison with rest indices. Conclusion: PTED constitutes a feasible and effective technique for surgical management of LDH in athletes, providing favorable outcomes in terms of postoperative pain and health-related quality of life. Proper performance of technique for specific cases of L5-S1 LDH may be more challenging, and these cases should be evaluated selectively for suitability for this procedure.

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