スポーツ医学およびドーピング研究ジャーナル

This study delves into the intricate interplay between nutrition, anxiety and menstrual patterns among elite rowing athletes. The demands of highperformance sports can impose significant physiological and psychological stressors on athletes, potentially leading to disturbances in menstrual cycles. This research aims to understand the connections between athletes' dietary habits, anxiety levels and alterations in menstrual regularity. Through a comprehensive cross-sectional analysis, a cohort of elite female rowers was assessed for dietary intake, anxiety levels and menstrual patterns. Nutritional profiles were evaluated using dietary recall methods, anxiety was measured through validated psychometric scales and menstrual patterns were tracked over a specified period. Correlations and regression analyses were conducted to identify potential relationships among the variables.

Preliminary findings suggest a potential association between inadequate nutritional intake, heightened anxiety and irregular menstrual cycles in elite rowing athletes. The data underscores the significance of balanced nutrition in maintaining hormonal equilibrium and overall well-being. Furthermore, a bidirectional relationship appears to exist, as menstrual irregularities can contribute to increased anxiety levels, forming a feedback loop. These insights emphasize the importance of holistic athlete care, where addressing nutritional requirements and psychological stressors play a pivotal role in preserving athletes' reproductive health and optimizing performance. By elucidating the intricate web of interactions between nutrition, anxiety and menstrual patterns, this study contributes to the growing body of knowledge aimed at enhancing the health and performance of elite athletes.

The study aims to investigate the influence of napping on wakefulness and endurance performance in athletes. Maintaining optimal levels of alertness and physical performance is crucial for athletes and napping has been proposed as a potential strategy to enhance these factors. In this study, a group of athletes participated in two experimental sessions separated by a washout period. During one session, participants were assigned to a 20-minute nap, while during the other session, they remained awake in a quiet restful state. Subjective measures of alertness, including self-reported sleepiness and fatigue, were collected before and after each intervention. Additionally, participants performed an endurance performance test after the intervention, involving a standardized cycling exercise. Performance metrics such as time to exhaustion and perceived exertion were recorded. Our results showed that athletes who underwent the 20-minute nap reported significantly improved subjective alertness and reduced feelings of fatigue compared to the awake rest condition. Furthermore, endurance performance, as indicated by longer time to exhaustion and lower perceived exertion, was significantly enhanced following the nap compared to the rest condition. These findings suggest that a short nap could effectively boost wakefulness and positively impact endurance performance in athletes. Incorporating napping into training regimens may offer a practical and efficient strategy for optimizing both alertness and physical capabilities among athletes.

This study delves into the intricacies of growth patterns among paediatric athletes, exploring the notable variability across a spectrum of diverse sport disciplines. Analysing data from participants representing 46 different sport types, the research sheds light on the nuanced effects of athletic training on body height trajectories. Growth patterns during adolescence are essential indicators of overall health and development and athletes’ growth can be influenced by the demands of their respective sports. The study employs longitudinal data to investigate how sport-specific training regimens might impact growth trajectories. Results reveal a wide spectrum of growth patterns, with some athletes experiencing growth spurts while others exhibit more gradual growth. The analysis highlights that factors such as training intensity, biomechanical stress and nutritional status contribute to the observed variability. These findings underscore the need for sport-specific considerations in monitoring the growth and development of young athletes. The study's insights have implications for optimizing training protocols and promoting the overall well-being of paediatric athletes participating in various sports.

The phenomenon of neuroendocrine blockade of the reproductive axis in female athletes has garnered significant attention due to its implications for women's health and athletic performance. Intense physical training, coupled with the physiological stress of competitive sports, can lead to alterations in the intricate balance of the Hypothalamic-Pituitary-Gonadal (HPG) axis. This disruption often results in disturbances to menstrual function and hormonal irregularities, collectively termed as exercise-induced reproductive dysfunction. This review delves into the complex interplay between neuroendocrine factors and the female reproductive system, highlighting the mechanisms through which excessive exercise and energy deficiency can impact the regulatory networks controlling ovulation and hormone production. Furthermore, the potential long-term consequences of such disturbances, including compromised bone health and fertility issues, are discussed. Various diagnostic criteria and assessment methods are explored, shedding light on the challenges faced by clinicians in identifying and managing these conditions. Strategies to mitigate the effects of neuroendocrine blockade, such as appropriate nutrition and periodized training, are presented with a focus on promoting both optimal athletic performance and reproductive well-being. The synthesis of current research underscores the importance of multidisciplinary collaboration among sports scientists, endocrinologists, and coaches to develop comprehensive approaches that safeguard the health of female athletes while maximizing their potential on the field.

Background and purpose: The purpose of this study was to find out the effect of Russian current and strengthening exercise on pain strength and performance in sprinters with calf muscle strain.

Materials and methods: 15 subjects randomly selected who fulfilled the inclusion and exclusion criteria. Pain intensity was measured using Numeric Pain Rating Scale (NPRS), Strength was measured using single leg calf raise test and speed was measured by using 100 M sprint test. These outcome parameters were measured at pre-intervention, post- intervention and at the end of 4 weeks of follow up.

Results: The result found significant statistical difference in pre-posttest value for the given sample.

Conclusion: The results of this study suggested that Russian current and strengthening exercise were effective on pain strength and performance in sprinters with calf muscle strain.