1,721,124 research outputs found
Training Intensity, Volume and Recovery Distribution Among Elite and Recreational Endurance Athletes
No full textThis eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contac
Training Intensity, Volume and Recovery Distribution Among Elite and Recreational Endurance Athletes
No full textThis eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contac
Editorial: Highlights in sports science, technology and engineering 2021/22
No full textNo abstract available
Does Upper-Body Compression Improve 3 × 3-Min Double-Poling Sprint Performance?
No full textPurpose: To evaluate whether upper-body compression affects power output and selected metabolic, cardiorespiratory, hemodynamic, and perceptual responses during three 3-min sessions of double-poling (DP) sprint.
Method: Ten well-trained male athletes (25 ± 4 y, 180 ± 4 cm, 74.6 ± 3.2 kg) performed such sprints on a DP ski ergometer with and without a long-sleeved compression garment.
Result: Mean power output was not affected by such compression (216 ± 25 W in both cases; P = 1.00, effect size [ES] = 0.00), although blood lactate concentration was lowered (P < .05, ES = 0.50-1.02). Blood gases (ES = 0.07-0.50), oxygen uptake (ES = 0.04-0.28), production of carbon dioxide (ES = 0.01-0.46), heart rate (ES = 0.00-0.21), stroke volume (ES = 0.33-0.81), and cardiac output (ES = 0.20-0.91) were also all unaffected by upper-body compression (best P = 1.00). This was also the case for changes in the tissue saturation index (ES = 0.45-1.17) and total blood content of hemoglobin (ES = 0.09-0.85), as well as ratings of perceived exertion (ES = 0.15-0.88; best P = .96).
Conclusion: The authors conclude that the performance of well-trained athletes during 3 × 3-min DP sprints will not be enhanced by upper-body compression
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Compression Garments and Recovery
No full textAchieving the highest levels of performance in competition is only possible through an ordered well thought-out training process designed to stimulate structural and metabolic adaptations in the systems of the body, these adaptations enable the athlete to reach a higher performance level (Smith in Sports Medicine 33:1103–1126, 2003; Stone et al. in Principles and practice of resistance training, Human Kinetics, Champaign 2007)
A primer on wearable technology for injury risk management in distance running
No full textThis book chapter is devoted to the biomechanical interaction of human running with the latest generation of wearable technology. Wearables are transforming the field of biomechanics because they can capture movement outside the laboratory, allowing for new applications in sports. One application is real-time feedback on a biomechanics parameter for injury risk management in distance running. Feedback devices are increasingly used in training practices to this end. The reader will be informed on the development, validation, and evaluation of a rather unique wearable feedback device for impact reduction further in this chapter. A narrative review of scientific studies will be shared with you. These studies resulted from the collaborative efforts of research groups at Ghent University and imec Ghent (i.e., the research unit for Biomechanics of Human Movement, the Institute for Psychoacoustics and Electronic Music, the Center for Microsystems Technology, and the Internet Technology and Data Science Lab). The presented findings offer a better understanding to runners, coaches, and clinicians who may want to encourge impact reduction in runners. I hasten to add that this chapter is merely a small stroke on the surface of a large canvas. The pace of study of wearable technology in running has never been this fast, paralleling the popularity of distance running as a sport
How Data Can Capture Recovery:The Case for Heart Rate Variability
No full textHeart rate variability (HRV) is a proxy of physiological stress, capturing auto-nomic nervous system responses to training and other stressors. As such, a vast body of literature has investigated the impact of acute and chronic stressors on HRV. Technological advancements such as mobile apps and wearables able to capture HRV data in more practical settings have further pushed the adoption and use of HRV analysis. In this chapter, we cover the physiological underpinnings of HRV analysis and discuss metrics and their relation to acute and longer-term stressors and in the context of training periodization and planning. Finally, we provide practical advice on validated technologies and best practices for practitioners interested in using HRV analysis to capture individual responses to training and lifestyle stressors.</p
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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