The study aimed to determine the pacing strategies of elite single-boat sprint kayakers, as well as the relationships between stroke parameters (stroke rate (SR) and stroke length (SL)) and kayak speed throughout the race. High-resolution split speed and stroke parameter data from men's (MK1) and women's (WK1) single-boat A- and B-finals in 2016-2017 international sprint kayak competitions were analysed. Correlation coefficients were calculated between SR-speed and SL-speed during each split for each race group. Athletes followed all-out, positive and seahorse-shaped pacing strategies for the 200 m, 500 m and 1000 m races, respectively. SL-speed had greater correlations during the first half of the MK1 200 m race, whereas SR-speed had greater correlations during the second half. SR-speed correlations were greater than SL-speed correlations throughout the final 150 m of WK1 200 m races. There were large and very large correlations between SR-speed at the end of both the WK1 500 m and MK1 1000 m race distances, respectively, despite following different pacing strategies. Single-boat pacing strategies change due to race distance during major international sprint kayak competitions, whereas the relationships between stroke parameters and speed change depending on athlete sex and the race distance.
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http://dx.doi.org/10.1080/02640414.2021.1927314 | DOI Listing |
PLoS One
January 2025
School of Economics and Management, North University of China, Taiyuan, China.
The exploration of digital transformation peer effects on the innovation performance of emerging industries is crucial for analyzing the underlying mechanisms of digital transformation, optimizing resource allocation among peer enterprises, and enhancing industrial competitiveness. This study empirically examines the influence of digital transformation peer effects on the innovation performance of the photovoltaic industry, using data from 150 photovoltaic companies listed in Shanghai and Shenzhen between 2011 and 2022. The study found that: (1) The digital transformation of the photovoltaic industry is influenced by regional and industry-specific peer effects.
View Article and Find Full Text PDFEur Heart J Qual Care Clin Outcomes
January 2025
William Harvey Research Institute, Queen Mary University of London, Charterhouse Square, London EC1M 6BQ, UK.
Aims: In light of recent advances in imaging techniques, molecular understanding and therapeutic options in hypertrophic cardiomyopathy (HCM), we performed a systematic review of current guidelines for the diagnosis and management of HCM in order to identify consensus and discrepant areas in the clinical practice guidelines.
Methods And Results: We systematically reviewed the English language guidelines and recommendations for the management of HCM in adults. MEDLINE and EMBASE databases were searched for guidelines published in the last 10 years.
Heart Rhythm
December 2024
Christian-Albrechts-University, Medical Faculty, Christian-Albrechts-Platz 4, 24118 Kiel, Germany; University of Applied Science, Life Sciences, An der Karlstadt 8, 27568 Bremerhaven, Germany. Electronic address:
Left bundle branch block (LBBB) causes immediate electrical and mechanical dys-synchrony of the left ventricle (LV) and gradual structural damages in the Purkinje cells and myocardium. Mechanical dys-synchrony reduces the LV ejection fraction (EF) instantly, but only to ≈55% in an otherwise normal heart. Because of the heart's in-built functional redundancy, a patient with LBBB does not always notice the heart's reduced efficiency straight away.
View Article and Find Full Text PDFJ Sports Sci
January 2025
School of Sports Training, Chengdu Sport University, Sichuan, China.
The pace of play, a critical tactical element in basketball, significantly influences offensive and defensive strategies. This study aimed to identify statistical indicators that differentiate winners from losers across varying game paces using a sample of 90 Olympic men's basketball games from 2016, 2021, and 2024. Games were categorized as fast-paced or slow-paced via clustering algorithms.
View Article and Find Full Text PDFPacing Clin Electrophysiol
December 2024
Department of Cardiovascular Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy.
Introduction: Ultrasound (US)-guided axillary vein puncture is a safe and effective approach for cardiac implantable electronic device (CIED) implantation, and it is highly recommended by the current consensus document. However, only reports on small populations are available in the current literature regarding the comparison of this technique with other traditional approaches (subclavian vein blind puncture and cephalic vein surgical cutdown).
Purpose: We aimed to assess the effectiveness and safety of US- guided axillary vein puncture using a microintroducer kit for CIED implantation as compared to the aforementioned traditional approaches.
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