Results 21 to 30 of about 1,480,758 (288)

The Anaerobic Capacity of Cross-Country Skiers: The Effect of Computational Method and Skiing Sub-technique

Frontiers in Sports and Active Living, 2020
Anaerobic capacity is an important performance-determining variable of sprint cross-country skiing. Nevertheless, to date, no study has directly compared the anaerobic capacity, determined using the maximal accumulated oxygen deficit (MAOD) method and ...
Erik P. Andersson, Dionne A. Noordhof, Nestor Lögdal   +2 more
doaj   +1 more source

Kernel Density Estimation: a novel tool for visualising training intensity distribution in biathlon

Frontiers in Sports and Active Living
PurposeThis study introduces two-dimensional (2D) Kernel Density Estimation (KDE) plots as a novel tool for visualising Training Intensity Distribution (TID) in biathlon. The goal was to assess how KDE plots, alongside traditional training metrics, might
Craig A. Staunton, Craig A. Staunton, Andreas Kårström, Andreas Kårström, Hannes Kock, Hannes Kock, Marko S. Laaksonen, Glenn Björklund   +7 more
doaj   +1 more source

No Additional Benefits of Block- Over Evenly-Distributed High-Intensity Interval Training within a Polarized Microcycle

Frontiers in Physiology, 2017
Introduction: The current study aimed to investigate the responses to block- versus evenly-distributed high-intensity interval training (HIT) within a polarized microcycle.Methods: Twenty well-trained junior cross-country skiers (10 males, age 17.6 ± 1.5
Kerry McGawley, Elisabeth Juudas, Zuzanna Kazior, Zuzanna Kazior, Kristoffer Ström, Kristoffer Ström, Eva Blomstrand, Ola Hansson, Hans-Christer Holmberg   +8 more
doaj   +1 more source

Tracking Method for Alpine Skiing Based on Hybrid Deep Learning and Evolutionary Chimp Optimization Algorithm

Complexity
Tracking athletes in high-speed outdoor sports like alpine skiing causes substantial difficulties because of ever-changing movements, environmental variability, and the limitations of traditional tracking technologies, such as intrusive sensors and ...
Xiaohua Wu, Yongtao Shi, Mohammad Khishe
doaj   +1 more source

Radiative Thermal Management for Extreme Environments: Mechanisms and Design Strategies

Advanced Materials, EarlyView.
In this review, we discuss the fundamental mechanisms of radiative cooling and solar heating, material and structural design strategies, hybrid approaches integrating additional heat transfer pathways, and durability‐oriented designs addressing environmental stresses.
Hyung Rae Kim, Haeseong Kim, Joo Hwan Ko, Gil Ju Lee, Dae‐Hyeong Kim, Young Min Song   +5 more
wiley   +1 more source

Acute respiratory infections hamper training and competition in cross-country skiers, especially in those with asthma

International Journal of Circumpolar Health, 2023
Acute respiratory infections (ARinf) are one of the leading causes that prevent athletes from training and competing. The aim of this study was to investigate the burden of ARinfs during one season among cross-country skiers.
Rikhard Mäki-Heikkilä, Jussi Karjalainen, Jari Parkkari, Heini Huhtala, Maarit Valtonen, Lauri Lehtimäki   +5 more
doaj   +1 more source

Recent Advances in Plasma‐Enhanced Atomic Layer Etching for Next‐Generation Nanofabrication

Advanced Materials Interfaces, EarlyView.
Continued semiconductor miniaturization demands atomic‐scale patterning and ultralow surface roughness beyond the capabilities of conventional reactive ion etching. This review highlights advances in isotropic and anisotropic plasma‐enhanced atomic layer etching since 2020, covering fundamental mechanisms, applications across major semiconductor ...
Shih‐Nan Hsiao
wiley   +1 more source

Iron‐Mediated Release of Aged Dissolved Organic Carbon From Waterlogged Peatland Under Warming

Advanced Science, EarlyView.
This study conducts a five‐year in situ warming experiment in high‐altitude peatlands to examine dissolved organic carbon (DOC) release. The study shows that warming promotes the release of plant‐derived modern DOC in drained peatlands, but amplifies aquatic export of century‐old DOC from waterlogged peatlands via Fe‐mediated DOC mobilization—a ...
Guohua Dai, Zhiying Yang, Zongguang Liu, Wanjia Hu, Lixiao Ma, Enze Kang, Wanqing Luo, Yunpeng Zhao, Chengzhu Liu, Juan Jia, Ting Liu, Chen He, Quan Shi, Jianliang Liu, Yongheng Gao, Huai Chen, Hailong Zhang, Meixun Zhao, Xiaojuan Feng   +18 more
wiley   +1 more source

Reliability agreement in foul and penalty judgements between officials in the Swedish hockey league

Frontiers in Sports and Active Living
IntroductionOfficials are essential in terms of player safety and injury prevention, especially in contact team sports such as ice hockey, where numerous fast pace and high force contacts occur.
Glenn Björklund, Olivia Procter, Mikael Swarén, Mikael Swarén   +3 more
doaj   +1 more source

Sex Differences in Performance and Pacing Strategies During Sprint Skiing

Frontiers in Physiology, 2019
Purpose: This study aimed to compare performance and pacing strategies between elite male and female cross-country skiers during a sprint competition on snow using the skating technique.Methods: Twenty male and 14 female skiers completed an individual ...
Erik Petrus Andersson, Andrew Govus, Andrew Govus, Oliver Michael Shannon, Kerry McGawley   +4 more
doaj   +1 more source