Results 91 to 100 of about 5,738,081 (222)

Altitude or heat training to increase haemoglobin mass and endurance exercise performance in elite sport

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Upper panel, high‐altitude training typically encompasses 3–4 weeks of altitude exposure combined with training either at altitude or at sea level. Following this, a response for haemoglobin mass (Hbmass) is seen in two of three studies, which coincides with some performance gains in <50% of studies.
Carsten Lundby, Paul Robach
wiley   +1 more source

Intramuscular pathways of maladaptation in overtraining syndrome

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend The transition from adaptive overreaching to maladaptive overtraining and mechanisms through which excessive training load can lead to performance decline. Four interconnected pathophysiological domains are highlighted: neural fatigue, involving both central and peripheral components such as altered sensory feedback and reflex ...
Emily Shorter   +4 more
wiley   +1 more source

Long-Term Performance Trends in Elite Cross-Country Skiing

open access: yesThe Sky
Performance trends in elite long-distance cross-country skiing were analyzed using the Winter Olympics, FIS Cross-Country World Championships, and FIS World Cup race results from 1992 to 2026 for the top 30 finishers in men’s 50 km and women’s 30 km ...
Rock Ouimet
doaj   +1 more source

Mechanisms of haemoglobin mass expansion following heat stress

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Theorised mechanisms of heat stress‐induced erythropoiesis which may facilitate the expansion of haemoglobin mass. A, acute: heat stress‐induced renal ischaemia. Redistribution of blood flow away from the kidneys to facilitate thermoregulation during heat stress could reduce renal oxygen delivery, subsequently lowering renal PO2${
Elliott J. Jenkins   +4 more
wiley   +1 more source

Determinants of maximal oxygen uptake in highly trained females and males: a mechanistic study of sex differences using advanced invasive methods

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend The results from this study show that maximal cardiac output, stroke volume and leg blood flow are similar between highly trained females and males after normalisation to lean body mass (LBM). However, the 10% higher haemoglobin concentration ([Hb]) and arterial O2 content in males result in higher systemic and leg O2 delivery ...
Øyvind Skattebo   +11 more
wiley   +1 more source

A Smart Ski Pole for Skiing Pattern Recognition and Quantification Application

open access: yesSensors
In cross-country skiing, ski poles play a crucial role in technique, propulsion, and overall performance. The kinematic parameters of ski poles can provide valuable information about the skier’s technique, which is of great significance for coaches and ...
Yangyanhao Guo   +11 more
doaj   +1 more source

Drew Rothrock's Fundamental Contributions to Arctic Science

open access: yesPerspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract David Andrew (Drew) Rothrock III lived during a period of vigorous scientific research in the Earth Sciences, from the International Geophysical Year to the era of satellites and high‐speed computer modeling. Drew made fundamental contributions to Arctic science, helping to lay the theoretical foundations for modeling the movement and ...
Harry L. Stern   +4 more
wiley   +1 more source

Exploring Recreational Conflict on Shared Backcountry Tramping and Mountain Biking Tracks in Aotearoa New Zealand

open access: yesNew Zealand Geographer, Volume 82, Issue 3, December 2026.
ABSTRACT In a move away from exclusive use by modality, a number of shared tramping and mountain biking tracks have been developed in New Zealand. We ask: On shared tracks, what tensions arise and how are they experienced? Using data from online surveys of track‐users, we examine bikers' and trampers' perspectives and experiences of conflict.
Joe Fagan, Robin Kearns, Laura Bates
wiley   +1 more source

Sex differences in speed and sub-technique selection in elite sprint cross-country skiers: a time-trial qualification analysis

open access: yesFrontiers in Sports and Active Living
PurposeThis study investigated sex differences in speed, sub-technique selection and cycle characteristics during a sprint cross-country skiing time-trial qualification in the classical style.MethodsThirty elite- to world-class cross-country skiers (15 ...
Øyvind Sandbakk   +4 more
doaj   +1 more source

Using the power balance model to simulate cross-country skiing on varying terrain

open access: yes, 2014
John F Moxnes,1 Øyvind Sandbakk,2 Kjell Hausken31Department for Protection, Norwegian Defence Research Establishment, Kjeller, Norway; 2Center for Elite Sports Research, Department of Neuroscience, Norwegian University of Science and Technology ...
Hausken K, Sandbakk Ø, Moxnes JF
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