Results 11 to 20 of about 108,582 (166)

“The Physical Condition of the Planets” [PDF]

Nature, 1941
I HAD not meant to express any special views about critical temperature. It is true that the atmospheres of Jupiter and Saturn are above the critical temperatures of some substances, but I imagine critical temperatures become completely unimportant when the pressure is 10,000 or more times the critical pressure; the a/v2 of Van der Waals becomes ...
openaire   +2 more sources

Exploring the Impact of Training Methods on Repeated Sprints in Hypoxia Training Effects

Oxygen, 2023
Background: Emerging evidence suggests that the outcomes of hypoxia training may be influenced by various factors, contingent upon the chosen method, such as chamber, tent, or mask. This study aimed to examine how different training methods influence the
Daniel Rojas-Valverde, Aldo A. Vasquez-Bonilla, Rafael Timón, Joan M. Feliu-Ilvonen, Ismael Martínez-Guardado, Guillermo Olcina   +5 more
doaj   +1 more source

The Effect of Exercise on the Skin Content of the Reduced Form of NAD and Its Response to Transient Ischemia and Reperfusion in Highly Trained Athletes

Frontiers in Physiology, 2019
Reduced nicotinamide adenine dinucleotide (NADH) is synthesized in the cellular nucleus, cytoplasm and mitochondria but oxidized into NAD+ almost exclusively in mitochondria.
Olga Bugaj, Jacek Zieliński, Krzysztof Kusy, Adam Kantanista, Dariusz Wieliński, Przemysław Guzik   +5 more
doaj   +1 more source

Relationships between Functional Movement Quality and Sprint and Jump Performance in Female Youth Soccer Athletes of Team China

Children, 2022
This study aimed to determine the optimal functional movement screen (FMS) cut score for assessing the risk of sport injury, and to investigate the correlations between functional movement quality and sprint and jump performance.
Junjie Zhang, Junlei Lin, Hongwen Wei, Haiyuan Liu   +3 more
doaj   +1 more source

Ketone Supplementation in Trained and Physically Active Individuals: Effects on Athletic Performance and Metabolic Variables—A Systematic Review

Life
Exogenous ketone supplementation has emerged as a potential ergogenic strategy for trained and physically active individuals, prompting increasing research into its effects on exercise performance and metabolism.
Jose Martí-Martí, Dídac Navarro-Martínez, Tamara Álvarez-Segura, Juan Bautista Miñana, Consuelo Moratal, Javier Zahonero   +5 more
doaj   +1 more source

Flexible wearable intelligent sensing system for wheelchair sports monitoring

iScience, 2023
Summary: The application of wearable intelligent systems toward human-computer interaction has received widespread attention. It is still desirable to conveniently promote health and monitor sports skills for disabled people. Here, a wireless intelligent
Yupeng Mao, Yuzhang Wen, Bing Liu, Fengxin Sun, Yongsheng Zhu, Junxiao Wang, Rui Zhang, Zuojun Yu, Liang Chu, Aiguo Zhou   +9 more
doaj   +1 more source

Physical conditions on the early Earth [PDF]

Philosophical Transactions of the Royal Society B: Biological Sciences, 2006
The formation of the Earth as a planet was a large stochastic process in which the rapid assembly of asteroidal-to-Mars-sized bodies was followed by a more extended period of growth through collisions of these objects, facilitated by the gravitational perturbations associated with Jupiter.
openaire   +2 more sources

Intelligent monitoring and individualized strategies for preventing altitude sickness during altitude training

Frontiers in Physiology
Altitude training is a special training method that uses a hypoxic environment to improve athletic performance. Its scientificity and safety have always attracted much attention.
Longji Li, Tianfei Fan, Zhijie Luo, Peixin Zhu, Lifeng Zhang   +4 more
doaj   +1 more source

The Effect of a 7-Week Training Period on Changes in Skin NADH Fluorescence in Highly Trained Athletes

Applied Sciences, 2020
The study aimed to evaluate the changes of nicotinamide adenine dinucleotide (NADH) fluorescence in the reduced form in the superficial skin layer, resulting from a 7-week training period in highly trained competitive athletes (n = 41).
Olga Bugaj, Krzysztof Kusy, Adam Kantanista, Paweł Korman, Dariusz Wieliński, Jacek Zieliński   +5 more
doaj   +1 more source

Erythrocyte nicotinamide adenine dinucleotide concentration is enhanced by systematic sports participation

BMC Sports Science, Medicine and Rehabilitation
Background Nicotinamide adenine dinucleotide (NAD+), nicotinamide adenine dinucleotide phosphate (NADP+), and their reduced forms (NADH and NADPH) are the vital cofactors for most cellular oxidation/reduction reactions and therefore influence most ...
Barbara Pospieszna, Krzysztof Kusy, Ewa Maria Slominska, Jacek Zieliński, Monika Ciekot-Sołtysiak   +4 more
doaj   +1 more source