Review
Physiology
Dajo Sanders, Teun van Erp
Summary: This article provides an updated overview of the intensity, load demands, and power profile of professional cycling races, highlighting the significant influence of stage types on the characteristics of the races and the differences between single-day races and multi-day races.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2021)
Article
Physiology
Victor Rodriguez-Rielves, Alejandro Martinez-Cava, Angel Buendia-Romero, Jose Lillo-Bevia Ramo, Javier Courel-Ibanez, Alejandro Hernandez-Belmonte, Jesus G. Pallares
Summary: The study aims to investigate the reproducibility of the Rotor 2INpower device under various cycling conditions. Results show that the device demonstrates acceptable levels of accuracy in monitoring power output in most situations, with slight reductions in agreement observed under high cadences and vibration.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2022)
Article
Green & Sustainable Science & Technology
Zhaofu Wang, Jinliang Xu, Tianze Wang, Zheng Miao, Qingyang Wang, Guanglin Liu
Summary: In this study, the effect of power capacity on the performance of supercritical carbon dioxide coal-fired power plants was investigated. It was found that the thermal efficiency initially increases and then decreases with an increase in power capacity, due to a tradeoff between pressure losses and turbine efficiency. The use of partial flow mode was shown to eliminate the penalty effect of pressure drops. This study provides guidelines for the design and operation of supercritical carbon dioxide coal-fired power plants.
JOURNAL OF CLEANER PRODUCTION
(2023)
Article
Physiology
Gabriele Gallo, Manuel Mateo-March, Peter Leo, Antonio Campos-Donaire, Alexis Gandia-Soriano, Andrea Giorgi, Emanuela Faelli, Piero Ruggeri, Roberto Codella, Igo Mujika, Luca Filipas
Summary: This study investigates the relationship between field-derived power and physical performance parameters with competition success in road cycling climbing specialists of different age-related categories. The findings suggest that both absolute and relative power outputs are important for climbing specialists' success, and superior fatigue resistance differentiates high-ranked climbers from low-ranked climbers.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2022)
Article
Chemistry, Analytical
Nicholas J. Fiolo, Hai-Ying Lu, Chia-Hsiang Chen, Philip X. Fuchs, Wei-Han Chen, Tzyy-Yuang Shiang
Summary: The study evaluated the validity and reliability of a tire pressure sensor as a power meter for indoor cycling. Results showed that the tire pressure sensor had near-perfect correlation and agreement with the gold standard SRM in both 1 s and 1 min data, indicating its effectiveness in estimating average power output over longer time periods.
Article
Sport Sciences
Irineu Loturco, Peter Ashcroft, Nathan Evans, Chris Tombs, Lucas A. Pereira, Ian Jeffreys
Summary: The study examined the relationship between different physical capacities in young Welsh rugby players. Significant associations were found between jump height, sprint velocity, maximum isometric strength, and aerobic fitness. Strong positive interrelationships were observed between strength, speed, and jump qualities. The findings suggest that U16 athletes can improve their aerobic fitness and neuromuscular performance simultaneously. Practitioners are recommended to use multifaceted training schemes with young rugby players, including endurance, speed, strength, and power training.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2022)
Article
Sport Sciences
Manuel Mateo-March, Xabier Muriel, Pedro L. Valenzuela, Alexis Gandia-Soriano, Mikel Zabala, David Barranco-Gil, Jesus G. Pallares, Alejandro Lucia
Summary: Acute altitude exposure affects real-world cycling performance differently in lowlanders and altitude natives, giving altitude natives a competitive advantage in races at altitudes above 1500 meters.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2022)
Article
Physiology
Teun van Erp, Robert P. Lamberts, Dajo Sanders
Summary: This study evaluated the power profile required for achieving a top 5 result in different types of World Tour cycling races, and provides benchmarks for achieving race results.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2022)
Article
Geriatrics & Gerontology
Dmitriy Bondarev, Taija Finni, Katja Kokko, Urho M. Kujala, Pauliina Aukee, Vuokko Kovanen, Eija K. Laakkonen, Sarianna Sipila
Summary: The study examined longitudinal changes in physical performance during the menopausal transition, finding declines in muscle strength and power but an increase in walking distance. High levels of physical activity were associated with greater increases in grip strength but greater declines in vertical jumping height among women in perimenopause.
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
(2021)
Article
Sport Sciences
Maxime Robin, Antoine Nordez, Sylvain Dorel
Summary: This study aimed to characterize the mechanical output of an elite sprinter during international competitions, focusing on the relationship between final road sprints and power-velocity-endurance characteristics. The results showed that final road sprints were mainly performed on the ascending limb of the power-velocity relationship, with a significant level of fatigue induced by the race. Additionally, sprint power exhibited high variability between races and was strongly related to the level of power produced during the last minute before the sprint.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2022)
Article
Biology
Cristian Marin-Pagan, Stephane Dufour, Tomas T. Freitas, Pedro E. Alcaraz
Summary: Overall, adolescence brings about significant physiological changes, especially in terms of oxygen uptake, fat oxidation, power thresholds, and ventilatory thresholds in youth cyclists. The study evaluated and compared the physiological profiles of different age categories of road cyclists to determine performance requirements. Major differences were observed, with the Youth group showing clear changes in metabolic zones and significant variations between Under-23 and Junior groups in terms of power output and functional threshold power.
Article
Engineering, Electrical & Electronic
Takeo Sasai, Etsushi Yamazaki, Yoshiaki Kisaka
Summary: This paper presents analytical results on different methods for estimating the longitudinal power profile in optical fibers at a coherent receiver. The two types of methods reviewed and analyzed are correlation-based methods (CMs) and minimum-mean-square-error-based methods (MMSEs). The paper provides analytical expressions for their output power profiles and spatial resolution, clarifying the theoretical performance limits and differences between the two methods. The study shows that the estimated power profiles of CMs are limited in spatial resolution and measurement accuracy, while MMSEs approach a true power profile under a fine spatial step size, canceling out the convolution effect.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Medicine, General & Internal
Sergi Rodriguez-Rodriguez, Esther Jovell-Fernandez, Leonor Cuadra-Llopart, Jacobo Rodriguez-Sanz, Noe Labata-Lezaun, Carlos Lopez-de-Celis, Joan Bosch, Albert Perez-Bellmunt
Summary: With the increasing number of older adults and their declining motor and cognitive function, finding alternative methods for assessing physical functionality is crucial. This study evaluated the relationship between functional tests and upper limb muscle power, finding a strong correlation between them. Therefore, evaluating upper limb muscle power could be an interesting tool for assessing physical performance in bedridden older adults.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Sport Sciences
Peter Leo, James Spragg, John Wake, Jeroen Swart
Summary: This study aimed to investigate predictors of cycling performance in U23 cyclists by comparing traditional approaches to a novel method - the compound score. The results showed that the compound score, along with absolute power, had the highest predictive capacity for podium performance.
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
(2023)
Article
Physiology
Teun van Erp, Robert P. Lamberts
Summary: This study investigated maximal mean power output (MMP) in female professional cycling races. The results showed that short-duration power outputs were higher in TOP5 races compared to NOT-TOP5 races. Additionally, the timing of all MMPs was later and after more workload in TOP5 races. However, no difference was found in the percentage of MMP relative to the cyclist's season's best between TOP5 and NOT-TOP5 races.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2022)
