Article
Physiology
Steve H. Faulkner, Philippa Jobling
Summary: This study investigated the relationship between aerodynamic optimization, energy expenditure, heat production, and performance in cycling time trials. Results showed that the best aerodynamic-physiological economy occurred at a hip angle of 12 degrees. The data suggest that reducing hip angle physiologically costs less than the aerodynamic benefit, especially for shorter TT events. Further research is needed to analyze the impact on thermoregulation and performance in the field.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2021)
Article
Green & Sustainable Science & Technology
Tuo Jiang, Yong Min, Guiping Zhou, Lei Chen, Qun Chen, Fei Xu, Huanhuan Luo
Summary: The paper introduces a practical, non-iterative hierarchical dispatch method for the coordinated operation of integrated heat and power systems, which protects private information and reduces communication overhead by introducing the concepts of feasible region of boundary variables and optimal function of boundary variables. Case studies show that the hierarchical dispatch method achieves a larger regulating range of combined heat and power units, reducing coal consumption and curtailed wind power by 4.46% and 38.50% respectively, with an optimal value difference of less than 1% compared to the exact method.
RENEWABLE & SUSTAINABLE ENERGY REVIEWS
(2021)
Article
Veterinary Sciences
Jamile Andrea Rodrigues da Silva, Messy Hennear de Andrade Pantoja, Welligton Conceicao da Silva, Jean Caio Figueiredo de Almeida, Rafaella de Paula Pacheco Noronha, Antonio Vinicius Correa Barbosa, Jose de Brito Lourenco Junior
Summary: Buffaloes are well-adapted to hot and humid climates, but they experience thermal discomfort under direct sunlight. This study suggests that using a silvopastoral system during the rainy season can improve the thermal comfort and productivity of buffaloes.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Energy & Fuels
Tuo Jiang, Yong Min, Guiping Zhou, Lei Chen, Qun Chen, Fei Xu
Summary: IHPS is a promising approach for mitigating wind curtailment issues, particularly through modeling the internal composition of CHP plants to achieve synergistic effects of different energy resources, promoting wind power accommodation and reducing fossil fuel consumption.
CSEE JOURNAL OF POWER AND ENERGY SYSTEMS
(2021)
Review
Green & Sustainable Science & Technology
Rajendran Nandhini, Baskaran Sivaprakash, Natarajan Rajamohan
Summary: This study investigates the utilization of unused waste heat energy below 100 degrees C and the role of heat pumps in recovering low level heat energy. Hybrid absorption-compression heat pump showed the highest waste heat recovery rate, while nanofluids are found to be a high-performance working fluid for heating and cooling applications. The study also evaluates a desalination system that can simultaneously produce potable water and generate electrical power.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2022)
Article
Thermodynamics
Rui Wang, Jiyu Qian, Tao Wei, Haojie Huang
Summary: With the innovation of high power and high integration for chips in microwave devices, research on high-efficiency integrated cooling systems is advancing. The proposed integrated closed cooling system overcomes the disadvantages of current cooling architecture, achieving high efficiency and reliability for cooling high-power chips.
CASE STUDIES IN THERMAL ENGINEERING
(2021)
Article
Thermodynamics
Mengshu Zhu, Jinghua Li
Summary: This paper investigates the heat transfer process and thermal time-lag issues in combined heat and power (CHP) systems. It proposes a novel dispatch model considering heat transfer delays and adopts a decomposition-coordination method to solve the non-linear problem. The simulation results prove the effectiveness and accuracy of the proposed model.
Article
Sport Sciences
Yuri Hosokawa, Sebastien Racinais, Takao Akama, David Zideman, Richard Budgett, Douglas J. Casa, Stephane Bermon, Andrew J. Grundstein, Yannis P. Pitsiladis, Wolfgang Schobersberger, Fumihiro Yamasawa
Summary: This document outlines the key components of exertional heat stroke (EHS) prehospital management, emphasizing early recognition, diagnosis, on-site cooling, and advanced clinical care. It recommends implementing policies and procedures for EHS prehospital management at sports competitions under high heat stress, and establishing a designated area for EHS diagnosis, treatment, and monitoring.
BRITISH JOURNAL OF SPORTS MEDICINE
(2021)
Article
Engineering, Industrial
Christopher A. J. Anderson, Ian B. Stewart, Kelly L. Stewart, Denise M. Linnane, Mark J. Patterson, Andrew P. Hunt
Summary: In this study, the effects of repeated work bouts in the heat on peak body core temperature were investigated, along with exploring sex-based differences in body core temperature responses. The research found that body core temperature elevation over time was faster in the initial work bouts, with females showing significantly lower body core temperature elevation compared to males during the trial. Additionally, a gradual reduction in heat storage in subsequent exercise bouts prevented a cumulative increase in heat strain.
APPLIED ERGONOMICS
(2022)
Article
Thermodynamics
Rongtang Liu, Miaomiao Liu, Can Xu, Ming Liu, Weixing Yuan
Summary: Traditional combined heat and power systems are limited by their heating-controlled operation mode, leading to low efficiency and flexibility. In this study, a novel combined heat and power system integrated with solar energy is proposed, which greatly improves the energy utilization and flexibility. Detailed analytical models and evaluations show that the average net energy efficiency of the novel system can reach 54.68% during daytime and 55.75% during nighttime, while the average net exergy efficiency can reach 38.73% and 38.83%, respectively. The peak-shaving ability is significantly improved, and standard coal consumption is reduced by 295.35 tons per day compared to traditional systems. This study provides a promising approach for enhancing the efficiency and flexibility of combined heat and power plants using solar energy.
APPLIED THERMAL ENGINEERING
(2023)
Article
Sport Sciences
Sharifah B. Alhadad, Ivan C. C. Low, Jason K. W. Lee
Summary: Ice slurry ingestion during low-intensity exercise can reduce thermal strain, but it has limited effect during moderate-intensity exercise. Ice slurry may be an effective heat mitigation strategy in low-intensity exercise settings.
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
(2021)
Review
Dermatology
Sharon Kam, Barrington J. Hwang, Eva R. Parker
Summary: Climate change, characterized by rising temperatures, extreme weather events, increased aeroallergen production, and air pollution, is recognized as a global public health crisis. This review examines the intersection of climate change, atopic dermatitis, and mental health comorbidities, highlighting the amplified impact on vulnerable populations.
INTERNATIONAL JOURNAL OF DERMATOLOGY
(2023)
Article
Agriculture, Multidisciplinary
Marcelo Bahuti, Tadayuki Yanagi Junior, Bruna Pontara Vilas Boas Ribeiro, Alessandro Torres Campos, Murilo Santos Freire, Renato Ribeiro de Lima
Summary: This study aimed to develop a heat balance model in laying hens and analyze their performance, as well as simulate the partition between sensible and latent heats. The model was validated and proved to be accurate for predicting cloacal temperature, contributing to identifying strategies for mitigating thermal stress in laying hens.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2022)
Article
Thermodynamics
Youjun Zhang, Zhihua Ge, Yunxi Yang, Junhong Hao, Lei Xu, Xiaoze Du, Chresten Traeholt
Summary: This research proposes a novel CHP cascade heating system by integrating it with the electric heat pump (EHP), which improves energy utilization efficiency and flexibility, promoting decarbonization and renewable energy integration.
ENERGY CONVERSION AND MANAGEMENT
(2023)
Article
Sport Sciences
Jacky Soo, Sebastien Racinais, David J. Bishop, Olivier Girard
Summary: This study examined the effects of mild heat exposure on performance during repeated sprints. The results showed that performance was enhanced with mild heat exposure when the sprints were matched for initial mechanical output. This improvement occurred despite higher thermal and perceptual strain, without any changes in quadriceps neural drive.
JOURNAL OF SCIENCE AND MEDICINE IN SPORT
(2022)
Article
Sport Sciences
Shannon Connolly, Peter Peeling, Martyn J. Binnie, Paul S. R. Goods, Anthony J. Blazevich, Wouter P. Timmerman, Chris R. Abbiss
Summary: This study examined the magnitude and reliability of rate of torque development (RTD) during a cycling sprint with altered resistance, duration, and pedal downstroke. The results suggest that the average of downstrokes 2 and 3 during a 5-second sprint with heavy or very heavy resistance is the most reliable measurement of RTD in sprint cyclists.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2023)
Article
Hospitality, Leisure, Sport & Tourism
Victor Alvino Souza, Renan Vieira Barreto, Guilherme Beneduzzi Mantovani, Camila Coelho Greco, Benedito Sergio Denadai, Kazunori Nosaka, Leonardo Coelho Rabello Lima
Summary: After performing loaded resistance exercise, known as post-activation performance enhancement (PAPE), explosive performance is increased. This study investigated the effects of plyometric exercise on sedentary young men and found that PAPE disappeared after plyometric exercise induced minor muscle damage, but counter movement jump (CMJ) height increased during the recovery period, exhibiting a priming effect.
RESEARCH QUARTERLY FOR EXERCISE AND SPORT
(2023)
Article
Physiology
Noriaki Kawanishi, Takaki Tominaga, Katsuhiko Suzuki
Summary: This study found that resistance exercise, specifically electrical pulse stimulation-induced muscle contraction, resulted in changes in the miRNA and mRNA profiles of circulating extracellular vesicles. Muscle-specific miRNAs such as miR-1, miR-133, and miR-206 showed significant upregulation after 90 minutes of muscle contraction. Additionally, mRNA expression changes in circulating extracellular vesicles after muscle contraction were found to promote angiogenesis and regulate the immune response. These changes in extracellular vesicle properties may play a crucial role in resistance exercise-induced physiological adaptations.
AMERICAN JOURNAL OF PHYSIOLOGY-REGULATORY, INTEGRATIVE AND COMPARATIVE PHYSIOLOGY
(2023)
Article
Sport Sciences
Trevor C. C. Chen, Yuh-Chuan Huang, Tai-Ying Chou, Sheng-Tsung Hsu, Mei-Yen Chen, Kazunori Nosaka
Summary: The study aimed to investigate the effects of FIR lamp therapy on muscle damage and proprioception after eccentric exercise. 24 sedentary women were assigned to a FIR or sham treatment group and performed maximal eccentric contractions. The results showed that the FIR condition had smaller changes in measures of muscle damage and proprioception compared to the sham condition, suggesting the effectiveness of FIR lamp therapy in accelerating recovery.
EUROPEAN JOURNAL OF SPORT SCIENCE
(2023)
Article
Biochemistry & Molecular Biology
Takaki Tominaga, Jiapeng Huang, Shuo Wang, Miwa Noguchi, Yishan Tong, Momoko Asano-Oritani, Katsuhiko Suzuki
Summary: Several food components, including polyphenols and phytonutrients, have immunomodulatory effects. Collagen, known for its various bioactivities, can promote wound healing and relieve symptoms of bone/joint disease. This study investigated the immunomodulatory effects of collagen-derived dipeptides and amino acids on macrophages and peripheral blood mononuclear cells (PBMC), and found that there is no difference in cytokine secretion between dipeptides and amino acids.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Physiology
Nathan D. W. Smith, Chris R. Abbiss, Olivier Girard, Brendan R. Scott, Jeremiah J. Peiffer
Summary: This study investigated the influence of blood-flow restriction (BFR) on the distribution of pace, physiological demands, and perceptual responses during self-paced cycling. The results showed that trained cyclists adopted a more even distribution of pace when BFR was applied compared with a negative distribution without restriction. This study provides a useful tool to understand how the distribution of pace is self-regulated.
INTERNATIONAL JOURNAL OF SPORTS PHYSIOLOGY AND PERFORMANCE
(2023)
Article
Sport Sciences
Ricardo N. O. Mesquita, Christopher Latella, Cassio V. Ruas, Kazunori Nosaka, Janet L. Taylor
Summary: The study compared different formulas used to estimate muscle contraction velocity (Vc) assessed by tensiomyography. The reliability, required minimum number of trials, proportional bias, and effects of joint angle were investigated. The results showed that formulas 1 (0-2 mm of displacement) and 5 (normalized to 10-90% of maximal displacement) had higher reliability. A minimum of 6-7 trials was required for reliable estimates. The study also found that Vc was faster at shorter muscle lengths for all formulas except formula 5. Different formulas should not be used interchangeably and more precise nomenclature is needed to describe the information obtained from each formula.
JOURNAL OF STRENGTH AND CONDITIONING RESEARCH
(2023)
Review
Sport Sciences
James L. Nuzzo, Matheus D. Pinto, Kazunori Nosaka
Summary: Since the 1970s, researchers have been studying the potential difference in muscle fatigue between maximal eccentric and concentric resistance exercise. Our paper aimed to review studies comparing acute changes in muscle strength after bouts of these exercises. We identified 30 relevant studies, which showed that both exercises caused significant strength loss, but the loss was less in lower-body muscles during eccentric exercise. We also found evidence of similar strength loss in the eccentric and concentric phases during coupled exercises.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2023)
Article
Sport Sciences
James L. Nuzzo, Matheus D. Pinto, Kazunori Nosaka
Summary: Connected adaptive resistance exercise (CARE) machines are new technology that can adjust resistance exercise loads in response to muscle fatigue. This study found that different protocols of maximal effort bicep curl exercise on a CARE machine can effectively induce muscle fatigue, with women being more sensitive to fatigue in the eccentric phase and men being more sensitive to fatigue in the concentric phase.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2023)
Article
Sport Sciences
James L. Nuzzo, Matheus D. Pinto, Kazunori Nosaka
Summary: Eccentric resistance exercise and its potential benefits have attracted the interest of researchers and practitioners in the past years, but its delivery has been challenging due to equipment limitations. This paper introduces the concept of connected adaptive resistance exercise (CARE) technology, which adjusts resistance in real time based on the individual's force, and explores its potential to improve the delivery of eccentric resistance exercise in various settings. The use of CARE technology has implications for sports medicine, physiotherapy, exercise physiology, and strength and conditioning, but further investigations are needed to assess its impact on participation and clinical outcomes.
Article
Biochemistry & Molecular Biology
Hiroaki Sako, Mohieldin Youssef, Olga Elisseeva, Takayuki Akimoto, Katsuhiko Suzuki, Takashi Ushida, Tadashi Yamamoto
Summary: Slower translation rates reduce protein misfolding by allowing time for proper folding. MicroRNAs (miRNAs), which are absent in prokaryotes, can stall translating ribosomes, preventing misfolding with little effect on protein abundance. This eukaryote-specific mechanism provides insights into co-translational protein folding and has potential in targeting protein misfolding diseases.
Article
Physiology
Riku Yoshida, Kazuki Kasahara, Yuta Murakami, Shigeru Sato, Midori Tanaka, Kazunori Nosaka, Masatoshi Nakamura
Summary: The purpose of this study was to investigate whether muscle strength would still increase when the frequency of 3-s maximal eccentric contraction training was reduced to 2 or 3 days per week. The results suggest that at least three days per week of training are necessary for increasing muscle strength, and more frequent sessions in a week (e.g., 5 days) appear to induce greater increases in muscle strength.
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
(2023)
Article
Sport Sciences
Tomoko Koeda, Georgios Mavropalias, Kazue Mizumura, Kimiaki Katanosaka, Kazunori Nosaka
Summary: This study suggests that an increase in NGF is associated with the development of DOMS in humans.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2023)
Article
Sport Sciences
Trevor C. Chen, Hsin-Lian Chen, Wei-Chin Tseng, Tai-Ying Chou, Jui-Hung Tu, Allen C. Parcell, Kazunori Nosaka
Summary: The present study compared the effects of ipsilateral and contralateral repeated bouts of exercise on the elbow and knee flexor muscles, and found that the protective effect was similar between the two muscle groups.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2023)
Article
Medicine, General & Internal
Mahsa Naghashpour, Dian Dayer, Hadi Karami, Mahshid Naghashpour, Mahin Taheri Moghadam, Seyed Mohammad Jafar Haeri, Katsuhiko Suzuki
Summary: This study demonstrates that magnolol has a significant anti-tumor effect on MKN-45 cells and can be used to overcome cisplatin resistance in gastric cancer cells when combined with cisplatin.
MEDICINA-LITHUANIA
(2023)
