检索结果-南通市图书馆

Impacts of exercise interventions on different diseases and organ functions in mice

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2020年第1期9卷 53-73页

作者： Shanshan Guo Yiru Huang Yan Zhang He Huang Shangyu Hong Tiemin Liu School of kinesiology Shanghai University of SportShanghai 20043&China State Key laboratory of Genetic Engineering School of Life SciencesFudan UniversityShanghai 200032China Key laboratory of Molecular Enzymology and Engineering of Ministry of Education College of Life ScienceJilin UniversityChangchun 130012China Department of Endocrinology and Metabolism State Key Laboratory of Genetic EngineeringSchool of Life SciencesZhongshan HospitalFudan UniversityShanghai 200032China

Background'. In recent years, much evidence has emerged to indicate that exercise can benefit people when performed properly. This reviewsummarizes the exercise interventions used in studies involving mice as they are related to special diseases or physiological status. To furtherunderstand the effects of exercise interventions in treating or preventing diseases, it is important to establish a template for exercise interventionsthat can be used in future exercise-related ***'. PubMed was used as the data resource for articles. To identify studies related to the effectiveness of exercise interventions for treatingvarious diseases and organ functions in mice, we used the following search language: (exercise [Title] OR training [Title] OR physical activity[Title]) AND (mice [title/abstract] OR mouse [title/abstract] OR mus [title/abstract]). To limit the range of search results, we included 2 filters:one that limited publication dates to "in 10 years,^ and one that sorted the results as "best match^^. Then we grouped the commonly used exercisemethods according to their similarities and differences. We then evaluated the effectiveness of the exercise interventions for their impact on diseasesand organ functions in 8 different ***'. A total of 331 articles were included in the analysis procedure. The articles were then segmented into 8 systems for which the exerciseinterventions were used in targeting and treating disorders: motor system (60 studies), metabolic system (45 studies), cardio-cerebral vascularsystem (58 studies), nervous system (74 studies), immune system (32 studies), respiratory system (7 studies), digestive system (1 study), and thesystem related to the development of cancer (54 studies). The methods of exercise interventions mainly involved the use of treadmills, voluntarywheel-running, forced wheel-running, swimming, and resistance training. It was found that regardless of the specific exercise method used, mostof them demonstrat

关键词： Diseases Exercise intervention Mice Organ functions

Can changes in midsole bending stiffness of shoes affect the onset of joint work redistribution during a prolonged run?

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2022年第3期11卷 293-302页

作者： Sasa Cigoja Jared R.Fletcher Benno M.Nigg Human Performance laboratory Faculty of KinesiologyUniversity of CalgaryCalgaryAB T2N 1N4Canada Department of Health and Physical Education Mount Royal UniversityCalgaryAB T3E 6K6Canada

Purpose This study aimed to investigate if changing the midsole bending stiffness of athletic footwear can affect the onset of lower limb joint work redistribution during a prolonged *** Fifteen trained male runners(10-km time of<44 min)performed 10-km runs at 90%of their individual speed at lactate threshold(i.e.,when change in lactate exceeded 1 mmol/L during an incremental running test)in a control and stiff shoe condition on 2 *** limb joint kinematics and kinetics were measured using a motion capture system and a force-instrumented *** were acquired every 500 *** Prolonged running resulted in a redistribution of positive joint work from distal to proximal joints in both shoe *** to the beginning of the run,less positive work was performed at the ankle(approximately 9%;p≤0.001)and more positive work was performed at the knee joint(approximately 17%;p≤0.001)at the end of the *** running in the stiff shoe condition,the onset of joint work redistribution at the ankle and knee joints occurred at a later point during the *** A delayed onset of joint work redistribution in the stiff condition may result in less activated muscle volume,because ankle plantar flexor muscles have shorter muscles fascicles and smaller cross-sectional areas compared to knee extensor *** active muscle volume could be related to previously reported decreases in metabolic cost when running in stiff *** results contribute to the notion that footwear with increased stiffness likely results in reductions in metabolic cost by delaying joint work redistribution from distal to proximal joints.

关键词： Fatigue Footwear Mechanics Performance Running

Neuromuscular,biomechanical,and energetic adjustments following repeated bouts of downhill running

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2022年第3期11卷 319-329页

作者： Arash Khassetarash Gianluca Vernillo Renata L.Krüger W.Brent Edwards Guillaume Y.Millet Human Performance laboratory Faculty of KinesiologyUniversity of CalgaryCalgary T2N 1N4Canada Department of Biomedical Sciences for Health University of MilanMilan 20133Italy Inter-university laboratory of Human Movement Biology UJM-Saint-EtienneUniversitéde LyonSaint-Etienne 42023France Institut Universitaire de France(IUF) Paris 75231France

Purpose This study used downhill running as a model to investigate the repeated bout effect(RBE)on neuromuscular performance,running biomechanics,and metabolic cost of *** Ten healthy recreational male runners performed two 30-min bouts of downhill running(DR1 and DR2)at a-20%slope and 2.8 m/s 3 weeks *** fatigue,level running biomechanics during slow and fast running,and running economy parameters were recorded immediately before and after the downhill bouts,and at 24 h,48 h,72 h,96 h,and 168 h thereafter(i.e.,follow-up days).Results An RBE was confirmed by attenuated muscle soreness and serum creatine kinase rise after DR2 compared to *** RBE was also observed in maximum voluntary contraction(MVC)force loss and voluntary activation where DR2 resulted in attenuated MVC force loss and voluntary activation immediately after the run and during follow-up *** downhill running protocol significantly influenced level running biomechanics;an RBE was observed in which center of mass excursion and,therefore,lower-extremity compliance were greater during follow-up days after DR1 compared to *** observed changes in level running biomechanics did not influence the energy cost of *** This study demonstrated evidence of adaptation in neural drive as well as biomechanical changes with the RBE after *** higher neural drive resulted in attenuated MVC force loss after the second *** can be concluded that the RBE after downhill running manifests as changes to global and central fatigue parameters and running biomechanics without substantially altering the energy cost of running.

关键词： Cost of running Eccentric exercise Fatigue Muscle damage

Residual force enhancement in human skeletal muscles:A systematic review and meta-analysis

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2022年第1期11卷 94-103页

作者： Daiani de Campos Lucas B.R.Orssatto Gabriel S.Trajano Walter Herzog Heiliane de Brito Fontana Biomechanics laboratory Federal University of Santa CatarinaFlorianopolis 88040-001Brazil Faculty of Health School of Exercise and Nutrition SciencesQueensland University of TechnologyBrisbane QLD 4030Australia Human Performance laboratory Faculty of KinesiologyUniversity of CalgaryAB T2N 1N4Canada School of Biological Sciences Federal University of Santa CatarinaFlorianopolis 88040-900Brazil

Objective:We reviewed and appraised the existing evidence of in vivo manifestations of residual force enhancement in human skeletal muscles and assessed,through a meta-analysis,the effect of an immediate history of eccentric contraction on the subsequent torque capacity of voluntary and electrically evoked muscle ***:Our search was conducted from database inception to May *** information was extracted from,and quality was assessed for,45 ***-analyses and metaregressions were used to analyze residual torque enhancement and its dependence on the angular amplitude of the preceding eccentric ***:Procedures varied across studies with regards to muscle group tested,angular stretch amplitude,randomization of contractions,time window analyzed,and verbal *** capacity in isometric(constant muscle tendon unit length and joint angle)contractions preceded by an eccentric contraction was typically greater compared to purely isometric contractions,and this effect was greater for electrically evoked muscle contractions than voluntary *** torque enhancement differed across muscle groups for the voluntary contractions,with a significant enhancement in torque observed for the adductor pollicis,ankle dorsiflexors,ankle plantar flexors,and knee extensors,but not for the elbow and knee ***-regressions revealed that the angular amplitude of the eccentric contraction(normalized to the respective joints full range of motion)was not associated with the residual torque enhancement ***:There is evidence of residual torque enhancement for most,but not all,muscle groups,and residual torque enhancement is greater for electrically evoked than for voluntary *** to our hypothesis,and contrary to generally accepted findings on isolated muscle preparations,residual torque enhancement in voluntary and electrically evoked contractions does not seem to depend on the angular ampli

关键词： Cross-bridge theory Eccentric contraction Force-length relationship Isometric force Muscle properties

Does eccentric exercise stimulate sarcomerogenesis?

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2022年第1期11卷 40-42页

作者： Walter Herzog Heiliane de Brito Fontana Human Performance laboratory Faculty of KinesiologyUniversity of CalgaryAB T2N 1N4Canada Department of Morphological Sciences School of Biological SciencesFederal University of Santa CatarinaFlorianopolis88040-900Brazil

Eccentric exercise has been associated with an increase in serial sarcomere number in some studies,1 but not in others.2 Similarly,increasing excursion of muscles resulted in sarcomerogenesis in some studies using growing animals,3 but not in others using skeletally mature animals.4 However,chronic elongation and chronic shortening appears to be a strong regulator of sarcomere number increase5,6 and decrease,5,7 respectively,in animal *** an abundance of research on the regulation of sarcomerogenesis under a variety of conditions,the mechanisms underlying in series sarcomere number adaptations in skeletal muscles remain a puzzle,especially in non-invasive human studies where measurements of sarcomerogenesis following interventions have not been possible to date.

关键词： spite has exercise

Healthy aging:Cellular insights

在线全文

学校读者我要写书评

暂无评论

Journal of Sport and Health Science 2013年第2期2卷 65-66页

作者： Li Li Ji School of kinesiology Laboratory of Physiological Hygiene and Exercise ScienceUniversity of Minnesota111 Cooke Hall1900 University Avenue

Aging is a multifactorial process characterized by deteriorations of functional capacity of various organs and the whole body performance. Exogenous mechanism for aging includes onset and progress of various degenerative diseases, whereas intrinsic mechanism is governed by cellular events wherein catabolic processes exceed the capacity for repair and rejuvenation.

关键词：细胞老龄化健康老化机制退行性疾病器官功能代谢过程

A Mixed Reality System for Investigating Expert Characteristics on Recall of Situation Including Self-Motion

在线全文

学校读者我要写书评

暂无评论

Computer Technology and Application 2012年第4期3卷 283-288页

作者： Kazumoto Tanaka Pro Stergiou Larry Katz Department of Information and Systems Engineering Faculty of Engineering Kinki University Sport Technology Research laboratory Faculty of Kinesiology University of Calgary

To study recall accuracy of the offensive and defensive situations including movements of elite-athlete/novice oneself, a novel experimental system was developed where defensive actions were performed by the subject with a CG （Computer Graphics） player who presented predetermined offensive actions. Both the CG player＇s movements and subject＇s movements were reproduced by a video using mixed reality technology for recall examination. This system was also designed to rearrange the natural sequence of image frames resulting in a reproducible video in which the time relation of offense and defense was falsified. Displacement of timing in the false video was twofold; delayed from the truth or advanced from the truth. Using this two-video, true/false imagery method, the subject was asked to select the true video by recall; thus it became possible to examine the recall accuracy quantitatively by controlling the timing displacement. Results of the experiment using this system revealed that karate expert possessed a skill to recognize the time relation between the opponent＇s movement and one＇s own movement perceptually that was more developed than that of the novice. It was further identified that the expert as well as the novice recognized delayed displacement more accurately than they could recognize advanced displacement.

关键词： Mixed reality recall paradigm perceptual cognitive skill computer graphics displacement of timing.

Association of Body Composition and Aerobic Fitness on Heart Rate Variability and Recovery in Young-Adult Black Men

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

International Journal of Clinical Medicine 2013年第12期4卷 532-538页

作者： Michael R. Esco Robert L. Herron Stephen J. Carter Andrew A. Flatt Exercise Physiology laboratory Department of Kinesiology The University of Alabama Tuscaloosa USA Human Performance laboratory Department of Physical Education and Exercise Science Auburn University at Montgomery Montgomery USA

Background: The primary purpose of this investigation was to determine the differences in resting heart rate variability and heart rate recovery between norm-referenced aerobic fitness groupings, independent of body composition, in Black men. Additionally, we sought to clarify the independent relationships that heart rate variability and heart rate recovery displayed with maximal aerobic fitness and selected body composition measures. Methods: Body mass index, waist circumference, and the sum of skinfold thickness were determined in forty Black men (23 ± 3 years). Each subject assumed a supine position while heart rate variability was analyzed for 5-minute and recorded as normalized high-frequency power and normalized low-frequency power to normalized high frequency ratio. A graded exercise treadmill protocol was performed to attain maximal aerobic fitness. Heart rate recovery was recorded at 1- and 2-minute of a cool-down period. Heart rate variability and heart rate recovery were compared across two groups whose maximal aerobic fitness was either below or above the normative mean value for the age group of men. Results: The results indicated that heart rate variability was higher in the group whose maximal aerobic fitness was above the normative mean value compared with the lower fit group (p 0.05). Regression analysis revealed that the sum of skinfolds accounted for the variation in normalized high frequency power (R2 = 0.20, p < 0.05) and normalized low-frequency power to normalized high frequency ratio (R2 = 0.30, p < 0.05), while waist circumference accounted for the variation in heart rate recovery at 2-minute (R2 = 0.20, p Conclusion: The results suggest that heart rate variability and heart rate recovery hold independent relationships to body composition but not aerobic fitness in young-adult, Black men.

关键词： Skinfold Thickness Waist Circumference Cardiovascular Autonomic

Identification of lipid droplets in gut bacteria

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Protein & Cell 2023年第2期14卷 143-148页

作者： Kai Zhang Chang Zhou Zemin Li Xuehan Li Ziyun Zhou Linjia Cheng Ahmed Hammad Mirza Yumeng Shi Bingbing Chen Mengwei Zhang Liujuan Cui Congyan Zhang Taotao Wei Xuelin Zhang Shuyan Zhang Pingsheng Liu National laboratory of Biomacromolecules CAS Center for Excellence in BiomacromoleculesInstitute of BiophysicsChinese Academy of SciencesBeijing 100101China School of kinesiology and Health Capital University of Physical Education and SportsBeijing 100191China University of Chinese Academy of Sciences Beijing 100049China Hebei Normal University Shijiazhuang 050024China Hainan University Haikou 570228China

Dear Editor,The field of gut microbiota is progressing rapidly and thus,appellations like the last human organ,a separate organ,a forgotten organ,and a new organ have been applied to gut microbiota to emphasize its vital functions in our body(Chang and Kao,2019).Gut microbiota has been shown to play a central role in the regulation of human lipid metabolism and be associated with lipid metabolism disorders when aberrant,through composition and microbial metabolites.

关键词： metabolism gut vital