Impact of stage-specific limb function exercises guided by a selfmanagement education model on arteriovenous fistula maturation status

BACKGROUND The exercise of limb function is the most economical and safe method to promote the maturation of arteriovenous fistula(AVF).However,due to the lack of a uni-fied exercise standard in China,many patients have insufficient awareness of the importance of AVF,leading to poor effectiveness of limb function exercise.The self-management education model can effectively promote patients to take pro-active health-related actions.This study focuses on the characteristics of patients during the peri-AVF period and conducts a phased limb function exercise under the guidance of the self-management education model to observe changes in fac-tors such as the maturity of AVF.AIM To assess the impact of stage-specific limb function exercises,directed by a self-management education model,on the maturation status of AVFs.METHODS This study is a randomized controlled trial involving 74 patients with forearm AVFs from the Nephrology Department of a tertiary hospital in Sichuan Province,China.Patients were randomly divided into an observation group and a control group using a random number table method.The observation group underwent tailored stage-specific limb func-tion exercises,informed by a self-management education model which took into account the unique features of AVF at various stages,in conjunction with routine care.Conversely,the control group was given standard limb function exercises along with routine care.The assessment involves the maturity of AVFs post-intervention,post-operative complications,and the self-management level of the fistula in both groups patients.Analyses were conducted using SPSS version 23.0.Count data were represented by frequency and percentage and subjected to chi-square test comparisons.Measurement data adhering to a normal distribution were presented as mean±SD.The independent samples t-test was utilized for inter-group comparisons,while the paired t-test was used for intra-group comparisons.For measurement data not fitting a normal distribution,the median and interquartile range were presented and analyzed using the Wilcoxon rank sum test.RESULTS At the 8-wk postoperative mark,the observation group demonstrated significantly higher scores in AVF symptom recognition,symptom prevention,and self-management compared to the control group(P<0.05).However,the variance in symptom management scores between the observation and control groups lacked statistical signi-ficance(P>0.05).At 4 wk after the operation,the observation group displayed a superior vessel diameter and depth from the skin of the drainage vessels in comparison to the control group(P<0.05).While the observation group did manifest elevated blood flow rates in the drainage vessels relative to the control group,this distinction was not statistically significant(P>0.05).By the 8-wk postoperative interval,the observation group outperformed the control group with notable enhancements in blood flow rates,vessel diameter,and depth from the skin of drainage vessels(P<0.01).Seven days following the procedure,the observation group manifested significantly diminished limb swelling and an overall reduced complication rate in contrast to the control group(P<0.05).The evaluation of infection,thrombosis,embolism,arterial aneurysm stenosis,and incision bleeding showed no notable differences between the two groups(P>0.05).By the 4-wk postoperative juncture,complications between the observation and control groups were statistically indistinguishable(P>0.05).CONCLUSION Stage-specific limb function exercises,under the guidance of a self-management education model,amplify the capacity of AVF patients to discern and prevent symptoms.Additionally,they expedite AVF maturation and miti-gate postoperative limb edema,underscoring their efficacy as a valuable method for the care and upkeep of AVF in hemodialysis patients.

Standardization of exercise intensity and consideration of a dose-response is essential.Commentary on "Exercise-linked FNDC5/irisin rescues synaptic plasticity and memory defects in Alzheimer’s models”,by Lourenco et al.,published 2019 in Nature Medicine

Over the past decade,several biochemical pathways have been investigated to understand the underlying mechanisms involved in the beneficial effects of physical exercise on cognition.1,2 Lourenco et al.,3 in an elegant study published in Nature Medicine,examined the relationship between exercise training and hippocampal memory function.Mechanistically,the authors showed that FNDC5/irisin is an important mediator of beneficial effects of physical exercise in a mouse model of Alzheimer's disease.

Critical Exercise Price for American Floating Strike Lookback Option in a Mixed Jump-Diffusion Model

This paper studies the critical exercise price of American floating strike lookback options under the mixed jump-diffusion model. By using It formula and Wick-It-Skorohod integral, a new market pricing model established under the environment of mixed jumpdiffusion fractional Brownian motion. The fundamental solutions of stochastic parabolic partial differential equations are estimated under the condition of Merton assumptions. The explicit integral representation of early exercise premium and the critical exercise price are also given, then the American floating strike lookback options factorization formula is obtained, the results is generalized the classical Black-Scholes market pricing model.

The Analysis of Wall Shear Stress Modulated by Acute Exercise in the Human Common Carotid Artery with an Elastic Tube Model

Assessment of the magnitude and pattern of wall shear stress(WSS)in vivo is the prerequisite for studying the quantitative relationship between exercise-induced WSS and arterial endothelial function.In the previous studies,the calculation of the WSS modulated by exercise training was primarily based upon the rigid tube model,which did not take non-linear effects of vessel elastic deformation into consideration.In this study,with an elastic tube model,we estimated the effect of a bout of 30-minute acute cycling exercise on the WSS and the flow rate in the common carotid artery according to the measured inner diameter,center-line blood flow velocity,heart rates and the brachial blood pressures before and after exercise training.Furthermore,the roles of exerciseinduced arterial diameter and blood flow rate in the change of WSS were also determined.The numerical results demonstrate that acute exercise significantly increases the magnitudes of blood flow rate and WSS.Moreover,the vessel elastic deformation is a non-negligible factor in the calculation of the WSS induced by exercise,which generates greater effects on the minimum WSS than the maximum WSS.Additionally,the contributions of exercise-induced variations in blood flow rate and diameter are almost identical in the change of the mean WSS.

A Bifactor Analysis Approach to Construct Validity and Reliability of the Affective Exercise Experience Questionnaire among Chinese College Students

Affective exercise experience as an emerging theoretical concept has great potential to provide a more nuanced understanding of individual factors that influence exercise behavior.However,concerning the Affective Exercise Experiences(AFFEXX)questionnaire,it has not been examined yet whether the structural score of the AFFEXX is a useful index to predict physical activity(refers to any bodily movement produced by skeletal muscles that requires energy expenditure).Furthermore,there is currently a gap in knowledge regarding the psychological mechanisms that can explain the relationship between affective exercise experiences and the level of physical activity(PA).In order to adress these gaps in the literature,we conducted two studies among Chinese collge students that aimed(i)to investigated whether the total score of the three AFFEXX-C constructs(antecedent appraisals,core affective exercise experiences,and attraction-antipathy towards exercise)is a relaible indicator that can be utilized in research and pratical settings and(ii)to evalute the specific psychological mechanisms that can explain the relationship between affective exercise experience and PA.In Study 1,we recruited 801 voluntary Chinese college students for bifactor and correlational analyses.In Study 2,875 Chinese college students were enrolled to verify our findings from Study 1 and to explore the aforementioned mechanism.Results from the bifactor analyses supported our hypothesis that the total scores of the three AFFEXX-C constructs can be used among Chinese college students to establish a link with PA.Additionally,our results suggested that core affective exercise experiences and attraction-antipathy mediated the relationship between antecedent appraisals and the level of moderate-to-vigorous intensity PA.Therefore,measuring affective exercise experiences using the AFFEXX-C,specifically the total scores of each individual construct may be a useful approach to predict future PA levels.

Development and evaluation of the health belief model scale for exercise

Objectives:This study was aimed to develop a health belief model scale for exercise among Chinese residents to describe the relationships between health beliefs and exercise for promoting residents to adopt or maintain exercise programs.Methods:Participants were from two projects,Project 1 with 3833 participants and Project 2 with 7319 participants.A pool of 21 items was developed based on a small-scale qualitative study about health beliefs of exercise and literature.Internal consistency and construct validity of the scale were evaluated with Cronbach'sαcoefficient,exploratory factor analysis(EFA),confirmatory factor analysis(CFA)and second-order confirmatory factor analysis.Results:A final version of 18 items loaded on six factors which could explain 60.30-%of variance was observed after EFA.The internal consistency of the final version with 18 items performed in Project 1 was acceptable(0.609).The reliability of the six subscales was good with Cronbach'sαcoefficient of 0.628,0.713,0.628,0.801,0.676 and 0.838 for perceived benefits,perceived objective barriers,perceived subjective barriers,self-efficacy,perceived severity and cues to action,respectively.CFA and second-order CFA indicated a good fit to data.Conclusions:The Health Belief Model Scale for Exercise(HBMS-E)is a valid and reliable instrument to assess health beliefs of exercise among residents in China.Understanding the health beliefs of exercise will help health professionals to develop effective interventions for health and evaluate the effectiveness.

Effects of exercise on brain functions in diabetic animal models

Human life span has dramatically increased over several decades,and the quality of life has been considered to be equally important.However,diabetes mellitus(DM) characterized by problems related to insulin secretion and recognition has become a serious health problem in recent years that threatens human health by causing decline in brain functions and finally leading to neurodegenerative diseases.Exercise is recognized as an effective therapy for DM without medication administration.Exercise studiesusing experimental animals are a suitable option to overcome this drawback,and animal studies have improved continuously according to the needs of the experimenters.Since brain health is the most significant factor in human life,it is very important to assess brain functions according to the different exercise conditions using experimental animal models.Generally,there are two types of DM; insulin-dependent type 1 DM and an insulin-independent type 2 DM(T2DM); however,the author will mostly discuss brain functions in T2 DM animal models in this review.Additionally,many physiopathologic alterations are caused in the brain by DM such as increased adiposity,inflammation,hormonal dysregulation,uncontrolled hyperphagia,insulin and leptin resistance,and dysregulation of neurotransmitters and declined neurogenesis in the hippocampus and we describe how exercise corrects these alterations in animal models.The results of changes in the brain environment differ according to voluntary,involuntary running exercises and resistance exercise,and gender in the animal studies.These factors have been mentioned in this review,and this review will be a good reference for studying how exercise can be used with therapy for treating DM.

Early exercise premium method for pricing American options under the J-model

Background:This study develops a new model called J-am for pricing American options and for determining the related early exercise boundary(EEB).This model is based on a closed-form solution J-formula for pricing European options,defined in the study by Jerbi(Quantitative Finance,15:2041-2052,2015).The J-am pricing formula is a solution of the Black&Scholes(BS)PDE with an additional function called f as a second member and with limit conditions adapted to the American option context.The aforesaid function f represents the cash flows resulting from an early exercise of the option.Methods:This study develops the theoretical formulas of the early exercise premium value related to three American option pricing models called J-am,BS-am,and Heston-am models.These three models are based on the J-formula by Jerbi(Quantitative Finance,15:2041-2052,2015),BS model,and Heston(Rev Financ Stud,6:327-343,1993)model,respectively.This study performs a general algorithm leading to the EEB and to the American option price for the three models.Results:After implementing the algorithms,we compare the three aforesaid models in terms of pricing and the EEB curve.In particular,we examine the equivalence between J-am and Heston-am as an extension of the equivalence studied by Jerbi(Quantitative Finance,15:2041-2052,2015).This equivalence is interesting since it can reduce a bi-dimensional model to an equivalent uni-dimensional model.Conclusions:We deduce that our model J-am exactly fits the Heston-am one for certain parameters values to be optimized and that all the theoretical results conform with the empirical studies.The required CPU time to compute the solution is significantly less in the case of the J-am model compared with to the Heston-am model.

Oxygen uptake response to switching stairs exercise by non-parametric modeling

Oxygen uptake plays a crucial role in the evaluation of endurance performance during exercise and is extensively utilized for metabolic assessment. This study records the oxygen uptake during the exercise phase (i.e., ascending or descending) of the stair exercise, utilizing an experimental dataset that includes ten participants and covers various exercise periods. Based on the designed experiment protocol, a non-parametric modeling method with kernel-based regularization is generally applied to estimate the oxygen uptake changes during the switching stairs exercise, which closely resembles daily life activities. The modeling results indicate the effectiveness of the non-parametric modeling approach when compared to fixed-order models in terms of accuracy, stability, and compatibility. The influence of exercise duration on estimated fitness reveals that the model of the phase-oxygen uptake system is not time-invariant related to respiratory metabolism regulation and muscle fatigue. Consequently, it allows us to study the humans’ conversion mechanism at different metabolic rates and facilitates the standardization and development of exercise prescriptions.

Animal exercise studies in cardiovascular research:Current knowledge and optimal design--A position paper of the Committee on Cardiac Rehabilitation,Chinese Medical Doctors’Association

Growing evidence has demonstrated exercise as an effective way to promote cardiovascular health and protect against cardiovascular diseases However,the underlying mechanisms of the beneficial effects of exercise have yet to be elucidated.Animal exercise studies are widely used to investigate the key mechanisms of exercise-induced cardiovascular protection.However,standardized procedures and well-established evaluation indicators for animal exercise models are needed to guide researchers in carrying out effective,high-quality animal studies using exercise to prevent and treat cardiovascular diseases.In our review,we present the commonly used animal exercise models in cardiovascular research and propose a set of standard procedures for exercise training,emphasizing the appropriate measurements and analysis in these chronic exercise models.We also provide recommendations for optimal design of animal exercise studies in cardiovascular research,including the choice of exercise models,control of exercise protocols,exercise at different stages of disease,and other considerations,such as age,sex,and genetic background.We hope that this position paper will promote basic research on exercise-induced cardiovascular protection and pave the way for successful translation of exercise studies from bench to bedside in the prevention and treatment of cardiovascular diseases.

Liver Histology after Chronic Use of Alcohol and Exercise Training in Rats

Objectives： To investigate the effects of physical training on the liver morphology and morphometry after chronic use of alcohol in rats. Methods： Twenty-four Wistar rats were housed in cages with controlled environment and randomly divided into four groups according to treatment received. In the initial treatment, alcohol was administered to SA （sedentary alcohol） and EA （exercise alcohol） groups. After four weeks, physical training program was held on a treadmill with EA and EC （exercise control） groups. Area, perimeter, maximum and minimum diameter and form factor of nucleus and cytoplasm of hepatocytes were analyzed. Key findings： Micro-vesicular fatty degeneration, predominantly pericentrolobular, of mild to moderate intensity, was found especially in animals treated with alcohol. EC group showed nucleus area greater than the nucleus area of EA and SA groups. The form factor was lower in the EC group than in the EA group. EA group showed maximum cytoplasm diameter is smaller than in SC （sedentary control） group. Conclusions： Physical training for two weeks was not enough to suppress histopathologic changes in the liver caused by chronic use of alcohol in rats. Chronic use of alcohol seems to have minimized the beneficial effect of physical training in the nucleus area of hepatocytes.

啦啦操阿拉C杠难度动作的力学原理及其应用

阿拉C杠属于啦啦操转体类难度,在啦啦操成套动作中有着至关重要的地位。为探明阿拉C杠的力学原理,为其训练方法和评价标准提供科学依据,本文以机器人学理论为基础建立了阿拉C杠运动过程的人体模型,并对运动过程进行了运动规划和运动学仿真。然后应用拉格朗日方程建立了阿拉C杠动作的动力学模型,针对一种理想的运动状态对阿拉C杠运动过程中人体各主要关节的驱动力进行了分析。最后,根据动力学仿真结果对比了双臂开合、单臂开合和大小T三种手部动作对身体各关节驱动力的影响。分析结果表明,动力腿是阿拉C杠动作的主要动力来源,动力腿髋关节的驱动力不受手部动作的影响。在双臂开合、单臂开合和大小T三种手部动作中,大小T需要的关节驱动力最小。本文为阿拉C杠的训练与评价提供了理论依据,可供练习者在训练过程中参考使用。

PAC心理弹性理论模型联合运动康复训练对老年原发性高血压患者的影响

目的:探讨PAC心理弹性理论模型联合运动康复训练对老年原发性高血压患者的影响。方法:选取2022年1月—2023年1月于厦门大学附属第一医院就诊的98例老年原发性高血压患者,利用掷硬币法分为研究组与对照组,各49例。对照组采用常规健康教育,研究组在常规健康教育基础上给予PAC心理弹性理论模型联合运动康复训练。评价两组干预前后的血压水平、治疗依从性、心理状态、知觉压力和生活质量。结果:干预前,两组血压水平、心理状态和知觉压力及生活质量比较,差异无统计学意义(P>0.05);干预后,研究组血压水平、心理状态评分和知觉压力评分低于对照组,治疗依从性总分和生活质量评分高于对照组,差异有统计学意义(P<0.05)。结论:PAC心理弹性理论模型联合运动康复训练可降低老年原发性高血压患者的血压水平和知觉压力,调节心理状态,提高治疗依从性和生活质量。

基于IMB模型的运动干预对妊娠期糖尿病孕妇血糖控制、自我管理能力及妊娠结局的影响

目的:探讨基于信息-动机-行为技巧模型(IMB模型)的运动干预对妊娠期糖尿病(GDM)孕妇血糖控制、自我管理能力及妊娠结局的影响。方法:将100例GDM患者根据干预方式的不同分为两组,予以常规运动干预的为对照组(n=50);予以基于IMB模型运动干预的为观察组(n=50)。两组均干预4周。比较两组干预前后GDM运动知、信、行水平[GDM运动知识-态度-行为问卷]、自我管理能力[孕妇自我保健管理评定问卷]、血糖水平[空腹血糖(FPG)、糖化血红蛋白(HbAlc)水平,餐后2 h血糖(2 hPG)],随访至患者分娩,比较两组患者血糖控制不佳入院率、孕期体重增长超标、分娩后口服葡萄糖耐量试验(OGTT)不达标率及妊娠结局。结果:相较于对照组,干预后,观察组GDM运动知识、态度及行为评分均更高(P<0.05);孕妇自我保健管理评定问卷总分及各维度评分均更高(P<0.05);观察组FBG、2 hPG及HbA1c均更低(P<0.05),血糖控制不佳入院、孕期体重增长超标及分娩后OGTT不达标总发生率均更低(P<0.05)。观察组患者妊娠不良结局总发生率均低于对照组(P<0.05)。结论:基于IMB模型的运动干预可提高GDM患者运动知、信、行水平及自我管理能力,有效控制患者血糖,改善母婴结局。

健身运动知识表达与智能查询系统构建

科学健身运动在促进大众体质健康、心理健康等方面均发挥着重要作用。在数智时代背景下,健身运动知识的智能查询与精准查询成为延伸全民健身公共服务供给,提高全民健身公共服务质量的重要环节。鉴于此,通过知识图谱与大语言模型的协同互补,探索构建知识图谱驱动的健身运动知识智能查询系统,提出涵盖知识抽取与表达、知识整合与管理、知识查询与问答于一体的实施方案,进而为实现精准化健身运动知识智能查询的研究与应用提供参考。

基于ARCS激励模型的老年健步走运动产品设计研究

为提高老年群体参与健步走运动锻炼的积极性,文章从运动激励的角度出发开展老年健步走运动相关的产品设计研究,并利用计算机化行为研究的E-Prime软件,建立SAM情绪测试实验程序。同时,通过对实验所得的情感体验数据进行单因素方差分析,证实引入ARCS模型的健步走运动对于激发老年人积极情绪价值的有效性,并得出ARCS模型激励要素的优先性,基于此提出老年健步走产品设计的策略,以期为老年运动相关产品设计提供新的思路。

运动手环结合IMB模型宣教在慢性心力衰竭患者中的应用

目的探究运动手环监测结合IMB健康宣教在促进CHF患者运动依从性中的应用价值。方法选取2021年4月-2023年3月于本院治疗的CHF患者80例,将所有患者按随机数字表法平均分为对照组与观察组,其中对照组(n=40)采用IMB模型健康宣教干预,观察组(n=40)采用运动手环监测结合IMB模型健康宣教干预。比较2组干预前、后运动依从性、运动耐力、ABI水平。结果干预前2组依从性、6min步行距离、ABI比较,差异无统计学意义(P>0.05);干预后,观察组高度依从率高于对照组,6min步行距离、ABI水平高于对照组,差异均有统计学意义(P<0.05)。结论运动手环监测结合IMB模型健康宣教在提升CHF患者运动依从性和运动能力方面具有一定积极意义。

综合运动护理模式对宫颈癌化疗患者睡眠质量和依从性的影响

目的分析综合运动护理模式应用于宫颈癌化疗患者中的作用。方法选取78例宫颈癌患者,按照随机数字表法分为对照组与观察组,每组39例。对照组给予常规护理,观察组给予综合运动护理模式,比较两组护理效果。结果干预后观察组治疗依从性评分较对照组高,焦虑、抑郁评分较对照组低,差异有统计学意义(P<0.05)。干预后观察组患者睡眠质量总分较对照组低,差异有统计学意义(P<0.05)。结论宫颈癌患者化疗期间,实施综合运动护理模式可有效提高其治疗依从性,同时改善睡眠质量。

5E教学模式结合Mini-CEX在护理综合实训中的应用

目的探讨5E教学模式结合Mini-CEX评价法在护理综合实训课程中的应用效果。方法将2018级护理1班(n=71)作为干预组,护理2班(n=69)作为对照组。对照组进行传统教学,干预组采用5E教学模式结合Mini-CEX评价法。课程结束后,比较两组Mini-CEX评分、技能操作成绩、自主学习能力及对课程评价情况。结果教学后干预组Mini-CEX评分、技能操作成绩及自主学习能力明显高于对照组,对教学效果的评价也较高。结论5E教学模式结合Mini-CEX评价法应用于护理综合实训,能有效提高护生自主学习能力、技能水平及综合能力。

多形式健康教育模式联合简易呼吸功能锻炼对老年肺癌放疗病人癌因性疲乏及遵医行为的影响

目的 探究老年肺癌放疗病人接受多形式健康教育模式联合简易呼吸功能锻炼的效果。方法 选取本院于2021年3月至2023年9月收治的60例肺癌放疗病人进行前瞻性研究,按照随机数表法分为研究组(30例)与对照组(30例),对照组接受常规护理干预,研究组接受多形式健康教育模式联合简易呼吸功能锻炼干预,比较2组干预前后癌因性疲乏[Piper疲乏量表(PFS)评分]、生活质量[生活质量核心问卷(QLQ-C30)评分]、呼吸功能[呼出气一氧化氮(FeNO)、呼吸频率及氧合指数]、遵医行为、护理满意度(病人护理需求及满意程度调查表)情况。结果 干预前,2组PFS、QLQ-C30评分,FeNO、呼吸频率、氧合指数水平比较,差异无统计学意义(P>0.05);干预后,2组上述指标均有改善,差异有统计学意义(P<0.05),且研究组PFS评分、FeNO水平和呼吸频率低于对照组,QLQ-C30评分和氧合指数高于对照组,差异有统计学意义(P<0.05);护理期间,研究组的遵医率及护理干预满意度评分均高于对照组,差异有统计学意义(P<0.05)。结论 对老年肺癌放疗病人采取多形式健康教育模式联合简易呼吸功能锻炼干预,能够显著改善其癌因性疲乏,提高老年病人遵医性与生活质量,提升其对护理干预的满意度,具有较好的临床应用价值。