Objective:Systematically evaluate the rehabilitation effect of high-intensity intermittent exercise(HIIT)on cardiovascular function in stroke patients,in order to provide a basis for selecting the best rehabilitation ...Objective:Systematically evaluate the rehabilitation effect of high-intensity intermittent exercise(HIIT)on cardiovascular function in stroke patients,in order to provide a basis for selecting the best rehabilitation plan for stroke patients.Methods:Computer retrieval of CNKI,WanFang Data,VIP,CBM,Pubmed,EMbase,Web of science,The Cochrane Library databases was conducted from the establishment of the database until March 2023.Randomized controlled trials on HIIT improving cardiovascular function in stroke patients were included,and the included literature was screened,data extracted,and bias risk evaluated.Then,metaanalysis was conducted using RevMan 5.4 software and Stata17.0 software.Results:In the end,9 articles met the research criteria,with a total of 428 patients.The meta-analysis results showed that compared with the control group,HIIT had significant effects on peak oxygen uptake(VO2peak)[MD=3.87,95%CI(3.43,4.31),P<0.00001],minute ventilation(VE)[MD=7.14,95%CI(4.34,9.94),P<0.00001],peak power(WRpeak)[MD=17.13,95%CI(13.7320.54),P<0.00001],6-minute walking distance(6MWD)[MD=43.82,95%CI(16.08,71.56),P=0.002],The intervention effect of the 10 meter walking test(10MWT)[MD=-2.00,95%CI(-2.91,-1.08),P<0.0001]was better than that of the control group.Conclusion:The current analysis results show that compared to conventional rehabilitation therapy or continuous aerobic exercise,HIIT has more advantages in improving the cardiopulmonary function of stroke patients.展开更多
Self-selected exercise intensity can be a useful exercise prescription tool for older adults;however, it is not known if it can elicit improvements in walking and aerobic capacity. In older adults, effects of concentr...Self-selected exercise intensity can be a useful exercise prescription tool for older adults;however, it is not known if it can elicit improvements in walking and aerobic capacity. In older adults, effects of concentric or eccentric endurance exercise at self-selected walking speed were examined on 1-mile indoor walk performance, predicted maximum oxygen uptake and physiological parameters. Twenty-four older adults (67 ± 4 years) completed 3 × 30 min treadmill walks per week for 12-weeks on level (LTW, n = 11, 0%) or downhill (DTW, n = 13, ﹣10%) treadmill gradient at a self- selected speed, which progressed every 4 weeks. Maximal oxygen uptake was predicted using a 1-mile walk at 4-week intervals with physiological responses recorded using a portable metabolic system. One-mile walking speed increased from baseline following 8- and 12-weeks (12 weeks: LTW: 13% ± 6%, DTW: 14% ± 9%,展开更多
Aerobic capacity, which is expressed as peak oxygen consumption (VO2peak), is well-known to be an independent predictor of all-cause mortality and cardiovascular prognosis. This is true even for people with various co...Aerobic capacity, which is expressed as peak oxygen consumption (VO2peak), is well-known to be an independent predictor of all-cause mortality and cardiovascular prognosis. This is true even for people with various coronary risk factors and cardiovascular diseases. Although exercise training is the best method to improve VO2peak, the guidelines of most academic societies recommend 150 or 75 min of moderate- or vigorous- intensity physical activities, respectively, every week to gain health benefits. For general health and primary and secondary cardiovascular prevention, high-intensity interval training (HIIT) has been recognized as an efficient exercise protocol with short exercise sessions. Given the availability of the numerous HIIT protocols, which can be classified into aerobic HIIT and anaerobic HIIT [usually called sprint interval training (SIT)], professionals in health-related fields, including primary physicians and cardiologists, may find it confusing when trying to select an appropriate protocol for their patients. This review describes the classifications of aerobic HIIT and SIT, and their differences in terms of effects, target subjects, adaptability, working mechanisms, and safety. Understanding the HIIT protocols and adopting the correct type for each subject would lead to better improvements in VO2peak with higher adherence and less risk.展开更多
Background：People experiencing strong feelings of fatigue during exercise sometimes subconsciously yell to refocus their efforts and,thus,maintain exercise performance.The present study examined the influenc of yelli...Background：People experiencing strong feelings of fatigue during exercise sometimes subconsciously yell to refocus their efforts and,thus,maintain exercise performance.The present study examined the influenc of yelling during high-intensity exercise by analysing cardiorespiratory reactions and integrated electromyography（i EMG） changes in the vastus lateralis during a cycle ergometer test.Methods：A total of 23 moderately trained people were recruited.The cycling test began with a resistance of 25 W/min,which was gradually increased.During the experimental trial,the participants were required to yell at least 3 times when they felt exhausted;during the controlled trial,they were not allowed to produce any yelling sounds.The testing order was randomly assigned and the 2 trials were completed within an interval between 3–10 days.Two-way repeated measures ANOVA was applied to analyse the differences within and between the trials,and interaction of trial and time.Results：The peak power and time to exhaustion（p〈0.01） in the yelling trial were higher than those in the control trial.However,the vastus lateralis iE MG values of both trials at peak power were not significant y different.During the yelling period at 90%–100% of the maximal effort,a significan time-by-trialinteraction（p〈0.05）wasobservedinoxygenconsumption（VO2）,CO2 production,O2 pulse,ventilation,andrespiratoryrate. Alltheabove measures showed a significan between-trial difference（p〈0.02）.However,heart rate,respiratory exchange ratio,end-tidal oxygen pressure,and ventilatory equivalent for oxygen showed only significan between-trial difference（p〈0.05）,but without interaction of trial and time.Conclusion：Yelling enhances the peak O2 pulse and VO2 and maintains CO2-exclusion efficien y during high-intensity exercise.It may enable maintaining muscle activation without stronger EMG signals being required during high-intensity exercise.展开更多
目的:探讨“三低三不”饮食原则联合高强度间歇有氧运动对老年糖尿病伴高脂血症患者的影响。方法:选取2022年8月—2023年8月厦门大学附属第一医院收治的102例老年糖尿病伴高脂血症患者。随机将其分为对照组与观察组,各51例。对照组给予...目的:探讨“三低三不”饮食原则联合高强度间歇有氧运动对老年糖尿病伴高脂血症患者的影响。方法:选取2022年8月—2023年8月厦门大学附属第一医院收治的102例老年糖尿病伴高脂血症患者。随机将其分为对照组与观察组,各51例。对照组给予“三低三不”饮食原则联合中低强度持续有氧运动,观察组给予“三低三不”饮食原则联合高强度间歇有氧运动。比较两组干预前后的血糖指标、血脂指标、体格指标、血管内皮功能指标。结果:干预后,两组空腹血糖(FBG)、餐后2 h血糖(2 h PG)均低于干预前,观察组FBG、2 h PG均低于对照组,差异有统计学意义(P<0.05)。干预后,两组总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(lLDL-C)均低于干预前,HDL-C高于干预前,观察组TC、TG、LDL-C均低于对照组,HDL-C高于对照组,差异有统计学意义(P<0.05)。干预后,两组体重、体重指数及腰围均低于干预前,观察组体重、体重指数及腰围均低于对照组,差异有统计学意义(P<0.05)。干预后,两组内皮素(ET-1)低于干预前,一氧化氮(NO)高于干预前,观察组ET-1低于对照组,NO高于对照组,差异有统计学意义(P<0.05)。结论:“三低三不”饮食原则联合高强度间歇有氧运动能够降低老年糖尿病伴高脂血症患者的血糖血脂水平,降低其体格指标,改善其血管内皮功能。展开更多
Objective:We aim to investigate the effects of different exercise intensities and volumes on Phlegm-dampness constitution(PDC).Methods:The rats were fed with high-fat food and lived in 75%–85%humidity for 6 weeks to ...Objective:We aim to investigate the effects of different exercise intensities and volumes on Phlegm-dampness constitution(PDC).Methods:The rats were fed with high-fat food and lived in 75%–85%humidity for 6 weeks to establish the model of PDC.Then PDC rats were screened and intervened by varying exercise intensities for 8 weeks.Weight,constitution scores,blood and liver tissues were collected to detect the concentration of serum total cholesterol(Tch),triglyceride(TG),low-density lipoprotein cholesterol(LDL-C),high-density lipoprotein cholesterol(HDL-C),homocysteine(Hcy),blood glucose(GLU),alanine transaminase(ALT)and percentage of lipid droplet area in liver tissue(PLDA).Results:The weight,Tch,TG,HDL-C,LDL-C,Hcy,GLU,and ALT of rats in moderate-intensity exercise group returned to normal.The rats with high-intensity or low-intensity exercise did not recover as well as moderate-intensity.Conclusion:Different exercise intensities and volumes have different effects on PDC,moderate-intensity exercise over an 8-week intervention is most appropriate.展开更多
基金Beijing Hospital Management Center Youth Talent Training"Young Seedlings"Program(No.QML20212201)。
文摘Objective:Systematically evaluate the rehabilitation effect of high-intensity intermittent exercise(HIIT)on cardiovascular function in stroke patients,in order to provide a basis for selecting the best rehabilitation plan for stroke patients.Methods:Computer retrieval of CNKI,WanFang Data,VIP,CBM,Pubmed,EMbase,Web of science,The Cochrane Library databases was conducted from the establishment of the database until March 2023.Randomized controlled trials on HIIT improving cardiovascular function in stroke patients were included,and the included literature was screened,data extracted,and bias risk evaluated.Then,metaanalysis was conducted using RevMan 5.4 software and Stata17.0 software.Results:In the end,9 articles met the research criteria,with a total of 428 patients.The meta-analysis results showed that compared with the control group,HIIT had significant effects on peak oxygen uptake(VO2peak)[MD=3.87,95%CI(3.43,4.31),P<0.00001],minute ventilation(VE)[MD=7.14,95%CI(4.34,9.94),P<0.00001],peak power(WRpeak)[MD=17.13,95%CI(13.7320.54),P<0.00001],6-minute walking distance(6MWD)[MD=43.82,95%CI(16.08,71.56),P=0.002],The intervention effect of the 10 meter walking test(10MWT)[MD=-2.00,95%CI(-2.91,-1.08),P<0.0001]was better than that of the control group.Conclusion:The current analysis results show that compared to conventional rehabilitation therapy or continuous aerobic exercise,HIIT has more advantages in improving the cardiopulmonary function of stroke patients.
文摘Self-selected exercise intensity can be a useful exercise prescription tool for older adults;however, it is not known if it can elicit improvements in walking and aerobic capacity. In older adults, effects of concentric or eccentric endurance exercise at self-selected walking speed were examined on 1-mile indoor walk performance, predicted maximum oxygen uptake and physiological parameters. Twenty-four older adults (67 ± 4 years) completed 3 × 30 min treadmill walks per week for 12-weeks on level (LTW, n = 11, 0%) or downhill (DTW, n = 13, ﹣10%) treadmill gradient at a self- selected speed, which progressed every 4 weeks. Maximal oxygen uptake was predicted using a 1-mile walk at 4-week intervals with physiological responses recorded using a portable metabolic system. One-mile walking speed increased from baseline following 8- and 12-weeks (12 weeks: LTW: 13% ± 6%, DTW: 14% ± 9%,
文摘Aerobic capacity, which is expressed as peak oxygen consumption (VO2peak), is well-known to be an independent predictor of all-cause mortality and cardiovascular prognosis. This is true even for people with various coronary risk factors and cardiovascular diseases. Although exercise training is the best method to improve VO2peak, the guidelines of most academic societies recommend 150 or 75 min of moderate- or vigorous- intensity physical activities, respectively, every week to gain health benefits. For general health and primary and secondary cardiovascular prevention, high-intensity interval training (HIIT) has been recognized as an efficient exercise protocol with short exercise sessions. Given the availability of the numerous HIIT protocols, which can be classified into aerobic HIIT and anaerobic HIIT [usually called sprint interval training (SIT)], professionals in health-related fields, including primary physicians and cardiologists, may find it confusing when trying to select an appropriate protocol for their patients. This review describes the classifications of aerobic HIIT and SIT, and their differences in terms of effects, target subjects, adaptability, working mechanisms, and safety. Understanding the HIIT protocols and adopting the correct type for each subject would lead to better improvements in VO2peak with higher adherence and less risk.
基金supported by a Grant-in-Aid for Scientifi Research (ISU99-04-03) from I-Shou University,Kaohsiung,Taiwan,China
文摘Background：People experiencing strong feelings of fatigue during exercise sometimes subconsciously yell to refocus their efforts and,thus,maintain exercise performance.The present study examined the influenc of yelling during high-intensity exercise by analysing cardiorespiratory reactions and integrated electromyography（i EMG） changes in the vastus lateralis during a cycle ergometer test.Methods：A total of 23 moderately trained people were recruited.The cycling test began with a resistance of 25 W/min,which was gradually increased.During the experimental trial,the participants were required to yell at least 3 times when they felt exhausted;during the controlled trial,they were not allowed to produce any yelling sounds.The testing order was randomly assigned and the 2 trials were completed within an interval between 3–10 days.Two-way repeated measures ANOVA was applied to analyse the differences within and between the trials,and interaction of trial and time.Results：The peak power and time to exhaustion（p〈0.01） in the yelling trial were higher than those in the control trial.However,the vastus lateralis iE MG values of both trials at peak power were not significant y different.During the yelling period at 90%–100% of the maximal effort,a significan time-by-trialinteraction（p〈0.05）wasobservedinoxygenconsumption（VO2）,CO2 production,O2 pulse,ventilation,andrespiratoryrate. Alltheabove measures showed a significan between-trial difference（p〈0.02）.However,heart rate,respiratory exchange ratio,end-tidal oxygen pressure,and ventilatory equivalent for oxygen showed only significan between-trial difference（p〈0.05）,but without interaction of trial and time.Conclusion：Yelling enhances the peak O2 pulse and VO2 and maintains CO2-exclusion efficien y during high-intensity exercise.It may enable maintaining muscle activation without stronger EMG signals being required during high-intensity exercise.
文摘目的:探讨“三低三不”饮食原则联合高强度间歇有氧运动对老年糖尿病伴高脂血症患者的影响。方法:选取2022年8月—2023年8月厦门大学附属第一医院收治的102例老年糖尿病伴高脂血症患者。随机将其分为对照组与观察组,各51例。对照组给予“三低三不”饮食原则联合中低强度持续有氧运动,观察组给予“三低三不”饮食原则联合高强度间歇有氧运动。比较两组干预前后的血糖指标、血脂指标、体格指标、血管内皮功能指标。结果:干预后,两组空腹血糖(FBG)、餐后2 h血糖(2 h PG)均低于干预前,观察组FBG、2 h PG均低于对照组,差异有统计学意义(P<0.05)。干预后,两组总胆固醇(TC)、甘油三酯(TG)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(lLDL-C)均低于干预前,HDL-C高于干预前,观察组TC、TG、LDL-C均低于对照组,HDL-C高于对照组,差异有统计学意义(P<0.05)。干预后,两组体重、体重指数及腰围均低于干预前,观察组体重、体重指数及腰围均低于对照组,差异有统计学意义(P<0.05)。干预后,两组内皮素(ET-1)低于干预前,一氧化氮(NO)高于干预前,观察组ET-1低于对照组,NO高于对照组,差异有统计学意义(P<0.05)。结论:“三低三不”饮食原则联合高强度间歇有氧运动能够降低老年糖尿病伴高脂血症患者的血糖血脂水平,降低其体格指标,改善其血管内皮功能。
文摘Objective:We aim to investigate the effects of different exercise intensities and volumes on Phlegm-dampness constitution(PDC).Methods:The rats were fed with high-fat food and lived in 75%–85%humidity for 6 weeks to establish the model of PDC.Then PDC rats were screened and intervened by varying exercise intensities for 8 weeks.Weight,constitution scores,blood and liver tissues were collected to detect the concentration of serum total cholesterol(Tch),triglyceride(TG),low-density lipoprotein cholesterol(LDL-C),high-density lipoprotein cholesterol(HDL-C),homocysteine(Hcy),blood glucose(GLU),alanine transaminase(ALT)and percentage of lipid droplet area in liver tissue(PLDA).Results:The weight,Tch,TG,HDL-C,LDL-C,Hcy,GLU,and ALT of rats in moderate-intensity exercise group returned to normal.The rats with high-intensity or low-intensity exercise did not recover as well as moderate-intensity.Conclusion:Different exercise intensities and volumes have different effects on PDC,moderate-intensity exercise over an 8-week intervention is most appropriate.
