Objectives To assess the effects of an exercise training program combining power-oriented resistance training(RT)and high-intensity interval training(HIIT)on metabolic syndrome(MetS)markers in older people with COPD.M...Objectives To assess the effects of an exercise training program combining power-oriented resistance training(RT)and high-intensity interval training(HIIT)on metabolic syndrome(MetS)markers in older people with COPD.Methods Twenty-nine older people(66–90 years old)with COPD were randomly assigned to 12 weeks of exercise training(ET;power-oriented RT+HIIT)or a control group(CON).Waist circumference,diastolic(DBP)and systolic blood pressure(SBP),and serum fasting glucose,triglycerides and HDL cholesterol levels were assessed at baseline and after 12 weeks.Linear mixed-effects models were used to assess the effects of the intervention,and data were reported as mean and 95%confidence interval values.Results Waist circumference increased in the CT group,but not in the ET group(2.0[0.2,3.7]vs.1.0[−1.3,3.2]cm,respectively).No changes in fasting glucose(−4.1[−10.3,2.1]vs.−1.0[−8.7,6.7]mg dL−1),triglycerides(3.9[−13.4,21.3]vs.−13.9[−35.6,7.7]mg dL−1)or HDL cholesterol(1.0[−3.4,5.4]vs.2.9[−2.6,8.4]mg dL−1)were found in the CT or ET group,respectively.The ET group exhibited decreased DBP(−5.2[−9.5,−0.8]mmHg)and SBP(−2.7[−22.7,−2.7]mmHg),while no changes were found in the CT group(0.3[−3.2,3.7]and−3.5[−11.4,4.5]mmHg).MetS z-score declined in ET but remained unchanged in CT(−0.88[−1.74,−0.03]vs.0.07[−0.62,0.76],respectively).Conclusions A 12-week exercise training program led to a reduction in blood pressure and MetS z-score in older people with COPD.展开更多
BACKGROUND： Plyometric training has been shown to improve performance in distance running events up to 5-km, but little research has been done on this type of training for marathon （42.195-km） runners. The purpose ...BACKGROUND： Plyometric training has been shown to improve performance in distance running events up to 5-km, but little research has been done on this type of training for marathon （42.195-km） runners. The purpose of this study was to examine the effects of plyometric and explosive speed training （PLYO） on recreational marathoners. METHODS： Twenty-two subjects （ages 18-23）, were randomized to either PLYO or core training （CORE） for a weekly session performed for 12 weeks, in addition to marathon training. Sprint, jump, and distance running performance variables were measured pre- and post-intervention. RESULTS： In the sprint tests, the PLYO group improved in both the 200-m run （P ≤ 0.001） and 60-m run （P = 0.004）, and trended toward improvement in the 30-m fly （P = 0.051）. The difference from CORE was significant only in the 200-m （P = 0.002）. The CORE group did not change in any of the sprint or jump variables. The PLYO group was significantly different from the CORE group in the standing long jump （P = 0.024）. There were no differences between groups in distance running performance. Both improved in 2-mile （3.219-km） time trial （p 〈 0.001）, VO2MAX （P = 0.026 for CORE; P = 0.002 for PLYO）, and running economy （P = 0.01）. CONCLUSION： Weekly PLYO training improves sprint speed and maintains jumping ability in recreational marathoners, but does not augment improvements in distance running performance.展开更多
The effects of combined training(CT)on improving general health are well known,however,few studies have investigated the effects of low-volume CT.So,the aim of this study is to investigate the effects of 6 weeks of lo...The effects of combined training(CT)on improving general health are well known,however,few studies have investigated the effects of low-volume CT.So,the aim of this study is to investigate the effects of 6 weeks of lowvolume CT on body composition,handgrip strength(HGS),cardiorespiratory fitness(CRF)and affective response(AR)to exercise.Eighteen healthy,active young adult man(meanSD,[20.061.66]years;[22.232.76]kg/m2)performed either a low-volume CT(EG,n?9),or maintained a normal life(CG,n?9).The CT was composed of three resistance exercises followed by a high intensity-interval training(HIIT)on cycle ergometer performed twice a week.The measures of the body composition,HGS,maximal oxygen consumption(V_O2max)and AR to exercise were taken at baseline and after training for analysis.Furthermore,an ANOVA test of repeated measures and t-test paired samples were used with a p0.05.The results showed that EG improved HGS(pre:[45.6711.84]kg vs.post:[52.4411.90]kg,p<0.01)and V_O2max(pre:[41.365.16]ml⋅kg-1⋅min-1 vs.post:[44.075.98]ml⋅kg-1⋅min-1,p<0.01).Although,for all measures the body composition had not significant differences between weeks(p>0.05),nevertheless the feeling scale was positive in all weeks and without significant differences between them(p>0.05).Lastly,for active young adults,the low-volume CT improved HGS,CRF and had a positive outcome in AR,with less volume and time spent than traditional exercise recommendations.展开更多
文摘Objectives To assess the effects of an exercise training program combining power-oriented resistance training(RT)and high-intensity interval training(HIIT)on metabolic syndrome(MetS)markers in older people with COPD.Methods Twenty-nine older people(66–90 years old)with COPD were randomly assigned to 12 weeks of exercise training(ET;power-oriented RT+HIIT)or a control group(CON).Waist circumference,diastolic(DBP)and systolic blood pressure(SBP),and serum fasting glucose,triglycerides and HDL cholesterol levels were assessed at baseline and after 12 weeks.Linear mixed-effects models were used to assess the effects of the intervention,and data were reported as mean and 95%confidence interval values.Results Waist circumference increased in the CT group,but not in the ET group(2.0[0.2,3.7]vs.1.0[−1.3,3.2]cm,respectively).No changes in fasting glucose(−4.1[−10.3,2.1]vs.−1.0[−8.7,6.7]mg dL−1),triglycerides(3.9[−13.4,21.3]vs.−13.9[−35.6,7.7]mg dL−1)or HDL cholesterol(1.0[−3.4,5.4]vs.2.9[−2.6,8.4]mg dL−1)were found in the CT or ET group,respectively.The ET group exhibited decreased DBP(−5.2[−9.5,−0.8]mmHg)and SBP(−2.7[−22.7,−2.7]mmHg),while no changes were found in the CT group(0.3[−3.2,3.7]and−3.5[−11.4,4.5]mmHg).MetS z-score declined in ET but remained unchanged in CT(−0.88[−1.74,−0.03]vs.0.07[−0.62,0.76],respectively).Conclusions A 12-week exercise training program led to a reduction in blood pressure and MetS z-score in older people with COPD.
文摘BACKGROUND： Plyometric training has been shown to improve performance in distance running events up to 5-km, but little research has been done on this type of training for marathon （42.195-km） runners. The purpose of this study was to examine the effects of plyometric and explosive speed training （PLYO） on recreational marathoners. METHODS： Twenty-two subjects （ages 18-23）, were randomized to either PLYO or core training （CORE） for a weekly session performed for 12 weeks, in addition to marathon training. Sprint, jump, and distance running performance variables were measured pre- and post-intervention. RESULTS： In the sprint tests, the PLYO group improved in both the 200-m run （P ≤ 0.001） and 60-m run （P = 0.004）, and trended toward improvement in the 30-m fly （P = 0.051）. The difference from CORE was significant only in the 200-m （P = 0.002）. The CORE group did not change in any of the sprint or jump variables. The PLYO group was significantly different from the CORE group in the standing long jump （P = 0.024）. There were no differences between groups in distance running performance. Both improved in 2-mile （3.219-km） time trial （p 〈 0.001）, VO2MAX （P = 0.026 for CORE; P = 0.002 for PLYO）, and running economy （P = 0.01）. CONCLUSION： Weekly PLYO training improves sprint speed and maintains jumping ability in recreational marathoners, but does not augment improvements in distance running performance.
文摘The effects of combined training(CT)on improving general health are well known,however,few studies have investigated the effects of low-volume CT.So,the aim of this study is to investigate the effects of 6 weeks of lowvolume CT on body composition,handgrip strength(HGS),cardiorespiratory fitness(CRF)and affective response(AR)to exercise.Eighteen healthy,active young adult man(meanSD,[20.061.66]years;[22.232.76]kg/m2)performed either a low-volume CT(EG,n?9),or maintained a normal life(CG,n?9).The CT was composed of three resistance exercises followed by a high intensity-interval training(HIIT)on cycle ergometer performed twice a week.The measures of the body composition,HGS,maximal oxygen consumption(V_O2max)and AR to exercise were taken at baseline and after training for analysis.Furthermore,an ANOVA test of repeated measures and t-test paired samples were used with a p0.05.The results showed that EG improved HGS(pre:[45.6711.84]kg vs.post:[52.4411.90]kg,p<0.01)and V_O2max(pre:[41.365.16]ml⋅kg-1⋅min-1 vs.post:[44.075.98]ml⋅kg-1⋅min-1,p<0.01).Although,for all measures the body composition had not significant differences between weeks(p>0.05),nevertheless the feeling scale was positive in all weeks and without significant differences between them(p>0.05).Lastly,for active young adults,the low-volume CT improved HGS,CRF and had a positive outcome in AR,with less volume and time spent than traditional exercise recommendations.
