The mechanism underlying body weight support treadmill training in elderly hemiplegic stroke patients is largely unknown. This study aimed to elucidate the changes of cortical blood flow in seven elderly patients with...The mechanism underlying body weight support treadmill training in elderly hemiplegic stroke patients is largely unknown. This study aimed to elucidate the changes of cortical blood flow in seven elderly patients with post-stroke hemiplegia before and after body weight support treadmill training by semi-quantitative analysis of regional cerebral blood flow assessed by single photon emission computed tomography. Body weight support treadmill training for 6 months was effective in improving cerebral blood flow and promoting the walking speed and balance recovery in elderly patients with post-stroke hemiplegia.展开更多
Objectives:To examine the effects of finger-movement exercises and finger weight-lift training on handgrip strength and Activities of Daily Living Scale(ADLS)values.Methods:A total of 80 very elderly adults(aged80 ye...Objectives:To examine the effects of finger-movement exercises and finger weight-lift training on handgrip strength and Activities of Daily Living Scale(ADLS)values.Methods:A total of 80 very elderly adults(aged80 years)were assigned to either an intervention group(n?40)or a control group(n?40).Subjects in the intervention group performed finger-movement exercises and weight-lift training for a period of 3 months,while subjects in the control group received no intervention,and were unaware of the interventions received in the other group.Results:After completing 3 months of finger-movement exercises and weight-lift training,the average handgrip strength of the 40 participants in the intervention group had increased by 2.1 kg,whereas that in the control group decreased by 0.27 kg(P<0.05).After receiving intervention,the number of subjects in the intervention group with an ADLS score>22 points decreased by 7.5%(P<0.05,vs.pre-intervention).Conclusions:The combined use interventionwith finger-movement exercises and proper finger weight-lift training improved the handgrip strength andADLS values of very elderly individuals.These rehabilitation exercisesmay be used to help the elderlymaintain their self-care abilities.展开更多
Some studies performed weight training for improvement physical fitness in martial arts. The purpose of this study was to compare weight training with two loading patterns （double pyramid and reverse step） on muscul...Some studies performed weight training for improvement physical fitness in martial arts. The purpose of this study was to compare weight training with two loading patterns （double pyramid and reverse step） on muscular strength and muscular endurance in karate men. The subjects who have experienced six years in karate are participated voluntarily. These subjects have been divided randomly into three groups： double pyramid group, reverse step group and control group. Characteristics of subject： double pyramid group （age： 20.55 ± 2.62 years, weight： 73.45 ± 11.17 kg and height： 176.86 ±5.04 cm）, reverse step group （age： 20.50 ± 3.92 years, weight： 75.35 ± 11.24 kg and height： 178.90 ± 9.24 cm） and control group （age： 21.36 ±4.65 year ,weight： 75.77 ± 6.07 kg and height： 178.64± 4.67 cm）. All subjects performed weight training during eight weeks. Data were statistically analyzed by text dependent, analysis of variance and tukey test with a 0.05 significant level. The result shows that a program of weight training double-pyramid method significantly increases muscular strength and muscular endurance, while a period of weight training reverses step method only significantly increase muscle endurance but no change in muscular strength is observed. The coaches are recommended to use a double pyramid method to improve muscular strength and muscular endurance training with regard to training load for preparing their athletes.展开更多
Background: Water weight-loss walking training is an emerging physical therapy technique, which provides new ideas for improving the motor function of stroke patients and improving the quality of life of patients. How...Background: Water weight-loss walking training is an emerging physical therapy technique, which provides new ideas for improving the motor function of stroke patients and improving the quality of life of patients. However, the rehabilitation effect of water weight-loss training in stroke patients is currently unclear. Objective: To analyze the effect of water weight loss walking training in stroke patients. Methods: A total of 180 stroke patients admitted to our hospital from January 2019 to December 2021 were selected and randomly divided into two groups. The control group received routine walking training, and the research group performed weight loss walking training in water on this basis. The lower limb motor function, muscle tone grade, daily living ability, gait and balance ability were compared between the two groups before and after treatment. Results: Compared with the control group, the FMA-LE score (Fugl-Meyer motor assessment of Lower Extremity), MBI score (Modified Barthel Index) and BBS score (berg balance scale) of the study group were higher after treatment, and the muscle tone was lower (P Conclusion: Water weight loss walking training can enhance patients’ muscle tension, correct patients’ abnormal gait, improve patients’ balance and walking ability, and contribute to patients’ motor function recovery and self-care ability improvement.展开更多
We present a gain adaptive tuning method for fiber Raman amplifier(FRA) using two-stage neural networks(NNs) and double weights updates. After training the connection weights of two-stage NNs separately in training ph...We present a gain adaptive tuning method for fiber Raman amplifier(FRA) using two-stage neural networks(NNs) and double weights updates. After training the connection weights of two-stage NNs separately in training phase, the connection weights of the unified NN are updated again in verification phase according to error between the predicted and target gains to eliminate the inherent error of the NNs. The simulation results show that the mean of root mean square error(RMSE) and maximum error of gains are 0.131 d B and 0.281 d B, respectively. It shows that the method can realize adaptive adjustment function of FRA gain with high accuracy.展开更多
Background'.Central arterial stiffness is a cardiovascular risk factor that can be readily affected through engagement in physical exercise training,with resistance and aerobic exercise having disparate affects.De...Background'.Central arterial stiffness is a cardiovascular risk factor that can be readily affected through engagement in physical exercise training,with resistance and aerobic exercise having disparate affects.Despite the growing popularity of high-intensity cross-training(HICT),little is currently known about the effects of this mixed modality exercise stimulus on arterial stiffness.Therefore,the purpose of this study was to characterize the arterial stiffness of habitual HICT participants vs.aerobically active and sedentary controls using a cross-sectional design.Methods'.A total of 30 participants were recruited:10 middle-aged long-term participants of HICT(CrossFit)and 20 age,sex,and height matched controls(10 recreationally active,10 sedentary).Central and peripheral pulse wave velocities were measured for the carotid-femoral and femoral-dorsalis pedis arterial segments.Aerobic fitness(maximal oxygen uptake,VChmax)was measured and typical exercise participation rates were self-reported for each group.Results'.HICT participants manifested central pulse wave velocity(PWV)(5.3±1.0 m/s,mean±SD)and VChmax(43±6 mL/kg/min)values nearly identical to active controls.Both active groups had significantly better values than sedentary controls(7.1±1.0 m/s,p≤0.001;and 32±7 mL/kg/min,p=0.01).No differences were observed in peripheral PWV between groups.Conclusion'.Habitual participation in HICT exercise was not associated with increased central nor peripheral arterial stiffness.Long-term HICT participants presented with similar fitness and arterial stiffness as compared with participants who practiced traditional aerobic exercise.Compared to sedentary living,HICT may offer musculoskeletal and cardiovascular health benefits without negatively impacting arterial stiffness.展开更多
Node of network has lots of information, such as topology, text and label information. Therefore, node classification is an open issue. Recently, one vector of node is directly connected at the end of another vector. ...Node of network has lots of information, such as topology, text and label information. Therefore, node classification is an open issue. Recently, one vector of node is directly connected at the end of another vector. However, this method actually obtains the performance by extending dimensions and considering that the text and structural information are one-to-one, which is obviously unreasonable. Regarding this issue, a method by weighting vectors is proposed in this paper. Three methods, negative logarithm, modulus and sigmoid function are used to weight-trained vectors, then recombine the weighted vectors and put them into the SVM classifier for evaluation output. By comparing three different weighting methods, the results showed that using negative logarithm weighting achieved better results than the other two using modulus and sigmoid function weighting, and was superior to directly concatenating vectors in the same dimension.展开更多
文摘The mechanism underlying body weight support treadmill training in elderly hemiplegic stroke patients is largely unknown. This study aimed to elucidate the changes of cortical blood flow in seven elderly patients with post-stroke hemiplegia before and after body weight support treadmill training by semi-quantitative analysis of regional cerebral blood flow assessed by single photon emission computed tomography. Body weight support treadmill training for 6 months was effective in improving cerebral blood flow and promoting the walking speed and balance recovery in elderly patients with post-stroke hemiplegia.
基金funded by the Aging Scientific Research Center in Zhejiang Province(ZRCA201013).
文摘Objectives:To examine the effects of finger-movement exercises and finger weight-lift training on handgrip strength and Activities of Daily Living Scale(ADLS)values.Methods:A total of 80 very elderly adults(aged80 years)were assigned to either an intervention group(n?40)or a control group(n?40).Subjects in the intervention group performed finger-movement exercises and weight-lift training for a period of 3 months,while subjects in the control group received no intervention,and were unaware of the interventions received in the other group.Results:After completing 3 months of finger-movement exercises and weight-lift training,the average handgrip strength of the 40 participants in the intervention group had increased by 2.1 kg,whereas that in the control group decreased by 0.27 kg(P<0.05).After receiving intervention,the number of subjects in the intervention group with an ADLS score>22 points decreased by 7.5%(P<0.05,vs.pre-intervention).Conclusions:The combined use interventionwith finger-movement exercises and proper finger weight-lift training improved the handgrip strength andADLS values of very elderly individuals.These rehabilitation exercisesmay be used to help the elderlymaintain their self-care abilities.
文摘Some studies performed weight training for improvement physical fitness in martial arts. The purpose of this study was to compare weight training with two loading patterns （double pyramid and reverse step） on muscular strength and muscular endurance in karate men. The subjects who have experienced six years in karate are participated voluntarily. These subjects have been divided randomly into three groups： double pyramid group, reverse step group and control group. Characteristics of subject： double pyramid group （age： 20.55 ± 2.62 years, weight： 73.45 ± 11.17 kg and height： 176.86 ±5.04 cm）, reverse step group （age： 20.50 ± 3.92 years, weight： 75.35 ± 11.24 kg and height： 178.90 ± 9.24 cm） and control group （age： 21.36 ±4.65 year ,weight： 75.77 ± 6.07 kg and height： 178.64± 4.67 cm）. All subjects performed weight training during eight weeks. Data were statistically analyzed by text dependent, analysis of variance and tukey test with a 0.05 significant level. The result shows that a program of weight training double-pyramid method significantly increases muscular strength and muscular endurance, while a period of weight training reverses step method only significantly increase muscle endurance but no change in muscular strength is observed. The coaches are recommended to use a double pyramid method to improve muscular strength and muscular endurance training with regard to training load for preparing their athletes.
文摘Background: Water weight-loss walking training is an emerging physical therapy technique, which provides new ideas for improving the motor function of stroke patients and improving the quality of life of patients. However, the rehabilitation effect of water weight-loss training in stroke patients is currently unclear. Objective: To analyze the effect of water weight loss walking training in stroke patients. Methods: A total of 180 stroke patients admitted to our hospital from January 2019 to December 2021 were selected and randomly divided into two groups. The control group received routine walking training, and the research group performed weight loss walking training in water on this basis. The lower limb motor function, muscle tone grade, daily living ability, gait and balance ability were compared between the two groups before and after treatment. Results: Compared with the control group, the FMA-LE score (Fugl-Meyer motor assessment of Lower Extremity), MBI score (Modified Barthel Index) and BBS score (berg balance scale) of the study group were higher after treatment, and the muscle tone was lower (P Conclusion: Water weight loss walking training can enhance patients’ muscle tension, correct patients’ abnormal gait, improve patients’ balance and walking ability, and contribute to patients’ motor function recovery and self-care ability improvement.
基金supported by the Natural Science Research Project of Colleges and Universities in Anhui Province (No.KJ2021A0479)the Science Research Program of Anhui University of Finance and Economics (No.ACKYC22082)。
文摘We present a gain adaptive tuning method for fiber Raman amplifier(FRA) using two-stage neural networks(NNs) and double weights updates. After training the connection weights of two-stage NNs separately in training phase, the connection weights of the unified NN are updated again in verification phase according to error between the predicted and target gains to eliminate the inherent error of the NNs. The simulation results show that the mean of root mean square error(RMSE) and maximum error of gains are 0.131 d B and 0.281 d B, respectively. It shows that the method can realize adaptive adjustment function of FRA gain with high accuracy.
基金supported by a Discovery Grant (No. 03974) from the Natural Sciences and Engineering Research Council (NSERC) of Canada
文摘Background'.Central arterial stiffness is a cardiovascular risk factor that can be readily affected through engagement in physical exercise training,with resistance and aerobic exercise having disparate affects.Despite the growing popularity of high-intensity cross-training(HICT),little is currently known about the effects of this mixed modality exercise stimulus on arterial stiffness.Therefore,the purpose of this study was to characterize the arterial stiffness of habitual HICT participants vs.aerobically active and sedentary controls using a cross-sectional design.Methods'.A total of 30 participants were recruited:10 middle-aged long-term participants of HICT(CrossFit)and 20 age,sex,and height matched controls(10 recreationally active,10 sedentary).Central and peripheral pulse wave velocities were measured for the carotid-femoral and femoral-dorsalis pedis arterial segments.Aerobic fitness(maximal oxygen uptake,VChmax)was measured and typical exercise participation rates were self-reported for each group.Results'.HICT participants manifested central pulse wave velocity(PWV)(5.3±1.0 m/s,mean±SD)and VChmax(43±6 mL/kg/min)values nearly identical to active controls.Both active groups had significantly better values than sedentary controls(7.1±1.0 m/s,p≤0.001;and 32±7 mL/kg/min,p=0.01).No differences were observed in peripheral PWV between groups.Conclusion'.Habitual participation in HICT exercise was not associated with increased central nor peripheral arterial stiffness.Long-term HICT participants presented with similar fitness and arterial stiffness as compared with participants who practiced traditional aerobic exercise.Compared to sedentary living,HICT may offer musculoskeletal and cardiovascular health benefits without negatively impacting arterial stiffness.
文摘Node of network has lots of information, such as topology, text and label information. Therefore, node classification is an open issue. Recently, one vector of node is directly connected at the end of another vector. However, this method actually obtains the performance by extending dimensions and considering that the text and structural information are one-to-one, which is obviously unreasonable. Regarding this issue, a method by weighting vectors is proposed in this paper. Three methods, negative logarithm, modulus and sigmoid function are used to weight-trained vectors, then recombine the weighted vectors and put them into the SVM classifier for evaluation output. By comparing three different weighting methods, the results showed that using negative logarithm weighting achieved better results than the other two using modulus and sigmoid function weighting, and was superior to directly concatenating vectors in the same dimension.
