The exercise recommendation system is emerging as a promising application in online learning scenarios,providing personalized recommendations to assist students with explicit learning directions.Existing solutions gen...The exercise recommendation system is emerging as a promising application in online learning scenarios,providing personalized recommendations to assist students with explicit learning directions.Existing solutions generally follow a collaborative filtering paradigm,while the implicit connections between students(exercises)have been largely ignored.In this study,we aim to propose an exercise recommendation paradigm that can reveal the latent connections between student-student(exercise-exercise).Specifically,a new framework was proposed,namely personalized exercise recommendation with student and exercise portraits(PERP).It consists of three sequential and interdependent modules:Collaborative student exercise graph(CSEG)construction,joint random walk,and recommendation list optimization.Technically,CSEG is created as a unified heterogeneous graph with students’response behaviors and student(exercise)relationships.Then,a joint random walk to take full advantage of the spectral properties of nearly uncoupled Markov chains is performed on CSEG,which allows for full exploration of both similar exercises that students have finished and connections between students(exercises)with similar portraits.Finally,we propose to optimize the recommendation list to obtain different exercise suggestions.After analyses of two public datasets,the results demonstrated that PERP can satisfy novelty,accuracy,and diversity.展开更多
Objective:To research the sodium hyaluronate joint cavity filling combined with exercise therapy on the indicator of pain,motor function,and levels of inflammatory factors in joint fluid in patients with post-traumati...Objective:To research the sodium hyaluronate joint cavity filling combined with exercise therapy on the indicator of pain,motor function,and levels of inflammatory factors in joint fluid in patients with post-traumatic knee arthritis.Method Totally 100 patients(Department of Orthopaedics,The second Affiliated Hospital to Liaoning University of Chinese Medicine,2013.10-2018.8)with post-traumatic knee arthritis were selected,then they were divided into observation group(n=50)and control group(n=50).The control group was given glucosamine sulfate and sodium hyaluronate joint cavity filling,the observation group was given leg press with visual feedback,they were treated 4 weeks.Assessing the pain degree through visual analog scale(VAS),hospital for special surgery knee score(HSS)as the indicator of motor function,inflammatory factor(TNF-α,IL-6,and IL-8)in the joint fluid.Results The score of VAS were lower than pretherapy(P<0.05),the degree of VAS of observation group were lower than control group(P<0.05).The score of HSS were higher than pretherapy(P<0.05),the degree of VAS of observation group were higher than control group(P<0.05).The inflammatory factor(TNF-α,IL-6,and CRP)in the joint fluid were lower than pretherapy(P<0.05),and the observation group were lower than control group(P<0.05).Conclusions Giving sodium hyaluronate joint cavity filling combined with exercise therapy can improve the function of joint.展开更多
AIM:To determine if the addition of hip-strengthening exercises decreases pain and improves function in patients with patellofemoral pain syndrome.METHODS:The authors completed a systematic reviewsearching eight datab...AIM:To determine if the addition of hip-strengthening exercises decreases pain and improves function in patients with patellofemoral pain syndrome.METHODS:The authors completed a systematic reviewsearching eight databases(i.e.,Pub Med,Cochrane,CINHAL,MEDLINE,Sports Discus,EMBASE,APTA Hooked on Evidence,and PEDro).Two independent reviewers screened and excluded studies if they did not meet the following inclusion criteria:subjects had a primary diagnosis of patellofemoral pain syndrome(PFPS),intervention group included hip-strengthening exercises,control group included a traditional physical therapy intervention,study included outcome measures of pain and/or function,study used a randomized controlled trial design,PEDro score was ≥ 7,and study was published in a peer-reviewed journal.Primary outcome measures were subjective scales of pain and function.These measures were converted to standardized mean difference [effect size(ES)],and a random-effects model was used to calculate the overall ES.RESULTS:Two hundred eighty-three studies were screened for inclusion in our meta-analysis.Nine studies were deemed suitable for data extraction and analysis.A total of 426 subjects were used in the nine studies.Overall,there was a significant positive effect of hip-strengthening exercises on measures of pain and function in subjects with PFPS(ES = 0.94,P = 0.00004).None of the individual studies had a negative ES,with study ES ranging from 0.35 to 2.59.Because of the high degree of between-study variance(I2 = 76%;Q = 34.0,P < 0.001),subgroup meta-analyses and meta-regressions were performed.None of the potential moderator variables that were investigated(e.g.,outcome type,hip region targeted,duration of treatment) could explain a significant amount of the between-study variance in ES(P ≥ 0.23).CONCLUSION:Overall,the addition of hip-strengthening exercises to traditional physical therapy produced greater improvements in measures of pain and function.展开更多
Objective: To study the clinical effect of rehabmtation treating combined with intra-articular injection of sodium hyaluronate for exercise induced knee osteoarthritis, and to research the function, biomechanics of kn...Objective: To study the clinical effect of rehabmtation treating combined with intra-articular injection of sodium hyaluronate for exercise induced knee osteoarthritis, and to research the function, biomechanics of knee joint, and inflammatory factor in articular cavity. Method:Selecting 120 patients with exercise induced knee osteoarthritis, then they were randomly divided into control group (n=60) and intervene group (n=60). The patients in the control group were given conventional rehabmtation treating, and the intervene group were given intra-articular injection of sodium hyaluronate on this basic, they were treated 4 weeks. Evaluating the function of knee joint;conduct isokinetic muscle strength test (determination of the angIllar velocity were 60°/S, 180°/S);test the ratio of muscle peak torque and four muscles centripetal centripetal peak torque and peak torque, work load of femoral knee joints after (simultaneous determination of the angular velocity were 60°/S);detect the inflammatory factor in the joint fluid. Results: After the treatment, clinical effect in intervene group was superior to that in control group,but had no statistical significance;after the treatment, the score of function of knee joint in the two groups were higher than before treatment, and had statistical significance, and the score of function of knee joint in the intervene group were higher than control group, and the difference had statistical significance;Angular velocity of 60°/S and 180°/S the two groups peak torque, work load and the H/Q values were significantly increased, the intervene group were higher than control group, and the difference had statistical significance;inflammatory factor in the two groups were significantly decreased, the intervene group were lower than control group, and the difference had statistical significance.Conclusions: On the basic of rehabmtation treating, the treatment of intra-articular injection of sodium hyaluronate can improve the function of knee joint through improving the knee muscle strength, the level of their participation in the activities of the biomechanics of knee joint, and the inflammatory factor in the joint fluid.展开更多
The koshiwari(Sumo Squat)is a traditional exercise used for basic training for sumo wrestling,the national sport of Japan.This study compares and analyzes the kinetics and kinematics of the koshiwari and squat with wi...The koshiwari(Sumo Squat)is a traditional exercise used for basic training for sumo wrestling,the national sport of Japan.This study compares and analyzes the kinetics and kinematics of the koshiwari and squat with wide-stance(WSQ)to provide insight related to the mechanical features of the koshiwari.Optical three-dimensional automatic analysis instruments were used to measure movements of 11 men during exercises.A force platform was used to measure floor reactions.Two movements were analyzed:koshiwari and WSQ.The koshiwari and WSQ were compared as analytical objectives,using paired t-tests corresponding to correction joint angles,angular impulse,and joint torques with the level of significance set under 5%.Koshiwari was found to involve markedly greater excursions of abduction(maximum and minimum angle,correction angle to 20%-60%)and external rotation(maximum and minimum angle)at the hip compared with the WSQ,as well as markedly less hip flexion(maximum angle,correction angle 10%-90%)and torso forward tilt(maximum angle,correction angle 30%-100%).Koshiwari also involved greater extension-flexion axis,abduction-adduction axis,external rotation-internal rotation axis angular impulse and flexion(10%-100%),adduction(40%-60%),and external rotation(20%)torques at the hip than WSQ exercises.Results suggest that hip external rotation torque is attributable to hip external rotator muscle activity.The activity can apparently reduce the risk of ACL(Anterior cruciate ligament)injuries and patellofemoral pain syndrome and improve athletic performance.展开更多
基金supported by the Industrial Support Project of Gansu Colleges under Grant No.2022CYZC-11Gansu Natural Science Foundation Project under Grant No.21JR7RA114+1 种基金National Natural Science Foundation of China under Grants No.622760736,No.1762078,and No.61363058Northwest Normal University Teachers Research Capacity Promotion Plan under Grant No.NWNU-LKQN2019-2.
文摘The exercise recommendation system is emerging as a promising application in online learning scenarios,providing personalized recommendations to assist students with explicit learning directions.Existing solutions generally follow a collaborative filtering paradigm,while the implicit connections between students(exercises)have been largely ignored.In this study,we aim to propose an exercise recommendation paradigm that can reveal the latent connections between student-student(exercise-exercise).Specifically,a new framework was proposed,namely personalized exercise recommendation with student and exercise portraits(PERP).It consists of three sequential and interdependent modules:Collaborative student exercise graph(CSEG)construction,joint random walk,and recommendation list optimization.Technically,CSEG is created as a unified heterogeneous graph with students’response behaviors and student(exercise)relationships.Then,a joint random walk to take full advantage of the spectral properties of nearly uncoupled Markov chains is performed on CSEG,which allows for full exploration of both similar exercises that students have finished and connections between students(exercises)with similar portraits.Finally,we propose to optimize the recommendation list to obtain different exercise suggestions.After analyses of two public datasets,the results demonstrated that PERP can satisfy novelty,accuracy,and diversity.
文摘Objective:To research the sodium hyaluronate joint cavity filling combined with exercise therapy on the indicator of pain,motor function,and levels of inflammatory factors in joint fluid in patients with post-traumatic knee arthritis.Method Totally 100 patients(Department of Orthopaedics,The second Affiliated Hospital to Liaoning University of Chinese Medicine,2013.10-2018.8)with post-traumatic knee arthritis were selected,then they were divided into observation group(n=50)and control group(n=50).The control group was given glucosamine sulfate and sodium hyaluronate joint cavity filling,the observation group was given leg press with visual feedback,they were treated 4 weeks.Assessing the pain degree through visual analog scale(VAS),hospital for special surgery knee score(HSS)as the indicator of motor function,inflammatory factor(TNF-α,IL-6,and IL-8)in the joint fluid.Results The score of VAS were lower than pretherapy(P<0.05),the degree of VAS of observation group were lower than control group(P<0.05).The score of HSS were higher than pretherapy(P<0.05),the degree of VAS of observation group were higher than control group(P<0.05).The inflammatory factor(TNF-α,IL-6,and CRP)in the joint fluid were lower than pretherapy(P<0.05),and the observation group were lower than control group(P<0.05).Conclusions Giving sodium hyaluronate joint cavity filling combined with exercise therapy can improve the function of joint.
文摘AIM:To determine if the addition of hip-strengthening exercises decreases pain and improves function in patients with patellofemoral pain syndrome.METHODS:The authors completed a systematic reviewsearching eight databases(i.e.,Pub Med,Cochrane,CINHAL,MEDLINE,Sports Discus,EMBASE,APTA Hooked on Evidence,and PEDro).Two independent reviewers screened and excluded studies if they did not meet the following inclusion criteria:subjects had a primary diagnosis of patellofemoral pain syndrome(PFPS),intervention group included hip-strengthening exercises,control group included a traditional physical therapy intervention,study included outcome measures of pain and/or function,study used a randomized controlled trial design,PEDro score was ≥ 7,and study was published in a peer-reviewed journal.Primary outcome measures were subjective scales of pain and function.These measures were converted to standardized mean difference [effect size(ES)],and a random-effects model was used to calculate the overall ES.RESULTS:Two hundred eighty-three studies were screened for inclusion in our meta-analysis.Nine studies were deemed suitable for data extraction and analysis.A total of 426 subjects were used in the nine studies.Overall,there was a significant positive effect of hip-strengthening exercises on measures of pain and function in subjects with PFPS(ES = 0.94,P = 0.00004).None of the individual studies had a negative ES,with study ES ranging from 0.35 to 2.59.Because of the high degree of between-study variance(I2 = 76%;Q = 34.0,P < 0.001),subgroup meta-analyses and meta-regressions were performed.None of the potential moderator variables that were investigated(e.g.,outcome type,hip region targeted,duration of treatment) could explain a significant amount of the between-study variance in ES(P ≥ 0.23).CONCLUSION:Overall,the addition of hip-strengthening exercises to traditional physical therapy produced greater improvements in measures of pain and function.
基金National Natural Science Foundation Youth Project:81501857.
文摘Objective: To study the clinical effect of rehabmtation treating combined with intra-articular injection of sodium hyaluronate for exercise induced knee osteoarthritis, and to research the function, biomechanics of knee joint, and inflammatory factor in articular cavity. Method:Selecting 120 patients with exercise induced knee osteoarthritis, then they were randomly divided into control group (n=60) and intervene group (n=60). The patients in the control group were given conventional rehabmtation treating, and the intervene group were given intra-articular injection of sodium hyaluronate on this basic, they were treated 4 weeks. Evaluating the function of knee joint;conduct isokinetic muscle strength test (determination of the angIllar velocity were 60°/S, 180°/S);test the ratio of muscle peak torque and four muscles centripetal centripetal peak torque and peak torque, work load of femoral knee joints after (simultaneous determination of the angular velocity were 60°/S);detect the inflammatory factor in the joint fluid. Results: After the treatment, clinical effect in intervene group was superior to that in control group,but had no statistical significance;after the treatment, the score of function of knee joint in the two groups were higher than before treatment, and had statistical significance, and the score of function of knee joint in the intervene group were higher than control group, and the difference had statistical significance;Angular velocity of 60°/S and 180°/S the two groups peak torque, work load and the H/Q values were significantly increased, the intervene group were higher than control group, and the difference had statistical significance;inflammatory factor in the two groups were significantly decreased, the intervene group were lower than control group, and the difference had statistical significance.Conclusions: On the basic of rehabmtation treating, the treatment of intra-articular injection of sodium hyaluronate can improve the function of knee joint through improving the knee muscle strength, the level of their participation in the activities of the biomechanics of knee joint, and the inflammatory factor in the joint fluid.
文摘The koshiwari(Sumo Squat)is a traditional exercise used for basic training for sumo wrestling,the national sport of Japan.This study compares and analyzes the kinetics and kinematics of the koshiwari and squat with wide-stance(WSQ)to provide insight related to the mechanical features of the koshiwari.Optical three-dimensional automatic analysis instruments were used to measure movements of 11 men during exercises.A force platform was used to measure floor reactions.Two movements were analyzed:koshiwari and WSQ.The koshiwari and WSQ were compared as analytical objectives,using paired t-tests corresponding to correction joint angles,angular impulse,and joint torques with the level of significance set under 5%.Koshiwari was found to involve markedly greater excursions of abduction(maximum and minimum angle,correction angle to 20%-60%)and external rotation(maximum and minimum angle)at the hip compared with the WSQ,as well as markedly less hip flexion(maximum angle,correction angle 10%-90%)and torso forward tilt(maximum angle,correction angle 30%-100%).Koshiwari also involved greater extension-flexion axis,abduction-adduction axis,external rotation-internal rotation axis angular impulse and flexion(10%-100%),adduction(40%-60%),and external rotation(20%)torques at the hip than WSQ exercises.Results suggest that hip external rotation torque is attributable to hip external rotator muscle activity.The activity can apparently reduce the risk of ACL(Anterior cruciate ligament)injuries and patellofemoral pain syndrome and improve athletic performance.
