human
***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: Objective : To determine whether falls can be prevented with minimally supervised exercise targeting potentially remediable fall risk factors , i.e. , poor balance , reduced leg muscle strength , and freezing of gait , in people with Parkinson disease . Methods : Two hundred thirty-one people with Parkinson disease were r and omized into exercise or usual-care control groups . Exercises were practice d for 40 to 60 minutes , 3 times weekly for 6 months . Primary outcomes were fall rates and proportion of fallers during the intervention period . Secondary outcomes were physical ( balance , mobility , freezing of gait , habitual physical activity ) , psychological ( fear of falling , affect ) , and quality -of-life measures . Results : There was no significant difference between groups in the rate of falls ( incidence rate ratio [ IRR ] = 0.73 , 95 % confidence interval [ CI ] 0.45–1.17 , p = 0.18 ) or proportion of fallers ( p = 0.45 ) . Preplanned subgroup analysis revealed a significant interaction for disease severity ( p < 0.001 ) . In the lower disease severity subgroup , there were fewer falls in the exercise group compared with controls ( IRR = 0.31 , 95 % CI 0.15–0.62 , p < 0.001 ) , while in the higher disease severity subgroup , there was a trend toward more falls in the exercise group ( IRR = 1.61 , 95 % CI 0.86–3.03 , p = 0.13 ) . Postintervention , the exercise group scored significantly ( p < 0.05 ) better than controls on the Short Physical Performance Battery , sit-to-st and , fear of falling , affect , and quality of life , after adjusting for baseline performance . Conclusions : An exercise program targeting balance , leg strength , and freezing of gait did not reduce falls but improved physical and psychological health . Falls were reduced in people with milder disease but not in those with more severe Parkinson disease . Classification of evidence : This study provides Class III evidence that for patients with Parkinson disease , a minimally supervised exercise program does not reduce fall risk . This study lacked the precision to exclude a moderate reduction or modest increase in fall risk from exercise . Trial registration : Australian New Zeal and Clinical Trials Registry ( ACTRN12608000303347 ) Background People with idiopathic Parkinson ’s disease ( PD ) frequently have low activity levels , poor mobility and reduced quality of life . Although increased physical activity may improve mobility , balance and wellbeing , adherence to exercises and activity programs over the longer term can be challenging , particularly for older people with progressive neurological conditions such as PD . Physical activities that are engaging and enjoyable , such as dancing , might enhance adherence over the long term . The objective of this study was to evaluate the feasibility of a r and omized controlled trial of Irish set dancing compared with routine physiotherapy for people with mild to moderately severe PD . Methods Twenty-four people with idiopathic PD referred for movement rehabilitation were r and omized to receive  st and ard physiotherapy exercises or Irish set dancing classes  once per week plus a weekly home program for 6 months ( 12 in each group ) . The feasibility and safety of the proposed RCT protocol was the main focus of this evaluation . The primary outcome was motor disability measured by the motor component of the UPDRS , which was assessed prior to and after therapy by trained assessors blinded to group assignment . The Timed Up and Go , the Berg Balance Scale and the modified Freezing of Gait Question naire were secondary measures . Quality of life of the people with PD was evaluated using the PDQ-39 . Results Both the Irish set dancing and physiotherapy exercise program were shown to be feasible and safe . There were no differences between groups in the rate of adverse events such as falls , serious injuries , death or rates of admission to hospital . The physiotherapists who provided usual care remained blind to group allocation , with no change in their st and ard clinical practice . Compliance and adherence to both the exercise and dance programs were very high and attrition rates were low over the 6 months of therapy . Although improvements were made in both groups , the dance group showed superior results to st and ard physiotherapy in relation to freezing of gait , balance and motor disability . Conclusions Irish dancing and physiotherapy were both safe and feasible in this sample from Venice , with good adherence over a comparatively long time period of 6 months . A larger multi-centre trial is now warranted to establish whether Irish set dancing is more effective than routine physiotherapy for enhancing mobility , balance and quality of life in people living with idiopathic PD.Trial registration EudraCT number 2012 - 005769 - Purpose . To trial four-week 's physiotherapy targeting chair transfers for people with Parkinson 's disease ( PwPD ) and explore the feasibility of reliance on remote outcome measurement to preserve blinding . Scope . We recruited 47 PwPD and r and omised 24 to a focused home physiotherapy programme ( exercise , movement strategies , and cueing ) and 23 to a control group . We evaluated transfers ( plus mobility , balance , posture , and quality of life ) before and after treatment and at followup ( weeks 0 , 4 , 8 , and 12 ) from video produced by , and question naires distributed by , treating physiotherapists . Participants fed back via end-of- study question naires . Thirty-five participants ( 74 % ) completed the trial . Excluding dropouts , 20 % of question naire data and 9 % of video data were missing or unusable ; we had to evaluate balance in situ . We noted trends to improvement in transfers , mobility , and balance in the physiotherapy group not noted in the control group . Participant feedback was largely positive and assessor blinding was maintained in every case . Conclusions . Intense , focused physiotherapy at home appears acceptable and likely to bring positive change in those who can participate . Remote outcome measurement was successful ; question naire followup and further training in video production would reduce missing data . We advocate a fully powered trial , design ed to minimise dropouts and preserve assessor blinding , to evaluate this intervention BACKGROUND Patients with Parkinson 's disease have substantially impaired balance , leading to diminished functional ability and an increased risk of falling . Although exercise is routinely encouraged by health care providers , few programs have been proven effective . METHODS We conducted a r and omized , controlled trial to determine whether a tailored tai chi program could improve postural control in patients with idiopathic Parkinson 's disease . We r and omly assigned 195 patients with stage 1 to 4 disease on the Hoehn and Yahr staging scale ( which ranges from 1 to 5 , with higher stages indicating more severe disease ) to one of three groups : tai chi , resistance training , or stretching . The patients participated in 60-minute exercise sessions twice weekly for 24 weeks . The primary outcomes were changes from baseline in the limits-of-stability test ( maximum excursion and directional control ; range , 0 to 100 % ) . Secondary outcomes included measures of gait and strength , scores on functional-reach and timed up- and -go tests , motor scores on the Unified Parkinson 's Disease Rating Scale , and number of falls . RESULTS The tai chi group performed consistently better than the resistance-training and stretching groups in maximum excursion ( between-group difference in the change from baseline , 5.55 percentage points ; 95 % confidence interval [ CI ] , 1.12 to 9.97 ; and 11.98 percentage points ; 95 % CI , 7.21 to 16.74 , respectively ) and in directional control ( 10.45 percentage points ; 95 % CI , 3.89 to 17.00 ; and 11.38 percentage points ; 95 % CI , 5.50 to 17.27 , respectively ) . The tai chi group also performed better than the stretching group in all secondary outcomes and outperformed the resistance-training group in stride length and functional reach .  Tai chi lowered the incidence of falls as compared with stretching but not as compared with resistance training . The effects of tai chi training were maintained at 3 months after the intervention . No serious adverse events were observed . CONCLUSIONS Tai chi training appears to reduce balance impairments in patients with mild-to-moderate Parkinson 's disease , with additional benefits of improved functional capacity and reduced falls . ( Funded by the National Institute of Neurological Disorders and Stroke ; Clinical Trials.gov number , NCT00611481 . ) INTRODUCTION Pisa syndrome ( PS ) is a tonic lateral flexion of trunk that represents a disabling complication of advanced Parkinson disease ( PD ) . Conventional rehabilitation treatment ( CT ) ameliorates axial posture and trunk mobility in PD patients , but the improvement tends to wane in 4 - 6 months . Botulin toxin ( BT ) may reduce muscle hyperactivity , therefore improving CT effectiveness . We evaluated whether the injection of incabotulinum toxin type A ( iBTA ) into the hyperactive trunk muscles might improve the effectiveness of rehabilitation in a group of PD patients with PS . METHODS Twenty-six PD patients were enrolled in a r and omized placebo-controlled trial . Group A was treated with iBTA before undergoing CT ( a 4-week intensive programme ) , while Group B received saline before the 4-week CT treatment . Patients were evaluated at baseline , at the end of the rehabilitative period , 3 and 6 months with kinematic analysis of movement , UPDRS , Functional Independence Measure and Visual Analog Scale for pain . RESULTS At the end of the rehabilitation period , both groups improved significantly in terms of static postural alignment and of range of motion . Group A showed a significantly more marked reduction in pain score as compared with Group B and a more prolonged efficacy on several clinical and kinematic variables . CONCLUSIONS Our preliminary data suggest that BT may be considered an important addition to the rehabilitation programme for PD subjects with PS for improving axial posture and trunk mobility , as well as for a better control of pain Background Exercise confers short-term benefits for individuals with Parkinson disease ( PD ) . Objective The purpose of the study was to compare short- and long-term responses among 2 supervised exercise programs and a home-based control exercise program . Design The 16-month r and omized controlled exercise intervention investigated 3 exercise approaches : flexibility/balance/function exercise ( FBF ) , supervised aerobic exercise ( AE ) , and home-based exercise ( control ) . Setting This study was conducted in outpatient clinics . Patients The participants were 121 individuals with PD ( Hoehn & Yahr stages 1–3 ) . Interventions The FBF program ( individualized spinal and extremity flexibility exercises followed by group balance/functional training ) was supervised by a physical therapist . The AE program ( using a treadmill , bike , or elliptical trainer ) was supervised by an exercise trainer . Supervision was provided 3 days per week for 4 months , and then monthly ( 16 months total ) . The control group participants exercised at home using the National Parkinson Foundation Fitness Counts program , with 1 supervised , clinic-based group session per month . Measurements Outcomes , obtained by blinded assessors , were determined at 4 , 10 , and 16 months . The primary outcome measures were overall physical function ( Continuous Scale — Physical Functional Performance [ CS-PFP ] ) , balance ( Functional Reach Test [ FRT ] ) , and walking economy ( oxygen uptake [ mL/kg/min ] ) . Secondary outcome measures were symptom severity ( Unified Parkinson 's Disease Rating Scale [ UPDRS ] activities of daily living [ ADL ] and motor subscales ) and quality of life ( 39-item Parkinson 's Disease Quality of Life Scale [ PDQ-39 ] ) . Results Of the 121 participants , 86.8 % , 82.6 % , and 79.3 % completed 4 , 10 , and 16 months , respectively , of the intervention . At 4 months , improvement in CS-PFP scores was greater in the FBF group than in the control group ( mean difference=4.3 , 95 % confidence interval [CI]=1.2 to 7.3 ) and the AE group ( mean difference=3.1 , 95 % CI=0.0 to 6.2 ) . Balance was not different among groups at any time point . Walking economy improved in the AE group compared with the FBF group at 4 months ( mean difference=−1.2 , 95 % CI=−1.9 to −0.5 ) , 10 months ( mean difference=−1.2 , 95 % CI=−1.9 to −0.5 ) , and 16 months ( mean difference=−1.7 , 95 % CI=−2.5 to −1.0 ) . The only secondary outcome that showed significant differences was UPDRS ADL subscale scores : the FBF group performed better than the control group at 4 months ( mean difference=−1.47 , 95 % CI=−2.79 to −0.15 ) and 16 months ( mean difference=−1.95 , 95 % CI=−3.84 to −0.08 ) . Limitations Absence of a non-exercise control group was a limitation of the study . Conclusions Findings demonstrated overall functional benefits at 4 months in the FBF group and improved walking economy ( up to 16 months ) in the AE group Background . Fear of falling has been identified as an important and independent fall-risk predictor in patients with Parkinson ’s disease ( PD ) . However , there are inconsistent findings on the effects of balance and gait training on balance confidence . Objective . To explore whether balance and gait training with augmented feedback can enhance balance confidence in PD patients immediately after treatment and at 3- and 12-month follow-ups . Methods . A total of 51 PD patients were r and omly assigned to a balance and gait training ( BAL ) group or to an active control ( CON ) group . The BAL group 
    Output:
    
agent
Conclusion ] Different methods , such as scales , tests , and equipment , are used for the evaluation of balance in patients with Parkinson 's disease .
***TASK*** the task is to summarize an input biomedical literature in six sentences 
    ***INPUT*** the input is a biomedical literature 
    ***OUTPUT*** the output is the summary of an input biomedical literature in six sentences 
    ***DOCUMENTATION*** 
    ***EXAMPLES*** 
    Input: Objective : To determine whether falls can be prevented with minimally supervised exercise targeting potentially remediable fall risk factors , i.e. , poor balance , reduced leg muscle strength , and freezing of gait , in people with Parkinson disease . Methods : Two hundred thirty-one people with Parkinson disease were r and omized into exercise or usual-care control groups . Exercises were practice d for 40 to 60 minutes , 3 times weekly for 6 months . Primary outcomes were fall rates and proportion of fallers during the intervention period . Secondary outcomes were physical ( balance , mobility , freezing of gait , habitual physical activity ) , psychological ( fear of falling , affect ) , and quality -of-life measures . Results : There was no significant difference between groups in the rate of falls ( incidence rate ratio [ IRR ] = 0.73 , 95 % confidence interval [ CI ] 0.45–1.17 , p = 0.18 ) or proportion of fallers ( p = 0.45 ) . Preplanned subgroup analysis revealed a significant interaction for disease severity ( p < 0.001 ) . In the lower disease severity subgroup , there were fewer falls in the exercise group compared with controls ( IRR = 0.31 , 95 % CI 0.15–0.62 , p < 0.001 ) , while in the higher disease severity subgroup , there was a trend toward more falls in the exercise group ( IRR = 1.61 , 95 % CI 0.86–3.03 , p = 0.13 ) . Postintervention , the exercise group scored significantly ( p < 0.05 ) better than controls on the Short Physical Performance Battery , sit-to-st and , fear of falling , affect , and quality of life , after adjusting for baseline performance . Conclusions : An exercise program targeting balance , leg strength , and freezing of gait did not reduce falls but improved physical and psychological health . Falls were reduced in people with milder disease but not in those with more severe Parkinson disease . Classification of evidence : This study provides Class III evidence that for patients with Parkinson disease , a minimally supervised exercise program does not reduce fall risk . This study lacked the precision to exclude a moderate reduction or modest increase in fall risk from exercise . Trial registration : Australian New Zeal and Clinical Trials Registry ( ACTRN12608000303347 ) Background People with idiopathic Parkinson ’s disease ( PD ) frequently have low activity levels , poor mobility and reduced quality of life . Although increased physical activity may improve mobility , balance and wellbeing , adherence to exercises and activity programs over the longer term can be challenging , particularly for older people with progressive neurological conditions such as PD . Physical activities that are engaging and enjoyable , such as dancing , might enhance adherence over the long term . The objective of this study was to evaluate the feasibility of a r and omized controlled trial of Irish set dancing compared with routine physiotherapy for people with mild to moderately severe PD . Methods Twenty-four people with idiopathic PD referred for movement rehabilitation were r and omized to receive  st and ard physiotherapy exercises or Irish set dancing classes  once per week plus a weekly home program for 6 months ( 12 in each group ) . The feasibility and safety of the proposed RCT protocol was the main focus of this evaluation . The primary outcome was motor disability measured by the motor component of the UPDRS , which was assessed prior to and after therapy by trained assessors blinded to group assignment . The Timed Up and Go , the Berg Balance Scale and the modified Freezing of Gait Question naire were secondary measures . Quality of life of the people with PD was evaluated using the PDQ-39 . Results Both the Irish set dancing and physiotherapy exercise program were shown to be feasible and safe . There were no differences between groups in the rate of adverse events such as falls , serious injuries , death or rates of admission to hospital . The physiotherapists who provided usual care remained blind to group allocation , with no change in their st and ard clinical practice . Compliance and adherence to both the exercise and dance programs were very high and attrition rates were low over the 6 months of therapy . Although improvements were made in both groups , the dance group showed superior results to st and ard physiotherapy in relation to freezing of gait , balance and motor disability . Conclusions Irish dancing and physiotherapy were both safe and feasible in this sample from Venice , with good adherence over a comparatively long time period of 6 months . A larger multi-centre trial is now warranted to establish whether Irish set dancing is more effective than routine physiotherapy for enhancing mobility , balance and quality of life in people living with idiopathic PD.Trial registration EudraCT number 2012 - 005769 - Purpose . To trial four-week 's physiotherapy targeting chair transfers for people with Parkinson 's disease ( PwPD ) and explore the feasibility of reliance on remote outcome measurement to preserve blinding . Scope . We recruited 47 PwPD and r and omised 24 to a focused home physiotherapy programme ( exercise , movement strategies , and cueing ) and 23 to a control group . We evaluated transfers ( plus mobility , balance , posture , and quality of life ) before and after treatment and at followup ( weeks 0 , 4 , 8 , and 12 ) from video produced by , and question naires distributed by , treating physiotherapists . Participants fed back via end-of- study question naires . Thirty-five participants ( 74 % ) completed the trial . Excluding dropouts , 20 % of question naire data and 9 % of video data were missing or unusable ; we had to evaluate balance in situ . We noted trends to improvement in transfers , mobility , and balance in the physiotherapy group not noted in the control group . Participant feedback was largely positive and assessor blinding was maintained in every case . Conclusions . Intense , focused physiotherapy at home appears acceptable and likely to bring positive change in those who can participate . Remote outcome measurement was successful ; question naire followup and further training in video production would reduce missing data . We advocate a fully powered trial , design ed to minimise dropouts and preserve assessor blinding , to evaluate this intervention BACKGROUND Patients with Parkinson 's disease have substantially impaired balance , leading to diminished functional ability and an increased risk of falling . Although exercise is routinely encouraged by health care providers , few programs have been proven effective . METHODS We conducted a r and omized , controlled trial to determine whether a tailored tai chi program could improve postural control in patients with idiopathic Parkinson 's disease . We r and omly assigned 195 patients with stage 1 to 4 disease on the Hoehn and Yahr staging scale ( which ranges from 1 to 5 , with higher stages indicating more severe disease ) to one of three groups : tai chi , resistance training , or stretching . The patients participated in 60-minute exercise sessions twice weekly for 24 weeks . The primary outcomes were changes from baseline in the limits-of-stability test ( maximum excursion and directional control ; range , 0 to 100 % ) . Secondary outcomes included measures of gait and strength , scores on functional-reach and timed up- and -go tests , motor scores on the Unified Parkinson 's Disease Rating Scale , and number of falls . RESULTS The tai chi group performed consistently better than the resistance-training and stretching groups in maximum excursion ( between-group difference in the change from baseline , 5.55 percentage points ; 95 % confidence interval [ CI ] , 1.12 to 9.97 ; and 11.98 percentage points ; 95 % CI , 7.21 to 16.74 , respectively ) and in directional control ( 10.45 percentage points ; 95 % CI , 3.89 to 17.00 ; and 11.38 percentage points ; 95 % CI , 5.50 to 17.27 , respectively ) . The tai chi group also performed better than the stretching group in all secondary outcomes and outperformed the resistance-training group in stride length and functional reach .  Tai chi lowered the incidence of falls as compared with stretching but not as compared with resistance training . The effects of tai chi training were maintained at 3 months after the intervention . No serious adverse events were observed . CONCLUSIONS Tai chi training appears to reduce balance impairments in patients with mild-to-moderate Parkinson 's disease , with additional benefits of improved functional capacity and reduced falls . ( Funded by the National Institute of Neurological Disorders and Stroke ; Clinical Trials.gov number , NCT00611481 . ) INTRODUCTION Pisa syndrome ( PS ) is a tonic lateral flexion of trunk that represents a disabling complication of advanced Parkinson disease ( PD ) . Conventional rehabilitation treatment ( CT ) ameliorates axial posture and trunk mobility in PD patients , but the improvement tends to wane in 4 - 6 months . Botulin toxin ( BT ) may reduce muscle hyperactivity , therefore improving CT effectiveness . We evaluated whether the injection of incabotulinum toxin type A ( iBTA ) into the hyperactive trunk muscles might improve the effectiveness of rehabilitation in a group of PD patients with PS . METHODS Twenty-six PD patients were enrolled in a r and omized placebo-controlled trial . Group A was treated with iBTA before undergoing CT ( a 4-week intensive programme ) , while Group B received saline before the 4-week CT treatment . Patients were evaluated at baseline , at the end of the rehabilitative period , 3 and 6 months with kinematic analysis of movement , UPDRS , Functional Independence Measure and Visual Analog Scale for pain . RESULTS At the end of the rehabilitation period , both groups improved significantly in terms of static postural alignment and of range of motion . Group A showed a significantly more marked reduction in pain score as compared with Group B and a more prolonged efficacy on several clinical and kinematic variables . CONCLUSIONS Our preliminary data suggest that BT may be considered an important addition to the rehabilitation programme for PD subjects with PS for improving axial posture and trunk mobility , as well as for a better control of pain Background Exercise confers short-term benefits for individuals with Parkinson disease ( PD ) . Objective The purpose of the study was to compare short- and long-term responses among 2 supervised exercise programs and a home-based control exercise program . Design The 16-month r and omized controlled exercise intervention investigated 3 exercise approaches : flexibility/balance/function exercise ( FBF ) , supervised aerobic exercise ( AE ) , and home-based exercise ( control ) . Setting This study was conducted in outpatient clinics . Patients The participants were 121 individuals with PD ( Hoehn & Yahr stages 1–3 ) . Interventions The FBF program ( individualized spinal and extremity flexibility exercises followed by group balance/functional training ) was supervised by a physical therapist . The AE program ( using a treadmill , bike , or elliptical trainer ) was supervised by an exercise trainer . Supervision was provided 3 days per week for 4 months , and then monthly ( 16 months total ) . The control group participants exercised at home using the National Parkinson Foundation Fitness Counts program , with 1 supervised , clinic-based group session per month . Measurements Outcomes , obtained by blinded assessors , were determined at 4 , 10 , and 16 months . The primary outcome measures were overall physical function ( Continuous Scale — Physical Functional Performance [ CS-PFP ] ) , balance ( Functional Reach Test [ FRT ] ) , and walking economy ( oxygen uptake [ mL/kg/min ] ) . Secondary outcome measures were symptom severity ( Unified Parkinson 's Disease Rating Scale [ UPDRS ] activities of daily living [ ADL ] and motor subscales ) and quality of life ( 39-item Parkinson 's Disease Quality of Life Scale [ PDQ-39 ] ) . Results Of the 121 participants , 86.8 % , 82.6 % , and 79.3 % completed 4 , 10 , and 16 months , respectively , of the intervention . At 4 months , improvement in CS-PFP scores was greater in the FBF group than in the control group ( mean difference=4.3 , 95 % confidence interval [CI]=1.2 to 7.3 ) and the AE group ( mean difference=3.1 , 95 % CI=0.0 to 6.2 ) . Balance was not different among groups at any time point . Walking economy improved in the AE group compared with the FBF group at 4 months ( mean difference=−1.2 , 95 % CI=−1.9 to −0.5 ) , 10 months ( mean difference=−1.2 , 95 % CI=−1.9 to −0.5 ) , and 16 months ( mean difference=−1.7 , 95 % CI=−2.5 to −1.0 ) . The only secondary outcome that showed significant differences was UPDRS ADL subscale scores : the FBF group performed better than the control group at 4 months ( mean difference=−1.47 , 95 % CI=−2.79 to −0.15 ) and 16 months ( mean difference=−1.95 , 95 % CI=−3.84 to −0.08 ) . Limitations Absence of a non-exercise control group was a limitation of the study . Conclusions Findings demonstrated overall functional benefits at 4 months in the FBF group and improved walking economy ( up to 16 months ) in the AE group Background . Fear of falling has been identified as an important and independent fall-risk predictor in patients with Parkinson ’s disease ( PD ) . However , there are inconsistent findings on the effects of balance and gait training on balance confidence . Objective . To explore whether balance and gait training with augmented feedback can enhance balance confidence in PD patients immediately after treatment and at 3- and 12-month follow-ups . Methods . A total of 51 PD patients were r and omly assigned to a balance and gait training ( BAL ) group or to an active control ( CON ) group . The BAL group 
    Output:
    