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: Background Patients with acute leukemia experience a substantial symptom burden and are at risk of developing infections throughout the course of repeated cycles of intensive chemotherapy . Physical activity in recent years has been a strategy for rehabilitation in cancer patients to remedy disease and treatment related symptoms and side effects . To date , there are no clinical practice exercise guidelines for patients with acute leukemia undergoing induction and consolidation chemotherapy . A r and omized controlled trial is needed to determine if patients with acute leukemia can benefit by a structured and supervised counseling and exercise program . Methods / design This paper presents the study protocol : Patient Activation through Counseling and Exercise – Acute Leukemia ( PACE-AL ) trial , a two center , r and omized controlled trial of 70 patients with acute leukemia ( 35 patients / study arm ) following induction chemotherapy in the outpatient setting . Eligible patients will be r and omized to usual care or to the 12 week exercise and counseling program .  The intervention includes 3 hours + 30 minutes per week of supervised and structured aerobic training ( moderate to high intensity 70 - 80 % ) on an ergometer cycle , strength exercises using h and weights and relaxation exercise . Individual health counseling sessions include a self directed home walk program with a step counter . The primary endpoint is functional performance/exercise capacity ( 6 minute walk distance ) . The secondary endpoints are submaximal VO2 max test , sit to st and and bicep curl test , physical activity levels , patient reported outcomes ( quality of life , anxiety and depression , symptom prevalence , intensity and interference ) . Evaluation of clinical outcomes will be explored including incidence of infection , hospitalization days , body mass index , time to recurrence and survival . Qualitative exploration of patients ’ health behavior and experiences . Discussion PACE-AL will provide evidence of the effect of exercise and health promotion counseling on functional and physical capacity , the symptom burden and quality of life in patients with acute leukemia during out patient management . The results will inform clinical practice exercise guidelines and rehabilitation programs for patients undergoing treatment for acute leukemia . Optimizing the treatment and care pathway may ease the transition for patients from illness to the resumption of everyday activities . Trial registration Clinical Trials.gov Identifier : NCT01404520 Background : Despite thous and s of papers , the value of quality of life ( QoL ) in curing disease remains uncertain . Until now , we lacked tools for the diagnosis and specific treatment of diseased QoL. We approached this problem stepwise by theory building , modelling , an exploratory trial and now a definitive r and omised controlled trial ( RCT ) in breast cancer , whose results we report here . Methods : In all , 200 representative Bavarian primary breast cancer patients were recruited by five hospitals and treated by 146 care professionals . Patients were r and omised to either ( 1 ) a novel care pathway including diagnosis of ‘ diseased ’ QoL ( any QoL measure below 50 points ) using a QoL profile and expert report sent to the patient 's coordinating practitioner , who arranged QoL therapy consisting of up to five st and ardised treatments for specific QoL defects or ( 2 ) st and ard postoperative care adhering to the German national guideline for breast cancer . The primary end point was the proportion of patients in each group with diseased QoL 6 months after surgery . Patients were blinded to their allocated group . Results : At 0 and 3 months after surgery , diseased QoL was diagnosed in 70 % of patients . The QoL pathway reduced rates of diseased QoL to 56 % at 6 months , especially in emotion and coping , compared with 71 % in controls ( P=0.048 ) . Relative risk reduction was 21 % ( 95 % confidence interval ( CI ) : 0–37 ) , absolute risk reduction 15 % ( 95 % CI : 0.3–29 ) , number needed to treat (NNT)=7 ( 95 % CI : 3–37 ) . When QoL therapy finished after successful treatment , diseased QoL often returned again , indicating good responsiveness of the QoL pathway . Conclusion : A three-component outcome system including clinician-derived objective , patient-reported subjective end points and qualitative analysis of clinical relevance was developed in the last 10 years for cancer as a complex intervention . A separate QoL pathway was implemented for the diagnosis and treatment of diseased QoL and its effectiveness tested in a community-based , pragmatic , definitive RCT . While the pathway was active , it was effective with an NNT of 7 PURPOSE The aims of this pilot study were the following : 1 ) to examine patterns of adherence to a brisk walking program in women receiving adjuvant chemotherapy or radiation therapy for newly diagnosed breast cancer using a prospect i ve , r and omized , controlled experimental design ; 2 ) to examine the influence of disease symptoms and treatment side effects on exercise levels ; and 3 ) to suggest methods that may improve future clinical trials of moderate-intensity exercise in similar population s. DESCRIPTION OF STUDY Fifty-two patients with newly diagnosed breast cancer were r and omly assigned to one of two treatment arms : usual care or usual care plus exercise . Those assigned to the exercise group received a st and ardized , self-administered , home-based brisk walking intervention in addition to usual care . Each day subjects completed self-report diary forms that elicited information about activity levels , and the occurrence of symptoms and side effects during cancer treatment . RESULTS Analyses of self-reported daily activity levels revealed a diffusion of treatment effect . Fifty percent of the usual-care group reported maintaining or increasing their physical activity to a moderate-intensity level , while 33 % of the exercise group did not exercise at the prescribed levels . Analyses of self-reported disease symptoms and treatment side effects did not reveal clinical ly meaningful differences between the two groups . CLINICAL IMPLICATION S The results of this study suggest that women who exercised regularly before receiving a breast cancer diagnosis attempted to maintain their exercise programs . Women who lead sedentary lifestyles may benefit from a structured exercise program that includes information and support related to exercise adherence strategies OBJECTIVE To examine the changes from a combined exercise intervention after radical prostatectomy ( RP ) in elderly patients with prostate cancer , because r and omized controlled trials addressing exercise intervention after RP have been lacking . METHODS From May 2009 to May 2010 , all patients who underwent laparoscopic RP were assessed for eligibility . A total of 66 patients were r and omized to an exercise or a control group . The exercise group received a combined exercise intervention ( resistance , flexibility , and Kegel exercises ) twice a week for 12 weeks , and the control group received only Kegel exercises . The primary outcome was physical function , and the secondary outcomes were continence status and quality of life after the exercise intervention . RESULTS A total of 49 patients completed follow-up to the end of study . After the 12-week exercise intervention , except for grip strength , all physical functions were better in the exercise group than in the control group . The 24-hour pad test results ( 12.2 g in the exercise group , 46.2 g in the control group ) and continence rate ( 73.1 % in exercise group , 43.5 % in the control group ) recovered more promptly in the exercise group . On a question naire study using the International Consultation on Incontinence question naire , Beck Depression Inventory , and Medical Outcomes Study 36-item short-form health survey , only the exercise group showed improvement at the last follow-up visit . CONCLUSION A 12-week combined exercise intervention after RP results in improvement of physical function , continence rate , and quality of life . These results could help with prompt recovery of daily activities This pilot study examined the efficacy of two home-based exercise programs on alleviating fatigue and improving functional capacity in breast cancer survivors . Participants were r and omly assigned into one of three groups : aerobic exercise ( AE ) , resistance exercise ( RE ) , or usual care control ( CON ) . After receiving individualized instruction and training , participants assigned to the AE and RE groups were asked to perform the prescribed exercise(s ) 3 times per week for 12 weeks at home . Both groups were instructed to keep their perceived exercise intensity in the " fairly light " to " somewhat hard " range using the Borg Perceived Exertion Scale . All participants completed the revised Piper Fatigue Scale ( PFS ) and the 6-minute walk test ( 6MWT ) at baseline and 12-week post-exercise program . Analysis of pre- and post-training data revealed a significant reduction in fatigue levels on the PFS among participants in the AE group ( Z=2.521 , one-tailed P=0.006 ) , and a significant improvement in the distance of the 6MWT for the RE group ( Z=2.366 , one-tailed P=0.009 ) at the end of 12-week study period . No significant changes in fatigue or functional status were observed in the CON group . Findings provide preliminary support for RE as a viable strategy for improving functional capacity in breast cancer survivors , while AE may be more effective in attenuating cancer-related fatigue . Incorporating RE training for future research may help advance the growing body of knowledge in symptom management for breast cancer survivors Background To examine the effects of a 6 month lifestyle intervention on quality of life , depression , self-efficacy and eating behavior changes in overweight and obese endometrial cancer survivors . Methods Early stage endometrial cancer survivors were r and omized to intervention ( n = 23 ) or usual care ( n = 22 ) groups . Chi-square , Student 's t-test and repeated measures analysis of variance were used in intent-to-treat analyses . Outcomes were also examined according to weight loss . Results Morbidly obese patients had significantly lower self-efficacy , specifically when feeling physical discomfort . There was a significant improvement for self-efficacy related to social pressure ( p = .03 ) and restraint ( p = .02 ) in the LI group . There was a significant difference for emotional well-being quality of life ( p = .02 ) , self-efficacy related to negative emotions ( p < .01 ) , food availability ( p = .03 ) , and physical discomfort ( p = .01 ) in women who lost weight as compared to women who gained weight . Improvement in restraint was also reported in women who lost weight ( p < .01 ) . Conclusion This pilot lifestyle intervention had no effect on quality of life or depression but did improve self-efficacy and some eating behaviors . Trial Registration http://www . clinical trials.gov ; BACKGROUND Telomeres are protective DNA-protein complexes at the end of linear chromosomes that promote chromosomal stability . Telomere shortness in human beings is emerging as a prognostic marker of disease risk , progression , and premature mortality in many types of cancer , including breast , prostate , colorectal , bladder , head and neck , lung , and renal cell . Telomere shortening is counteracted by the cellular enzyme telomerase . Lifestyle factors known to promote cancer and cardiovascular disease might also adversely affect telomerase function . However , previous studies have not addressed whether improvements in nutrition and lifestyle are associated with increases in telomerase activity . We aim ed to assess whether 3 months of intensive lifestyle changes increased telomerase activity in peripheral blood mononuclear cells ( P BMC ) . METHODS 30 men with biopsy-diagnosed low-risk prostate cancer were asked to make comprehensive lifestyle changes . The primary endpoint was telomerase enzymatic activity per viable cell , measured at baseline and after 3 months . 24 patients had sufficient P BMC s needed for longitudinal analysis . This study is registered on the Clinical Trials.gov website , number NCT00739791 . FINDINGS P BMC telomerase activity expressed as natural logarithms increased from 2.00 ( SD 0.44 ) to 2.22 ( SD 0.49 ; p=0.031 ) . Raw values of telomerase increased from 8.05 ( SD 3.50 ) st and ard arbitrary units to 10.38 ( SD 6.01 ) st and ard arbitrary units . The increases in telomerase activity were significantly associated with decreases in low-density lipoprotein ( LDL ) cholesterol ( r=-0.36 , p=0.041 ) and decreases in psychological distress ( r=-0.35 , p=0.047 ) . INTERPRETATION Comprehensive lifestyle changes significantly increase telomerase activity and consequently telomere maintenance capacity in human immune-system cells . Given this finding and the pilot nature of this study , we report these increases in telomerase activity as a significant association rather than inferring causation . Larger r and omised controlled trials are warranted to confirm the findings of this study Goals of workProstate cancer patients receiving and rogen deprivation therapy ( ADT )  are vulnerable to a number of potentially debilitating side effects , which can significantly impact quality of life . The role of alternate therapies , such as physical activity ( PA ) , in attenuating these side effects is largely understudied for such a large population . Thus , the purpose of this study was to investigate the effects of PA intervention for men receiving ADT on PA behavior , quality of life , and fitness measures . Patients and methods One hundred participants were r and omized into an intervention ( n = 53 ) or a wait-list control group ( n = 47 ) , with 11 dropping out of the intervention group and 23 dropping out of the wait-list control group prior to post-testing . The intervention consisted of both an individually tailored home-based aerobic and light resistant training program and weekly group sessions .  PA , quality of life , fitness , and physiological outcomes were assessed pre and post the 16-week intervention . Results Significant increases in PA , supported by changes in girth measures and blood pressure , support the beneficial impact of the intervention . Positive trends were also evident for depression and fatigue . However 
    Output:
    
agent
Interventions to promote exercise in cancer survivors who report better levels of adherence share some common behaviour change techniques .
These involve setting programme goals , prompting practise and self-monitoring and encouraging participants to attempt to generalise behaviours learned in supervised exercise environments to other , non-supervised context s. However , expecting most sedentary survivors to achieve current guideline recommendations of at least 150 minutes per week of aerobic exercise is likely to be unrealistic .
***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: Background Patients with acute leukemia experience a substantial symptom burden and are at risk of developing infections throughout the course of repeated cycles of intensive chemotherapy . Physical activity in recent years has been a strategy for rehabilitation in cancer patients to remedy disease and treatment related symptoms and side effects . To date , there are no clinical practice exercise guidelines for patients with acute leukemia undergoing induction and consolidation chemotherapy . A r and omized controlled trial is needed to determine if patients with acute leukemia can benefit by a structured and supervised counseling and exercise program . Methods / design This paper presents the study protocol : Patient Activation through Counseling and Exercise – Acute Leukemia ( PACE-AL ) trial , a two center , r and omized controlled trial of 70 patients with acute leukemia ( 35 patients / study arm ) following induction chemotherapy in the outpatient setting . Eligible patients will be r and omized to usual care or to the 12 week exercise and counseling program .  The intervention includes 3 hours + 30 minutes per week of supervised and structured aerobic training ( moderate to high intensity 70 - 80 % ) on an ergometer cycle , strength exercises using h and weights and relaxation exercise . Individual health counseling sessions include a self directed home walk program with a step counter . The primary endpoint is functional performance/exercise capacity ( 6 minute walk distance ) . The secondary endpoints are submaximal VO2 max test , sit to st and and bicep curl test , physical activity levels , patient reported outcomes ( quality of life , anxiety and depression , symptom prevalence , intensity and interference ) . Evaluation of clinical outcomes will be explored including incidence of infection , hospitalization days , body mass index , time to recurrence and survival . Qualitative exploration of patients ’ health behavior and experiences . Discussion PACE-AL will provide evidence of the effect of exercise and health promotion counseling on functional and physical capacity , the symptom burden and quality of life in patients with acute leukemia during out patient management . The results will inform clinical practice exercise guidelines and rehabilitation programs for patients undergoing treatment for acute leukemia . Optimizing the treatment and care pathway may ease the transition for patients from illness to the resumption of everyday activities . Trial registration Clinical Trials.gov Identifier : NCT01404520 Background : Despite thous and s of papers , the value of quality of life ( QoL ) in curing disease remains uncertain . Until now , we lacked tools for the diagnosis and specific treatment of diseased QoL. We approached this problem stepwise by theory building , modelling , an exploratory trial and now a definitive r and omised controlled trial ( RCT ) in breast cancer , whose results we report here . Methods : In all , 200 representative Bavarian primary breast cancer patients were recruited by five hospitals and treated by 146 care professionals . Patients were r and omised to either ( 1 ) a novel care pathway including diagnosis of ‘ diseased ’ QoL ( any QoL measure below 50 points ) using a QoL profile and expert report sent to the patient 's coordinating practitioner , who arranged QoL therapy consisting of up to five st and ardised treatments for specific QoL defects or ( 2 ) st and ard postoperative care adhering to the German national guideline for breast cancer . The primary end point was the proportion of patients in each group with diseased QoL 6 months after surgery . Patients were blinded to their allocated group . Results : At 0 and 3 months after surgery , diseased QoL was diagnosed in 70 % of patients . The QoL pathway reduced rates of diseased QoL to 56 % at 6 months , especially in emotion and coping , compared with 71 % in controls ( P=0.048 ) . Relative risk reduction was 21 % ( 95 % confidence interval ( CI ) : 0–37 ) , absolute risk reduction 15 % ( 95 % CI : 0.3–29 ) , number needed to treat (NNT)=7 ( 95 % CI : 3–37 ) . When QoL therapy finished after successful treatment , diseased QoL often returned again , indicating good responsiveness of the QoL pathway . Conclusion : A three-component outcome system including clinician-derived objective , patient-reported subjective end points and qualitative analysis of clinical relevance was developed in the last 10 years for cancer as a complex intervention . A separate QoL pathway was implemented for the diagnosis and treatment of diseased QoL and its effectiveness tested in a community-based , pragmatic , definitive RCT . While the pathway was active , it was effective with an NNT of 7 PURPOSE The aims of this pilot study were the following : 1 ) to examine patterns of adherence to a brisk walking program in women receiving adjuvant chemotherapy or radiation therapy for newly diagnosed breast cancer using a prospect i ve , r and omized , controlled experimental design ; 2 ) to examine the influence of disease symptoms and treatment side effects on exercise levels ; and 3 ) to suggest methods that may improve future clinical trials of moderate-intensity exercise in similar population s. DESCRIPTION OF STUDY Fifty-two patients with newly diagnosed breast cancer were r and omly assigned to one of two treatment arms : usual care or usual care plus exercise . Those assigned to the exercise group received a st and ardized , self-administered , home-based brisk walking intervention in addition to usual care . Each day subjects completed self-report diary forms that elicited information about activity levels , and the occurrence of symptoms and side effects during cancer treatment . RESULTS Analyses of self-reported daily activity levels revealed a diffusion of treatment effect . Fifty percent of the usual-care group reported maintaining or increasing their physical activity to a moderate-intensity level , while 33 % of the exercise group did not exercise at the prescribed levels . Analyses of self-reported disease symptoms and treatment side effects did not reveal clinical ly meaningful differences between the two groups . CLINICAL IMPLICATION S The results of this study suggest that women who exercised regularly before receiving a breast cancer diagnosis attempted to maintain their exercise programs . Women who lead sedentary lifestyles may benefit from a structured exercise program that includes information and support related to exercise adherence strategies OBJECTIVE To examine the changes from a combined exercise intervention after radical prostatectomy ( RP ) in elderly patients with prostate cancer , because r and omized controlled trials addressing exercise intervention after RP have been lacking . METHODS From May 2009 to May 2010 , all patients who underwent laparoscopic RP were assessed for eligibility . A total of 66 patients were r and omized to an exercise or a control group . The exercise group received a combined exercise intervention ( resistance , flexibility , and Kegel exercises ) twice a week for 12 weeks , and the control group received only Kegel exercises . The primary outcome was physical function , and the secondary outcomes were continence status and quality of life after the exercise intervention . RESULTS A total of 49 patients completed follow-up to the end of study . After the 12-week exercise intervention , except for grip strength , all physical functions were better in the exercise group than in the control group . The 24-hour pad test results ( 12.2 g in the exercise group , 46.2 g in the control group ) and continence rate ( 73.1 % in exercise group , 43.5 % in the control group ) recovered more promptly in the exercise group . On a question naire study using the International Consultation on Incontinence question naire , Beck Depression Inventory , and Medical Outcomes Study 36-item short-form health survey , only the exercise group showed improvement at the last follow-up visit . CONCLUSION A 12-week combined exercise intervention after RP results in improvement of physical function , continence rate , and quality of life . These results could help with prompt recovery of daily activities This pilot study examined the efficacy of two home-based exercise programs on alleviating fatigue and improving functional capacity in breast cancer survivors . Participants were r and omly assigned into one of three groups : aerobic exercise ( AE ) , resistance exercise ( RE ) , or usual care control ( CON ) . After receiving individualized instruction and training , participants assigned to the AE and RE groups were asked to perform the prescribed exercise(s ) 3 times per week for 12 weeks at home . Both groups were instructed to keep their perceived exercise intensity in the " fairly light " to " somewhat hard " range using the Borg Perceived Exertion Scale . All participants completed the revised Piper Fatigue Scale ( PFS ) and the 6-minute walk test ( 6MWT ) at baseline and 12-week post-exercise program . Analysis of pre- and post-training data revealed a significant reduction in fatigue levels on the PFS among participants in the AE group ( Z=2.521 , one-tailed P=0.006 ) , and a significant improvement in the distance of the 6MWT for the RE group ( Z=2.366 , one-tailed P=0.009 ) at the end of 12-week study period . No significant changes in fatigue or functional status were observed in the CON group . Findings provide preliminary support for RE as a viable strategy for improving functional capacity in breast cancer survivors , while AE may be more effective in attenuating cancer-related fatigue . Incorporating RE training for future research may help advance the growing body of knowledge in symptom management for breast cancer survivors Background To examine the effects of a 6 month lifestyle intervention on quality of life , depression , self-efficacy and eating behavior changes in overweight and obese endometrial cancer survivors . Methods Early stage endometrial cancer survivors were r and omized to intervention ( n = 23 ) or usual care ( n = 22 ) groups . Chi-square , Student 's t-test and repeated measures analysis of variance were used in intent-to-treat analyses . Outcomes were also examined according to weight loss . Results Morbidly obese patients had significantly lower self-efficacy , specifically when feeling physical discomfort . There was a significant improvement for self-efficacy related to social pressure ( p = .03 ) and restraint ( p = .02 ) in the LI group . There was a significant difference for emotional well-being quality of life ( p = .02 ) , self-efficacy related to negative emotions ( p < .01 ) , food availability ( p = .03 ) , and physical discomfort ( p = .01 ) in women who lost weight as compared to women who gained weight . Improvement in restraint was also reported in women who lost weight ( p < .01 ) . Conclusion This pilot lifestyle intervention had no effect on quality of life or depression but did improve self-efficacy and some eating behaviors . Trial Registration http://www . clinical trials.gov ; BACKGROUND Telomeres are protective DNA-protein complexes at the end of linear chromosomes that promote chromosomal stability . Telomere shortness in human beings is emerging as a prognostic marker of disease risk , progression , and premature mortality in many types of cancer , including breast , prostate , colorectal , bladder , head and neck , lung , and renal cell . Telomere shortening is counteracted by the cellular enzyme telomerase . Lifestyle factors known to promote cancer and cardiovascular disease might also adversely affect telomerase function . However , previous studies have not addressed whether improvements in nutrition and lifestyle are associated with increases in telomerase activity . We aim ed to assess whether 3 months of intensive lifestyle changes increased telomerase activity in peripheral blood mononuclear cells ( P BMC ) . METHODS 30 men with biopsy-diagnosed low-risk prostate cancer were asked to make comprehensive lifestyle changes . The primary endpoint was telomerase enzymatic activity per viable cell , measured at baseline and after 3 months . 24 patients had sufficient P BMC s needed for longitudinal analysis . This study is registered on the Clinical Trials.gov website , number NCT00739791 . FINDINGS P BMC telomerase activity expressed as natural logarithms increased from 2.00 ( SD 0.44 ) to 2.22 ( SD 0.49 ; p=0.031 ) . Raw values of telomerase increased from 8.05 ( SD 3.50 ) st and ard arbitrary units to 10.38 ( SD 6.01 ) st and ard arbitrary units . The increases in telomerase activity were significantly associated with decreases in low-density lipoprotein ( LDL ) cholesterol ( r=-0.36 , p=0.041 ) and decreases in psychological distress ( r=-0.35 , p=0.047 ) . INTERPRETATION Comprehensive lifestyle changes significantly increase telomerase activity and consequently telomere maintenance capacity in human immune-system cells . Given this finding and the pilot nature of this study , we report these increases in telomerase activity as a significant association rather than inferring causation . Larger r and omised controlled trials are warranted to confirm the findings of this study Goals of workProstate cancer patients receiving and rogen deprivation therapy ( ADT )  are vulnerable to a number of potentially debilitating side effects , which can significantly impact quality of life . The role of alternate therapies , such as physical activity ( PA ) , in attenuating these side effects is largely understudied for such a large population . Thus , the purpose of this study was to investigate the effects of PA intervention for men receiving ADT on PA behavior , quality of life , and fitness measures . Patients and methods One hundred participants were r and omized into an intervention ( n = 53 ) or a wait-list control group ( n = 47 ) , with 11 dropping out of the intervention group and 23 dropping out of the wait-list control group prior to post-testing . The intervention consisted of both an individually tailored home-based aerobic and light resistant training program and weekly group sessions .  PA , quality of life , fitness , and physiological outcomes were assessed pre and post the 16-week intervention . Results Significant increases in PA , supported by changes in girth measures and blood pressure , support the beneficial impact of the intervention . Positive trends were also evident for depression and fatigue . However 
    Output:
    