Girls on the Move Program to Increase Physical Activity Participation Systematic observation of physical activity in afterschool programs: preliminary findings from Movin' Afterschool intervention. One-year changes in physical activity and sedentary behavior among adolescents: the Croatian Physical Activity in Adolescence Longitudinal Study (CRO-PALS). A comprehensive physical activity promotion programme at elementary school: the effects on physical activity, physical fitness and psychosocial correlates of physical activity. Effect of physical activity guidelines on physical function in older adults. Tracking of physical activity from early childhood through youth into adulthood. Community-wide intervention and population-level physical activity: a 5-year cluster randomized trial Physical inactivity is a risk factor for physical activity-related injuries in children Effect of Physical Activity versus Health Education on Physical Function, Grip Strength and Mobility Mediators of Physical Activity Behavior Change in the “Girls on the Move” Intervention Efficacy of a web-based, center-based or combined physical activity intervention among older adults. Secular and longitudinal physical activity changes in population‐based samples of children and adolescents A randomized controlled trial of single versus multiple health behavior change: promoting physical activity and nutrition among adolescents. Cluster randomized controlled trial of a multilevel physical activity intervention for older adults Kids Out; evaluation of a brief multimodal cluster randomized intervention integrated in health education lessons to increase physical activity and reduce sedentary behavior among eighth graders Effects of a physical activity intervention on measures of physical performance: Results of the lifestyle interventions and independence for Elders Pilot (LIFE-P) study. Physical activity combined with resistance training reduces symptoms of frailty in older adults: A randomized controlled trial.
Background : Because physical inactivity poses serious health risks , interventions are urgently needed to reverse the increasingly sedentary lifestyles of adolescent girls . Objective : The aim of this study was to determine the feasibility of " Girls on the Move , " an individually tailored computerized physical activity ( PA ) program plus nurse counseling intervention , in increasing PA . Methods : A pretest-posttest control group design was used with 77 racially diverse sedentary girls in Grade s 6 , 7 , and 8 from two middle schools . Each of the instructional grade s was r and omly assigned to either an intervention or control condition . After completing computerized question naires , each girl in the control group received a h and out listing the PA recommendations . To encourage PA , each girl in the intervention group received computerized , individually tailored feedback messages based on her responses to the question naires , individual counseling from the school 's pediatric nurse practitioner ( PNP ) , and telephone calls and mailings from a trained research assistant . At 12 weeks , girls in both groups responded to the question naires . Results : No differences in self-reported PA emerged between the intervention and control groups at Weeks 1 ( baseline ) and 12 ( postintervention ) . Repeated measures ANOVA showed a significant interaction between group and time for social support for PA , F(1 , 69 ) = 5.73 , p = .019 , indicating that the intervention group had significantly greater social support across time than did the control group . From baseline to postintervention , social support increased for the intervention group but decreased for the control group . Discussion : Reasons for the lack of significant differences between the groups on the PA measures were cited . Important information that could inform subsequent studies that test interventions to increase youth PA was acquired from conducting this study . Future efforts to increase PA participation might include this approach for enhancing social support for PA BACKGROUND National and state organizations have called upon afterschool programs ( 3 - 6 PM , ASP ) to promote physical activity ( PA ) .  Few strategies exist that ASPs can use to increase the PA of children enrolled . This study evaluated a policy-level intervention ( Movin ' Afterschool , MAS ) design ed to increase  PA  through staff implemented policy-level changes and ongoing technical support . METHODS Twelve preexisting community-based ASPs serving 580 children ( 5 - 12 yrs , 57 % girls ) were invited to take part in MAS . Evaluation of children 's PA , staff behaviors ( engaged or promote PA , other ASP tasks , general supervising ) , and environmental features ( equipment , organized PA ) at baseline ( Fall 2010 ) and post assessment ( Spring 2011 ) were collected using SOPLAY ( System for Observing Play and Leisure Activity in Youth ) for boys and girls , separately . R and om effects models evaluated changes in PA categories ( sedentary , walking , vigorous ) . RESULTS The percentage of boys and girls sedentary decreased by 11.8 % and 11.4 % , respectively . Girls ' walking increased by 6.9 % while boys ' vigorous PA increased by 6.5 % . Greater increases in vigorous activity were observed as post assessment in organized activities for boys and during indoor activities for girls . CONCLUSIONS Findings indicate a policy-level approach targeting staff training and ongoing technical support can produce notable increases in  PA  within the ASP setting Background Little is known about the concurrent change in  physical activity ( PA )  ,  sedentary behavior ( SB ) and  sport participation  ( SP ) during adolescence . The main purpose of this prospect i ve and partly objective study was to simultaneously investigate PA , SBs and SP changes between the 1st and 2nd grade s of high school in urban adolescents . Methods In this 1-year follow-up study , the participants were 81 secondary -school students ( 28 boys and 53 girls ) aged 15.5 years at the baseline .  PA was assessed with the SenseWear Armb and multi-sensor activity monitor , while SBs were assessed by using School Health Action , Planning and Evaluation System ( SHAPES ) PA question naire . The SHAPES question naire was supplemented with two questions inquiring about SP in organized sports in school and outside of school . Results PA decreased markedly in both genders between the 1st and 2nd grade s of high school . Total energy expenditure ( TEE ) was reduced by 13 kcal/kg/day on average in boys and by 10 kcal/kg/day in girls ( p for both < 0.001 ) , while mean daily active energy expenditure ( AEE ) decreased by 7 kcal/kg/day ( p < 0.001 ) and 3 kcal/kg/day ( p = 0.04 ) in boys and girls , respectively . Similarly , the amount of moderate PA declined by 49 min/day in boys and 21 min/day in girls ( p for both < 0.001 ) . At the same time vigorous PA was cut by 14 min/day ( p < 0.001 ) and 3 min/day ( p = 0.003 ) in boys and girls , respectively . Conversely , time spent in SBs did not show any change . Conclusion In conclusion , a decline in PA between the 1st and 2nd grade s of high school was marked but was not accompanied with an increase in SBs . Policies aim ed at increasing PA should be targeting the period of entering secondary school to offset the observed drop in PA OBJECTIVE To evaluate the effects of a comprehensive physical activity ( PA ) promotion programme in elementary schools on children 's total PA levels , leisure-time PA , physical fitness and psychosocial correlates of PA . DESIGN A pre-test-post-test design over two school years . SETTING AND SUBJECTS Sixteen elementary schools ( 764 children , mean age : 11.2 + /- 0.7 years ) were r and omly assigned to the intervention condition ( n = 8) and the control condition ( n = 8) . The intervention included a health-related physical education programme , an extracurricular PA promotion programme and classroom-based PA education lessons . In the total sample , leisure-time PA , psychosocial correlates of PA and physical fitness were measured using a PA question naire and the Eurofit test battery . In a sub- sample , total PA levels were measured using an accelerometer . RESULTS According to accelerometer data , children 's moderate PA and moderate-to-vigorous PA ( MVPA ) levels decreased less in the intervention schools than in the control schools ( P < 0.01 ) . The average time spent on MVPA decreased by 9 min per day in the intervention schools compared with 33 min per day in the control schools . Children in the intervention schools reported significantly more moderate PA in leisure time than the controls ( P < 0.05 ) . No overall improvement of physical fitness and no effects on the psychosocial correlates of PA were found . CONCLUSIONS The comprehensive PA promotion programme was successful in preventing a decline in children 's  total activity levels . Furthermore , the intervention increased children 's PA engagement in leisure time . Therefore , implementation needs to be encouraged OBJECTIVES To determine whether elderly people who meet national guidelines have higher physical function ( PF ) scores than those who do not and the effect on functional trajectory when physical activity ( PA ) levels change from above to below this threshold , or vice versa . DESIGN Pooled data . SETTING Two 6-month r and omized controlled trials aim ed at increasing PA in adults . PARTICIPANTS Adults aged 65 to 94 ( N=357 ) . INTERVENTION PA counseling over the telephone and through mailed material s. MEASUREMENTS  Self-reported PA  dichotomized at 150 minutes/week and PF using the Medical Outcomes Study 36-item Short Form Question naire PF subscale . RESULTS At baseline , individuals reporting 150 minutes or more of moderate PA/week had mean PF scores that were 20.3 points higher than those who did not ( P<.001 ) . Change in PA minutes from above threshold to below threshold or from below threshold to above threshold from baseline to 6 months result ed in an average change in PF of -11.18 ( P<.001 ) and + 5.10 ( P=.05 ) , respectively . CONCLUSION These findings suggest that PA is an important predictor of functional status . Older sedentary adults can improve PF by meeting recommended PA levels . Conversely , dropping below recommended PA levels has a deleterious effect on PF . Given the importance of PF in maintenance of independence and quality of life in older adults , adherence to recommended PA guidelines should be endorsed PURPOSE The aim of the study was to investigate the  tracking of physical activity ( PA )  from preschool age to adulthood in six age cohorts of males and females . METHODS A r and om sample of 3596 boys and girls age 3 - 18 yr participated in the Cardiovascular Risks in Young Finns Study in 1980 . The follow-up measurements were repeated in 1986 , 1992 , 2001 , and 2007 . The  PA  was measured by mother 's report in 3- and 6-yr-olds and self-report in 9-yr-olds and older .  Tracking of PA  was analyzed using the Spearman rank-order correlation and a simplex model . RESULTS Mother-reported PA at age 3 and 6 yr significantly predicted self-reported PA in youth and in young adulthood , and there was a significant indirect effect of mother report on adult PA 2007 in males . Simplex models that fitted the data very well produced higher stability coefficients than the Spearman rank-order correlations showing moderate or high tracking . The tracking was higher in males than that in females . CONCLUSION This study has shown that physically active lifestyle starts to develop very early in childhood and that the stability of PA is moderate or high along the life course from youth to adulthood Abstract Background Evidence from a limited number of short-term trials indicates the difficulty in achieving population -level improvements in physical activity ( PA ) through community-wide interventions ( CWIs ) . We sought to evaluate the effectiveness of a 5-year CWI for promoting PA in middle-aged and older adults using a cluster r and omized design . Methods We r and omized 12 communities in Unnan , Japan , to either intervention ( 9 ) or control ( 3 ) . Additionally , intervention communities were r and omly allocated to three subgroups by different PA types promoted . R and omly sample d residents aged 40–79 years responded to the baseline survey ( n = 4414 ; 74 % ) and were followed at 1 , 3 and 5 years ( 78–83 % response rate ) . The intervention was a 5-year CWI using social marketing to promote PA . The primary outcome was a change in recommended levels of PA . Results Compared with control communities , adults achieving recommended levels of PA increased in intervention communities [ adjusted change difference = 4.6 percentage points ( 95 % confidence interval : 0.4 , 8.8 ) ] . The intervention was effective for promoting all types of recommended PAs , i.e. aerobic ( walking , 6.4 % ) , flexibility ( 6.1 % ) and muscle-strengthening activities ( 5.7 % ) . However , a bundled approach , which attempted to promote all forms of PAs above simultaneously , was not effective ( 1.3–3.4 % , P ≥ 0.138 ) . Linear dose – response relationships between the CWI awareness and changes in PA were observed ( P ≤ 0.02 ) . Pain intensity decreased in shoulder ( intervention and control ) and lower back ( intervention only ) but there was little change difference in all musculoskeletal pain outcomes between the groups . Conclusions The 5-year CWI using the focused social marketing strategy increased the population -level of PA Objectives To describe the risk factors associated with injuries result ing from physical education ( PE ) , leisure time physical activity ( leisure time PA ) and sports in 9–12-year-old children . Design Prospect i ve cohort study . Setting Primary schools . Participants Nine hundred and ninety-five children aged 9–12 years . Main outcome measures Injuries occurring during either PE class  , leisure time PA or sports , and caused the child to at least stop the current activity were recorded prospect ively . Individual weekly exposure was estimated from baseline and follow-up question naires . Potential risk factors were gender , age , socioeconomic status , ethnicity , habitual level of PA , body mass index and a motor fitness . A multivariate Cox proportional hazard regression model was developed , accounting for clustering within schools . Results Gender , age and level of PA were independent significant risk factors for injury . Different modalities of PA had different injury risk factors . Most importantly , the low levels of habitual PA  significantly increased injury risk . Conclusions The children at highest injury risk are the target audience of the contemporary PA promotion efforts . PA promotion should also focus on injury prevention BACKGROUND : Physical activity ( PA ) reduces the rate of mobility disability , compared with health education ( HE ) , in at risk older adults . It is important to underst and aspects of performance contributing to this benefit . OBJECTIVE : To evaluate intervention effects on tertiary physical performance outcomes . DESIGN : The Lifestyle Interventions and Independence for Elders ( LIFE ) was a multi‐centered , single‐blind r and omized trial of older adults . SETTING : Eight field centers throughout the United States . PARTICIPANTS : 1635 adults aged 78.9 ± 5.2 years , 67.2 % women at risk for mobility disability ( Short Physical Performance Battery [ SPPB ] < 10 ) . INTERVENTIONS : Moderate PA including walking , resistance and balance training compared with HE consisting of topics relevant to older adults . OUTCOMES : Grip strength , SPPB score and its components ( balance , 4 m gait speed , and chair‐st and s ) , as well as 400 m walking speed . RESULTS : Total SPPB score was higher in PA versus HE across all follow‐up times ( overall P = .04 ) as was the chair‐st and component ( overall P < .001 ) . No intervention effects were observed for balance ( overall P = .12 ) , 4 m gait speed ( overall P = .78 ) , or grip strength ( overall P = .62 ) . However , 400 m walking speed was faster in PA versus HE group ( overall P = < .001 ) . In separate models , 29 % of the rate reduction of major mobility disability in the PA versus HE group was explained by change in SPPB score , while 39 % was explained by change in the chair st and component . CONCLUSION : Lower extremity performance ( SPPB ) was significantly higher in the PA compared with HE group . Changes in chair‐st and score explained a considerable portion of the effect of PA on the reduction of major mobility disability‐consistent with the idea that preserving muscle strength/power may be important for the prevention of major mobility disability Background The minimal effect of interventions to date on increasing young adolescent girls ’ physical activity ( PA ) may be due to inadequate underst and ing of the mechanisms underlying behavior change , yet sparse research testing a PA intervention has examined the capacity of theories to explain PA , particularly when using objective measures . Objectives The aim of the study was to examine whether constructs from the health promotion model and self-determination theory mediated changes in moderate-to-vigorous physical activity ( MVPA ) following a 17-week intervention . Methods The study was a secondary analysis of data from a group r and omized trial , including 12 intervention and 12 control schools in the Midwestern United States . Data were collected in 2012–2016 . Girls ( fifth- to eighth- grade , N = 1,519 ) completed surveys on  perceived benefits and enjoyment of PA , PA self-efficacy , social support and motivation for PA , and barriers to PA and wore accelerometers . Results The final path model had a good fit : χ2(4 ) = 2.48 , p = .648 ; goodness-of-fit index = 1 ; comparative fit index = 1 ; root-mean-square error of approximation = 0 ; st and ardized root-mean-square residual = 0.01 . For MVPA change from baseline to postintervention , enjoyment ( B = 24.48 , p < .001 ) and social support ( B = 30.48 , p < .001 ) had a positive direct effect , whereas the intervention had a positive indirect effect through enjoyment and social support ( B = 9.13 , p < .001 ) . Enjoyment ( B = −13.83 , p < .001 ) and social support ( B = −17.22 , p < .001 ) had a negative indirect effect on MVPA change from postintervention to follow-up . Discussion Enjoyment of PA and social support for PA may be important mediators of  PA in young adolescent girls and warrant consideration when design ing interventions With more social support and environment-centered interventions being recommended in web-based interventions , this study examined the efficacy of three intervention conditions aim ed at promoting physical activity ( PA ) in older adults . The efficacy analyses included the self-reported PA level , stage of change for PA and awareness about PA among participants . Eligible participants ( N = 149 ; M = 65 years old , SD = 6 ) , recruited in a unique Belgian French-speaking municipality , were r and omized in four research arms for a 3-month intervention : ( i ) web-based ; ( ii ) center-based ; ( iii ) mixed ( combination of web- and center-based ) ; and ( iv ) control ( no intervention ) . Web-based condition included a PA website and monthly tailored emails whereas center-based condition comprised 12 sessions ( 1 per week ) of group exercising . With a significant increase in PA , the PA stage of change and the PA awareness at 12 months , the mixed intervention condition seemed to include the key social and motivating elements for sustainable behavior change . Center-based intervention was more likely to produce significant improvements of the PA level and the stage of change for PA change whereas web-based intervention was more likely to extend the awareness about PA The aims of this study were to investigate whether  physical activity ( PA ) and sedentary time ( ST )  in 9- and 15-year-olds differed between 2005 - 2006 and 2011 - 2012 ( secular change ) , and to investigate changes in PA and ST from age 9 to 15 ( longitudinal change ) . In 2005 - 2006 , we invited nationally representative sample s of Norwegian 9- ( n=1470 ) and 15-year-olds ( n=1348 ) to participate . In 2011 - 2012 , we invited a new nationally representative sample of 9-year-olds ( n=1945 ) , whereas 15-year-olds ( n=1759 ) were invited to participate either based on previous participation in 2005 - 2006 or from a r and om sample of schools . We assessed PA and ST objective ly using accelerometers . In 2011 - 2012 , both 9- and 15-year-olds spent more time sedentary ( ≥35.7 min/d , P<.001 ) and less time in light PA ( ≥35.2 min/d , P<.001 ) compared to their peers in 2005 - 2006 . Nine-year-old girls also spent less time in moderate-to-vigorous PA ( MVPA ) ( 4.2 min/d , P=.041 ) . In both age groups , the proportion accumulating an average of 60 min/d of MVPA did not differ between the two cohorts . From age 9 to 15 , girls and boys decreased their time spent in LPA ( ≥106.7 min/d , P<.001 ) and in MVPA ( ≥20.8 min/d , P<.001 ) . During the same period , ST increased by a mean of > 2 h/d ( P<.011 ) . We observed an adverse secular change in PA from 2005 - 2006 to 2011 - 2012 among 9- and 15-year-olds , and a large decline in PA in the participants followed longitudinally from age 9 to 15 years Targeting multiple behaviors for change may provide significant health benefits . This study compared interventions targeting physical activity and nutrition ( PAN ) concurrently versus physical activity ( PA ) alone .  Adolescents ( N=138 ) were r and omized to the PAN or PA intervention or control condition ( n=46 per group ) . Primary outcomes were change in PA accelerometer and 3-day dietary recording from baseline to 3-month follow-up . The PAN and PA interventions were efficacious in supporting boys ' ( p<.001 ) but not girls ' ( p=.663 ) PA relative to the control condition . Dietary change was minimal . Although the findings do not reveal a decrement to PA promotion when a nutrition intervention was added , neither do they reveal any additional benefit . More studies comparing single versus multibehavioral interventions are needed Background Older adults are the least active population group . Interventions in residential setting s may support a multi-level approach to behavior change . Methods In a cluster r and omized control trial , 11 San Diego retirement communities were assigned to a physical activity ( PA ) intervention or a healthy aging attention control condition .  Participants were 307 adults over 65 years old . The multilevel PA intervention was delivered with the assistance of peer leaders , who were trained older adult from the retirement communities . Intervention components included individual counseling & self-monitoring with pedometers , group education sessions , group walks , community advocacy and pedestrian community change projects . Intervention condition by time interactions were tested using generalized mixed effects regressions . The primary outcomes was accelerometer measured physical activity . Secondary outcomes were blood pressure and objective ly measured physical functioning . Results Over 70 % of the sample were 80 years or older .  PA  significantly increased in the intervention condition ( 56 min of moderate-vigorous PA per week ; 119 min of light PA ) compared with the control condition and remained significantly higher across the 12 month study . Men and participants under 84 years old benefited most from the intervention . There was a significant decrease in systolic ( p < .007 ) and diastolic ( p < .02 ) blood pressure at 6 months . Physical functioning improved but the changes were not statistically significant . Conclusions Intervention fidelity was high demonstrating feasibility . Changes in PA and blood pressure achieved were comparable to other studies with much younger participants . Men , in particular , avoided a year-long decline in PA.Trial registration clincialtrials.gov Identifier : NCT01155011 Background Most Finnish adolescents are not sufficiently physically active . Health education ( HE ) provides beneficial starting point for physical activity ( PA ) promotion in schools . This study evaluates an intervention integrated into three HE lessons to increase  PA and reduce sedentary behavior ( SB )  among eighth grade rs . Methods All public secondary schools in Tampere , Finl and participated and were r and omized to intervention ( INT , n = 7 ) and comparison group ( COM , n = 7 ) . In INT ( 690 students , 36 classes ) the teachers ( n = 14 ) implemented behavioral theory-driven content during three HE lessons . In COM ( 860 students , 41 classes ) the teachers ( n = 14 ) carried out st and ard lessons . The evaluation was based on RE- AIM : Effectiveness was assessed from baseline to 4 weeks ( Follow-up 1 ) and Maintenance from 4 weeks to 7 months ( Follow-up 2 ) with change in students ’ PA and SB and related psychosocial and parental factors . Methods included question naire , accelerometer  and  activity diary . Linear mixed models with baseline adjustments and r and om effect correction were used to compare the difference in change between INT and COM . Data on Reach , Adoption and Implementation were collected during the process . Results Intervention effects were only seen in the self-reported data favoring INT in the weekly number of days with at least 1 h of brisk leisure PA ( 0.3 [ 95%CI 0.1 to 0.6 ] ) , proportion of students meeting PA recommendations ( 4.1 [ 95%CI 2.5 to 5.7 ] ) , proportion of students reporting that their family sets limitations for screen time ( 5.4 [ 95%CI 3.3 to 7.4 ] ) and in the number of days on which the students intended to do leisure PA in the following week ( 0.3 [ 95%CI 0.1 to 0.6 ] ) . The effects on PA were still beneficial for INT at Follow-up 2 . The intervention reached 96 % of the students , was adopted in all 7 schools and was implemented by 13/14 teachers in 35/36 classes . Conclusions The intervention was feasible and had small favorable effects on students ’ self-reported PA , intention to do PA and family norm in screen time . The effects on PA persisted until Follow-up 2 . It is likely that for greater impacts the HE lessons should have been supported with other actions without compromising feasibility . Trial registration NCT01633918 ( June 27th , 2012 ) BACKGROUND The Short Physical Performance Battery ( SPPB ) , which includes walking , balance , and chair st and s tests , independently predicts mobility disability and activities of daily living disability . To date , however , there is no definitive evidence from r and omized controlled trials that SPPB scores can be improved . Our objective was to assess the effect of a comprehensive physical activity ( PA ) intervention on the SPPB and other physical performance measures . METHODS A total of 424 sedentary persons at risk for disability ( ages 70 - 89 years ) were r and omized to a moderate-intensity PA intervention or a successful aging ( SA ) health education intervention and were followed for an average of 1.2 years . RESULTS The mean baseline SPPB score on a scale of 0 - 12 , with 12 corresponding to highest performance , was 7.5 . At 6 and 12 months , the PA versus SA group adjusted SPPB ( + /- st and ard error ) scores were 8.7 + /- 0.1 versus 8.0 + /- 0.1 , and 8.5 + /- 0.1 versus 7.9 + /- 0.2 , respectively ( p < .001 ) . The 400-meter walking speed was also significantly improved in the PA group . The PA group had a lower incidence of major mobility disability defined as incapacity to complete a 400-meter walk ( hazard ratio = 0.71 , 95 % confidence interval = 0.44 - 1.20 ) . CONCLUSIONS A structured PA intervention improved the SPPB score and other measures of physical performance . An intervention that improves the SPPB performance may also offer benefit on more distal health outcomes , such as mobility disability INTRODUCTION Increased physical activity ( PA ) is a crucial factor in the prevention of physical deterioration , and resistance training ( RT ) is also a common and effective intervention for older adults . However , the effects of PA as an adjunct to RT on frailty status remains unclear ; therefore , we clarified the effect of a PA intervention with feedback , as an adjunct to resistance strength training , on the physical and mental outcomes of frail older adults . MATERIAL S AND METHODS We employed a r and omized controlled trial . Community-dwelling frail older adults in Japan were recruited to participate . Forty-one participants ( mean age 81.5 ) were r and omly assigned to engage in a resistance training with PA ( RPA group ) or RT group for six months . Frailty status and frailty scores , which were measured according to the Cardiovascular Health Study criteria -muscle strength , mobility , instrumental activities of daily living , and health-related quality of life-were assessed . RESULTS Participants in the RPA group exhibited a significant increase in light-intensity PA , the number of steps taken daily ( p < 0.05 ) , and lower-limb muscle strength ( p < 0.05 ) and a significant decrease in frailty scores . However , pre- and postintervention frailty status , instrumental activities of daily living , and health-related quality of life did not differ significantly . CONCLUSIONS Implementation of a PA intervention as an adjunct to RT is feasible , as it reduced frailty scores and increased lower-limb muscle strength and mobility in older adults with frailty symptoms
Commonly employed behaviour change techniques within successful interventions included goals and planning , feedback and monitoring , social support and repetition and substitution .
Conclusions Walking interventions , particularly those conducted in the school environment , have the potential to increase PA in children and adolescents .
Conclusions on which interventions most effectively increased walking behaviours in this population were hindered by the limited number of identified interventions and the short duration of interventions evaluated .
Background  Physical activity ( PA ) levels decline as children move into adolescence , with this decline more notable in girls .
As a consequence , many young people are failing to meet current PA guidelines .
Walking has been a cornerstone of PA promotion in adults and may provide an effective means of increasing PA levels among younger people .
Objective Our objective was to conduct a systematic review of interventions aim ed at promoting increased levels of walking  among children and adolescents .