biostudies-literatureBann DEconomic and Social Research CouncilIntramural NIH HHSNCATS NIH HHSNICHD NIH HHSNIA NIH HHSNCRR NIH HHSMedical Research Councile0116058https://www.ebi.ac.uk/biostudies/studies/S-EPMC4315494biostudies-literatureUnknown10(2)<h4>Background</h4>Identifying modifiable determinants of fat mass and muscle strength in older adults is important given their impact on physical functioning and health. Light intensity physical activity and sedentary behavior are potential determinants, but their relations to these outcomes are poorly understood. We evaluated associations of light intensity physical activity and sedentary time-assessed both objectively and by self-report-with body mass index (BMI) and grip strength in a large sample of older adults.<h4>Methods</h4>We used cross-sectional baseline data from 1130 participants of the Lifestyle Interventions and Independence for Elders (LIFE) study, a community-dwelling sample of relatively sedentary older adults (70-89 years) at heightened risk of mobility disability. Time PloS oneLight Intensity physical activity and sedentary behavior in relation to body mass index and grip strength in older adults: cross-sectional findings from the Lifestyle Interventions and Independence for Elders (LIFE) study.PMC4315494P30AG021342UL1 TR0001421P30 AG028740UL1 TR001085ES/M001660/1P30 AG0287401P30AG031679MC_UU_12019/4P30 AG024827MC_UU_12019/11R24HD065688-01A1R24 HD065688U01AG22376P30 AG021332U01 AG022376UL1 RR025744P30 AG0213423U01AG022376-05A2SP30 AG0316791 P30 AG21332K07AG3587Reid KFRodarte RWilliams KKnaggs JDCooper REspeland MAHarvin LNRejeski WStafford RSMarsiske MChupp GLMiller MEVaz Fragoso CAWalkup MPBonds DGoodpaster BHHankinson JLKim WSNewman ABKashaf SSMyers VHBuford TWRushing JPahor MSandesara BDKritchevsky SBWrights ACook DRushing SBugaj JAMignosa BMKirn DRSpring BHauser JHalpin SNRapp SRZenoni MAButitta BPPruitt LALIFE Study GroupRoberson WMorris HLCastro CMPepine CJGraff RHarris MNIannone LPBonk JTWu KCFielding RLee JLopez OPasha EPCrump CLHadley ECShertzer-Skinner RHenkin LMarsh APFolta SCBeard VEDeluca DAxtell RSCauser JLeeuwenburgh CHandberg EBeavers DPSzady ABlair SNGrove GTsiroyannis EXVerghese JDomanchuk KBarr DBrennan MJRego AFitch MShepard DMFennelly BRadcliff KAJennings JMHendrie HCBarnett TSMillet HKGill TMBrubaker PHNayfield SRomashkan SJennings JWoolard NTudor-Locke CFielding RALorow MSNadkarni NKGroessl EJMcGloin JMAnton SDGill TByington RPHsu FCFurberg CDKost PHepler JHill JKorytov IAriet MAmbrosius WTNewman MABritt NEChurch TPatel KVMcGucken APMcDavitt ECBrinkley TEFries RManini TMKennedy KSingletary FFRush JKaplan RMYank VMcDermott MMApplegate WManini TBerra KHau CLiu CKFlynn GMChurch TSNelson MEMautner RIves DGMarena WCStowe CLBotoseneanu AHaskell WLDemons JSGlynn NWKerwin DKatula JAWilliamson JMihalko SLHire DHolmes LLovato LEspeland MMonce RPhillips EMBann DCocreham SHStudenski SADonatto SGKing ACGuralnik JMSink KMde Rekeneire NfalseLight Intensity physical activity and sedentary behavior in relation to body mass index and grip strength in older adults: cross-sectional findings from the Lifestyle Interventions and Independence for Elders (LIFE) study.<h4>Background</h4>Identifying modifiable determinants of fat mass and muscle strength in older adults is important given their impact on physical functioning and health. Light intensity physical activity and sedentary behavior are potential determinants, but their relations to these outcomes are poorly understood. We evaluated associations of light intensity physical activity and sedentary time-assessed both objectively and by self-report-with body mass index (BMI) and grip strength in a large sample of older adults.<h4>Methods</h4>We used cross-sectional baseline data from 1130 participants of the Lifestyle Interventions and Independence for Elders (LIFE) study, a community-dwelling sample of relatively sedentary older adults (70-89 years) at heightened risk of mobility disability. Time 2015-01-01T00:00:00Z20152026-04-29T19:12:32.129Z2019-03-26T23:30:11ZS-EPMC43154942564768510.1371/journal.pone.0116058