The Impact of Fragmented Physical Activity on Physical Function in European Older Adults in the SITLESS Study

Paolo Caserotti, Mark Tully, Mathias Skjodt, Nicole Blackburn, Maria Gine-Garriga, Laura Coll Planas, Michael Denkinger, Jason Wilson

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

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Patterns of physical activity (PA) may be associated with physical function independently of total volume. The study aim was to explore associations of PA fragmentation (PAF) and function in ≥65-year-old European adults (SITLESS study: n=1360). The ActiGraph wGT3X+ accelerometer was worn for seven consecutive days at the dominant hip. PAF was assessed as the ratio of the number of ≥10-second PA bouts divided by an individual’s total minutes in PA. Physical function was assessed using the 2-minute maximum walk test (2MWT) and short physical performance battery test (SPPB). Multiple linear regression was utilized adjusting for relevant covariates. Lower PA fragmentation was significantly (p\lt;0.01) associated with longer 2MWT distances and better SPPB scores. The model explained 54\1\MWT distance and in SPPB score, respectively. Increased PAF seems associated with reduced physical function; independent of sedentary behavior and numerous important health and socio-demographic covariates.
TidsskriftInnovation in Aging
Udgave nummerSuppl. 1
Sider (fra-til)790-791
Antal sider2
StatusUdgivet - 2020
BegivenhedGSA 2020 Annual Scientific Meeting Online -
Varighed: 4. nov. 20207. nov. 2020


KonferenceGSA 2020 Annual Scientific Meeting Online