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Association of accelerometer-derived step volume and intensity with hospitalizations and mortality in older adults:A prospective cohort study

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Journal of Sport and Health Science 2022年第5期11卷 578-585页

作者： asier manas Borja del Pozo Cruz Ulf Ekelund JoséLosa Reyna Irene Rodríguez Gómez JoséAntonio Carnicero Carreno Leocadio Rodríguez manas Francisco J.García García Ignacio Ara GENUD Toledo Research Group University of Castilla-La ManchaToledo 45071Spain CIBER of Frailty and Healthy Aging(CIBERFES) Madrid 28029Spain Motivation and Behaviour Research Program Institute for Positive Psychology and EducationFaculty of Health SciencesAustralian Catholic UniversitySydneyNSW 2060Australia Department of Sports Medicine Norwegian School of Sport SciencesOslo 0806Norway Department of Chronic Diseases and Ageing Norwegian Institute of Public HealthOslo 0473Norway Geriatric Department Hospital Virgen del ValleToledo 45071Spain Geriatric Department Hospital Universitario de GetafeGetafe 28905Spain

Purpose:This study aimed to examine the associations of accelerometer-derived steps volume and intensity with hospitalizations and all-cause mortality in older ***:This prospective cohort study involved 768 community-dwelling Spanish older adults(78.8±4.9 years,mean±SD;53.9% females)from the Toledo Study for Healthy Aging(2012-2017).The number of steps per day and step cadence(steps/min) were derived from a hip-mounted accelerometer worn for at least 4 days at *** were followed-up over a mean period of 3.1 years for hospitalization and 5.7 years for all-cause *** proportional hazards regression models were used to estimate the individual and joint associations between daily steps and stepping intensity with hospitalizations and all-cause ***:Included participants walked 5835± 3445 steps/day with an intensity of 7.3± 4.1 steps/*** adjusting for age,sex,body mass index(BMI),education,income,marital status and comorbidities,higher step count(hazard ratio(HR)=0.95,95% confidence interval(95%CI:0.90-1.00,and HR=0.87,95%CI:0.81-0.95 per additional 1000 steps) and higher step intensity(HR=0.95,95%CI:0.91-0.99,and HR=0.89,95%CI:0.84-0.95 per each additional step/min) were associated with fewer hospitalizations and all-cause mortality risk,*** to the group having low step volume and intensity,individuals in the group having high step volume and intensity had a lower risk of hospitalization(HR=0.72,95%CI:0.52-0.98) and all-cause mortality(HR=0.60,95%CI:0.37-0.98).Conclusion:Among older adults,both high step volume and step intensity were significantly associated with lower hospitalization and all-cause mortality *** step volume and intensity may benefit older people.

关键词： Aging Follow-up Objective Physical activity Walking

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