Every step counts: synthesising reviews associating objectively measured physical activity and sedentary behaviour with clinical outcomes in community-dwelling older adults

Background: Previous observations regarding association between physical activity (PA) and use of medicines among older adults are derived from self-reported PA. This study aimed to evaluate the association between objectively measured PA and polypharmacy among older adults with multimorbidity in Southern Brazil. Methods: This study included 875 noninstitutionalized older people, aged ≥60 years. Prescribed medicines used in the 15 days prior to the interview, socioeconomic data, and the presence of comorbidities were self-reported. Accelerometers were used to evaluate PA following the interview. Results: Prevalence of polypharmacy (≥5 medicines) was 38.3% (95% confidence interval, 35.0–41.5); those belonging to the lowest tertile of PA used more medicines. The authors observed a significant inverse association for polypharmacy between men belonging to the second and third tertiles of PA for objectively measured overall PA and light PA compared with the most inactive tertile. For women, the association between PA and polypharmacy was significant for overall, light, and moderate to vigorous PA only in the third tertile. Conclusions: Overall, light and moderate to vigorous PA were inversely associated to polypharmacy and differed by gender. Promotion of PA in older adults may be an effective intervention to reduce the number of medicines used independent of the number of comorbidities.

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Association Between Objectively Measured Physical Activity and the Number of Chronic Musculoskeletal Pain Sites in Community-Dwelling Older Adults

Pain Medicine ◽

10.1093/pm/pny112 ◽

2018 ◽

Vol 20 (4) ◽

pp. 717-723 ◽

Cited By ~ 6

Author(s):

Shunsuke Murata ◽

Takehiko Doi ◽

Ryuichi Sawa ◽

Ryo Nakamura ◽

Tsunenori Isa ◽

...

Keyword(s):

Physical Activity ◽

Older Adults ◽

Musculoskeletal Pain ◽

Community Dwelling ◽

Chronic Musculoskeletal Pain ◽

Objectively Measured ◽

Community Dwelling Older Adults ◽

Objectively Measured Physical Activity

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Associations between objectively measured physical activity, sedentary behaviour and time in bed among 75+ community-dwelling Danish older adults

BMC Geriatrics ◽

10.1186/s12877-020-01856-6 ◽

2021 ◽

Vol 21 (1) ◽

Author(s):

Li-Tang Tsai ◽

Eleanor Boyle ◽

Jan C. Brønd ◽

Gry Kock ◽

Mathias Skjødt ◽

...

Keyword(s):

Physical Activity ◽

Older Adults ◽

Sedentary Behavior ◽

Sedentary Behaviour ◽

Sleep Duration ◽

Activity Level ◽

Time In Bed ◽

Objectively Measured ◽

Objectively Measured Physical Activity ◽

Vector Magnitude

Abstract Background Older adults are recommended to sleep 7–8 h/day. Time in bed (TIB) differs from sleep duration and includes also the time of lying in bed without sleeping. Long TIB (≥9 h) are associated with self-reported sedentary behavior, but the association between objectively measured physical activity, sedentary behavior and TIB is unknown. Methods This study was based on cross-sectional analysis of the Healthy Ageing Network of Competence (HANC Study). Physical activity and sedentary behaviour were measured by a tri-axial accelerometer (ActiGraph) placed on the dominant wrist for 7 days. Sedentary behavior was classified as < 2303 counts per minute (cpm) in vector magnitude and physical activity intensities were categorized, as 2303–4999 and ≥ 5000 cpm in vector magnitude. TIB was recorded in self-reported diaries. Participants were categorized as UTIB (usually having TIB 7–9 h/night: ≥80% of measurement days), STIB (sometimes having TIB 7–9 h/night: 20–79% of measurement days), and RTIB (rarely having TIB 7–9 h/night: < 20% of measurement days). Multinominal regression models were used to calculate the relative risk ratios (RRR) of being RTIB and STIB by daily levels of physical activity and SB, with UTIB as the reference group. The models were adjusted for age, sex, average daily nap length and physical function. Results Three hundred and fourty-one older adults (median age 81 (IQR 5), 62% women) were included with median TIB of 8 h 21 min (1 h 10 min)/day, physical activity level of 2054 (864) CPM with 64 (15) % of waking hours in sedentary behavior. Those with average CPM within the highest tertile had a lower RRR (0.33 (0.15–0.71), p = 0.005) for being RTIB compared to those within the lowest tertile of average CPM. Accumulating physical activity in intensities 2303–4999 and ≥ 5000 cpm/day did not affect the RRR of being RTIB. RRR of being RTIB among highly sedentary participants (≥10 h/day of sedentary behavior) more than tripled compared to those who were less sedentary (3.21 (1.50–6.88), p = 0.003). Conclusions For older adults, being physically active and less sedentary was associated with being in bed for 7–9 h/night for most nights (≥80%). Future longitudinal studies are warranted to explore the causal relationship sbetween physical activity and sleep duration.

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Changes in Objectively Measured Lifestyle Factors During the COVID-19 Pandemic in Community-Dwelling Older Adults

10.21203/rs.3.rs-847301/v1 ◽

2021 ◽

Author(s):

Takuya Ataka ◽

Noriyuki Kimura ◽

Atsuko Eguchi ◽

Etsuro Matsubara

Keyword(s):

Physical Activity ◽

Older Adults ◽

Sedentary Time ◽

Vigorous Physical Activity ◽

Wearable Sensors ◽

Lifestyle Factors ◽

Community Dwelling ◽

Activity Level ◽

Objectively Measured ◽

Community Dwelling Older Adults

Abstract Background: In this manuscript, we aimed at investigating whether objectively measured lifestyle factors, including walking steps, sedentary time, amount of unforced physical activity, level of slight and energetic physical activity, conversation time, and sleep parameters altered before and during the COVID-19 pandemic among community-dwelling older adults.Methods: Data were obtained from a prospective cohort study conducted from 2015 to 2019 and a subsequent dementia prevention study undertaken in September 2020. Community-dwelling adults aged ≥65 years wore wearable sensors before and during the pandemic.Results: A total of 56 adults were enrolled in this study. The mean age was 74.2±3.9 years, and 58.9% (n=33) of the participants were female. The moderate and vigorous physical activity time significantly decreased and sedentary time significantly increased during the pandemic. Conclusions: This is the first study to demonstrate differences in objectively assessed lifestyle factors before and during the COVID-19 pandemic among community-dwelling older adults. The findings show that the pandemic has adversely affected physical activity among older adults living on their own in Japan.

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Associations of Objective Physical Activity and Sedentary Behavior with Frailty in Community-dwelling Older Adults: A Mini-review

Exercise Science ◽

10.15857/ksep.2020.29.1.34 ◽

2020 ◽

Vol 29 (1) ◽

pp. 34-39

Author(s):

Si Chen ◽

Tao Chen ◽

Shuzo Kumagai ◽

Hyuntae Park

Keyword(s):

Physical Activity ◽

Sedentary Behavior ◽

Vigorous Physical Activity ◽

Community Dwelling ◽

Almost All ◽

Sedentary Bouts ◽

Objectively Measured ◽

Community Dwelling Older Adults ◽

The Relationship ◽

Objectively Measured Physical Activity

PURPOSE: This review aimed to evaluate the relationship between objectively measured physical activity and sedentary behavior and frailty in community-dwelling older adults.METHODS: An electronic search was undertaken using the MEDLINE® databases from January 1st 2010 to December 31st 2019. Titles, abstracts, and full texts of the studies identified by the search were scrutinized by the author to determine eligibility for an inclusion in this review.RESULTS: The search identified 87 relevant articles resulted, of which eight studies from four cohorts met the inclusion requirements. Almost all the studies reported a significantly negative association between moderate-to-vigorous physical activity (MVPA) and frailty, while only one was a longitudinal study. Significant associations between sedentary time (ST) and higher severity of frailty were observed, however, the findings of associations of sedentary bouts were mixed.IMPLICATION: Higher amounts of ST and lower amounts of MVPA were associated with a higher prevalence of frailty or worse frailty levels. Replacing ST with MVPA may offset the detrimental consequences of ST on frailty. More longitudinal studies and quantitative researches are needed to investigate the association of MVPA and ST bouts with frailty.

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Causal effects of physical activity and sedentary behaviour on health deficits accumulation in older adults

International Journal of Epidemiology ◽

10.1093/ije/dyaa228 ◽

2020 ◽

Author(s):

Esther García-Esquinas ◽

Rosario Ortolá ◽

David Martínez-Gómez ◽

Javier Damián ◽

Matthew Prina ◽

...

Keyword(s):

Physical Activity ◽

Older Adults ◽

Sedentary Behaviour ◽

Community Dwelling ◽

Causal Effects ◽

Metabolic Equivalent ◽

Reverse Causation ◽

Community Dwelling Older Adults ◽

Representative Cohort

Abstract Background Increasing physical activity (PA) and reducing sedentary behaviour (SB) have been associated with healthy ageing, but their effects when adjusted for reverse causation and selection bias remain unclear. Methods A deficits accumulation (DA) index based on the number and severity of 51 health deficits (0–100%) was calculated at baseline and three biannual follow-up visits, in a representative cohort of 3 228 community-dwelling older adults in Spain. Average differences in DA index by previous recreational PA, household PA, mentally-active SB and passive SB were estimated using marginal structural models with inverse probability of exposure and censoring weights. Results Compared with participants with previous recreational PA of 10–19.9 metabolic equivalent hours/week (MET-hours/week), average differences in DA index (95% confidence intervals) were 0.19 (−1.09, 1.48), 0.69 (−0.23, 1.61), −0.66 (−1.34, 0.02), −0.87 (−1.59, −0.13) and −0.55 (−1.37, 0.28) for 0, 0.1–9.9, 20–29.9, 30–39.9 and ≥40 MET-hours/week, respectively (P for trend = 0.006). Household PA showed no effect on subsequent DA after adjusting for reverse causation. Women, but not men, who spent 7–14.9, 15–20.9 and ≥21 h/week on mentally active SB had DA decreases of 0.09 (−1.00, 1.19), 1.08 (−0.28, 2.45) and 2.17 (0.58, 3.75), respectively, compared with 1–6.9 h/week (P for trend = 0.005); whereas women who spent 3–3.9, 4–4.9 and ≥5 h/day on passive SB showed DA increases of 0.41 (−0.52, 1.35), 1.35 (0.13, 2.57) and 2.13 (0.78, 3.47), respectively, compared with 2–2.9 h/day (P for trend = 0.001). Conclusions The proposed methodology allows estimation of the causal effects of PA and SB on ageing, by simulating a random assignment in which all subjects have the same probability of exposure.

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