scholarly journals Number of days required to estimate objectively measured physical activity constructs in different age groups

2019 ◽  
Author(s):  
Luiza Isnardi Cardoso Ricardo ◽  
Andrea Wendt ◽  
Leony Morgana Galliano ◽  
Werner de Andrade Muller ◽  
Gloria Izabel Niño Cruz ◽  
...  
Keyword(s):  
Physical Activity ◽  
Age Groups ◽  
R Package ◽  
Population Based ◽  
Test Reliability ◽  
Birth Cohorts ◽  
Good Reliability ◽  
Chi Squared ◽  
Minimum Number ◽  
Objectively Measured

PurposeThe present study aims to estimate the minimum number of accelerometer measurement days needed to estimate habitual physical activity (PA) among 6, 18 and 30 years old participants, belonging to three population-based Brazilian birth cohorts. Method: PA was assessed by triaxial wrist worn GENEActiv accelerometers for 4-7 consecutive days, including at least one weekend day. Accelerometer raw data were analyzed with R-package GGIR. Description of PA measures (overall PA, MVPA, LPA) between weekdays and weekend days were conducted, and statistical differences were tested with chi-squared and Kruskal-Wallis tests. Intraclass Reliability Coefficient (IRC) was applied through the Spearman Brown Formulae to test reliability of different number of days of accelerometer use. Results: Differences between week and weekend days regarding LPA, MVPA and Overall PA, were only observed among 30-year-olds. More MVPA (p=0.006) and Overall PA (p<0.001) were performed on week days. The IRC coefficients ranged from 0.44 to 0.83 in children and from 0.54 to 0.88 in adults. Conclusion: In conclusion, our results show that between four and six measurement days are needed to achieve good reliability in the analyzed participants, depending on the PA construct evaluated (MVPA, LPA or overall PA).

scholarly journals Number of days required to estimate physical activity constructs objectively measured in different age groups: Findings from three Brazilian (Pelotas) population-based birth cohorts

PLoS ONE ◽  
2020 ◽  
Vol 15 (1) ◽  
pp. e0216017 ◽  
Author(s):  
Luiza Isnardi Cardoso Ricardo ◽  
Andrea Wendt ◽  
Leony Morgana Galliano ◽  
Werner de Andrade Muller ◽  
Gloria Izabel Niño Cruz ◽  
...  
Keyword(s):  
Physical Activity ◽  
Age Groups ◽  
Population Based ◽  
Birth Cohorts ◽  
Objectively Measured

scholarly journals Prenatal and birth predictors of objectively measured physical activity and sedentary time in three population-based birth cohorts in Brazil

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Ding Ding ◽  
Gregore I. Mielke ◽  
Inacio Crochemore M. Silva ◽  
Fernando C. Wehrmeister ◽  
Bernardo L. Horta ◽  
...  
Keyword(s):  
Physical Activity ◽  
Sedentary Time ◽  
Population Based ◽  
Birth Cohorts ◽  
Objectively Measured ◽  
Objectively Measured Physical Activity

scholarly journals Validity and responsiveness of the Daily- and Clinical visit-PROactive Physical Activity in COPD (D-PPAC and C-PPAC) instruments

Thorax ◽  
2021 ◽  
Vol 76 (3) ◽  
pp. 228-238
Author(s):  
Judith Garcia-Aymerich ◽  
Milo A Puhan ◽  
Solange Corriol-Rohou ◽  
Corina de Jong ◽  
Heleen Demeyer ◽  
...  
Keyword(s):  
Physical Activity ◽  
Internal Consistency ◽  
Full Range ◽  
Large Population ◽  
Minimal Important Difference ◽  
Age Groups ◽  
Forced Expiratory Volume ◽  
Test Reliability ◽  
Chronic Obstructive ◽  
Clinical Visit

BackgroundThe Daily-PROactive and Clinical visit-PROactive Physical Activity (D-PPAC and C-PPAC) instruments in chronic obstructive pulmonary disease (COPD) combines questionnaire with activity monitor data to measure patients’ experience of physical activity. Their amount, difficulty and total scores range from 0 (worst) to 100 (best) but require further psychometric evaluation.ObjectiveTo test reliability, validity and responsiveness, and to define minimal important difference (MID), of the D-PPAC and C-PPAC instruments, in a large population of patients with stable COPD from diverse severities, settings and countries.MethodsWe used data from seven randomised controlled trials to evaluate D-PPAC and C-PPAC internal consistency and construct validity by sex, age groups, COPD severity, country and language as well as responsiveness to interventions, ability to detect change and MID.ResultsWe included 1324 patients (mean (SD) age 66 (8) years, forced expiratory volume in 1 s 55 (17)% predicted). Scores covered almost the full range from 0 to 100, showed strong internal consistency after stratification and correlated as a priori hypothesised with dyspnoea, health-related quality of life and exercise capacity. Difficulty scores improved after pharmacological treatment and pulmonary rehabilitation, while amount scores improved after behavioural physical activity interventions. All scores were responsive to changes in self-reported physical activity experience (both worsening and improvement) and to the occurrence of COPD exacerbations during follow-up. The MID was estimated to 6 for amount and difficulty scores and 4 for total score.ConclusionsThe D-PPAC and C-PPAC instruments are reliable and valid across diverse COPD populations and responsive to pharmacological and non-pharmacological interventions and changes in clinically relevant variables.

scholarly journals Objectively measured physical activity, sedentary behaviour and all-cause mortality in older men: does volume of activity matter more than pattern of accumulation?

2018 ◽  
Vol 53 (16) ◽  
pp. 1013-1020 ◽  
Author(s):  
Barbara J Jefferis ◽  
Tessa J Parsons ◽  
Claudio Sartini ◽  
Sarah Ash ◽  
Lucy T Lennon ◽  
...  
Keyword(s):  
Physical Activity ◽  
Sedentary Behaviour ◽  
Vigorous Physical Activity ◽  
Older Men ◽  
Population Based ◽  
Physical Activity Guidelines ◽  
All Cause Mortality ◽  
Sedentary Breaks ◽  
Objectively Measured

ObjectivesTo understand how device-measured sedentary behaviour and physical activity are related to all-cause mortality in older men, an age group with high levels of inactivity and sedentary behaviour.MethodsProspective population-based cohort study of men recruited from 24 UK General Practices in 1978–1980. In 2010–2012, 3137 surviving men were invited to a follow-up, 1655 (aged 71–92 years) agreed. Nurses measured height and weight, men completed health and demographic questionnaires and wore an ActiGraph GT3x accelerometer. All-cause mortality was collected through National Health Service central registers up to 1 June 2016.ResultsAfter median 5.0 years’ follow-up, 194 deaths occurred in 1181 men without pre-existing cardiovascular disease. For each additional 30 min in sedentary behaviour, or light physical activity (LIPA), or 10 min in moderate to vigorous physical activity (MVPA), HRs for mortality were 1.17 (95% CI 1.10 to 1.25), 0.83 (95% CI 0.77 to 0.90) and 0.90 (95% CI 0.84 to 0.96), respectively. Adjustments for confounders did not meaningfully change estimates. Only LIPA remained significant on mutual adjustment for all intensities. The HR for accumulating 150 min MVPA/week in sporadic minutes (achieved by 66% of men) was 0.59 (95% CI 0.43 to 0.81) and 0.58 (95% CI 0.33 to 1.00) for accumulating 150 min MVPA/week in bouts lasting ≥10 min (achieved by 16% of men). Sedentary breaks were not associated with mortality.ConclusionsIn older men, all activities (of light intensity upwards) were beneficial and accumulation of activity in bouts ≥10 min did not appear important beyond total volume of activity. Findings can inform physical activity guidelines for older adults.

scholarly journals Improved Cognitive Function in the Tromsø Study in Norway From 2001 to 2016

2021 ◽  
pp. 10.1212/CPJ.0000000000001115
Author(s):  
Bente Johnsen ◽  
Bjørn Heine Strand ◽  
Ieva Martinaityte ◽  
Ellisiv B. Mathiesen ◽  
Henrik Schirmer
Keyword(s):  
Physical Activity ◽  
Birth Cohort ◽  
Age Groups ◽  
Cohort Effect ◽  
Cognitive Test ◽  
Birth Cohorts ◽  
Cohort Differences ◽  
Level Increase ◽  
Drinking Frequency ◽  
Birth Cohort Effect

AbstractObjective:Physical capacity and cardiovascular risk profiles seem to be improving in the population. Cognition have been improving due to a birth cohort effect, but evidence is conflicting on whether this improvement remains in the latest decades, and what is causing the changes in our population over 60 years old. We aimed to investigate birth cohort differences in cognition.Method:The study comprised 9514 participants from the Tromsø study, an ongoing longitudinal cohort study. Participants were in the ages 60–87 years, born between 1914 and 1956. They did four cognitive tests in three waves during 2001-2016. Linear regression was applied, and adjusted for age, education, blood pressure, smoking, hypercholesterolemia, stroke, heart attack, depression, diabetes, physical activity, alcohol use, BMI and height.Results:Cognitive test scores were better in later-born birth cohorts for all age groups, and in both sexes, compared with earlier born cohorts. Increased education, physical activity, alcohol intake, decreasing smoking prevalence and increasing height was associated with one third of this improvement across birth cohorts in women and one half of the improvement in men.Conclusion:Cognitive results were better in more recent born birth cohorts compared with earlier born, assessed at the same age. The improvement was present in all cognitive domains, suggesting an overall improvement in cognitive performance. The 80-year-olds assessed in 2015-16 performed like 60-year-olds assessed in 2001. The improved scores were associated with increased education level, increase in modest drinking frequency, increased physical activity and for men, smoking cessation and increased height.

scholarly journals Cohort profile: Norwegian survey of health and ageing (NORSE)

2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Bjørn Heine Strand ◽  
Vegard Skirbekk ◽  
Ellen Melbye Langballe ◽  
Sverre Bergh ◽  
Brynjar Landmark ◽  
...  
Keyword(s):  
Life Experience ◽  
Longitudinal Design ◽  
Age Groups ◽  
Population Based ◽  
National Registry ◽  
Cognitive Capacity ◽  
Health Examination ◽  
Birth Cohorts ◽  
Work Related ◽  
Financial Arrangements

Abstract Purpose The Norwegian Survey of Health and Ageing (NORSE) was set up to provide internationally comparable data on ageing in Norway, which includes measured intrinsic capacity and cognitive function. Participants NORSE is a population-based health examination study of seniors aged 60+ from the 1921–1958 birth cohorts in the former Norwegian county of Oppland, interviewed and examined during 2017–19 (N = 957, 16% response rate). NORSE is to some extent based on the SHARE-questionnaire (share-project.org), which includes work-related information, self-assessed and retrospective health, and expectations on longevity, quality of life, volunteering activities, consumption, and financial arrangements. In addition, several objective measures of intrinsic and cognitive capacity are included in NORSE. Findings to date A shorter preferred life expectancy (PLE) was found to be associated with the prospects of a life with dementia and chronic pain. Motivation for retirement was found to be related to work-life experience and health. Social media was mostly used in the younger age groups and there was a tendency towards more use in the higher educational groups. NORSE incorporates questions on religion, and older women tend to have a higher degree of religiosity (proxied as self-assessed religiosity) than men in their 80s, but more similar (and lower levels) among those in their 60s. Future plans NORSE participants have allowed their data to be linked to National registry data and midlife health examination studies and thereby provide a longitudinal design as well as information on disability status, socioeconomic status, household and marital status, support to/from children and parents, and pension status.

scholarly journals Joint associations between objectively measured physical activity volume and intensity with body-fatness. The Fenland Study

2021 ◽  
Author(s):  
Tim Lindsay ◽  
Katrien Wijndaele ◽  
Kate Westgate ◽  
Paddy Dempsey ◽  
Tessa Strain ◽  
...  
Keyword(s):  
Physical Activity ◽  
Vigorous Physical Activity ◽  
Large Population ◽  
Population Based ◽  
Fat Percentage ◽  
Body Fatness ◽  
Light Activity ◽  
Intense Activity ◽  
Objectively Measured ◽  
Objectively Measured Physical Activity

AbstractBackground/ObjectivesPhysical activity energy expenditure (PAEE) represents the total volume of all physical activity. This can be accumulated as different underlying intensity profiles. Although volume and intensity have been studied in isolation, less is known about their joint association with health. We examined this association with body-fatness in a population-based sample of middle-aged British women and men.Methods6148 women and 5320 men from the Fenland study with objectively-measured physical activity from individually calibrated combined heart rate and movement sensing and DXA-derived body-fat percentage (BF%) were included in the analyses. We used linear and compositional isocaloric substitution analysis to examine associations of PAEE and its intensity composition with body-fatness. Sex-stratified models were adjusted for socio-economic and dietary covariates.ResultsPAEE was inversely associated with body-fatness in women (beta=-0.16 (95%CI: −0.17; −0.15) BF% per kJ·day-1·kg-1) and men (beta=−0.09 (95%CI: −0.10; −0.08) BF% per kJ·day-1·kg-1). Intensity composition was significantly associated with body-fatness, beyond that of PAEE; the reallocation of energy to vigorous physical activity (>6 METs) from other intensities was associated with less body-fatness, whereas light activity (1.5-3 METs) was positively associated. However, light activity was the main driver of overall PAEE volume, and the relative importance of intensity was marginal compared to that of volume; the difference between PAEE in tertile 1 and 2 in women was associated with 3 percentage-point lower BF%. Higher vigorous physical activity in the same group to the maximum observed value was associated with 1 percentage-point lower BF%.ConclusionsIn this large, population-based cohort study with objective measures, PAEE was inversely associated with body-fatness. Beyond the PAEE association, greater levels of intense activity were also associated with lower body-fatness. This contribution was marginal relative to PAEE. These findings support current guidelines for obesity prevention which emphasise moving more over the specific intensity or duration of that activity.

Association of Body Mass Index in Adolescence and Young Adulthood and Long-term Risk of Multiple Sclerosis: A Population-Based Study

Neurology ◽  
2021 ◽  
pp. 10.1212/WNL.0000000000012957
Author(s):  
Rune A. Aa. Høglund ◽  
Haakon E. Meyer ◽  
Hein Stigum ◽  
Øivind Torkildsen ◽  
Nina Grytten ◽  
...  
Keyword(s):  
Multiple Sclerosis ◽  
Body Mass Index ◽  
Body Mass ◽  
Screening Program ◽  
Age Groups ◽  
Population Level ◽  
Population Based ◽  
Tuberculosis Screening ◽  
Objectively Measured

Objective:To prospectively investigate the long-term relationship between body mass index (BMI) in adolescents and young adults, and risk for multiple sclerosis (MS) at population level.Methods:We utilized data from the population-based compulsory Norwegian tuberculosis screening program during 1963-1975, including objectively measured height and weight from approximately 85% of all eligible citizens. This was combined with data from the Norwegian MS registry and biobank up to November 2020. BMI was standardized according to age and sex, and risk for MS was calculated using Cox proportional hazard models.Results:During 30,829,506 years of follow-up we found 1,409 cases of MS among 648,734 participants in eligible age groups (14-34 years). Overall, obesity was associated with increased MS risk (HR 1.53 [95% CI 1.25-1.88]), and the risk was similar in men (HR 1.4 [95% CI 0.95-2.06] and women (HR 1.59 [95% CI 1.25-2.02]). Risk was highest for the youngest age groups (age 14-16: HR 1.73 [95% CI 1.19-2.53], 17-19: HR 1.61 [95% CI 1.08-2.39] and 20-24: HR 1.56 [95% CI 1.04-2.36]) and was no longer present for those older than 30 years.Conclusion:High BMI in individuals aged 14 to 24 years was associated with increased MS-risk later in life, in both males and females.

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