Objectively measured physical activity and sedentary time in young adults born preterm—The ESTER study

Background: This study examined the distribution of objectively measured physical activity (PA) and sedentary time of fifth-grade students during school, leisure time, and physical education (PE) classes. Demographic, anthropometric, and PA data were collected from 17 representative Finnish schools. Methods: To estimate the PA and sedentary time, participants (N = 592) wore wGT3X-BT ActiGraphs for 7 consecutive days. Comparisons were made between genders and different BMI groups. Results: From the study sample, 43.7% met the moderate to vigorous PA (MVPA) guidelines. Participants spent 62.2% of the day sedentary and 8.2% in moderate and vigorous activities. Boys performed more MVPA than girls, and girls were more sedentary during school days. Boys had more MVPA than girls in leisure time, but there were no differences in sedentary time. However, an examination of PA assessed during PE classes revealed no differences between boys and girls. Normal-weight boys engaged in more MVPA than overweight and obese boys. No differences were found for girls. Conclusions: The PA levels differ between different BMI groups in leisure time and during school but not during PE lessons. PA for overweight children should be targeted and compulsory PE time should be increased to achieve the PA guidelines.

Download Full-text

Objectively measured physical activity according to the periods of the day in the Pelotas Cohort

Revista Brasileira de Atividade Física & Saúde ◽

10.12820/rbafs.25e0149 ◽

2020 ◽

Vol 25 ◽

pp. 1-10

Author(s):

Andrea Wendt ◽

Fernando C. Wehrmeister ◽

Luiza I. C. Ricardo ◽

Bruna Gonçalves C. da Silva ◽

Rafaela C. Martins ◽

...

Keyword(s):

Physical Activity ◽

Young Adults ◽

Birth Cohort ◽

Socioeconomic Position ◽

Triaxial Accelerometer ◽

Cross Sectional ◽

Cross Sectional Analysis ◽

Objectively Measured ◽

Sectional Analysis ◽

Objectively Measured Physical Activity

This study aims to describe objectively measured physical activity (PA) in different periods of the day in young adults according to sex, socioeconomic position and during weekdays and weekends. This is a cross-sectional analysis carried out with the participants of the 1993 Pelotas Birth Cohort at 22 years. PA was assessed by triaxial accelerometer. Descriptive analyses were performed presenting the time spent on light PA (LPA) and bouted moderate to vigorous PA (MVPA) in different periods of the day (morning - 6am to 11:59 am, afternoon – 12pm to 7:59 pm and night – 8pm to 11:59pm). The present study included 2,766 individuals (48.2% male and 51.8% female). LPA was higher among women, while bouted MVPA levels were higher among men. The median of PA was higher on weekdays compared to weekends for all intensities. The bouted MVPA medians in the morning and at night were zero minutes for all days and both sexes. The richest group presented a higher percentage of individuals with zero minutes. PA may vary according to different periods of the day and intensity. The absence of PA practice was markedly influenced by sex and socioeconomic position.

Download Full-text

Associations of objectively measured physical activity and sedentary time with pregnancy-specific health-related quality of life

Midwifery ◽

10.1016/j.midw.2021.103202 ◽

2021 ◽

pp. 103202

Author(s):

Kara M. Whitaker ◽

Melissa Jones ◽

McKenzie K. Wallace ◽

Janet Catov ◽

Bethany Barone Gibbs

Keyword(s):

Quality Of Life ◽

Physical Activity ◽

Sedentary Time ◽

Health Related Quality ◽

Related Quality ◽

Health Related ◽

Objectively Measured ◽

Objectively Measured Physical Activity ◽

Specific Health

Download Full-text

Associations of Objectively Measured Physical Activity and Sedentary Time with the Risk of Stroke, Myocardial Infarction or All-Cause Mortality in 70-Year-Old Men and Women: A Prospective Cohort Study

Sports Medicine ◽

10.1007/s40279-020-01356-y ◽

2020 ◽

Author(s):

Marcel Ballin ◽

Peter Nordström ◽

Johan Niklasson ◽

Anna Nordström

Keyword(s):

Physical Activity ◽

Myocardial Infarction ◽

Lower Risk ◽

Sedentary Time ◽

Moderate Intensity ◽

Men And Women ◽

All Cause Mortality ◽

Objectively Measured ◽

Incident Cases ◽

Objectively Measured Physical Activity

Abstract Objective To study the associations of objectively measured physical activity (PA) and sedentary time (ST) with the combined outcome of incident stroke, myocardial infarction (MI) or all-cause mortality in older adults. Methods N = 3343 men and women aged 70 who participated in a health survey between 2012 and 2017 were included. Actigraph GT3X+ accelerometers were used to measure light-intensity PA (LPA), moderate-intensity PA (MPA) and ST for 1 week. Incident cases of cardiovascular disease (CVD) in terms of stroke or MI, and all-cause mortality were identified using national registers. Hazard ratios (HR) and 95% confidence intervals (CI) were estimated using multivariable-adjusted Cox regressions. Results During a mean follow-up of 2.7 years (0.1–5.6), there were 124 events of CVD or all-cause mortality. After adjusting for potential confounders and mediators, every 30-min/day increment in LPA was associated with 11% lower risk of CVD or all-cause mortality (HR 0.89, 95% CI 0.82–0.97), and every 30-min/day increment in MPA was associated with 36% lower risk (HR 0.64, 95% CI 0.48–0.84). Every 1-h/day increment in ST increased the risk of the outcomes by 33% (HR 1.33, 95% CI 1.14–1.56), although there was no significant association among participants who performed ≥ 30 min/day MPA (HR 1.11, 95% CI 0.82–1.50, P = 0.034 for interaction). None of the associations were modified by sex (P > 0.4 for all). Conclusion Objectively measured LPA and MPA are each associated with lower risk of stroke, MI or all-cause mortality in 70-year-old individuals, while ST is associated with increased risk. The greatest risk reduction is observed for MPA, which also appears to attenuate some of the increased risks associated with ST.

Download Full-text