S08-3 Physical activity, sedentary behavior and sleep-time of Eupasmos-project participants in 16 European countries: European Union Physical Activity and Sport Monitoring System (EUPASMOS) project

Abstract Background Increasing number of studies use device-based measurements to report levels of physical activity (PA) and sedentary behavior (SB) of populations. The studies have used different devices, device placements and analysis methods, and thus the comparison of the results between studies and populations is very challenging. The purpose of the present study was to present preliminary results of PA, SB and sleep-time measured with a similar method among adults of 16 European countries. Methods The study is based on the Eupasmos-project where PA, SB and sleep-time of the participants (n = 6674) were measured by a tri-axial accelerometer 24/7 (UKK RM42, UKK Terveyspalvelut Oy, Tampere, Finland). Accelerometer was worn on an elastic hip-band during waking-hours and on a wrist-band attached to a non-dominant wrist during bed-time (sleeping). PA-parameters were based on mean amplitude deviation (MAD) of acceleration analyzed in 1min exponential moving average (epoch length 6s). Assessment of SB (e.g. sitting and laying down) and standing were based on the angle for posture estimation (APE). Sleep measurement was based on the movement of a non-dominant wrist during bed-time. Parameters analyzed were total daily times and different bout lengths of SB, standing, light PA, moderate-to-vigorous PA, sleep and mean number of daily steps. Results The preliminary analysis included 47-1952 participants/country. In all countries participants spent most of their waking-hours sedentary. On weekdays the country-mean of SB varied from 8h18min to 10h7min. Participants took on average 6907-9716 steps/day. Light PA varied from 3h46min to 5h10min and moderate-to-vigorous PA from 45 to 78min. Participants wore the device on their wrist (sleeping-time) 6h42min-8h37min on weekdays. Although the total times of these behaviors were quite similar between the countries, the variation increased when different bout lengths were analyzed: the longer the bout length, the larger the variation. The hour-by-hour pattern of these behaviors varied a lot between the countries as well. Conclusions General pattern of SB, PA and sleep-time was quite similar in all countries, but the deeper analysis revealed clear differences. To be able to compare levels and patterns of these behaviors it is essential to use the exactly same method in all participating countries.


Background
Increasing number of studies use device-based measurements to report levels of physical activity (PA) and sedentary behavior (SB) of populations. The studies have used different devices, device placements and analysis methods, and thus the comparison of the results between studies and populations is very challenging. The purpose of the present study was to present preliminary results of PA, SB and sleep-time measured with a similar method among adults of 16 European countries.

Methods
The study is based on the Eupasmos-project where PA, SB and sleep-time of the participants (n = 6674) were measured by a tri-axial accelerometer 24/7 (UKK RM42, UKK Terveyspalvelut Oy, Tampere, Finland). Accelerometer was worn on an elastic hip-band during waking-hours and on a wrist-band attached to a non-dominant wrist during bed-time (sleeping). PA-parameters were based on mean amplitude deviation (MAD) of acceleration analyzed in 1min exponential moving average (epoch length 6s). Assessment of SB (e.g. sitting and laying down) and standing were based on the angle for posture estimation (APE). Sleep measurement was based on the movement of a non-dominant wrist during bed-time. Parameters analyzed were total daily times and different bout lengths of SB, standing, light PA, moderate-to-vigorous PA, sleep and mean number of daily steps.

Results
The preliminary analysis included 47-1952 participants/ country. In all countries participants spent most of their waking-hours sedentary. On weekdays the country-mean of SB varied from 8h18min to 10h7min. Participants took on average 6907-9716 steps/day. Light PA varied from 3h46min to 5h10min and moderate-to-vigorous PA from 45 to 78min. Participants wore the device on their wrist (sleeping-time) 6h42min-8h37min on weekdays. Although the total times of these behaviors were quite similar between the countries, the variation increased when different bout lengths were analyzed: the longer the bout length, the larger the variation. The hourby-hour pattern of these behaviors varied a lot between the countries as well.

Conclusions
General pattern of SB, PA and sleep-time was quite similar in all countries, but the deeper analysis revealed clear differences.
To be able to compare levels and patterns of these behaviors it is essential to use the exactly same method in all participating countries. Keywords: sedentary behavior, accelerometer, sleep, Europe Abstract citation ID: ckac093.043 S08-4 In terms of individual fitness, people with low cardiorespiratory fitness are physically the most active

Background
Depending on cardiorespiratory fitness (CRF), people may perceive differently the exertion of incident physical activity (PA). It has been proposed to use thresholds relative to individual fitness in PA monitoring when it is feasible. Methods  1952 adults (803 men, 1149 women), aged 20-69 years participated in the FinFit2017 (EUPASMOS) -study. Their VO2max was predicted with 6 min walking test and they had accelerometer wear time at least four days with minimum of 24 h/day during seven consecutive days of measurement period. The participants were divided into CRF thirds by age groups and sex. Acceleration data was analyzed in 6s epochs and intensity in MET (metabolic equivalent) values was calculated for each epoch. MET values were smoothed with 1min exponential moving average. The epoch activity was classified into moderate-to-vigorous PA (MVPA) using both absolute (3.0MET) and individual (40% of the oxygen uptake reserve) thresholds. The accumulated MVPA time was calculated for bouts at least 0.1, 1.5, 3.0, 5.0, 10.0, 15.0, 20.0, 30.0 and 60.0 minutes. Population-weighted average of accumulated PA times in CRF-thirds and partial Spearman correlations controlled by age and sex between bout lengths and VO2max were calculated for both absolute and relative thresholds.

Results
Participants in the lowest CRF-third accumulated the most (p > 0.05) MVPA time with relative threshold (22min (low); 15min (middle); 12min (high)) and the highest third (40min (low); 50min (middle); 56min (high)) with absolute threshold. The correlations were negative with individual thresholds, if short bouts were counted into accumulated time, and significant positive correlation (r = 0.048) was achieved only with at least 60.0min bouts. The correlations were significantly positive for all bout lengths with absolute thresholds and the highest correlation was achieved with at least 0.1min bouts (r = 0.295).

Conclusions
The lowest fitness third was the most active when the PA intensity was analyzed using relative thresholds. Their PA was mostly accumulated from short, few minute bouts. Thus, they had to utilize more of their aerobic capacity on daily basis just