| European Youth Heart Study7
|
Cross-sectional |
4 European countries: Odense (Denmark), Island of Madeira (Portugal), Tartu (Estonia), and Oslo (Norway) |
Not reported |
ActiGraph MTI 7164 |
2185 children (number of girls not reported); 9 and 15 years of age (number in each age group not reported) |
60 s |
4 days, including 1 weekend; hip/waist; removal at bedtime and for water activities |
⩾10 min of consecutive zeros |
⩾3 Days (⩾10 h wear time), including 1 weekend |
| HELENA study23
|
Cross-sectional |
10 cities from 9 European countries: Athens (Greece), Dortmund (Germany), Ghent (Belgium), Heraklion (Greece), Lille (France), Pecs (Hungary), Rome (Italy), Stockholm (Sweden), Vienna (Austria), and Zaragoza (Spain) |
2006–2008 |
ActiGraph GT1M |
2200 adolescents (1184 girls); 12.5–17.5 years of age |
15 s |
7 days; lower back; removal at bedtime and for water activities |
⩾20 min of consecutive zeros |
⩾3 days (⩾8 h wear time) |
| ENERGY-project10
|
Cross-sectional |
5 European countries: Belgium, Greece, Hungary, Switzerland and the Netherlands |
2010 |
3 ActiGraph models: Actitrainers (triaxial), GT3Xs and GT1Ms |
1082 children (552 girls); 10–12 years of age |
15 s |
6 days including 2 weekends; waist/right side; removal at bedtime and for water activities |
⩾20 min of consecutive zeros |
⩾3 weekdays (⩾10 h wear time) and ⩾1 weekend (⩾8 h wear time) |
| IDEFICS24
|
Prospective cohort with embedded intervention |
8 European countries: Sweden, Germany, Hungary, Italy, Cyprus, Spain, Belgium and Estonia |
Baseline: September 2007 to June 2008 Follow-up: September 2010 to May 2011 |
ActiGraph GT1M or ActiTrainer activity monitor |
7684 children (3842 girls); 2.0–10.9 years of age |
15 s (60 s epoch inadvertently used in a portion of the sample). Analysis done with 60 s. |
⩾3 days (including 1 weekend); right hip; removal at bedtime |
⩾20 min of consecutive zeros |
⩾3 days with at least 8 h of wear time |
| ISCOLE6, 11
|
Cross-sectional |
15 cities from 12 international countries: Adelaide (Australia), Bangalore (India), Bath and NE Somerset (United Kingdom), Baton Rouge (United States), Bogota (Colombia), Cape Town (South Africa), Helsinki, Espoo and Vantaa (Finland), Nairobi (Kenya), Ottawa (Canada), Porto (Portugal), São Paulo (Brazil) and Tianjin (China) |
September 2011 to Dec 2013 |
ActiGraph GT3X+ |
7372 children; 9–11 years of age; 6553 with valid accelerometry data21
|
80-Hz data collection, 15 and 60 s with low-frequency extension enable for analysis |
7 days removal only for water activities; right hip in line with mid-axillary line |
⩾20 min of consecutive zeros |
⩾ 4 days (including 1 weekend day); right hip in line with mid-axillary line |
