Journal: Preventive medicine

Article Title: Review of physical activity measurement using accelerometers in older adults: Considerations for research design and conduct

doi: 10.1016/j.ypmed.2008.12.001

Figure Lengend Snippet: Types of piezoelectric sensors in accelerometers by brand

Article Snippet: Actical , Mini-Mitter Sunriver, OR , Uniaxial; Omni-directional , 2.8×2.7×1.0 cm 17.5 g , $950 w/software $450 per unit , Wrist, hip, or ankle , Records epochs from 15 s to 1 min. , Stores up to 45 d of data using 1 min. epochs , Activity counts Step counts Energy expenditure , Welk et al., 2004 Crouter et al., 2006 Rothney et al., 2008a , b Esliger and Tremblay, 2006 Esliger et al., 2007 Heil, 2006 Klippel NJ, 2003.

Techniques:

Journal: Preventive medicine

Article Title: Review of physical activity measurement using accelerometers in older adults: Considerations for research design and conduct

doi: 10.1016/j.ypmed.2008.12.001

Figure Lengend Snippet: Overview of commonly-used accelerometers

Article Snippet: Actical , Mini-Mitter Sunriver, OR , Uniaxial; Omni-directional , 2.8×2.7×1.0 cm 17.5 g , $950 w/software $450 per unit , Wrist, hip, or ankle , Records epochs from 15 s to 1 min. , Stores up to 45 d of data using 1 min. epochs , Activity counts Step counts Energy expenditure , Welk et al., 2004 Crouter et al., 2006 Rothney et al., 2008a , b Esliger and Tremblay, 2006 Esliger et al., 2007 Heil, 2006 Klippel NJ, 2003.

Techniques: Activity Assay, Software

Journal: PLoS ONE

Article Title: Convergent validity of ActiGraph and Actical accelerometers for estimating physical activity in adults

doi: 10.1371/journal.pone.0198587

Figure Lengend Snippet: Characteristics of the sample.

Article Snippet: Participants wore ActiGraph GT3X+ and Actical accelerometers for three consecutive days.

Techniques:

Journal: PLoS ONE

Article Title: Convergent validity of ActiGraph and Actical accelerometers for estimating physical activity in adults

doi: 10.1371/journal.pone.0198587

Figure Lengend Snippet: Scatterplot depicting the relationship between ActiGraph (normal filter) and Actical counts per minute (CPM) (r = 0.815).

Article Snippet: Participants wore ActiGraph GT3X+ and Actical accelerometers for three consecutive days.

Techniques:

Journal: PLoS ONE

Article Title: Convergent validity of ActiGraph and Actical accelerometers for estimating physical activity in adults

doi: 10.1371/journal.pone.0198587

Figure Lengend Snippet: Bland-Altman plots comparing ActiGraph (normal filter) and Actical estimates of time spent in (A) sedentary, (B) light, (C) moderate, and (D) vigorous physical activity.

Article Snippet: Participants wore ActiGraph GT3X+ and Actical accelerometers for three consecutive days.

Techniques: Activity Assay

Journal: PLoS ONE

Article Title: Convergent validity of ActiGraph and Actical accelerometers for estimating physical activity in adults

doi: 10.1371/journal.pone.0198587

Figure Lengend Snippet: Minute-by-minute agreement between ActiGraph (normal filter; Freedson et al cut points [ 15 ]) and Actical using three different protocols. The highest kappa statistic(s) for each intensity level is bolded.

Article Snippet: Participants wore ActiGraph GT3X+ and Actical accelerometers for three consecutive days.

Techniques:

Journal: PLoS ONE

Article Title: Convergent validity of ActiGraph and Actical accelerometers for estimating physical activity in adults

doi: 10.1371/journal.pone.0198587

Figure Lengend Snippet: Minute-by-minute agreement between ActiGraph (LFE filter; Freedson et al cut points [ 15 ]) and Actical using three different protocols. The highest kappa statistic(s) for each intensity level is bolded.

Article Snippet: Participants wore ActiGraph GT3X+ and Actical accelerometers for three consecutive days.

Techniques:

Journal: Frontiers in Psychiatry

Article Title: ActiGraph GT3X+ and Actical Wrist and Hip Worn Accelerometers for Sleep and Wake Indices in Young Children Using an Automated Algorithm: Validation With Polysomnography

doi: 10.3389/fpsyt.2019.00958

Figure Lengend Snippet: Site placements for wrist and waist worn ActiGraph GT3X+ and Actical accelerometers.

Article Snippet: The aims of this study are to: 1) validate the count-scaled algorithm against overnight PSG in children aged 5 to 8 years using two devices; the omnidirectional Actical and the triaxial ActiGraph GTX3+, 2) to compare different site placements (wrist vs hip) to determine the best placement site for measuring sleep, and 3) to compare the count-scaled automated algorithm to the most common algorithm used in child actigraphy, the Sadeh algorithm.

Techniques:

Journal: Frontiers in Psychiatry

Article Title: ActiGraph GT3X+ and Actical Wrist and Hip Worn Accelerometers for Sleep and Wake Indices in Young Children Using an Automated Algorithm: Validation With Polysomnography

doi: 10.3389/fpsyt.2019.00958

Figure Lengend Snippet: Sensitivity, specificity, and accuracy of epoch-by-epoch comparisons with PSG of the two accelerometers placed at the hip and the wrist.

Article Snippet: The aims of this study are to: 1) validate the count-scaled algorithm against overnight PSG in children aged 5 to 8 years using two devices; the omnidirectional Actical and the triaxial ActiGraph GTX3+, 2) to compare different site placements (wrist vs hip) to determine the best placement site for measuring sleep, and 3) to compare the count-scaled automated algorithm to the most common algorithm used in child actigraphy, the Sadeh algorithm.

Techniques:

Journal: Frontiers in Psychiatry

Article Title: ActiGraph GT3X+ and Actical Wrist and Hip Worn Accelerometers for Sleep and Wake Indices in Young Children Using an Automated Algorithm: Validation With Polysomnography

doi: 10.3389/fpsyt.2019.00958

Figure Lengend Snippet: Comparison of Actical measured sleep outcomes to PSG and comparison of wrist and hip positioned devices.

Article Snippet: The aims of this study are to: 1) validate the count-scaled algorithm against overnight PSG in children aged 5 to 8 years using two devices; the omnidirectional Actical and the triaxial ActiGraph GTX3+, 2) to compare different site placements (wrist vs hip) to determine the best placement site for measuring sleep, and 3) to compare the count-scaled automated algorithm to the most common algorithm used in child actigraphy, the Sadeh algorithm.

Techniques: Comparison