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Justin J. Lang
Public Health Agency of Canada
34Publications
11H-index
702Citations
Publications 34
Newest
#1Grant R. TomkinsonH-Index: 24
#2Justin J. Lang (Public Health Agency of Canada)H-Index: 11
Last.S TremblayMarkH-Index: 71
view all 7 authors...
In their editorial, Armstrong and Welsman1 suggest that the 20 m shuttle run test (20mSRT) (mis)represents and (mis)interprets youth cardiorespiratory fitness (CRF), and potentially (mis)informs health promotion and clinical practice. Their main arguments are: (a) the 20mSRT only provides an estimate of CRF (ie, peak ![Formula][1] O2) and (b) estimates are ratio-scaled (ie, expressed relative to body mass). In this response we provide several reasons, rooted in evidence, which refute their inter...
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#1Justin J. Lang (Public Health Agency of Canada)H-Index: 11
#2Emily Wolfe Phillips (Public Health Agency of Canada)H-Index: 1
Last.Stephanie A. Prince (U of O: University of Ottawa)H-Index: 12
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The objective of this study was to establish cut-points to help identify potential clustered cardiometabolic risk among children (9–13 years) and youth (14–17 years) using the modified Canadian Aer...
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#1Justin J. Lang (Children's Hospital of Eastern Ontario)H-Index: 11
#2S TremblayMark (Children's Hospital of Eastern Ontario)H-Index: 71
Last.Grant R. TomkinsonH-Index: 24
view all 5 authors...
Purpose To identify criterion-referenced standards for cardiorespiratory fitness (CRF); to estimate the percentage of children and youth that met each standard; and to discuss strategies to help improve the utility of criterion-referenced standards for population health research. Methods A search of four databases was undertaken to identify papers that reported criterion-referenced CRF standards for children and youth generated using the receiver operating characteristic curve technique. A pseud...
12 CitationsSource
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#1Grant R. Tomkinson (UND: University of North Dakota)H-Index: 24
#2Justin J. Lang (Public Health Agency of Canada)H-Index: 11
Last.S TremblayMarkH-Index: 71
view all 5 authors...
Cardiorespiratory fitness (CRF) is a good summative measure of the body’s ability to perform continuous, rhythmic, dynamic, large-muscle group physical activity, and exercise. In children, CRF is m...
2 CitationsSource
#1Grant R. TomkinsonH-Index: 24
#2Justin J. Lang (Children's Hospital of Eastern Ontario)H-Index: 11
Last.S TremblayMark (Children's Hospital of Eastern Ontario)H-Index: 71
view all 3 authors...
Objective To estimate international and national temporal trends in the cardiorespiratory fitness (CRF) of children and adolescents and to examine relationships between temporal trends in CRF and temporal trends in broad socioeconomic and health-related indicators across countries. Methods Data were obtained from a systematic search of studies that explicitly reported 20 m shuttle run test (a validated measure of CRF) descriptive data on apparently healthy individuals aged 9–17 years. Following ...
19 CitationsSource
#1Justin J. LangH-Index: 11
#2Richard Larouche (U of L: University of Lethbridge)H-Index: 15
Last.Mark S. TremblayH-Index: 4
view all 3 authors...
Source
#1Justin J. Lang (Public Health Agency of Canada)H-Index: 11
#2Richard Larouche (U of L: University of Lethbridge)H-Index: 15
Last.Mark S. TremblayH-Index: 4
view all 3 authors...
2 CitationsSource
#1Heather Orpana (U of O: University of Ottawa)H-Index: 20
#2Laurie B. Marczak (UW: University of Washington)H-Index: 21
Last.Mohsen Naghavi (UW: University of Washington)H-Index: 86
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Objectives To use the estimates from the Global Burden of Disease Study 2016 to describe patterns of suicide mortality globally, regionally, and for 195 countries and territories by age, sex, and Socio-demographic index, and to describe temporal trends between 1990 and 2016. Design Systematic analysis. Main outcome measures Crude and age standardised rates from suicide mortality and years of life lost were compared across regions and countries, and by age, sex, and Socio-demographic index (a com...
15 CitationsSource
#1Heather Orpana (U of O: University of Ottawa)H-Index: 20
#2Justin J. Lang (Public Health Agency of Canada)H-Index: 11
Last.Jessica Halverson (Public Health Agency of Canada)H-Index: 4
view all 4 authors...
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