John R Sirard
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Explore the profile of John R Sirard including associated specialties, affiliations and a list of published articles.
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56
Citations
2126
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Recent Articles
11.
Garcia J, Sirard J, Whaley D, Rice D, Baker K, Weltman A
Am J Health Promot
. 2018 May;
33(1):97-106.
PMID: 29768926
Background: Understanding factors that influence physical activity (PA) and sedentary behavior is crucial to develop interventions to improve adolescents' health-related behaviors. Purpose: To compare the influence of friends and psychosocial...
12.
Peterson N, Sirard J, Kulbok P, DeBoer M, Erickson J
Res Nurs Health
. 2018 Jan;
41(1):30-38.
PMID: 29315656
Movement and non-movement behaviors include sleep, sedentary behavior (SB) and physical activity (PA). While young adults are generally perceived as healthy, the level and relationship of SB and PA in...
13.
Brittin J, Frerichs L, Sirard J, Wells N, Myers B, Garcia J, et al.
PLoS One
. 2017 Dec;
12(12):e0189236.
PMID: 29216300
Background: Children spend a significant portion of their days in sedentary behavior (SB) and on average fail to engage in adequate physical activity (PA). The school built environment may influence...
14.
Sirard J, Masteller B, Freedson P, Mendoza A, Amanda Hickey
J Med Internet Res
. 2017 Jul;
19(7):e250.
PMID: 28724509
Background: Commercial activity trackers are growing in popularity among adults and some are beginning to be marketed to children. There is, however, a paucity of independent research examining the validity...
15.
Alhassan S, Sirard J, Kurdziel L, Merrigan S, Greever C, Spencer R
Pediatr Exerc Sci
. 2017 Mar;
29(2):268-277.
PMID: 28290759
Purpose: The purpose of this study was to cross-validate previously developed Actiwatch (AW; Ekblom et al. 2012) and AcitGraph (AG; Sirard et al. 2005; AG-P, Pate et al. 2006) cut-point...
16.
Garcia J, Agaronov A, Sirard J, Whaley D, Rice D, Weltman A
J Phys Act Health
. 2016 Dec;
14(3):213-221.
PMID: 27918697
Background: Sedentary behavior (SB) increases throughout adolescence, and is associated with adverse health outcomes. Purpose: Examine psychosocial and friend influences on SB and screen time in adolescents using a mixed-methods...
17.
Garcia J, Huang T, Trowbridge M, Weltman A, Sirard J
J Prim Prev
. 2016 Oct;
37(6):555-560.
PMID: 27785657
We compared the effects of traditional (stable) and non-traditional (dynamic) school furniture on children's physical activity (PA), energy expenditure (EE), information retention, and math skills. Participants were 12 students (8.3 ...
18.
Garcia J, Sirard J, Larsen R, Bruening M, Wall M, Neumark-Sztainer D
J Phys Act Health
. 2016 May;
13(9):957-63.
PMID: 27172613
Objective: The purpose of this study was to examine, using structural equation modeling, the associations between nominated friend physical activity (PA), friend social support with individual PA-related psychological factors, and...
19.
Garcia J, Sirard J, Deutsch N, Weltman A
J Behav Med
. 2016 Apr;
39(4):610-23.
PMID: 27055818
(1) Determine the association between adolescent moderate-to-vigorous physical activity (MVPA) and screen time with their nominated friends' behaviors and (2) explore potential mechanisms of friends' social influences on MVPA and...
20.
Peterson N, Sirard J, Kulbok P, DeBoer M, Erickson J
Res Nurs Health
. 2015 Oct;
38(6):492-9.
PMID: 26444969
Sedentary behavior (SB) is a major contributor to obesity and significant morbidity and mortality in adolescence and adulthood, yet measurement of SB is still evolving. The purpose of this study...