John R Sirard
Overview
Explore the profile of John R Sirard including associated specialties, affiliations and a list of published articles.
Author names and details appear as published. Due to indexing inconsistencies, multiple individuals may share a name, and a single author may have variations. MedLuna displays this data as publicly available, without modification or verification
Snapshot
Snapshot
Articles
56
Citations
2126
Followers
0
Related Specialties
Related Specialties
Top 10 Co-Authors
Top 10 Co-Authors
Published In
Published In
Affiliations
Affiliations
Soon will be listed here.
Recent Articles
1.
Pachucki M, Hoyt L, Niu L, Carbonaro R, Tu H, Sirard J, et al.
PLoS One
. 2024 May;
19(5):e0300715.
PMID: 38753625
With the onset of puberty, youth begin to choose their social environments and develop health-promoting habits, making it a vital period to study social and biological factors contextually. An important...
2.
Ma T, Sirard J, Jennings L
J Phys Act Health
. 2023 Apr;
20(6):547-554.
PMID: 37076242
Introduction: Early morning is characterized by an increased risk of cardiovascular events, a sudden rise in blood pressure, impaired endothelial function, and exacerbated hemodynamic changes during physical activity. The study...
3.
Ma T, Jennings L, Sirard J, Xie Y, Lee C
Chronobiol Int
. 2023 Jan;
40(3):324-334.
PMID: 36691906
Cardiovascular physiology and pathophysiology display pronounced circadian rhythms. The study is designed to examine whether the time of day of physical activity is associated with cardiovascular mortality. We analyzed 94,489...
4.
Chase J, Busa M, Staudenmayer J, Sirard J
Sensors (Basel)
. 2022 Jul;
22(13).
PMID: 35808535
This study determined if using alternative sleep onset (SO) definitions impacted accelerometer-derived sleep estimates compared with polysomnography (PSG). Nineteen participants (48%F) completed a 48 h visit in a home simulation...
5.
Kubik M, Lee J, Fulkerson J, Gurvich O, Sirard J
Child Obes
. 2021 Feb;
17(3):185-195.
PMID: 33601934
The primary aim of this randomized controlled trial, conducted in Minneapolis/St. Paul, Minnesota (2014-2019), was to evaluate the effects of a school-based, school nurse-delivered, secondary obesity prevention intervention to reduce...
6.
Schroeder K, Kubik M, Sirard J, Lee J, Fulkerson J
Am J Health Behav
. 2020 Oct;
44(6):756-764.
PMID: 33081874
Pathways underlying the sleep-obesity relationship in youth are poorly understood. In this study, we examined associations of sleep with sedentary time and moderate-to-vigorous physical activity (MVPA) among youth, stratified by...
7.
Schroeder K, Kubik M, Lee J, Sirard J, Fulkerson J
J Phys Act Health
. 2019 Nov;
17(1):74-79.
PMID: 31756720
Background: Youth experience a decrease in physical activity (PA) and an increase in sedentary time during adolescence. Better understanding of factors associated with activity levels during preadolescence may inform interventions...
8.
Marcotte R, Petrucci Jr G, Cox M, Freedson P, Staudenmayer J, Sirard J
Med Sci Sports Exerc
. 2019 Jul;
52(1):225-232.
PMID: 31343523
Purpose: This study aimed to determine the validity of existing methods to estimate sedentary behavior (SB) under free-living conditions using ActiGraph GT3X+ accelerometers (AG). Methods: Forty-eight young (18-25 yr) adults...
9.
Tudor-Locke C, Aguiar E, Han H, Ducharme S, Schuna Jr J, Barreira T, et al.
Int J Behav Nutr Phys Act
. 2019 Jan;
16(1):8.
PMID: 30654810
Background: Previous studies have reported that walking cadence (steps/min) is associated with absolutely-defined intensity (metabolic equivalents; METs), such that cadence-based thresholds could serve as reasonable proxy values for ambulatory intensities....
10.
Kubik M, Fulkerson J, Sirard J, Garwick A, Temple J, Gurvich O, et al.
Contemp Clin Trials
. 2018 Oct;
75:9-18.
PMID: 30342255
Rising levels of severe obesity among children, worsening disparities by race and ethnicity and reluctance of primary care clinicians' to provide obesity management to children are compelling reasons to consider...