Megan MacDonald

Dr. Megan MacDonald

orcid

Research Focus & Metrics

Academic Career Length

26Years (2001-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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18 October 2011 in BMC Research Notes
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Journal Article
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MMMegan MacDonald
Megan MacDonald
PEPhil Esposito
Phil Esposito
DUDale Ulrich
Dale Ulrich
Although motor deficits are gaining attention in autism research much less attention has been paid to the physical activity patterns in this group of children. The participants in this study were a group of children with autism spectrum disorder (N = 72) between the ages of 9-18 years. This cross-sectional study explored the physical activity patterns of seventy-two children with autism spectrum disorder as they aged.

1 November 2013 in Research in Autism Spectrum Disorders
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Journal Article
Closed access
MMMegan MacDonald
Megan MacDonald
CLCatherine Lord
Catherine Lord
DUDale Ulrich
Dale Ulrich

1 January 2014 in Autism Research and Treatment
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Journal Article
Open access
PDF file
KTKiley Tyler
Kiley Tyler
MMMegan MacDonald
Megan MacDonald
KMKristi Menear
Kristi Menear
Autism spectrum disorder (ASD) is characterized by impairments in social communication deficits and the presence of restricted and repetitive behaviors, interests, or activities. Literature comparing the physical activity and fitness of children with ASD to typically developing peers is in need of attention. The purpose of this investigation was to examine the physical activity and fitness of school-aged children with ASD (N=17) in comparison to typically developing peers (N=12). Participants with ASD completed diagnostic and developmental assessments and a series of physical fitness assessments: 20-meter multistage shuttle, sit-and-reach test, handgrip strength, and body mass index. Physical activity was measured using accelerometry and preestablished cut-points of physical activity (Freedson et al., 2005). MANCOVA revealed significant between-group effects in strength (P=.03), while ANCOVA revealed significant between-group effects in sedentary (P=.00), light (P=.00), moderate (P=.00), and total moderate-to-vigorous (P=.01) physical activity. Children with ASD are less physically active and fit than typically developing peers. Adapted physical activity programs are one avenue with intervention potential to combat these lower levels of physical activity and fitness found in children with ASD.

9 March 2017 in Environmental Health
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Journal Article
Open access
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SLShannon T. Lipscomb
Shannon T. Lipscomb
MMMegan M. McClelland
Megan M. McClelland
MMMegan MacDonald
Megan MacDonald
ACAndres Cardenas
Andres Cardenas
KAKim A. Anderson
Kim A. Anderson
MKMolly Kile
Molly Kile
Children are exposed to flame retardants from the built environment. Brominated diphenyl ethers (BDE) and organophosphate-based flame retardants (OPFRs) are associated with poorer neurocognitive functioning in children. Less is known, however, about the association between these classes of compounds and children’s emotional and social behaviors. The objective of this study was to determine if flame retardant exposure was associated with measurable differences in social behaviors among children ages 3–5 years. We examined teacher-rated social behaviors measured using the Social Skills Improvement Rating Scale (SSIS) and personal exposure to flame retardants in children aged 3–5 years who attended preschool (n = 72). Silicone passive samplers worn for 7 days were used to assess personal exposure to 41 compounds using gas chromatography-mass spectrophotometer. These concentrations were then summed into total BDE and total OPFR exposure prior to natural log transformation. Separate generalized additive models were used to evaluate the relationship between seven subscales of the SSIS and lnΣBDE or lnΣOPFR adjusting for other age, sex, adverse social experiences, and family context. All children were exposed to a mixture of flame retardant compounds. We observed a dose dependent relationship between lnΣOPFR and two subscales where children with higher exposures were rated by their preschool teachers as having less responsible behavior (p = 0.07) and more externalizing behavior problems (p = 0.03). Additionally, children with higher lnΣBDE exposure were rated by teachers as less assertive (p = 0.007). We observed a cross-sectional association between children’s exposure to flame retardant compounds and teacher-rated social behaviors among preschool-aged children. Children with higher flame retardant exposures exhibited poorer social skills in three domains that play an important role in a child’s ability to succeed academically and socially.

15 April 2021 in Journal of Autism and Developmental Disorders
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Journal Article
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Ming-Chih SungMing-Chih Sung
Ming-Chih Sung
BKByungmo Ku
Byungmo Ku
WLWillie Leung
Willie Leung
MMMegan MacDonald
Megan MacDonald

XSXiangyou Shen
Xiangyou Shen
MMMegan MacDonald
Megan MacDonald
SLSamuel Logan
Samuel Logan
CPColby Parkinson
Colby Parkinson
LGLydia Gorrell
Lydia Gorrell
BHBridget E. Hatfield
Bridget E. Hatfield
Leisure engagement has risen as a salient societal issue during the COVID-19 pandemic, not only because it provides a pathway for people to continue meeting their physical, cognitive, and social-emotional needs, but also due to the phenomenal juxtaposition of general increases in leisure time and unparalleled constraints. This study reports the results of the first investigation of U.S. adults’ overall leisure engagement and its association with mental health amidst the major disruptions and sustained stress of the COVID-19 pandemic. Qualitative and quantitative data were collected through an online survey in February 2021 through Prolific from a sample representative of the U.S. adult population in age, gender, and race (n = 503) and analyzed using a mixed-method approach. A total of 104 unique leisure activities in 19 categories and 3 domains were identified through iterative thematic coding. Participants reported general increases in home-based traditional leisure and digital/online activities and decreases in physical and nature-based activities. Multiple regression analyses controlling for socio-demographic and context-specific covariates revealed distinct associations between changes in leisure engagement and different aspects of mental health (perceived stress, depressive symptoms, and mental wellbeing), supporting leisure’s dual role in facilitating stress alleviation and wellbeing enhancement during taxing events, such as COVID-19.