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Introduction: The COVID-19 pandemic has resulted in higher-than-normal levels of anxiety and depression, especially among graduate students whose academic trajectory was disrupted. Physical activity and trait resiliency have both been shown to protect against stress-induced anxiety and depression during the pandemic. However, it remains unknown whether the same was true for graduate students and what biological mechanism, such as heart rate variability (HRV) might underpin these relationships. Method: We examined change in stress, current physical activity, and trait resiliency to identify key factors associated with better mental health outcomes in a national sample of graduate students (N = 61) who were recruited during the COVID-19 pandemic. We evaluated the unique contributions of change in graduate-school-related stress, physical activity (moderate, vigorous, and fitness), and trait resiliency to both anxiety and depression. We conducted moderation analyses to explore the processes through which these variables interact and mediation analyses to examine whether HRV was part of the underlying mechanism. Questionnaire were used to assess graduate-school-related stress, physical activity (moderate, vigorous), and trait resiliency. We estimated physical fitness using the six-minute walk test and captured resting HRV using a validated mobile application. Results: Graduate students reporting greater change in school-related stress were more anxious and depressed; however, those who engaged in more moderate physical activity were less anxious and those with higher trait resiliency were less anxious and depressed. Moderation analyses revealed a “stress threshold” for moderate physical activity whereby students who were more physically active were more protected from anxiety symptoms than their lower active peers; but this was only true for people whose stress levels increased a little or moderately but not for people whose stress levels increased a lot. In contrast, trait resiliency was shown to buffer against depression regardless of change in stress level. HRV did not mediate these relationships. Conclusion: Graduate students experienced significant mental strain during the COVID-19 pandemic, but physical activity and trait resiliency may be promising protective factors. / Thesis / Master of Science in Kinesiology

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Abstract available in the Annals of Behavioral Medicine.

The number of children living in poverty within the United States is on the rise, which translates to more public school students experiencing those risk factors associated with poverty. Given the severity of the negative effect living in poverty has on the likelihood of academic success, paired with the current climate of accountability in U.S. public schools, it is imperative that educational leaders understand how to create a school culture that fosters resilience in students from poverty. The purpose of this study was to examine principals' lived experiences in childhood poverty impacts the decisions they make. More precisely, it examines how their childhood affects their decision making in regard to creating a culture of academic resilience for students living in low socioeconomic conditions. Additionally, this study identified strategies that are effective, as perceived by school principals who grew up in low socioeconomic conditions, in creating a culture of resilience to improve academic success for students living in low socioeconomic conditions. This study provides valuable information to school leaders who strive to create an environment that fosters educational resilience in children living in poverty. The results are particularly salient to principals, as the information comes directly from the perspective of school principals who grew up in poverty, were educationally resilient, and are now creating a school atmosphere that fosters educational resilience in their students who live in poverty.

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