ArticleAmerican journal of human biology : the official journal of the Human Biology Council2024
The influence of perceived stress and motivation on telomere length among NCAA swimmers.
Article in American journal of human biology : the official journal of the Human Biology Council, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionTelomere length (TL) shortening is associated with increased cellular senescence and functional decline with age. Regular physical activity is posited to safeguard against TL shortening, but there is disagreement on how concurrent psychosocial stress may influence this relationship. The current analysis explored whether psychosocial stress is associated with TL differences in highly physically active individuals.
methodsTL was measured from capillary dried blood spots collected from Division-I (D-1) and Division-III (D-3) National Collegiate Athletics Association (NCAA) swimmers (N = 28) and non-athlete students from the same schools (N = 15). All participants completed Cohen's Perceived Stress Scale (PSS) and student-athletes completed an additional questionnaire to assess psychosocial factors associated with their lifestyle; The Student Athletes' Motivation towards Sports and Academics Questionnaire (SAMSAQ). Semi-structured interviews further contextualized how student-athletes internalize their stress.
resultsThere was no significant difference in TL or PSS scores between swimmers and controls. D-1 swimmers reported significantly higher career and student-athlete motivation scores compared to D-3, but non-significantly higher PSS and similar academic motivation scores. Themes from interviews with collegiate swimmers included COVID-19 stress, fear of injury, pressure from academics, expectations to perform, and financial pressures.
conclusionsThese themes may have contributed to higher PSS scores in D-1 swimmers compared to D-3 but did not appear to impact their TL. Given differences in perceived stress, sources of stress, and SAMSAQ scores, further analyses with larger sample sizes are needed to better understand how these factors influence human biology and health while engaged in intense physical activity.
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