Tammara Jefferson

Southeastern Louisiana University

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A. C. Patel

Hemchandracharya North Gujarat University

Tyler Paopao

Southeastern Louisiana University

Anil K. Kanakadandi

Southeastern Louisiana University

Daniel Hollander

Southeastern Louisiana University

Sruthi Mareedu

Southeastern Louisiana University

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Southeastern Louisiana University

Hemchandracharya North Gujarat University

Kamdhenu University

Anand Agricultural University

Government of Gujarat

University of California, Los Angeles

Tulane University

University of Colorado Boulder

B. Braun (Netherlands)

Texas Tech University

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Comparison Of The Cross-stressor Adaptation Between Exercisers, Athletes, And College Students To Mental Stress

Medicine & Science in Sports & Exercise (2009)

Daniel Hollander A. C. Patel Tammara Jefferson Sruthi Mareedu Anil K. Kanakadandi

Sothmann and colleagues (1996) proposed that training aids the fit individual by affording a blunted cardiovascular response to stress when compared to their less fit counterparts. This phenomenon is know as the cross-stressor adaptation hypothesis. PURPOSE: To examine physiological responses (i.e., cardiac and blood pressure response) to mental stressors during a 10-minute mental arithmetic challenge with noxious auditory feedback testing the cross stressor adaptation hypothesis. METHODS: Cardiovascular responses were measured in a group of exercisers (N=35), college athletes (N=14), and non-exercising, college students (N=20). Measures were taken at baseline, then in 2 minute intervals for the duration of the stressor. Perception of mental effort, stress, and attention were also assessed. Four subjects presented with hypertension and were eliminated from the data analysis. Family history of cardiovascular disease, gender, perceptual measures were analyzed and were not statistically significant. Next, repeated measures ANOVAs were performed to examine the change of baseline Heart Rate (HR), systolic blood pressure (SBP), diastolic blood pressure (DBP), and mean arterial pressure (MAP) from each recording (taken every 2 minutes during the stressor). RESULTS: HR, SBP, and DBP failed to significantly vary based on physical activity classification. Moreover, only the time variable was significant (P <0.001) for all measures except MAP. CONCLUSIONS: Thus, no support was demonstrated for the cross-stressor adaptation hypothesis even though trends toward support were evident. Future studies should employ more sophisticated measures of cardiovascular function to detect changes to physiological stress response.TABLE

Stressor

Mental arithmetic

Repeated measures design

10.1249/01.mss.0000354687.54307.4e

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