Relationship Between Measures of Anxiety and Change in Resting Metabolic Rate

Title

Relationship Between Measures of Anxiety and Change in Resting Metabolic Rate

College

Darden College of Education & Professional Studies

Program

Ph.D. Education - Human Movement Sciences - Applied Kinesiology

Publication Date

3-28-2019

Abstract

PURPOSE: To investigate the relationship between measures of anxiety and outcomes from two resting metabolic rate (RMR) tests. METHODS: A total of 33 subjects (11 men, 22 women; 34.1 ± 11.5 years) completed two RMR tests within one month. Variables from the tests included RMR (kcals), oxygen consumption (VO2 in mL/min) and heart rate (HR in bpm). During the first visit, the State-Trait Inventory for Cognitive and SomaticAnxiety was used to assess state (STICSA-Moment) and trait (STICSA-General) anxiety and the Anxiety Sensitivity Index-3 (ASI-3) to evaluate anxiety sensitivity. STICSA-Moment was administered again during the second visit. RMR Variables and STICSA-Moment were compared between visits and Spearman’s rank correlation coefficients assessed relationships between outcomes. RESULTS: There was a significant difference in STICSA-Moment scores (t = 2.45, p = .020, ΔSTICSA- Moment = - 1.4, 95% CI = -2.7, -.3) and VO2 (t = 3.50, p = .001, ΔVO2 = -9.6 mL/min, 95% CI = -15, -4) between visits but not for HR (t = 0.99, p = .331, ΔHR = -1.1 bpm, 95% CI = -3.1, 1.1) or RMR (t = 1.45, p = .157, ΔRMR = -23 kcals, 95% CI = -56, 9). Significant, moderate correlations were observed between change in STICSA-Moment scores and change in RMR (rho = .482, p = .004) and VO2 (rho = .460, p = .007), as well as a weak relationship with change in HR that trended towards significance (rho = .325, p = .065). Correlations between RMR variables and outcomes from STICSA-General and ASI-3 were insignificant. CONCLUSION: Although the changes were small in magnitude, practitioners and researchers should be aware that RMR and state anxiety may decline after an initial test. Future research should further explore the relationship between state anxiety and RMR results.

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Relationship Between Measures of Anxiety and Change in Resting Metabolic Rate


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