"Mindfulness-based stress reduction and physiological activity during acute stress: A randomized controlled trial": Correction to Nyklíček et al. (2013).

Reports an error in "Mindfulness-based stress reduction and physiological activity during acute stress: A randomized controlled trial" by Ivan Nyklíček, Paula M. C. Mommersteeg, Sylvia Van Beugen, Christian Ramakers and Geert J. Van Boxtel (Health Psychology, 2013[Oct], Vol 32[10], 1110-1113). An incorrect reference was mistakenly provided in the reference list, and the correct reference was omitted. Both the incorrect reference and the correct reference that should have been included are presented in the erratum. (The following abstract of the original article appeared in record [rid]2013-09648-001[/rid].) OBJECTIVE: The aim was to examine the effects of a Mindfulness-Based Stress Reduction (MBSR) intervention on cardiovascular and cortisol activity during acute stress. METHOD: Eighty-eight healthy community-dwelling individuals reporting elevated stress levels were randomly assigned to the MBSR protocol or a waitlist control group. Before and after the intervention period they participated in a laboratory stress protocol consisting of mental arithmetic and speech tasks. Laboratory measurements included continuous cardiovascular parameters (heart period, heart rate variability, and systolic and diastolic blood pressure [SBP and DBP]), and salivary cortisol. RESULTS: Compared to the control group and controlling for age, sex, body mass index, and beta-blockers, the MBSR group showed larger pre- to postintervention decreases in overall SBP (F(1, 58) = 4.99, p = .029, partial η² = .08) and DBP (F(1, 58) = 11.09, p = .002, partial η² = .16). In addition, the MBSR group exhibited smaller SBP and DBP stress-related changes from pre- to postintervention (F(2, 116) = 4.89, p = .012, partial η² = .08; F(2, 116) = 6.07, p = .007, partial η² = .10, respectively). No effects were obtained on other physiological measures. CONCLUSION: MBSR may help reducing blood pressure levels and blood pressure reactivity to stress.