Cardiovascular, self-report, and behavioral stress reactivity to the group-based Trier Social Stress Test with pandemic-related protocol adaptations

Research using stress induction protocols such as the Trier Social Stress Test (TSST) and the TSST for groups (TSST-G) during the coronavirus disease (COVID-19) pandemic has been challenging. While institutional review boards have provided guidance on returning to face-to-face research using COVID-19 adaptations (e.g., masking, social distancing), whether these adaptations influence the effectiveness of social-evaluative stress induction remains unknown. We conducted a secondary data analysis from a randomized controlled trial to establish whether using COVID-19 adaptations (i.e., masking, social distancing, and using a single large conference room for the duration of the experiment) to the TSST-G protocol was able to reliably induce stress across cardiovascular, self-report, and behavioral indices of stress. Young adults (N = 53) underwent the TSST-G with COVID-19 adaptations. We measured systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), self-reported, and behavioral responses to the TSST-G, and all variables indicated successful stress induction. Increases in SBP (18 mmHg) and DBP (14 mmHg) were similar in magnitude as those in standard in-person TSST protocols. Increases in HR (9 beats per minute) were smaller in magnitude than standard in-person TSST protocols, but slightly larger than increases documented in remote TSST protocols. The cardiovascular, self-report, and behavioral indices of stress reactivity provide confidence in the effectiveness of TSST-G with COVID-19 adaptations to reliably induce stress. In-person TSST protocols with COVID-19 adaptations represent an alternate option to remote TSST protocols for stress induction researchers to use during times when masking or social distancing are necessary.