Study protocol
BLIND
To identify workers with stress symptoms in nursing staff, the researchers drew professionals from the work schedules of the sectors, using the The presence of stress symptoms was identified by the Stress Symptoms Scale (SSS), applied within 30 days before the initial session (t0), an instrument that provides a mean called the overall stress level (OSL)The intervention consisted of training the CBKF technique, using the EmWave Pro PlusThe control performed an online puzzle called Jigsaw PuzzlesConsidering the peculiarities of nursing professionals’ work routine, intervention and control were carried out in nine meetings, which took place three times a week, over three weeks, individually and in places close to professionals’ work sector. In the first meeting (t0), baseline HRV measurements were performed and guidance on the dynamics of the next meetings was performed. In the eight subsequent encounters (t1 to t8), CBKF training in the IG and puzzle training in the CG were carried out.The intervention protocol consisted of the following EmWave Pro PlusIn addition to blinding participants, blinding was also considered for data analysis. For this purpose, prior to statistical consultancy, the CG and IG databases were coded in terms of participant allocation. Due to the peculiarity of the activities in the groups, it was not possible to blind the researchers.Data collection instruments were self-administered, being delivered to participants in a brown envelope, collected on a date defined between the researched and the researcher, submitted to double typing of data in Excel spreadsheets. Participants in both groups responded to the research protocol at two moments: pre-intervention, prior to the initial or baseline session (t0), and post-intervention, immediately after the last session (t8) of the approach.To assess the stress outcome, three variables were considered: OSL, occupational stress and HRV. OSL was assessed using the list of physical symptoms, consisting of 13 items related to physiological reactions, and the Psychological Symptoms Scale, consisting of 18 itemsOccupational stress was measured using the Work-Related Stress Scale (WRSS), consisting of 23 items analyzed using a 5-point Likert-type scale, in which each item presents a stressor and a type of reaction to this stressor. The scores vary between 23 and 115 points, and validity showed good reliability, with µ =0.91. The result is obtained by averaging the sum of items, considering values from 1 to 2 to be considered low level of occupational stress, from 2.1 to 2.9 to medium occupational stress, and from 3 to 5 to high occupational stressHRV was transcribed using the EmWave Pro Plus