Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
COPSOQ personal burnout after the intervention |
Personal burnout was assessed with the adapted German long version of the Copenhagen Psychosocial Questionnaire (COPSOQ) at T1. Six questions were answered on an ordinal scale, transformed to values ranging between 0=minimum value and 100=maximum value (higher values indicate a more severe burnout symptomatology) and averaged to obtain a scale score (0-100). |
After the 4-week intervention (T1) |
|
Secondary |
Change in the COPSOQ scale personal burnout between baseline (T0) and 4-week follow-up (T2) |
Personal burnout was assessed with the adapted German long version of the Copenhagen Psychosocial Questionnaire (COPSOQ) at T0 and T2. Six questions were answered on an ordinal scale, transformed to values ranging between 0=minimum value and 100=maximum value (higher values indicate a more severe burnout symptomatology) and averaged to obtain a scale score (0-100). |
Baseline (T0) and 4-week follow-up (T2) |
|
Secondary |
Change in the COPSOQ scale subjective general health between baseline (T0), after the 4-week intervention (T1), and 4-week follow-up (T2) |
The subjective general health was assessed with the adapted German long version of the Copenhagen Psychosocial Questionnaire (COPSOQ, originally derived from the EQ-5D) at T0, T1, and T2 (single question). The question was transformed to a scale ranging from 0=minimum value to 100=maximum value (lower values indicate a worse general health). |
Baseline (T0), after the 4-week intervention (T1), and 4-week follow-up (T2) |
|
Secondary |
Change in the COPSOQ scale work-privacy conflict between baseline (T0), after the 4-week intervention (T1), and 4-week follow-up (T2) |
Work-privacy conflict was assessed with the adapted German long version of the Copenhagen Psychosocial Questionnaire (COPSOQ) at T0 and T2. Five questions were answered on an ordinal scale, transformed to values ranging between 0=minimum value and 100=maximum value (higher values indicate a worse conflict) and averaged to obtain a scale score (0-100). |
Baseline (T0), after the 4-week intervention (T1), and 4-week follow-up (T2) |
|
Secondary |
Change in the COPSOQ scale behavioral stress symptoms between baseline (T0), after the 4-week intervention (T1), and 4-week follow-up (T2) |
Behavioral stress symptoms were assessed with the adapted German long version of the Copenhagen Psychosocial Questionnaire (COPSOQ) at T0 and T2. Eight questions were answered on an ordinal scale, transformed to values ranging between 0=minimum value and 100=maximum value (higher values indicate more severe stress symptoms) and averaged to obtain a scale score (0-100). |
Baseline (T0), after the 4-week intervention (T1), and 4-week follow-up (T2) |
|
Secondary |
Change in the COPSOQ scale cognitive stress symptoms between baseline (T0), after the 4-week intervention (T1), and 4-week follow-up (T2) |
Cognitive stress symptoms were assessed with the adapted German long version of the Copenhagen Psychosocial Questionnaire (COPSOQ) at T0 and T2. Four questions were answered on an ordinal scale, transformed to values ranging between 0=minimum value and 100=maximum value (higher values indicate more severe stress symptoms) and averaged to obtain a scale score (0-100). |
Baseline (T0), after the 4-week intervention (T1), and 4-week follow-up (T2) |
|
Secondary |
Change in self-reported sleep quality between baseline (T0), after the 4-week intervention (T1), and 4-week follow-up (T2) |
Self-reported sleep quality, latency, and sleep duration were assessed with the Pittsburgh Sleep Quality Index (PSQI) at T0, T1, and T2. Items were averaged to obtain values between 0 and 3 (higher values indicate a poorer sleep). |
Baseline (T0), after the 4-week intervention (T1), and 4-week follow-up (T2) |
|
Secondary |
HRV analysis: Change in SDNN between baseline (T0) and after the 4-week intervention (T1) |
Standard deviation of normal to normal (NN) intervals (ms). Recorded with the software InnerBalanceTM Trainer (HeartMath Deutschland GmbH, Germany) and analyzed with the software HRV-Scanner (BioSign GmbH, Germany). |
Baseline (T0) and after the 4-week intervention (T1) |
|
Secondary |
HRV analysis: Change in RMSSD between baseline (T0) and after the 4-week intervention (T1) |
Baseline (T0) and after the 4-week intervention (T1) |
Root mean square of successive differences (ms). Recorded with the software InnerBalanceTM Trainer (HeartMath Deutschland GmbH, Germany) and analyzed with the software HRV-Scanner (BioSign GmbH, Germany). |
|
Secondary |
HRV analysis: Change in pNN50 between baseline (T0) and after the 4-week intervention (T1) |
Percentage of successive NN intervals that differ from each other by more than 50 ms (%). Recorded with the software InnerBalanceTM Trainer (HeartMath Deutschland GmbH, Germany) and analyzed with the software HRV-Scanner (BioSign GmbH, Germany). |
Baseline (T0) and after the 4-week intervention (T1) |
|
Secondary |
HRV analysis: Change in Baevsky's stress index between baseline (T0) and after the 4-week intervention (T1) |
Baevsky's stress index is computed from the main characteristics of the inter-beat intervals histogram (mode value, mode amplitude, and variation range). Recorded with the software InnerBalanceTM Trainer (HeartMath Deutschland GmbH, Germany) and analyzed with the software HRV-Scanner (BioSign GmbH, Germany). |
Baseline (T0) and after the 4-week intervention (T1) |
|
Secondary |
HRV analysis: Change in the degree of rhythmization between baseline (T0) and after the 4-week intervention (T1) |
A measure that quantifies the respiratory sinus arrhythmia. Recorded with the software InnerBalanceTM Trainer (HeartMath Deutschland GmbH, Germany) and analyzed with the software HRV-Scanner (BioSign GmbH, Germany). |
Baseline (T0) and after the 4-week intervention (T1) |
|
Secondary |
Training evaluation |
Participants rated the training success, integrability and the responding to questions and needs on a 5-point scale (1=positive, 5=negative). |
After the 4-week intervention (T1) |
|