Research question: The study investigates possible effects of the lifestyle product "Qi-Shield" on a subjective and (neuro-)physiological level. Thereby, effects on well-being, stress perception and the sleep quality as well as influencing factors like personality and beliefs are of particular interest. Sample and Design: In the study 90 test persons are to be tested in a double-blind pre-post between-subject design with three groups (real device (A) - sham device without effectiveness (also called placebo, B) - no device (C)). Measurement methods: Established questionnaires and scales as well as (neuro-)physiological methods comprising electroencephalography (EEG), electrocardiogram (ECG) and skin conductance level measure (electrodermal activity, EDA) during a 20 mins resting state measure with alternating eyes open and closed are used. Statistical evaluation: Group comparisons (A, B, C) in the difference between the measurement points (post - pre) on a subjective and (neuro-)physiological level.
Age range
18 Years – 50 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Adapted Pittsburgh Sleep Quality Index (PSQI)
Timeframe: Change from Baseline Measure at the 1st day at 7 days
WHO-5
Timeframe: Change from Baseline Measure at the 1st day at 7 days
State Trait Anxiety Inventory
Timeframe: Change from Baseline Measure at the 1st day at 7 days
Positive and Negative Affect Schedule , PANAS
Timeframe: Change from Baseline Measure at the 1st day at 7 days
Adapted Perceived Stress Scale
Timeframe: Change from Baseline Measure at the 1st day at 7 days
Brief Resilience Scale
Timeframe: Change from Baseline Measure at the 1st day at 7 days
EEG Alpha band power
Timeframe: Change from Baseline Measure at the 1st day at 7 days
Katharina Lingelbach, Master
EEG Alpha band functional connectivity
Timeframe: Change from Baseline Measure at the 1st day at 7 days
EEG Beta band power
Timeframe: Change from Baseline Measure at the 1st day at 7 days
EEG Beta band functional connectivity
Timeframe: Change from Baseline Measure at the 1st day at 7 days
EEG: Frontal alpha band asymmetry (right side activity)
Timeframe: Change from Baseline Measure at the 1st day at 7 days
EEG: Frontal theta/beta band ratio
Timeframe: Change from Baseline Measure at the 1st day at 7 days
EDA: number of individual phasic responses
Timeframe: Change from Baseline Measure at the 1st day at 7 days
EDA: number of summed amplitude of phasic responses
Timeframe: Change from Baseline Measure at the 1st day at 7 days
ECG: Low frequency response in the heart rate variability
Timeframe: Change from Baseline Measure at the 1st day at 7 days
ECG: High frequency response in the heart rate variability
Timeframe: Change from Baseline Measure at the 1st day at 7 days
ECG: Average heart rate
Timeframe: Change from Baseline Measure at the 1st day at 7 days
ECG: Standard deviation of normal to normal intervals (SDNN)
Timeframe: Change from Baseline Measure at the 1st day at 7 days
Satisfaction with Life Scale
Timeframe: Change from Baseline Measure at the 1st day at 7 days