Skip to content

Karl-Heinz Renner

University of the Bundeswehr Munich, Neubiberg, Germany.

2 papers in the library · 29 citations · publishing 2024-2025

Papers

Psychological and physiological health outcomes of virtual reality-based mindfulness interventions: A systematic review and evidence mapping of empirical studies.

Digital health January 1, 2024 Alissa Wieczorek, Florian Schrank, Karl-Heinz Renner et al. 19 citations

A systematic review examined virtual-reality-based mindfulness interventions and their effects on psychological and physiological health. Psychological benefits included improved anxiety, mindfulness, emotions, stress, and sleep-related arousal. Physiological effects involved changes in heart rate, heart rate variability, pain, blood pressure, cortisol, and galvanic skin resistance. Most studies were single sessions lasting 5 or 10 minutes, often in nature-based virtual environments. Attention regulation was identified as a primary mechanism. More research has been conducted in the last six years, especially by North American and South Korean authors. The review calls for more rigorous, true-experimental studies and longer interventions to assess long-term effects.

The Effects of an Online Yoga Nidra Meditation on Subjective Well-Being and Diurnal Salivary Cortisol: A Randomised Controlled Trial.

Stress and health : journal of the International Society for the Investigation of Stress June 1, 2025 Esther N Moszeik, Nicolas Rohleder, Karl-Heinz Renner 10 citations

A randomized controlled trial tested two durations of Yoga Nidra meditation (11 minutes and 30 minutes) against an active control (10 minutes of music) and a waitlist control, with 362 participants practicing daily online for two months. The 11-minute Yoga Nidra group showed small but significant improvements in psychological well-being compared to the waitlist, including reduced depression compared to the active control. Regular practice was linked to lower total cortisol and steeper daily cortisol declines. The 30-minute form increased acting with awareness more than the short form and produced a flatter cortisol wake-up reaction. The findings suggest even brief, low-cost interventions can yield health-promoting effects.