The Effect of Cold-Water Hydrotherapy According to Sebastian Kneipp for Immune Stimulation: A Nonrandomized, Controlled, Explorative, Mixed-Methods Clinical Study.

Highlights Home-based hydrotherapy leads to fewer missed kindergarten-days in total. In the application group, more fever days could be registered. Hydrotherapy, according to the hormesis principle by Sebastian Kneipp, aims to reduce infections of the lower respiratory tract. Parents participation motivated by increase in applicable health knowledge for their children. Objectives: This study investigates the effect of cold-water hydrotherapy stimulation according to the hormesis principle by Sebastian Kneipp on the number of missing kindergarten-days, fever days, and respiratory tract infections in children aged 3-6 years. Study design: A nonrandomized, controlled, explorative, mixed-methods clinical study. Intervention: The hydrotherapeutic intervention treated children aged 3-6 years with Kneipp arm affusions over 6 weeks. The control group received no intervention. Number of missed kindergarten-days, fever days, and respiratory tract infections were assessed by means of a digital diary. Through a self-developed structured questionnaire, sociodemographic data of both groups were compared and reason for participation in the study was recorded and qualitatively evaluated. Results: Twenty children participants and their parents in the intervention group and 18 in the control group were evaluated. The intervention was conducted at home by the parents. Statistical analysis revealed no significant differences between the groups but still showed intermediate effect sizes (indicating an underpowered study). These effect sizes point to a potentially lower proportion of children in the application group versus the control group with missed kindergarten-days in total (d = 0.67), days missed due to fever (d = 0.29), and infections of the lower respiratory tract (d = 0.60). In a future study, these parameters will thus serve as promising factors for evaluation. Parent's stated reasons for participation interest were to improve health, increase their own health knowledge, and because of their interest in alternative therapies and to support research. Conclusions: Cold-water hydrotherapy stimulation, according to the hormesis principle by Sebastian Kneipp, did reduce the number of days absent in kindergarten in total in the intervention group and lower respiratory tract infections occurred less frequently. Parent' participation interest demonstrated a desire to increase health literacy and implement this with their own children. Due to the small sample size, the results should be interpreted cautiously. Clinical Trial Registration Number: German Register of Clinical Trials (DRKS): ID 00017562.

The effect of Kneipp treatment hydrotherapy on secretory IgA in young children: A controlled, non-randomized clinical pilot study.

OBJECTIVES: This pilot study analyses the effect and feasibility of hydrotherapeutic Kneipp arm affusions on secretory immunoglobulin A (sIgA) and classic cold symptoms in children 3-6 years of age. STUDY DESIGN: A controlled, non-randomized, clinical pilot study was undertaken. INTERVENTION: This descriptive hydrotherapeutic intervention treated children aged 3-6 with Kneipp arm affusions over four weeks. The control group received no intervention. At baseline and after the intervention, secretory IgA was measured, cold symptoms were assessed by means of the Common Cold Questionnaire (CCQ), and a semi-structured follow-up qualitative interview of the parents in the intervention group was conducted on acceptance and susceptibility to infection of the respiratory tract. RESULTS: Fifteen participants were included in the intervention group and 15 were in the control group. The Kneipp arm affusions intervention was conducted at home and well-accepted by the children. No differences developed between the groups regarding sIgA. Comparing the symptoms by means of CCQ did not show symptoms of respiratory tract infections. In the intervention group, rhinitis occurred less frequently (26.7 % vs. 66.7 %, p = 0.057). In the qualitative analysis, 9/13 parents described an improvement in susceptibility to infections of the respiratory tract. CONCLUSION: Due to the pilot character of this study, home hydrotherapy (Kneipp arm affusions) in healthy children is feasible but did not influence sIgA levels. The influence on infections of the respiratory tract after the intervention phase should be interpreted carefully. In qualitative interviews, parents described less susceptibility to infections of the respiratory tract by their children.