International Cross-Sectional Study on the Effectiveness of Okada Purifying Therapy, a Biofield Therapy, for the Relief of Various Symptoms.

The short version

This study evaluated the effectiveness and safety of Okada Purifying Therapy (OPT), a biofield therapy, for symptom relief across diverse ethnicities and cultures. The research is significant as it addresses the unclear scientific understanding of biofield therapies and their potential benefits in improving physical and psychological well-being. The findings indicate that a majority of participants reported symptom improvement, particularly in Spanish/Portuguese speaking countries, while confirming the therapy's safety with low exacerbation rates. The study employed a cross-sectional design, involving 11,303 participants aged 16 and older from 14 countries, with no specific exclusion criteria. Participants received a single session of OPT, which lasted 30 minutes or longer, administered by certified practitioners. Outcomes were measured using self-reported questionnaires, including a demographic questionnaire, a 5-point Likert-type scale for symptom severity, and the MQL-10 questionnaire for quality of life assessment, all conducted before and after the OPT session. Results showed that 77.5% of participants reported overall symptom improvement (p < 0.0083), with the highest improvement rates observed in Chile/Peru (95.0%) and the lowest in Japan (72.3%). Secondary outcomes indicated that 75.6% reported improvement in physical pain, 78.4% in anxiety/depression, and 73.8% in dizziness/palpitation, all statistically significant (p < 0.0083). Non-significant findings included gender differences in symptom improvement (males 66.6% vs. females 78.3%, p = 0.051) and no significant age impact (p = 0.40). Adverse events were minimal, with 228 participants experiencing symptom exacerbation, none requiring emergency treatment. The authors suggest OPT may have a role as a noninvasive approach, particularly in culturally diverse settings. The authors note that cultural background appears to influence outcomes. Key limitations include the use of convenience sampling, potential biases in self-reported data, and the absence of a control group. Future research should aim to validate these findings with more rigorous methodologies and explore the underlying mechanisms of OPT's effectiveness.

Key findings

• 77.5% of participants reported overall symptom improvement.
• 95.0% improvement in Chile/Peru compared to 72.3% in Japan.
• 75.6% reported physical pain improvement, 78.4% for anxiety.