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Effects of a yoga intervention on gastrointestinal symptoms and interoceptive processing

Effects of a yoga intervention on gastrointestinal symptoms and interoceptive processing

Miyata Hiromitsu

Waseda University

1-24-1 Toyama, Shinjuku-ku, Tokyo 162-8644, Japan

miyata@waseda.jp

Yamasaki Kaho

Waseda University

1-24-1 Toyama, Shinjuku-ku, Tokyo 162-8644, Japan

+81-3-5286-3722

kyahyo@asagi.waseda.jp

Recruiting

Aug. 06, 2024

Interventional

randomized controlled trial

open(masking not used)

active control

parallel assignment

other

Participants will be undergraduate and graduate students aged 18 to 25 belonging to Waseda University, who have a high tendency towards irritable bowel syndrome (IBS) and have consented to participate in this study of their own free will. A screening survey based on Rome IV will be conducted to measure the tendency of IBS. Individuals who report having experienced abdominal pain in the past three months will be selected as participants.

Individuals with back pain, arthritis, cancer or tumors, heart disease, immune disorders, epilepsy, mental disorders (e.g., schizophrenia, bipolar disorder), eye diseases that may be aggravated by increased intraocular pressure (e.g., glaucoma, retinal detachment, conjunctivitis), or individuals advised against physical activity by a physician will be excluded. Additionally, individuals currently receiving any form of treatment or participating in another intervention study will also be excluded.

Irritable Bowel Syndrome

Participants will undergo a 4-week intervention based on the Kripalu yoga sequence developed for this study. Participants in the yoga group will perform a 30-minute daily yoga program while watching an instructional video throughout the 4-week period. Considering the stages of Kripalu Yoga practice, different sequences will be used for the first two weeks (Part 1) and the last two weeks (Part 2). During the first two weeks, participants will follow a basic Kripalu Yoga sequence. In the last two weeks, they will follow a sequence with a slowed-down approach aimed at calming excessive energy. Participants in the control group will walk indoors for 30 minutes daily throughout the 4-week period.

D043183

D015013

The following outcomes will be measured before and after the intervention and two weeks after the intervention (follow-up) periods.
IBS Severity Index (Shinozaki et al., 2006); Visceral Sensitivity Index (VSI; Saigo et al., 2014); actual heart rate during the heartbeat detection task; heart rate counted by the participants during the heartbeat detection task; confidence in the accuracy of heart rate counting (7-point Likert scale); amount of water consumed during the first and second trials of the water load task; degree of gastrointestinal symptoms before and after the water load (i.e., pain/discomfort, fullness, nausea, and bloating, each rated using a Visual Analogue Scale); Multidimensional Assessment of Interoceptive awareness (MAIA; Shoji et al., 2018)

The following outcomes will be measured before and after the intervention and two weeks after the intervention (follow-up) periods.
Respiratory rate and heart rate variability at the resting state; Five Facet Mindfulness Questionnaire (FFMQ; Sugiura et al., 2012)

+81-3-5272-4652

July. 10, 2024

Yes

We will share anonymized data in an open-source database for scientific research when publishing research findings.

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