Dietary Adherence, Self-Efficacy, and Health Behavior Change of WASHOKU-Modified DASH Diet: A Sub-analysis of the DASH-JUMP Study

Atsuko Kawamura; Junko Inagaki; Seiji Umemoto; Katsuko Kajiya; Hiroko Kishi; Makoto Mitarai; Hiroshi Oda; Sei Kobayashi

doi:10.2174/1573402115666190318125006

Dietary Adherence, Self-Efficacy, and Health Behavior Change of WASHOKU-Modified DASH Diet: A Sub-analysis of the DASH-JUMP Study

Curr Hypertens Rev. 2020;16(2):128-137. doi: 10.2174/1573402115666190318125006.

Authors

Atsuko Kawamura¹, Junko Inagaki², Seiji Umemoto³, Katsuko Kajiya⁴, Hiroko Kishi¹, Makoto Mitarai⁵, Hiroshi Oda¹, Sei Kobayashi¹

Affiliations

¹ Department of Molecular Physiology and Medical Bioregulation, Yamaguchi University Graduate School of Medicine, Ube, Japan.
² Faculty of Nursing Science, Yamanashi Prefectural University, Kouhu, Japan.
³ Center for Integrated Medical Research, Hiroshima University Hospital, Hiroshima, Japan.
⁴ Department of Food Science and Biotechnology, Faculty of Agriculture, Kagoshima University, Kagoshima, Japan.
⁵ Central Research Institute, Maruha Nichiro Corporation, Tsukuba, Japan.

Abstract

Background: We previously reported the nutritional characteristics and effects of the DASH-JUMP diet, which is a WASHOKU-modified DASH diet, in Japanese participants with untreated high-normal blood pressure or stage 1 hypertension. The dietary adherence of the DASH diet in Japanese participants has never been evaluated before.

Objective: We aimed to assess the relationships between dietary adherence, self-efficacy, and health behavior change among study participants who received the DASH-JUMP diet by home delivery.

Methods: Participants were treated with the DASH-JUMP diet for 2 months and consumed their usual diets for the next 4 months. We conducted surveys using the stage of behavior change model questionnaire and the modified perceived health competence scale Japanese version questionnaire at baseline and 1, 2, 3, and 6 months to assess dietary adherence.

Results: Forty-three participants (25 men, 18 women; mean age 53.6 ± 8.2 years) returned completed questionnaires, which we analyzed. Health behavior change was motivated by previous behavioral changes and improved biomarkers. The improvement and maintenance of self-efficacy were deeply related to health behavior change and previous self-efficacy. The experience of the DASH-JUMP study for participants included three processes to improve lifestyle habits: Phase 1, reflecting on previous lifestyle habits; Phase 2, learning through new experiences and the acquisition of knowledge; and Phase 3, desiring to maintain their own health.

Conclusion: It indicated that the DASH-JUMP diet significantly increased self-efficacy and promoted health behavior change.

Keywords: DASH diet; DASH-JUMP; WASHOKU; dietary adherence; health behavior change; self-efficacy.

Publication types

Observational Study

MeSH terms

Biomarkers / blood
Blood Pressure
Diet, Healthy*
Dietary Approaches To Stop Hypertension*
Feeding Behavior*
Female
Health Knowledge, Attitudes, Practice*
Health Status
Humans
Hypertension / diagnosis
Hypertension / diet therapy*
Hypertension / physiopathology
Hypertension / psychology
Japan
Male
Middle Aged
Patient Compliance*
Risk Reduction Behavior*
Self Efficacy*
Time Factors
Treatment Outcome
Weight Loss

Substances

Biomarkers