A Boost of Health: Effectiveness of a Personalized Communication Intervention to Increase Daily Fruit and Vegetable Intake
A Boost of Health: Effectiveness of a Personalized Communication Intervention Aimed at Increasing Daily Fruit and Vegetable Portions - A Study Within the PNRR 10 ON Foods Partnership
연구 개요
상태
정황
상세 설명
The present study aims to evaluate the effectiveness of a protocol designed to increase fruit and vegetable consumption, grounded in the Health Action Process Approach (HAPA).
The protocol was delivered via the MyPocketHealth app, developed by the research team, and incorporated different communication strategies. Participants were involved in setting a goal and choosing between a personalized or a standardized goal (5 daily portions), which could be reviewed at any time. Moreover, they received either interactive (HAPA-I: group 1) or non-interactive (HAPA-NI: group 2) daily notifications promoting the target behavior through HAPA constructs for 15 days, while also monitoring their daily fruit and vegetable consumption (self-monitoring). A third group engaged solely in self-monitoring without receiving any communication (no-communication group; No comm). Goal attainment was reinforced through badge awards (rewards).
연구 유형
등록 (실제)
단계
- 해당 없음
연락처 및 위치
연구 장소
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Milano
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Milan, Milano, 이탈리아, 20126
- Adorni Roberta
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참여기준
자격 기준
공부할 수 있는 나이
- 성인
건강한 자원 봉사자를 받아들입니다
설명
Inclusion Criteria:
- Individuals from the general population in good health
- Adequate level of education to understand study procedures and to use a smartphone
- Ownership and regular use of a smartphone
Exclusion Criteria:
- Medical conditions that contraindicate an increased consumption of fruit and vegetables
- Habitual consumption of five (or more) portions of fruit and vegetables per day at baseline
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 방지
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 더블
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: Interactive condition (HAPA-I: group 1)
Participants received two daily notifications. Each notification included a question about a variable from the HAPA model, and participants responded on a 5-point Likert scale. Those who scored low (1-3) received a motivational message tailored to their response. In contrast, participants who scored high (4-5) received rewarding messages. These notifications gave participants feedback on their standings within the HAPA. Moreover, participants received a daily reminder to log the portions of fruit and vegetables in a dedicated self-monitoring section of the app. |
Participants received two daily notifications.
Each notification included a question about a variable from the HAPA model, and participants responded on a 5-point Likert scale.
Those who scored low (1-3) received a motivational message tailored to their response.
In contrast, participants who scored high (4-5) received rewarding messages.
These notifications gave participants feedback on their standings within the HAPA.
Participants received a daily reminder to log the portions of fruit and vegetables in a dedicated self-monitoring section of the app.
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실험적: Non-interactive condition (HAPA-NI: group 2)
Participants received two daily educational notifications about HAPA variables, but they did not interact with the app. The notifications for both the HAPA-I and HAPA-NI groups were identical in structure, word count, and graphic format. The only difference was the level of content customization: it was generic for the HAPA-NI group and tailored to participants' responses for the HAPA-I group. Moreover, participants received a daily reminder to log the portions of fruit and vegetables in a dedicated self-monitoring section of the app. |
Participants received a daily reminder to log the portions of fruit and vegetables in a dedicated self-monitoring section of the app.
Participants received two daily educational notifications about HAPA variables, but they did not interact with the app.
The notifications for both the HAPA-I and HAPA-NI groups were identical in structure, word count, and graphic format.
The only difference was the level of content customization: it was generic for the HAPA-NI group and tailored to participants' responses for the HAPA-I group.
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실험적: Non-communication condition (No-comm: group 3)
Participants did not receive HAPA-based notifications during the trial period.
They received a daily reminder to log the portions of fruit and vegetables in a dedicated self-monitoring section of the app.
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Participants received a daily reminder to log the portions of fruit and vegetables in a dedicated self-monitoring section of the app.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Change in Daily Fruit and Vegetable Intake from Baseline
기간: From Day 1 to Day 15 (end of intervention)
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Participants self-monitored daily fruit and vegetable intake throughout the study period.
Each evening, participants received a reminder and recorded the number of fruit and vegetable portions consumed that day via a dedicated app interface.
At the end of the 15-day intervention, the mean daily intake was calculated for each participant.
This value was then compared with baseline intake (assessed prior to the start of the intervention) to evaluate whether a statistically significant increase in daily fruit and vegetable consumption was observed.
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From Day 1 to Day 15 (end of intervention)
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Change in Perceived Well-Being (WHO-5 Index)
기간: Baseline and Day 15 (end of intervention)
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Perceived well-being is assessed using the WHO-5 Well-Being Index, a validated self-report questionnaire that measures subjective psychological well-being.
The WHO-5 consists of five items rated on a 6-point Likert scale, with higher scores indicating greater well-being.
Scores are collected at baseline and at the end of the 15-day intervention.
The outcome is defined as the change in WHO-5 score from baseline to post-intervention.
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Baseline and Day 15 (end of intervention)
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공동 작업자 및 조사자
스폰서
수사관
- 수석 연구원: Marco D'Addario, PhD, University of Milano Bicocca
- 수석 연구원: Maria Elide Vanutelli, PhD, University of Milano Bicocca
간행물 및 유용한 링크
일반 간행물
- Fjeldsoe B, Neuhaus M, Winkler E, Eakin E. Systematic review of maintenance of behavior change following physical activity and dietary interventions. Health Psychol. 2011 Jan;30(1):99-109. doi: 10.1037/a0021974.
- Aune D, Giovannucci E, Boffetta P, Fadnes LT, Keum N, Norat T, Greenwood DC, Riboli E, Vatten LJ, Tonstad S. Fruit and vegetable intake and the risk of cardiovascular disease, total cancer and all-cause mortality-a systematic review and dose-response meta-analysis of prospective studies. Int J Epidemiol. 2017 Jun 1;46(3):1029-1056. doi: 10.1093/ije/dyw319.
- Schwarzer, R. (2008). Modeling health behavior change: How to predict and modify the adoption and maintenance of health behaviors. Applied Psychology: An International Review, 57(1), 1-29. https://doi.org/10.1111/j.1464-0597.2007.00325.x
- Mujcic R, J Oswald A. Evolution of Well-Being and Happiness After Increases in Consumption of Fruit and Vegetables. Am J Public Health. 2016 Aug;106(8):1504-10. doi: 10.2105/AJPH.2016.303260.
- Kamphuis CB, van Lenthe FJ, Giskes K, Brug J, Mackenbach JP. Perceived environmental determinants of physical activity and fruit and vegetable consumption among high and low socioeconomic groups in the Netherlands. Health Place. 2007 Jun;13(2):493-503. doi: 10.1016/j.healthplace.2006.05.008. Epub 2006 Jul 11.
- D'Addario M, Cappelletti ER, Sarini M, Greco A, Steca P. The TTCYB Study Protocol: A Tailored Print Message Intervention to Improve Cardiovascular Patients' Lifestyles. Int J Environ Res Public Health. 2020 Apr 23;17(8):2919. doi: 10.3390/ijerph17082919.
- Blanchflower, D. G., Oswald, A. J., & Stewart-Brown, S. (2013). Is psychological well-being linked to the consumption of fruit and vegetables? Social Indicators Research, 114(3), 785-801. https://doi.org/10.1007/s11205-012-0173-y
- Adorni R, Zanatta F, Cappelletti ER, Greco A, Steca P, D'Addario M. Effectiveness of a tailored communication intervention to improve physical activity in hypertensive patients: a twelve-month randomized controlled trial. BMC Cardiovasc Disord. 2024 Mar 5;24(1):143. doi: 10.1186/s12872-024-03786-2.
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
기본 완료 (실제)
연구 완료 (실제)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
추가 관련 MeSH 약관
기타 연구 ID 번호
- RM-2024-882
- PE00000003;CUP D93C22000890001 (기타 보조금/기금 번호: Italian Ministry of University and Research funded by the European Union - NextGenerationEU)
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
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