Department of Food Science and Human Nutrition, 228928Iowa State University, Ames, IA, USA.
Department of Kinesiology, 1177Iowa State University, Ames, IA, USA.
Am J Health Promot. 2022 Nov;36(8):1346-1349. doi: 10.1177/08901171221108274. Epub 2022 Jun 15.
Compare computer-based virtual reality (CBVR) and voice-over PowerPoint (PP) grocery store tours (GST) on adult nutrition literacy (NL) and healthful food purchasing self-efficacy (HFPSE).
Participants (n = 68) recruited from University worksite wellness program and randomly assigned to CBVR or PP (CBVR = 35; PP = 33).
Four-week culinary/nutrition education program. Initial three weeks provided identical education for both groups. Week four implemented GST intervention using CBVR or PP.
NL and HFPSE surveys before, after, and three-months post from the start of program.
Intent-to-treat (ITT) analysis with RMANOVA (95% confidence intervals [CI] and effect sizes) to examine change in NL and HFPSE between CBVR and PP groups over 4-week intervention and 3-month retention period.
43 of 68 participants [CBVR (n = 19) and PP (n = 24)] were included in analyses. Both groups significantly improved HFPSE over time (P<.001, CBVR = 46.23% PP = 33.34%), but there were no differences between groups ( = .21) or group by time interaction ( = .31). NL did not change for either group ( = .83, CBVR = 1.11%; PP = .12%) nor were there differences between groups ( = .07).
CBVR and PP GST significantly improved and maintained higher HFPSE scores.
比较基于计算机的虚拟现实 (CBVR) 和语音旁白的幻灯片 (PP) 食品杂货店之旅 (GST) 对成人营养素养 (NL) 和健康食品购买自我效能 (HFPSE) 的影响。
参与者 (n = 68) 从大学工作场所健康计划中招募，并随机分配到 CBVR 或 PP 组 (CBVR = 35; PP = 33)。
为期四周的烹饪/营养教育计划。前三周为两组提供相同的教育。第四周使用 CBVR 或 PP 实施 GST 干预。
NL 和 HFPSE 调查在项目开始前、后和三个月后进行。
意向治疗 (ITT) 分析采用 RMANOVA（95%置信区间 [CI] 和效应大小），以检查 CBVR 和 PP 组在 4 周干预和 3 个月保留期内 NL 和 HFPSE 的变化。
68 名参与者中的 43 名 [CBVR (n = 19) 和 PP (n = 24)] 被纳入分析。两组在时间上均显著提高了 HFPSE（P<.001，CBVR = 46.23%，PP = 33.34%），但两组之间没有差异（ =.21）或组间时间交互作用（ =.31）。NL 对两组均无变化（ =.83，CBVR = 1.11%；PP =.12%），两组之间也无差异（ =.07）。
CBVR 和 PP GST 显著提高并维持了更高的 HFPSE 评分。
