Daly Patricia, Pace Thaddeus, Berg Judith, Menon Usha, Szalacha Laura A
University of Arizona College of Nursing, United States.
University of Arizona College of Nursing, United States.
Complement Ther Med. 2016 Oct;28:22-8. doi: 10.1016/j.ctim.2016.07.006. Epub 2016 Aug 1.
While pediatric anti-obesity lifestyle interventions have received considerable attention, few show sustained impact on body mass index (BMI). Using the Information-Motivation-Behavioral Skills Theory as a framework, we examined the effects of a satiety-focused mindful eating intervention (MEI) on BMI, weight and mindful awareness.
Utilizing a two-group, repeated measures design, 37 adolescent females with a BMI >90th percentile, recruited from a public high school in a Latino community in the Southwestern United States, were randomized 2:1, one third to the group receiving a 6-week MEI and two thirds to the comparison group (CG) receiving the usual care (nutrition and exercise information).
During six weekly 90-min after school MEI group sessions, the behavioral skills of slow intentional eating were practiced with foci on satiety cues and triggers to overeat.
Feasibility and acceptability were measured as participant retention (goal ≥55%) and evaluative comments from those in the MEI group, respectively. BMI and mindful awareness were measured on site at baseline, immediately post intervention, and at 4-week follow-up (week 10).
Fifty-seven and 65% of those in the MEI and CG were retained throughout the study, respectively. MEI participants showed significantly lowered BMI compared with CG participants, whose weight increased (p<0.001). At six weeks, the MEI group BMI decreased by 1.1kg/m(2) (BMI continued to decline to 1.4kg/m(2) by week 10); while CG BMI increased by 0.7kg/m(2) (consistent with BMI >90th percentile standard growth projections).
Initial and sustained decline of BMI in the MEI group supports further study of this theory-guided approach, and the value of practicing satiety-focused mindful eating behavioral skills to facilitate health behavior change.
尽管儿科抗肥胖生活方式干预受到了广泛关注,但很少有干预措施能对体重指数(BMI)产生持续影响。我们以信息 - 动机 - 行为技能理论为框架,研究了以饱腹感为重点的正念饮食干预(MEI)对BMI、体重和正念意识的影响。
采用两组重复测量设计,从美国西南部一个拉丁裔社区的公立高中招募了37名BMI大于第90百分位数的青春期女性,按2:1随机分组,三分之一分到接受为期6周MEI的组,三分之二分到接受常规护理(营养和运动信息)的对照组(CG)。
在每周六次、每次90分钟的放学后MEI小组课程中,练习缓慢有意识进食的行为技能,重点关注饱腹感线索和暴饮暴食的触发因素。
分别以参与者留存率(目标≥55%)和MEI组参与者的评价性意见来衡量可行性和可接受性。在基线、干预后立即以及4周随访(第10周)时在现场测量BMI和正念意识。
在整个研究过程中,MEI组和CG组的留存率分别为57%和65%。与体重增加的CG组参与者相比,MEI组参与者的BMI显著降低(p<0.001)。在六周时,MEI组的BMI下降了1.1kg/m²(到第10周BMI继续下降到1.4kg/m²);而CG组的BMI增加了0.7kg/m²(与BMI大于第90百分位数的标准生长预测一致)。
MEI组BMI的初始和持续下降支持对这种理论指导方法的进一步研究,以及练习以饱腹感为重点的正念饮食行为技能对促进健康行为改变的价值。