Soini Sirpa, Mustajoki Pertti, Eriksson Johan G
University of Helsinki, Department of General Practice and Primary Health Care , PO Box 20, 00014 University of Helsinki.
Ann Med. 2015 Mar;47(2):88-93. doi: 10.3109/07853890.2015.1004358. Epub 2015 Mar 9.
Short-term weight loss is often successful, but the obtained results are difficult to maintain. Therefore, a study focusing on obese people who successfully lost weight, with special emphasis upon methods applied and background factors, is of major importance.
METHODS/SUBJECTS: This study was based upon a web-based questionnaire, which the participants filled in after registration. Altogether 316 people were recruited through articles in newspapers all over Finland, and of them 184 met the inclusion criteria: age 18-60 years, body mass index (BMI) ≥ 30 kg/m(2) before weight loss, a weight loss of at least 10%, and maintaining it for a minimum of 2 years.
A total of 158 participants (100 women and 58 men) were included in the final analyses. The mean age was 44.5 years, average BMI before weight loss 35.9 kg/m(2) and after weight loss 26.1 kg/m(2), average weight loss was 26.5% or 32.4 kg. Compared with the general Finnish population the participants smoked less (P = 0.009), used less alcohol (P ≤ 0.001), and were physically more active (P ≤ 0.001).
People who were successful in long-term weight loss have a much healthier lifestyle than the general Finnish population. Increased physical activity seems to be a major determinant of successful long-term results.
短期体重减轻往往是成功的，但所取得的成果难以维持。因此，针对成功减重的肥胖人群开展一项研究，特别关注所采用的方法和背景因素，具有重要意义。
方法/研究对象：本研究基于一份网络调查问卷，参与者在注册后填写。通过在芬兰各地报纸上刊登文章，共招募了316人，其中184人符合纳入标准：年龄18 - 60岁，减重前体重指数（BMI）≥30 kg/m²，体重减轻至少10%，并维持至少2年。
最终分析纳入了158名参与者（100名女性和58名男性）。平均年龄为44.5岁，减重前平均BMI为35.9 kg/m²，减重后为26.1 kg/m²，平均体重减轻26.5%或32.4 kg。与芬兰普通人群相比，参与者吸烟较少（P = 0.009），饮酒较少（P≤0.001），身体活动更频繁（P≤0.001）。
长期成功减重的人群比芬兰普通人群拥有更健康的生活方式。增加身体活动似乎是长期成功减重的主要决定因素。
