Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tübingen, Tübingen, Germany,
Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tübingen, Tübingen, Germany.
Psychother Psychosom. 2019;88(3):141-153. doi: 10.1159/000499696. Epub 2019 May 20.
Impulsivity is a risk factor for binge eating disorder, and binge eating (BE) equates to impulsive eating behaviour. Hence, we developed IMPULS, a cognitive behavioural group intervention focusing on impulsive eating.
We randomised 41 patients to the IMPULS group and 39 to the control group. The IMPULS group participated in the IMPULS treatment, while both groups completed weekly self-observations. We compared both groups concerning BE episodes in the past 4 weeks at the end of treatment (primary outcome). As secondary outcomes, we investigated eating pathology, depression, general impulsivity and body mass index (BMI) at the end of treatment and in a 3-month follow-up.
The primary outcome failed, because BE episodes in the past 4 weeks were reduced in both groups at the end of treatment. At follow-up, the IMPULS group showed further improvement, contrary to the control group. The BE days/episodes in the 2 months before were overall reduced in both groups. Eating pathology was reduced in the IMPULS group at the end of treatment and partly in both groups at the follow-up. Depression was only reduced in the IMPULS group. General impulsivity and BMI did not change.
The IMPULS study has a negative primary outcome. However, secondary outcomes indicate that the IMPULS treatment might be promising, as BE, eating pathology and depression were reduced in the IMPULS group. The initially reduced BE in the control group might represent a short-term effect from the self-observations. General impulsivity and BMI might need a longer time or more intensive treatment to change.
冲动是暴食症的一个风险因素，而暴食（BE）等同于冲动进食行为。因此，我们开发了 IMPULS，这是一种针对冲动进食的认知行为小组干预措施。
我们将 41 名患者随机分为 IMPULS 组和对照组。IMPULS 组参加了 IMPULS 治疗，而两组都完成了每周的自我观察。我们在治疗结束时（主要结果）比较了两组在过去 4 周内的 BE 发作情况。作为次要结果，我们在治疗结束时和 3 个月随访时调查了饮食病理学、抑郁、一般冲动和体重指数（BMI）。
主要结果失败，因为在治疗结束时，两组在过去 4 周内的 BE 发作均减少。在随访时，IMPULS 组表现出进一步的改善，而对照组则相反。在 2 个月前的 BE 天数/发作中，两组总体均减少。在治疗结束时，IMPULS 组的饮食病理学减少，而两组部分减少。在治疗结束时，抑郁仅在 IMPULS 组中减少。一般冲动和 BMI 没有变化。
IMPULS 研究的主要结果为阴性。然而，次要结果表明，IMPULS 治疗可能是有希望的，因为在 IMPULS 组中，BE、饮食病理学和抑郁都有所减少。对照组中最初减少的 BE 可能代表自我观察的短期效应。一般冲动和 BMI 可能需要更长时间或更密集的治疗才能改变。
