PDF(Pubmed)
Abstract：
UNASSIGNED: Previous studies investigating the effectiveness of conjugated linoleic acid (CLA) supplementation in body weight reduction provided unequivocal results. We hypothesized that psychological factors such as self-efficacy, locus of control or dispositional optimism can affect the success of the intervention. Therefore, this study aimed to determine the psychological factors that modulate the effectiveness of CLA supplementation in overweight or obese women and affect the ability to successfully complete the study.
UNASSIGNED: In total, 74 subjects were recruited into this three-month randomized trial and divided into intervention and control groups receiving, respectively, capsules containing 3 g 80% CLA per day and capsules containing 3 g of sunflower oil. The following psychological tests were performed before the intervention: Multidimensional Health Locus of Control scale, Acceptance of Illness Scale, Satisfaction with Life Scale (SWLS), General Self Efficacy Scale (GSES), Health Behavior Inventory scale and Life Orientation Test (LOT-R).
UNASSIGNED: A total of 60 women completed the study and the subjects who dropped out obtained higher scores in the GSES (p = 0.0490) and the LOT-R (p = 0.0087) tests than subjects who completed the trial. Besides, multivariate linear regression demonstrated that the SWLS test (p = 0.0345) results were independent predictors of body weight changes.
UNASSIGNED: In conclusion, psychological factors like self-efficacy and optimism may be associated with a higher risk of withdrawal from the study, while satisfaction with life may have an impact on the effectiveness of body weight reduction.Clinical trial registration: [https://drks.de/search/en], identifier [DRKS00010462].
UNASSIGNED: In total, 74 subjects were recruited into this three-month randomized trial and divided into intervention and control groups receiving, respectively, capsules containing 3 g 80% CLA per day and capsules containing 3 g of sunflower oil. The following psychological tests were performed before the intervention: Multidimensional Health Locus of Control scale, Acceptance of Illness Scale, Satisfaction with Life Scale (SWLS), General Self Efficacy Scale (GSES), Health Behavior Inventory scale and Life Orientation Test (LOT-R).
UNASSIGNED: A total of 60 women completed the study and the subjects who dropped out obtained higher scores in the GSES (p = 0.0490) and the LOT-R (p = 0.0087) tests than subjects who completed the trial. Besides, multivariate linear regression demonstrated that the SWLS test (p = 0.0345) results were independent predictors of body weight changes.
UNASSIGNED: In conclusion, psychological factors like self-efficacy and optimism may be associated with a higher risk of withdrawal from the study, while satisfaction with life may have an impact on the effectiveness of body weight reduction.Clinical trial registration: [https://drks.de/search/en], identifier [DRKS00010462].
摘要：
■先前研究了补充共轭亚油酸（CLA）在减轻体重方面的有效性，提供了明确的结果。我们假设心理因素，如自我效能感，控制源或情绪乐观会影响干预的成功。因此,本研究旨在确定调节超重或肥胖女性补充CLA效果的心理因素,并影响成功完成研究的能力.
■总共，这项为期三个月的随机试验招募了74名受试者，分为干预组和对照组，分别,每天含有3克80％CLA的胶囊和含有3克葵花籽油的胶囊。干预前进行了以下心理测试：多维健康控制源量表，接受疾病量表，生活满意度量表(SWLS)，一般自我效能感量表(GSES),健康行为量表和生活取向测试(LOT-R)。
共有60名女性完成了这项研究，退学的受试者在GSES（p=0.0490）和LOT-R（p=0.0087）测试中获得了比完成试验的受试者更高的分数。此外,多元线性回归表明，SWLS检验（p=0.0345）结果是体重变化的独立预测因子。
■总而言之，自我效能感和乐观等心理因素可能与退出研究的风险较高有关，而对生活的满意度可能会影响减肥的有效性。临床试验注册：[https://drks。de/search/en],标识符[DRKS00010462]。
■总共，这项为期三个月的随机试验招募了74名受试者，分为干预组和对照组，分别,每天含有3克80％CLA的胶囊和含有3克葵花籽油的胶囊。干预前进行了以下心理测试：多维健康控制源量表，接受疾病量表，生活满意度量表(SWLS)，一般自我效能感量表(GSES),健康行为量表和生活取向测试(LOT-R)。
共有60名女性完成了这项研究，退学的受试者在GSES（p=0.0490）和LOT-R（p=0.0087）测试中获得了比完成试验的受试者更高的分数。此外,多元线性回归表明，SWLS检验（p=0.0345）结果是体重变化的独立预测因子。
■总而言之，自我效能感和乐观等心理因素可能与退出研究的风险较高有关，而对生活的满意度可能会影响减肥的有效性。临床试验注册：[https://drks。de/search/en],标识符[DRKS00010462]。
