Characteristics of Weight Loss Trajectories in a Comprehensive Lifestyle Intervention

Obesity
Ryan J MarekPatrick M O'Neil

Abstract

Focusing on average weight loss (WL) from interventions provides useful efficacy data but masks large variability across patients. In this study, parameters of weight loss trajectories were determined that differentiated individuals during a 15-week clinical lifestyle intervention. Patients (n = 595) were in a fee-for-service WL lifestyle program with a partial meal replacement diet and lifestyle change counseling. Parameters used in latent class analyses were percent WL (%WL), weight nadir, number of weekly weight gains, maximum weekly percent weight gain, standard deviation of weekly weight changes, linear slope values, and change in slope. Average %WL was 9.73%. Latent class analyses revealed three groups with considerable overlap in %WL ranges but differing significantly on all trajectory parameters (Ps < 0.001). Group 1 had the most variable and least successful pattern of weight changes. Group 3 had the least variable and most successful pattern of weight changes. Group 2 fell between the others on all parameters. Emphasis on average WL likely obscures considerable variability in individual courses of weight change. Moreover, patients with similar %WL can have different WL trajectories. Identification of behavioral/physio...Continue Reading

References

Oct 2, 2007·Journal of the American Dietetic Association·Marion J FranzNicolas P Pronk
Dec 17, 2014·Obesity Reviews : an Official Journal of the International Association for the Study of Obesity·R L WilliamsR Callister
Oct 2, 2015·Annals of Behavioral Medicine : a Publication of the Society of Behavioral Medicine·Amanda N Szabo-ReedJoseph E Donnelly
Jun 23, 2016·International Journal of Obesity : Journal of the International Association for the Study of Obesity·K FujiokaF L Greenway
Aug 17, 2016·International Journal of Obesity : Journal of the International Association for the Study of Obesity·C PiernasS A Jebb
Sep 3, 2016·Obesity·Candida J RebelloFrank L Greenway

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