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Comparison of 2-year weight loss trends in behavioral treatments of obesity: diet, exercise, and combination interventions.
J Am Diet Assoc. 1996 Apr; 96(4):342-6.JA

Abstract

OBJECTIVE

The effects of three cognitive-behavioral weight control interventions for adults were compared: diet only, exercise only, and a combination of diet and exercise. This article reports 2-year follow-up data.

DESIGN

The three interventions were compared in a randomized, experimental design.

SUBJECTS

A total of 127 men and women who were at least 14 kg overweight (according to height-weight tables) were recruited from an urban community and assigned randomly to the experimental conditions.

INTERVENTION

The dietary intervention was a low-energy eating plan adjusted to produce a 1 kg/week loss of weight. The exercise component involved training in walking and a home-based program of up to five exercise periods per week. There were 12 weekly instructional sessions, followed by 3 biweekly and 8 monthly meetings. All sessions were led by registered dietitians.

OUTCOME MEASURES

Changes in body weight.

STATISTICAL ANALYSES

Analysis of variance for weight changes and repeated measures analysis of variance for weight change trends.

RESULTS

At 1 year, no significant differences were noted among the three groups. The diet-only group lost 6.8 kg, the exercise-only group lost 2.9 kg, and the combination group lost 8.9 kg (P=.09). During the second year, the diet-only group regained weight--reaching 0.9 kg above baseline; the combination group regained to 2.2 kg below baseline; and the exercise-only group regained slightly to 2.7 kg below baseline (P=.36). Repeated measures analysis of variance showed a group-by-time interaction (P=.001); data for the dieting groups best fit a U-shaped regain curve (P=.001).

APPLICATIONS

The results suggest that dieting is associated with weight loss followed by regain after treatment ends, whereas exercise alone produced smaller weight losses but better maintenance. The large outcome variability and unequal difficulty of the regimens across groups limit the generalizability of the findings.

Authors+Show Affiliations

Department of Pediatrics, Baylor College of Medicine, Houston, TX, 77030, USA.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial
Research Support, U.S. Gov't, P.H.S.

Language

eng

PubMed ID

8598434

Citation

Skender, M L., et al. "Comparison of 2-year Weight Loss Trends in Behavioral Treatments of Obesity: Diet, Exercise, and Combination Interventions." Journal of the American Dietetic Association, vol. 96, no. 4, 1996, pp. 342-6.
Skender ML, Goodrick GK, Del Junco DJ, et al. Comparison of 2-year weight loss trends in behavioral treatments of obesity: diet, exercise, and combination interventions. J Am Diet Assoc. 1996;96(4):342-6.
Skender, M. L., Goodrick, G. K., Del Junco, D. J., Reeves, R. S., Darnell, L., Gotto, A. M., & Foreyt, J. P. (1996). Comparison of 2-year weight loss trends in behavioral treatments of obesity: diet, exercise, and combination interventions. Journal of the American Dietetic Association, 96(4), 342-6.
Skender ML, et al. Comparison of 2-year Weight Loss Trends in Behavioral Treatments of Obesity: Diet, Exercise, and Combination Interventions. J Am Diet Assoc. 1996;96(4):342-6. PubMed PMID: 8598434.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Comparison of 2-year weight loss trends in behavioral treatments of obesity: diet, exercise, and combination interventions. AU - Skender,M L, AU - Goodrick,G K, AU - Del Junco,D J, AU - Reeves,R S, AU - Darnell,L, AU - Gotto,A M, AU - Foreyt,J P, PY - 1996/4/1/pubmed PY - 1996/4/1/medline PY - 1996/4/1/entrez SP - 342 EP - 6 JF - Journal of the American Dietetic Association JO - J Am Diet Assoc VL - 96 IS - 4 N2 - OBJECTIVE: The effects of three cognitive-behavioral weight control interventions for adults were compared: diet only, exercise only, and a combination of diet and exercise. This article reports 2-year follow-up data. DESIGN: The three interventions were compared in a randomized, experimental design. SUBJECTS: A total of 127 men and women who were at least 14 kg overweight (according to height-weight tables) were recruited from an urban community and assigned randomly to the experimental conditions. INTERVENTION: The dietary intervention was a low-energy eating plan adjusted to produce a 1 kg/week loss of weight. The exercise component involved training in walking and a home-based program of up to five exercise periods per week. There were 12 weekly instructional sessions, followed by 3 biweekly and 8 monthly meetings. All sessions were led by registered dietitians. OUTCOME MEASURES: Changes in body weight. STATISTICAL ANALYSES: Analysis of variance for weight changes and repeated measures analysis of variance for weight change trends. RESULTS: At 1 year, no significant differences were noted among the three groups. The diet-only group lost 6.8 kg, the exercise-only group lost 2.9 kg, and the combination group lost 8.9 kg (P=.09). During the second year, the diet-only group regained weight--reaching 0.9 kg above baseline; the combination group regained to 2.2 kg below baseline; and the exercise-only group regained slightly to 2.7 kg below baseline (P=.36). Repeated measures analysis of variance showed a group-by-time interaction (P=.001); data for the dieting groups best fit a U-shaped regain curve (P=.001). APPLICATIONS: The results suggest that dieting is associated with weight loss followed by regain after treatment ends, whereas exercise alone produced smaller weight losses but better maintenance. The large outcome variability and unequal difficulty of the regimens across groups limit the generalizability of the findings. SN - 0002-8223 UR - https://www.unboundmedicine.com/medline/citation/8598434/Comparison_of_2_year_weight_loss_trends_in_behavioral_treatments_of_obesity:_diet_exercise_and_combination_interventions_ DB - PRIME DP - Unbound Medicine ER -