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Comparative effectiveness of guided weight loss and physical activity monitoring for weight loss and metabolic risks: A pilot study

View Article: PubMed Central - PubMed

ABSTRACT

Many consumer-based physical activity monitors (PAMs) are available but it is not clear how to use them to most effectively promote weight loss. The purpose of this pilot study was to compare the effectiveness of a personal PAM, a guided weight loss program (GWL), and the combination of these approaches on weight loss and metabolic risk. Participants completed the study in two cohorts: Fall 2010 and Spring 2011. A sample of 72 obese individuals in the Ames, IA area were randomized to one of 3 conditions: 1) (GWL, N = 31), 2) PAM, N = 29, or 3) a combination group (PAM + GWL, N = 29). Weight and metabolic syndrome score (MetS), computed from waist circumference (WC), BMI, blood pressure (BP), and lipids were assessed at baseline and following an 8-week intervention. Weight was also assessed four months later. Two-way (Group × Time) ANOVAs examined intervention effects and maintenance. Effect sizes were used to compare magnitude of improvements among groups. During the intervention, all groups demonstrated significant improvements in weight and MetS (mean weight loss = 4.16 kg, p < 0.001). Mean weight continued to decline modestly during follow-up, with average weight loss of 4.82 kg from baseline (p < 0.01). There were no group differences for weight loss but the PAM + GWL group had significantly larger changes in MetS score (d = 0.06–0.77). The use of PAM resulted in significant improvements in weight and MetS that were maintained across a four-month follow-up. Evidence suggests that the addition of GWL contributed to enhanced metabolic outcomes.

No MeSH data available.


Related in: MedlinePlus

Change in continuous metabolic syndrome score by weight loss tertile. (2010–2011, Ames, IA).Mean change (expressed as SD units) in continuous metabolic syndrome score from baseline to 8 weeks by tertile of weight loss from baseline to 8 weeks.*Significantly different from Tertile 1.
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f0020: Change in continuous metabolic syndrome score by weight loss tertile. (2010–2011, Ames, IA).Mean change (expressed as SD units) in continuous metabolic syndrome score from baseline to 8 weeks by tertile of weight loss from baseline to 8 weeks.*Significantly different from Tertile 1.

Mentions: The final analyses examined the relationship between weight loss and MetS changes during the intervention. Participants in the highest tertile of weight loss (− 7.8 kg ± 1.8) had a significantly greater improvement in MetS score (decrease of 2.16 units in sum of z-scores) than participants in the lowest tertile of weight change (− 1.1 kg ± 1.2, decrease of 0.76 units) (Fig. 4). The overall pattern shows a greater improvement in MetS with increasing weight loss.


Comparative effectiveness of guided weight loss and physical activity monitoring for weight loss and metabolic risks: A pilot study
Change in continuous metabolic syndrome score by weight loss tertile. (2010–2011, Ames, IA).Mean change (expressed as SD units) in continuous metabolic syndrome score from baseline to 8 weeks by tertile of weight loss from baseline to 8 weeks.*Significantly different from Tertile 1.
© Copyright Policy - CC BY-NC-ND
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5385579&req=5

f0020: Change in continuous metabolic syndrome score by weight loss tertile. (2010–2011, Ames, IA).Mean change (expressed as SD units) in continuous metabolic syndrome score from baseline to 8 weeks by tertile of weight loss from baseline to 8 weeks.*Significantly different from Tertile 1.
Mentions: The final analyses examined the relationship between weight loss and MetS changes during the intervention. Participants in the highest tertile of weight loss (− 7.8 kg ± 1.8) had a significantly greater improvement in MetS score (decrease of 2.16 units in sum of z-scores) than participants in the lowest tertile of weight change (− 1.1 kg ± 1.2, decrease of 0.76 units) (Fig. 4). The overall pattern shows a greater improvement in MetS with increasing weight loss.

View Article: PubMed Central - PubMed

ABSTRACT

Many consumer-based physical activity monitors (PAMs) are available but it is not clear how to use them to most effectively promote weight loss. The purpose of this pilot study was to compare the effectiveness of a personal PAM, a guided weight loss program (GWL), and the combination of these approaches on weight loss and metabolic risk. Participants completed the study in two cohorts: Fall 2010 and Spring 2011. A sample of 72 obese individuals in the Ames, IA area were randomized to one of 3 conditions: 1) (GWL, N = 31), 2) PAM, N = 29, or 3) a combination group (PAM + GWL, N = 29). Weight and metabolic syndrome score (MetS), computed from waist circumference (WC), BMI, blood pressure (BP), and lipids were assessed at baseline and following an 8-week intervention. Weight was also assessed four months later. Two-way (Group × Time) ANOVAs examined intervention effects and maintenance. Effect sizes were used to compare magnitude of improvements among groups. During the intervention, all groups demonstrated significant improvements in weight and MetS (mean weight loss = 4.16 kg, p < 0.001). Mean weight continued to decline modestly during follow-up, with average weight loss of 4.82 kg from baseline (p < 0.01). There were no group differences for weight loss but the PAM + GWL group had significantly larger changes in MetS score (d = 0.06–0.77). The use of PAM resulted in significant improvements in weight and MetS that were maintained across a four-month follow-up. Evidence suggests that the addition of GWL contributed to enhanced metabolic outcomes.

No MeSH data available.


Related in: MedlinePlus