Weight Loss Maintenance for 2 Years after a 6-Month Randomised Controlled Trial Comparing Education-Only and Group-Based Support in Japanese Adults

Nakata, Yoshio; Okada, Masafumi; Hashimoto, Koichi; Harada, Yoshinori; Sone, Hirohito; Tanaka, Kiyoji

doi:10.1159/000369913

Cited by 17 publications

(21 citation statements)

References 34 publications

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“…WLM accumulated the most steps per day and spent the most time stepping, followed by NC, and then OC, suggesting that achieving a high number of steps per day may play an important role in the prevention of weight gain and weight regain after weight loss. Our results are consistent with those of Nakata et al (35), who found that individuals in the highest quartile of weight loss 2 years after a 6-month intervention significantly increased their step count (by 2,607 steps/d) when compared with the lowest quartile of weight loss. In addition, WLM and NC spent 1.2 times the minutes per day standing that OC spent, suggesting that increasing time spent standing may help individuals to maintain a normal body weight.…”

Section: Discussionsupporting

confidence: 93%

Objectively Measured Physical Activity and Sedentary Behavior in Successful Weight Loss Maintainers

Ostendorf

Lyden²,

Pan

et al. 2017

Obesity

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Objective To compare patterns of objectively measured moderate-to-vigorous physical activity (MVPA, ≥3.00 METs), light-intensity PA (LPA, 1.50–2.99 METs), and sedentary behavior (SB, <1.50 METs) in successful weight loss maintainers (WLM), normal weight controls (NC), and controls with overweight/obesity (OC). Methods Participants (18–65 years) were recruited in three groups: WLM (maintaining ≥13.6 kg weight loss for ≥1 year, n=30), NC (BMI matched to current BMI of WLM, n=33), and OC (BMI matched to pre-weight loss BMI of WLM, n=27) and wore the activPAL™ for one week. Results Compared to OC and NC, WLM spent more awake time in total MVPA (WLM: 9.6±3.9%, NC: 7.1±2.1%, OC 5.9±2.0%; p<0.01) and more time in sustained (≥10 minute) bouts of MVPA (WLM 39±33, NC 17±14, OC 9±11 minutes/day; p<0.01). Compared to OC, WLM and NC spent more awake time in LPA (WLM 29.6±7.9%, NC 29.1±8.3%, OC 24.8±6.7%; p=0.04) and less awake time sedentary (WLM 60.8±9.3%, NC 63.8±9.5%, OC 69.3±7.5%; p<0.01). Conclusion Results provide additional data supporting the important role of MVPA in weight loss maintenance, and suggest notable differences in LPA and SB between normal weight individuals and those with overweight/obesity. Increasing LPA and/or decreasing SB may be additional potential targets for weight management interventions.

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Section: Discussionsupporting

confidence: 93%

Objectively Measured Physical Activity and Sedentary Behavior in Successful Weight Loss Maintainers

Ostendorf

Lyden²,

Pan

et al. 2017

Obesity

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“…That program involved a more intensive intervention that was 3 months longer than our weight reduction program. Although our follow‐up duration was shorter at only 1 year, our simple and shorter program was able to produce similar weight reduction effects as those reported by Nakata et al Moreover, our worksite‐based program was designed to be more practical and economical as it was conducted during working hours.…”

Section: Discussionsupporting

confidence: 65%

“…Only one study has previously examined weight maintenance in Japanese subjects after a weight reduction program . Nakata et al compared the 2‐year weight maintenance outcomes after a 6‐month hospital‐based randomized controlled trial between Japanese adults who received an education‐only intervention and those who received group‐based support .…”

Section: Discussionmentioning

confidence: 99%

“…Effective and simple weight reduction programs are required to facilitate both short‐term weight reduction and long‐term weight maintenance. Although several programs have reported successful short‐term weight reduction, long‐term weight management remains a challenging issue in the treatment of obesity . Furthermore, few studies have evaluated the long‐term maintenance effects of weight reduction programs among individuals with MetS in an Asian population.…”

Section: Introductionmentioning

confidence: 99%

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One-year weight loss maintenance outcomes following a worksite-based weight reduction program among Japanese men with cardiovascular risk factors

Tsukinoki

Okamura

Okuda

et al. 2019

Journal of Occupational Health

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Objectives Worksite‐based programs present a simple and effective approach to facilitate weight reduction in employees. Despite the importance of 1‐year weight loss maintenance, studies have generally focused on the short‐term effects of weight reduction programs. In addition, little is known about the long‐term weight maintenance outcomes in Asian populations. We examined the long‐term maintenance effects of a worksite‐based weight reduction program among Japanese men with cardiovascular risk factors. Methods The study sample comprised 58 overweight men with cardiovascular risk factors who had voluntarily participated in a randomized crossover trial involving a 3‐month weight reduction program. Participants were followed up for 1 year after the trial concluded, and both groups were merged for the analysis. We compared the changes in body weight before the post‐trial follow‐up and after 12 months to examine the long‐term maintenance effects of the program. Changes in other cardiovascular risk factors (eg, waist circumference, blood pressure, lipid measures, and diabetes‐related measures) were also examined. Results Both groups of study participants achieved weight loss during the weight reduction program. Total 53 participants (91.4%) completed the 12‐month post‐trial follow‐up. There were no significant changes in mean body weight (mean: −0.11, 95% confidence interval: −0.7‐0.49 kg) and other cardiovascular risk factors between the beginning and end of the follow‐up period. Conclusions This study showed that the worksite‐based weight reduction program not only enabled short‐term weight loss, but that the participants were able to successfully maintain their weight for 1 year after the program without any supplementary interventions.

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“…In our previous randomized controlled trial (RCT) [7,8], we tested the effects of providing educational materials such as textbooks and diaries and group-based support with a 2-h single motivational lecture for the control group. Weight loss at 6 months in the control group, educational group, and group-based support group was 2.9, 4.7, and 7.7 kg, respectively.…”

Section: Introductionmentioning

confidence: 99%

A Single Motivational Lecture Can Promote Modest Weight Loss: A Randomized Controlled Trial

et al. 2020

Self Cite

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Background: Obesity is a public health problem worldwide. To widely disseminate weightloss interventions across the target population, a cost-effective approach is needed. Objective: We aimed to test whether a single motivational lecture could promote weight loss. Methods: Our study was a 3-month randomized controlled trial, and we recruited participants via local newspaper advertisements in 3 cities in Ibaraki Prefecture, Japan, and randomly assigned them to a control group (no intervention) and an intervention group, who attended a single motivational lecture lasting approximately 2 h. No other lectures or textbooks were provided. The eligibility criteria included an age of 40-64 years, a body mass index (BMI) of 25-40 kg/ m 2 , and the presence of at least 1 component of metabolic syndrome. The primary outcome was body weight change at 3 months. Results: We enrolled 145 eligible participants with a mean age of 53.8 ± 7.1 years and a BMI of 28.5 ± 3.1 kg/m 2 . The 3-month body weight change in the control and intervention groups was -0.65 kg (95% confidence interval [CI] -1.09 to -0.20) and -2.48 kg (95% CI -3.01 to -1.95), respectively. The between-group difference was 1.83 kg (95% CI 1.15-2.51). Conclusions: The significant difference suggested that a single motivational lecture is an effective option to promote modest weight loss in the short term. motivational lecture was given by an experienced researcher. Standardization of the lecture would be needed to disseminate the information to the public. Finally, we calculated the sample size based on the effect size from our previous RCT [7] and not based on the minimally clinically significant difference between groups. The default difference of 1.5 kg was equivalent to about 2% of baseline weight. Therefore, a single lecture might not be adequate to acquire clinically significant (3%-5%) weight loss.In conclusion, our 3-month RCT tested whether a single motivational lecture could promote weight loss for overweight Japanese adults. Our results suggest that a single lecture can be a cost-effective option to promote modest weight loss in the short term.

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Weight Loss Maintenance for 2 Years after a 6-Month Randomised Controlled Trial Comparing Education-Only and Group-Based Support in Japanese Adults

Cited by 17 publications

References 34 publications

Objectively Measured Physical Activity and Sedentary Behavior in Successful Weight Loss Maintainers

Objectively Measured Physical Activity and Sedentary Behavior in Successful Weight Loss Maintainers

One-year weight loss maintenance outcomes following a worksite-based weight reduction program among Japanese men with cardiovascular risk factors

A Single Motivational Lecture Can Promote Modest Weight Loss: A Randomized Controlled Trial

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