scholarly journals A randomized controlled trial of an innovative, user‐friendly, interactive smartphone app‐based lifestyle intervention for weight loss

2021 ◽  
Author(s):  
Cherie Lisa Vaz ◽  
Nicholas Carnes ◽  
Bobak Pousti ◽  
Huaqing Zhao ◽  
Kevin Jon Williams
Keyword(s):  
Weight Loss ◽  
Randomized Controlled Trial ◽  
Lifestyle Intervention ◽  
Controlled Trial ◽  
Smartphone App ◽  
Randomized Controlled ◽  
User Friendly

scholarly journals Intensive practical lifestyle intervention improves endothelial function in metabolic syndrome independent of weight loss: a randomized controlled trial

Metabolism ◽  
2011 ◽  
Vol 60 (12) ◽  
pp. 1736-1740 ◽  
Author(s):  
Beatriz G.S. Seligman ◽  
Carisi A. Polanczyk ◽  
Angela S.B. Santos ◽  
Murilo Foppa ◽  
Mauricio Junges ◽  
...  
Keyword(s):  
Metabolic Syndrome ◽  
Weight Loss ◽  
Randomized Controlled Trial ◽  
Endothelial Function ◽  
Lifestyle Intervention ◽  
Controlled Trial ◽  
Randomized Controlled

scholarly journals User Experiences of a Smartphone-Based Attentive Eating App and Their Association With Diet and Weight Loss Outcomes: Thematic and Exploratory Analyses From a Randomized Controlled Trial

10.2196/16780 ◽  
2020 ◽  
Vol 8 (10) ◽  
pp. e16780
Author(s):  
Victoria Whitelock ◽  
Inge Kersbergen ◽  
Suzanne Higgs ◽  
Paul Aveyard ◽  
Jason CG Halford ◽  
...  
Keyword(s):  
Weight Loss ◽  
Randomized Controlled Trial ◽  
Energy Intake ◽  
Controlled Trial ◽  
Barriers And Facilitators ◽  
Smartphone App ◽  
Reduce Food Intake ◽  
Linear Regression Models ◽  
Randomized Controlled ◽  
Weight Loss Outcomes

Background Short-term laboratory studies suggest that eating attentively can reduce food intake. However, in a recent randomized controlled trial we found no evidence that using an attentive eating smartphone app outside of the laboratory had an effect on energy intake or weight loss over 8 weeks. Objective This research examined trial participants’ experiences of using an attentive eating smartphone app and whether app usage was associated with energy intake and weight loss outcomes over 8 weeks. Methods We conducted thematic analysis of semistructured interviews (N=38) among participants in the attentive eating smartphone app group of the trial who completed the 8-week assessment. Linear regression models examined the associations between energy intake and weight loss outcomes at 8 weeks and app usage. Results Participants reported several barriers and facilitators to using the smartphone app, including repetition of app content, social setting, motivation, and habitual use of the app. Participants believed that using the app had some beneficial effects on their eating behavior and diet. Exploratory analyses indicated that more frequent recording of eating episodes in the app was associated with lower body weight (B=–0.02, P=.004) and greater self-reported energy intake (B=5.98, P=.01) at 8 weeks, but not body fat percentage or taste-test energy intake. Total audio clip plays, gallery views, and percentage of food entries recorded using an image were not significantly associated with energy intake or weight. Conclusions Frequent recording of eating episodes in a smartphone app was associated with greater weight loss. There are barriers and facilitators to frequent use of an attentive eating smartphone app that may be useful to address when designing dietary behavior change smartphone apps. Trial Registration ClinicalTrials.gov NCT03602001; https://clinicaltrials.gov/ct2/show/NCT03602001; Open Science Framework DOI 10.17605/osf.io/btzhw; https://osf.io/btzhw/

scholarly journals Effect of an Intensive Weight-Loss Lifestyle Intervention on Kidney Function: A Randomized Controlled Trial

2020 ◽  
Author(s):  
Andrés Díaz-López ◽  
Nerea Becerra-Tomás ◽  
Verónica Ruiz ◽  
Estefanía Toledo ◽  
Nancy Babio ◽  
...  
Keyword(s):  
Weight Loss ◽  
Randomized Controlled Trial ◽  
Renal Function ◽  
Lifestyle Intervention ◽  
Controlled Trial ◽  
Support Intervention ◽  
Randomized Controlled ◽  
Urine Albumin ◽  
And Control ◽  
Registration Date

Abstract BackgroundLarge randomized trials testing the effect of a multifactorial weight-loss lifestyle intervention including Mediterranean diet (MedDiet) on renal function are lacking. Here, we evaluated the 1-year efficacy of an intensive weight-loss intervention with an energy-reduced MedDiet (erMedDiet) plus increased physical activity (PA) on renal function.MethodsRandomized controlled “PREvención con DIeta MEDiterránea-Plus” (PREDIMED-Plus) trial conducted in 23 Spanish centers comprising 208 primary care clinics. Overweight/obese (n=6719) adults aged 55-75 years with metabolic syndrome were randomly assigned (1:1) to an intensive weight-loss lifestyle intervention with an erMedDiet, PA promotion and behavioral support (intervention) or usual-care advice to adhere to an energy-unrestricted MedDiet (control) between Sept-2013 and Dec-2016. The primary outcome was 1-year change in estimated glomerular filtration rate (eGFR). Secondary outcomes were changes in urine albumin-to-creatinine ratio (UACR), incidence of chronic kidney disease (CKD, eGFR<60 ml/min/1.73m2 or stage 3 CKD) and micro-macroalbuminuria (UACR≥30 mg/g), and reversion of stage 3 to 2 CKD (eGFR between 60-<90 ml/min/1.73m2) or micro-macroalbuminuria.ResultsAfter 1-year eGFR declined by 0.66 and 1.25 ml/min/1.73m2 in the intervention and control groups, respectively (mean difference, 0.58 ml/min/1.73m2; 95%CI, 0.15 to 1.02). There were no between-group differences in mean UACR or micro-macroalbuminuria changes. CKD incidence and reversion of stage 3 to 2 CKD were 40% lower (HR 0.60; 0.44 to 0.82) and 92% higher (HR 1.92; 1.35 to 2.73), respectively, in the intervention group.ConclusionsThe PREDIMED-Plus lifestyle intervention is an effective approach for preserving renal function and preventing/delaying CKD progression in overweight/obese adults.Trial RegistrationThis study was registered at the International Standard Randomized Controlled Trial. isrctn.com Identifier: ISRCTN89898870. Registration date: 24 July 2014-Retrospectively registered.

scholarly journals Comparing Self-Monitoring Strategies for Weight Loss in a Smartphone App: Randomized Controlled Trial (Preprint)

2018 ◽  
Author(s):  
Michele L Patel ◽  
Christina M Hopkins ◽  
Taylor L Brooks ◽  
Gary G Bennett
Keyword(s):  
Weight Loss ◽  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Mobile App ◽  
Self Report ◽  
Smartphone App ◽  
Weight Loss Intervention ◽  
Behavioral Weight Loss ◽  
Self Monitoring ◽  
Randomized Controlled

BACKGROUND Self-monitoring of dietary intake is a valuable component of behavioral weight loss treatment; however, it declines quickly, thereby resulting in suboptimal treatment outcomes. OBJECTIVE This study aimed to examine a novel behavioral weight loss intervention that aims to attenuate the decline in dietary self-monitoring engagement. METHODS GoalTracker was an automated randomized controlled trial. Participants were adults with overweight or obesity (n=105; aged 21-65 years; body mass index, BMI, 25-45 kg/m2) and were randomized to a 12-week stand-alone weight loss intervention using the MyFitnessPal smartphone app for daily self-monitoring of either (1) both weight and diet, with weekly lessons, action plans, and feedback (Simultaneous); (2) weight through week 4, then added diet, with the same behavioral components (Sequential); or (3) only diet (App-Only). All groups received a goal to lose 5% of initial weight by 12 weeks, a tailored calorie goal, and automated in-app reminders. Participants were recruited via online and offline methods. Weight was collected in-person at baseline, 1 month, and 3 months using calibrated scales and via self-report at 6 months. We retrieved objective self-monitoring engagement data from MyFitnessPal using an application programming interface. Engagement was defined as the number of days per week in which tracking occurred, with diet entries counted if ≥800 kcal per day. Other assessment data were collected in-person via online self-report questionnaires. RESULTS At baseline, participants (84/100 female) had a mean age (SD) of 42.7 (11.7) years and a BMI of 31.9 (SD 4.5) kg/m2. One-third (33/100) were from racial or ethnic minority groups. During the trial, 5 participants became ineligible. Of the remaining 100 participants, 84% (84/100) and 76% (76/100) completed the 1-month and 3-month visits, respectively. In intent-to-treat analyses, there was no difference in weight change at 3 months between the Sequential arm (mean −2.7 kg, 95% CI −3.9 to −1.5) and either the App-Only arm (−2.4 kg, −3.7 to −1.2; P=.78) or the Simultaneous arm (−2.8 kg, −4.0 to −1.5; P=.72). The median number of days of self-monitoring diet per week was 1.9 (interquartile range [IQR] 0.3-5.5) in Sequential (once began), 5.3 (IQR 1.8-6.7) in Simultaneous, and 2.9 (IQR 1.2-5.2) in App-Only. Weight was tracked 4.8 (IQR 1.9-6.3) days per week in Sequential and 5.1 (IQR 1.8-6.3) days per week in Simultaneous. Engagement in neither diet nor weight tracking differed between arms. CONCLUSIONS Regardless of the order in which diet is tracked, using tailored goals and a commercial mobile app can produce clinically significant weight loss. Stand-alone digital health treatments may be a viable option for those looking for a lower intensity approach. CLINICALTRIAL ClinicalTrials.gov NCT03254953; https://clinicaltrials.gov/ct2/show/NCT03254953 (Archived by WebCite at http://www.webcitation.org/72PyQrFjn).

scholarly journals User Experiences of a Smartphone-Based Attentive Eating App and Their Association With Diet and Weight Loss Outcomes: Thematic and Exploratory Analyses From a Randomized Controlled Trial (Preprint)

2019 ◽  
Author(s):  
Victoria Whitelock ◽  
Inge Kersbergen ◽  
Suzanne Higgs ◽  
Paul Aveyard ◽  
Jason CG Halford ◽  
...  
Keyword(s):  
Weight Loss ◽  
Randomized Controlled Trial ◽  
Energy Intake ◽  
Controlled Trial ◽  
Barriers And Facilitators ◽  
Smartphone App ◽  
Reduce Food Intake ◽  
Linear Regression Models ◽  
Randomized Controlled ◽  
Weight Loss Outcomes

BACKGROUND Short-term laboratory studies suggest that eating attentively can reduce food intake. However, in a recent randomized controlled trial we found no evidence that using an attentive eating smartphone app outside of the laboratory had an effect on energy intake or weight loss over 8 weeks. OBJECTIVE This research examined trial participants’ experiences of using an attentive eating smartphone app and whether app usage was associated with energy intake and weight loss outcomes over 8 weeks. METHODS We conducted thematic analysis of semistructured interviews (N=38) among participants in the attentive eating smartphone app group of the trial who completed the 8-week assessment. Linear regression models examined the associations between energy intake and weight loss outcomes at 8 weeks and app usage. RESULTS Participants reported several barriers and facilitators to using the smartphone app, including repetition of app content, social setting, motivation, and habitual use of the app. Participants believed that using the app had some beneficial effects on their eating behavior and diet. Exploratory analyses indicated that more frequent recording of eating episodes in the app was associated with lower body weight (<i>B</i>=–0.02, <i>P</i>=.004) and greater self-reported energy intake (<i>B</i>=5.98, <i>P</i>=.01) at 8 weeks, but not body fat percentage or taste-test energy intake. Total audio clip plays, gallery views, and percentage of food entries recorded using an image were not significantly associated with energy intake or weight. CONCLUSIONS Frequent recording of eating episodes in a smartphone app was associated with greater weight loss. There are barriers and facilitators to frequent use of an attentive eating smartphone app that may be useful to address when designing dietary behavior change smartphone apps. CLINICALTRIAL ClinicalTrials.gov NCT03602001; https://clinicaltrials.gov/ct2/show/NCT03602001; Open Science Framework DOI 10.17605/osf.io/btzhw; https://osf.io/btzhw/

scholarly journals Comparing Self-Monitoring Strategies for Weight Loss in a Smartphone App: Randomized Controlled Trial

10.2196/12209 ◽  
2019 ◽  
Vol 7 (2) ◽  
pp. e12209 ◽  
Author(s):  
Michele L Patel ◽  
Christina M Hopkins ◽  
Taylor L Brooks ◽  
Gary G Bennett
Keyword(s):  
Weight Loss ◽  
Randomized Controlled Trial ◽  
Controlled Trial ◽  
Smartphone App ◽  
Self Monitoring ◽  
Randomized Controlled ◽  
Monitoring Strategies

scholarly journals Clinic Versus Online Social Network�Delivered Lifestyle Interventions: Protocol for the Get Social Noninferiority Randomized Controlled Trial (Preprint)

2017 ◽  
Author(s):  
Monica L Wang ◽  
Molly E Waring ◽  
Danielle E Jake-Schoffman ◽  
Jessica L Oleski ◽  
Zachary Michaels ◽  
...  
Keyword(s):  
Weight Loss ◽  
Randomized Controlled Trial ◽  
Social Network ◽  
Lifestyle Intervention ◽  
Online Social Networks ◽  
Controlled Trial ◽  
Online Social Network ◽  
Lifestyle Interventions ◽  
Obese Adults ◽  
Randomized Controlled

BACKGROUND Online social networks may be a promising modality to deliver lifestyle interventions by reducing cost and burden. Although online social networks have been integrated as one component of multimodality lifestyle interventions, no randomized trials to date have compared a lifestyle intervention delivered entirely via online social network with a traditional clinic-delivered intervention. OBJECTIVE This paper describes the design and methods of a noninferiority randomized controlled trial, testing (1) whether a lifestyle intervention delivered entirely through an online social network would produce weight loss that would not be appreciably worse than that induced by a traditional clinic-based lifestyle intervention among overweight and obese adults and (2) whether the former would do so at a lower cost. METHODS Adults with body mass index (BMI) between 27 and 45 kg/m2 (N=328) will be recruited from the communities in central Massachusetts. These overweight or obese adults will be randomized to two conditions: a lifestyle intervention delivered entirely via the online social network Twitter (Get Social condition) and an in-person group-based lifestyle intervention (Traditional condition) among overweight and obese adults. Measures will be obtained at baseline, 6 months, and 12 months after randomization. The primary noninferiority outcome is percentage weight loss at 12 months. Secondary noninferiority outcomes include dietary intake and moderate intensity physical activity at 12 months. Our secondary aim is to compare the conditions on cost. Exploratory outcomes include treatment retention, acceptability, and burden. Finally, we will explore predictors of weight loss in the online social network condition. RESULTS The final wave of data collection is expected to conclude in June 2019. Data analysis will take place in the months following and is expected to be complete in September 2019. CONCLUSIONS Findings will extend the literature by revealing whether delivering a lifestyle intervention via an online social network is an effective alternative to the traditional modality of clinic visits, given the former might be more scalable and feasible to implement in settings that cannot support clinic-based models. CLINICALTRIAL ClinicalTrials.gov NCT02646618; https://clinicaltrials.gov/ct2/show/NCT02646618 (Archived by WebCite at http://www.webcitation.org/6v20waTFW)

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