1
|
Favieri F, French MN, Casagrande M, Chen EY. Physical activity interventions have a moderate effect in increasing physical activity in university students-a meta-analysis. JOURNAL OF AMERICAN COLLEGE HEALTH : J OF ACH 2023; 71:2823-2834. [PMID: 35044891 DOI: 10.1080/07448481.2021.1998070] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 08/16/2021] [Accepted: 10/17/2021] [Indexed: 06/14/2023]
Abstract
INTRODUCTION The transition to college is associated with changes in physical activity. This meta-analysis aims to quantify the effect of interventions on increasing physical activity in healthy university students. METHODS We conducted a literature search (up to 2/3/2020) to identify randomized controlled trials with healthy undergraduate or graduate students enrolled in a college degree program. Moderator analyses were conducted to examine the effects of intervention modality delivery (delivered in-person or remotely) and the type of outcome measure (self-report or objective measures). RESULTS 18 publications were included. Interventions had a medium effect on physical activity (Cohen's d = 0.52). Moderator analyses revealed no differences. CONCLUSION Suggestions of how to improve the quality of physical activity intervention studies in college students are given. The moderate effect size of physical activity interventions in college students highlights the importance of developing and testing new interventions to promote physical activity in emerging adults. Supplemental data for this article can be accessed online at https://doi.org/10.1080/07448481.2021.1998070 .
Collapse
Affiliation(s)
- Francesca Favieri
- Department of Psychology, "Sapienza" University of Rome, Rome, Italy
- Body and Action Lab, IRCCS Fondazione Santa Lucia, Rome, Italy
| | - Melanie N French
- Department of Psychology, Temple University, Philadelphia, Pennsylvania, USA
| | - Maria Casagrande
- Department of Dynamic and Clinical Psychology, and Health studies, "Sapienza" University of Rome, Rome, Italy
| | - Eunice Y Chen
- Department of Psychology, Temple University, Philadelphia, Pennsylvania, USA
| |
Collapse
|
2
|
Pacanowski CR, Dominick G, Crosby RD, Engel SG, Cao L, Linde JA. Daily self-weighing compared with an active control causes greater negative affective lability in emerging adult women: A randomized trial. Appl Psychol Health Well Being 2023; 15:1695-1713. [PMID: 37339756 DOI: 10.1111/aphw.12463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 05/26/2023] [Indexed: 06/22/2023]
Abstract
Age-related weight gain prevention may reduce population overweight/obesity. Emerging adulthood is a crucial time to act, as rate of gain accelerates and health habits develop. Evidence supports self-weighing (SW) for preventing weight gain; however, how SW impacts psychological states and behaviors in vulnerable groups is unclear. This study assessed daily SW effects on affective lability, stress, weight-related stress, body satisfaction, and weight-control behaviors. Sixty-nine university females (aged 18-22) were randomized to daily SW or temperature-taking (TT) control. Over 2 weeks, participants completed five daily ecological momentary assessments with their intervention behavior. A graph of their data with a trendline was emailed daily, with no other intervention components. Multilevel mixed models with random effect for day assessed variability in positive/negative affect. Generalized linear mixed models assessed outcomes pre- and post-SW or TT and generalized estimating equations assessed weight-control behaviors. Negative affective lability was significantly greater for SW versus TT. While general stress did not differ between groups, weight-related stress was significantly higher and body satisfaction was significantly lower post-behavior for SW but not TT. Groups did not significantly differ in the number or probability of weight-control behaviors. Caution is advised when recommending self-weighing to prevent weight gain for emerging adults.
Collapse
Affiliation(s)
- C R Pacanowski
- Department of Behavioral Health and Nutrition, University of Delaware, Newark, Delaware, USA
| | - G Dominick
- Department of Behavioral Health and Nutrition, University of Delaware, Newark, Delaware, USA
| | - R D Crosby
- Sanford Center for Biobehavioral Research, Fargo, North Dakota, USA
| | - S G Engel
- Sanford Center for Biobehavioral Research, Fargo, North Dakota, USA
| | - L Cao
- Sanford Center for Biobehavioral Research, Fargo, North Dakota, USA
| | - J A Linde
- Department of Epidemiology and Community Health, University of Minnesota, Minneapolis, Minnesota, USA
| |
Collapse
|
3
|
LaRose JG, Leahey TM, Lanoye A, Bean MK, Fava JL, Tate DF, Evans RK, Wickham EP, Henderson MM. Effect of a Lifestyle Intervention on Cardiometabolic Health Among Emerging Adults: A Randomized Clinical Trial. JAMA Netw Open 2022; 5:e2231903. [PMID: 36121656 PMCID: PMC9486452 DOI: 10.1001/jamanetworkopen.2022.31903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
IMPORTANCE The prevalence of obesity has increased substantially among emerging adults, yet no previous large-scale behavioral weight loss trials have been conducted among this age group. OBJECTIVE To test the effect of 2 theory-based motivational enhancements on weight loss within a primarily digital lifestyle intervention designed for emerging adults. DESIGN, SETTING, AND PARTICIPANTS In this randomized clinical trial conducted at an academic medical research center, 382 participants aged 18 to 25 years with a body mass index (BMI; calculated as weight in kilograms divided by height in meters squared) of 25 to 45 were enrolled between February 2, 2016, and February 6, 2019. Data collection was completed February 8, 2020. Analysis was performed on an intention-to-treat basis. INTERVENTIONS Participants were randomized to 1 of 3 groups: developmentally adapted behavioral weight loss (aBWL), aBWL plus behavioral economics (aBWL + BE), or aBWL plus self-determination theory (aBWL + SDT). All groups received a 6-month intervention with 1 group session, 1 individual session, and a digital platform (digital tools for self-monitoring, weekly lessons, tailored feedback, text messages, and optional social media). The aBWL + BE group received modest financial incentives for self-monitoring and weight loss; the aBWL + SDT group received optional experiential classes. Coaching and message framing varied by group. MAIN OUTCOMES AND MEASURES The primary outcome was mean (SE) weight change (in kilograms) at 6 months. Secondary outcomes included proportion of participants achieving weight loss of 5% or more, percentage weight change, waist circumference, body composition, and blood pressure. RESULTS Among the 382 participants (mean [SD] age, 21.9 [2.2] years), 316 (82.7%) were female, mean (SD) BMI was 33.5 (4.9), 222 (58.1%) were of underrepresented race and/or ethnicity, and 320 (83.8%) were retained at the primary end point. There was a significant time effect for mean (SE) weight loss (-3.22 [0.55] kg in the aBWL group; -3.47 [0.55] kg in the aBWL + BE group; and -3.40 [0.53] kg in the aBWL + SDT group; all P < .001), but no between-group differences were observed (aBWL vs aBWL + BE: difference, -0.25 kg [95% CI, -1.79 to 1.29 kg]; P = .75; aBWL vs aBWL + SDT: difference, -0.18 kg [95% CI, -1.67 to 1.31 kg]; P = .81; and aBWL + SDT vs aBWL + BE: difference, 0.07 kg [95% CI, -1.45 to 1.59 kg]; P = .93). The proportion of participants achieving a weight loss of 5% or more was 40.0% in the aBWL group (50 of 125), 39.8% in the aBWL + BE group (51 of 128), and 44.2% in the aBWL + SDT group (57 of 129), which was not statistically different across groups (aBWL vs aBWL + BE, P = .89; aBWL vs aBWL + SDT, P = .45; aBWL + SDT vs aBWL + BE, P = .54). Parallel findings were observed for all secondary outcomes-clinically and statistically significant improvements with no differences between groups. CONCLUSIONS AND RELEVANCE In this randomized clinical trial, all interventions produced clinically significant benefit, but neither of the motivational enhancements promoted greater reductions in adiposity compared with the developmentally adapted standard group. Continued efforts are needed to optimize lifestyle interventions for this high-risk population and determine which intervention works best for specific individuals based on sociodemographic and/or psychosocial characteristics. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT02736981.
Collapse
Affiliation(s)
- Jessica Gokee LaRose
- Department of Health Behavior and Policy, School of Medicine, Virginia Commonwealth University, Richmond
| | - Tricia M. Leahey
- Department of Allied Health Sciences, University of Connecticut, Storrs
| | - Autumn Lanoye
- Department of Health Behavior and Policy, School of Medicine, Virginia Commonwealth University, Richmond
- Massey Cancer Center, Virginia Commonwealth University, Richmond
| | - Melanie K. Bean
- Department of Pediatrics, School of Medicine, Virginia Commonwealth University, Richmond
- Children’s Hospital of Richmond at Virginia Commonwealth University, Richmond
| | - Joseph L. Fava
- Centers for Behavioral and Preventive Medicine, The Miriam Hospital, Providence, Rhode Island
| | - Deborah F. Tate
- Department of Nutrition, University of North Carolina at Chapel Hill, Chapel Hill
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill
| | - Ronald K. Evans
- Department of Kinesiology and Health Sciences, Virginia Commonwealth University, Richmond
| | - Edmond P. Wickham
- Department of Pediatrics, School of Medicine, Virginia Commonwealth University, Richmond
- Children’s Hospital of Richmond at Virginia Commonwealth University, Richmond
- Department of Internal Medicine, School of Medicine, Virginia Commonwealth University, Richmond
| | - Megan M. Henderson
- Department of Health Behavior and Policy, School of Medicine, Virginia Commonwealth University, Richmond
| |
Collapse
|
4
|
Carpenter CA, Ugwoaba UA, Cardel MI, Ross KM. Using self-monitoring technology for nutritional counseling and weight management. Digit Health 2022; 8:20552076221102774. [PMID: 35663238 PMCID: PMC9158426 DOI: 10.1177/20552076221102774] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 05/08/2022] [Indexed: 02/01/2023] Open
Abstract
Self-monitoring of weight, dietary intake, and physical activity is a key strategy for weight management in adults with obesity. Despite research suggesting consistent associations between more frequent self-monitoring and greater success with weight regulation, adherence is often suboptimal and tends to decrease over time. New technologies such as smartphone applications, e-scales, and wearable devices can help eliminate some of the barriers individuals experience with traditional self-monitoring tools, and research has demonstrated that these tools may improve self-monitoring adherence. To improve the integration of these tools in clinical practice, the current narrative review introduces the various types of self-monitoring technologies, presents current evidence regarding their use for nutrition support and weight management, and provides guidance for optimal implementation. The review ends with a discussion of barriers to the implementation of these technologies and the role that they should optimally play in nutritional counseling and weight management. Although newer self-monitoring technologies may help improve adherence to self-monitoring, these tools should not be viewed as an intervention in and of themselves and are most efficacious when implemented with ongoing clinical support.
Collapse
Affiliation(s)
| | | | - Michelle I Cardel
- University of Florida, Gainesville, FL, USA,WW International, Inc, New York, NY
| | - Kathryn M Ross
- University of Florida, Gainesville, FL, USA,Kathryn M. Ross, Department of Clinical and Health Psychology, University of Florida, PO Box 100165, Gainesville, FL 32610, USA.
| |
Collapse
|
5
|
Lovan P, George F, Campa A, Huffman F, Coccia C. The Effect of Mood Change and Intuitive Eating Skills on Self-Regulation of Food Intake among Undergraduate College Students. AMERICAN JOURNAL OF HEALTH EDUCATION 2022. [DOI: 10.1080/19325037.2022.2048748] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
6
|
Lovan P, George F, Coccia C. Calorie Compensation and Self-Regulation of Food Intake in College Students. JOURNAL OF NUTRITION EDUCATION AND BEHAVIOR 2022; 54:311-319. [PMID: 35400396 DOI: 10.1016/j.jneb.2021.12.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2021] [Revised: 11/29/2021] [Accepted: 12/22/2021] [Indexed: 06/14/2023]
Abstract
OBJECTIVE To examine self-regulation of food intake among college students. DESIGN Randomized cross-over study completed between September and November, 2019. SETTING A large public university, Florida International University in South Florida. PARTICIPANTS A total of 60 undergraduate college students, mean age of 19.8 ± 1.43 years old, 62% female, 74% Hispanic, 76% White. INTERVENTION(S) Participants attended 2 trials 1 week apart. During each visit, students were offered a preload drink (either 0 or 210 kcal) followed by a buffet-style lunch. Food intake was estimated using weights and pictures of the plates before and after eating and was compared between the 2 sessions. MAIN OUTCOME MEASURE(S) Self-regulation by calculating compensation indices (COMPX) and their correlation with students' body mass index (BMI). ANALYSIS Intake differences were examined using Welch and t tests. Regression analysis was used to assess correlations. RESULTS Students exhibited the ability to calorie compensate when intake is manipulated with a mean COMPX of 95.57 ± 71.19. No score was perfect. There was a significant correlation between BMI and COMPX scores (F = 10.71, P < 0.001, r2 = 0.292). Food choices differed between different BMI categories. CONCLUSIONS AND IMPLICATIONS Participants showed some degree of self-regulation, which suggests opportunities for creating effective interventions to improve health status and promote a more sustainable method to control consumption among college students.
Collapse
Affiliation(s)
- Padideh Lovan
- Department of Psychology, University of Miami, Miami, FL
| | - Florence George
- Department of Mathematics and Statistics, Florida International University, Miami, FL
| | - Catherine Coccia
- Department of Dietetics and Nutrition, Florida International University, Miami, FL.
| |
Collapse
|
7
|
Dang N, Khalil D, Sun J, Naveed A, Soumare F, Hamidovic A. Waist Circumference and Its Association With Premenstrual Food Craving: The PHASE Longitudinal Study. Front Psychiatry 2022; 13:784316. [PMID: 35573360 PMCID: PMC9091555 DOI: 10.3389/fpsyt.2022.784316] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Accepted: 04/04/2022] [Indexed: 12/02/2022] Open
Abstract
Visceral adiposity is a significant marker of all-cause mortality. Reproductive age women are at a considerable risk for developing visceral adiposity; however, the associated factors are poorly understood. The proposed study evaluated whether food craving experienced during the premenstrual period is associated with waist circumference. Forty-six women (mean BMI = 24.36) prospectively provided daily ratings of food craving across two-three menstrual cycles (122 cycles total). Their premenstrual rating of food craving was contrasted against food craving in the follicular phase to derive a corrected summary score of the premenstrual food craving increase. Study groups were divided into normal (n = 26) and obese (n = 20) based on the 80 cm waist circumference cutoff signifying an increase in risk. Waist circumference category was significantly associated with premenstrual food cravings [F (1,44) = 5.12, p = 0.028]. Post hoc comparisons using the Tukey HSD test (95% family-wise confidence level) showed that the mean score for the food craving effect size was 0.35 higher for the abdominally obese vs. normal study groups (95% CI: 0.039 to 0.67). The result was statistically significant even following inclusion of BMI in the model, pointing to a particularly dangerous process of central fat accumulation. The present study establishes an association between temporal vulnerability to an increased food-related behavior and a marker of metabolic abnormality risk (i.e., waist circumference), thereby forming a basis for integrating the premenstruum as a viable intervention target for this at-risk sex and age group.
Collapse
Affiliation(s)
- Nhan Dang
- Department of Public Health, University of Illinois at Chicago, Chicago, IL, United States
| | - Dina Khalil
- Department of Public Health, Benedictine University, Lisle, IL, United States
| | - Jiehuan Sun
- Department of Public Health, University of Illinois at Chicago, Chicago, IL, United States
| | - Aamina Naveed
- Department of Pharmacy, University of Illinois, Chicago, IL, United States
| | - Fatimata Soumare
- Department of Pharmacy, University of Illinois, Chicago, IL, United States
| | - Ajna Hamidovic
- Department of Pharmacy, University of Illinois, Chicago, IL, United States
| |
Collapse
|
8
|
Hahn SL, Linxwiler AN, Huynh T, Rose KL, Bauer KW, Sonneville KR. Impacts of dietary self-monitoring via MyFitnessPal to undergraduate women: A qualitative study. Body Image 2021; 39:221-226. [PMID: 34534770 PMCID: PMC8643308 DOI: 10.1016/j.bodyim.2021.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 08/23/2021] [Accepted: 08/28/2021] [Indexed: 11/30/2022]
Abstract
The present study explored college women's perceptions of how dietary self-monitoring alters eating and body image-related cognitions and behaviors. The sample consisted of undergraduate women (N = 20), aged ≥ 18 (mean = 21.9 ± 6.6 years) from a cross-sectional qualitative study using semi-structured interviews conducted upon participants' completion of a randomized controlled trial testing the effects of dietary self-monitoring via the smartphone app, MyFitnessPal. Inductive content analysis was utilized to identify participants' perceptions of how engaging in dietary self-monitoring for one month impacted them. Participants' experiences dietary self-monitoring was highly variable, with some participants reporting increased negative feelings (n = 9), positive feelings (n = 7), or both (n = 2). Other notable findings included increases in weight and/or shape concerns (n = 10) and a number of changes in dietary intake and other behaviors. Participants indicated that dietary self-monitoring may be helpful when trying to lose weight but harmful if the behavior becomes obsessive or if the user has poor body image. Individual experiences with dietary self-monitoring varies widely, and while dietary self-monitoring may be a useful tool for some college women, use should be monitored to avoid possible harmful side effects.
Collapse
Affiliation(s)
- Samantha L. Hahn
- Department of Nutritional Sciences, University of Michigan School of Public Health,Division of Epidemiology & Community Health, University of Minnesota School of Public Health,Department of Psychiatry & Behavioral Sciences, University of Minnesota Medical School
| | - Ashley N. Linxwiler
- Department of Nutritional Sciences, University of Michigan School of Public Health
| | - Tran Huynh
- Department of Nutritional Sciences, University of Michigan School of Public Health
| | - Kelsey L. Rose
- Department of Nutritional Sciences, University of Michigan School of Public Health,Division of Adolescent Medicine, Boston Children’s Hospital
| | - Katherine W. Bauer
- Department of Nutritional Sciences, University of Michigan School of Public Health
| | | |
Collapse
|
9
|
Dutton GR, Kinsey AW, Howell CR, Pisu M, Dobelstein AE, Allison DB, Xun P, Levitsky DA, Fontaine K. The daily Self-Weighing for Obesity Management in Primary Care Study: Rationale, design and methodology. Contemp Clin Trials 2021; 107:106463. [PMID: 34082075 DOI: 10.1016/j.cct.2021.106463] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 05/18/2021] [Accepted: 05/28/2021] [Indexed: 11/17/2022]
Abstract
Background Daily self-weighing (DSW) may be an effective harm-reduction intervention to disrupt continued weight gain. Self-Weighing for Obesity Management in Primary Care (SWOP) is a 24-month randomized controlled trial in 400 adults with obesity (BMI: kg/m2 ≥ 30) receiving primary care through a clinical network affiliated with an academic medical center. Objective To test DSW as a potentially scalable way to deter age-related weight gain among primary care patients with obesity. Methods Randomized-controlled trial with two conditions: DSW (instruction to weigh daily and provision of a web-enabled digital scale with graphical weight feedback) or Standard Care (receive a monetary gift card equivalent to value of the scale). Both groups receive standardized weight management educational material. SWOP will test the causal effect of assignment to DSW (Aim 1) and adherence to DSW (Aim 2) on weight (primary outcome) and adoption of weight management practices (secondary outcomes), as well as evaluate the cost-effectiveness of DSW compared to standard care (Aim 3). Findings may inform clinical guidelines for weight management by providing evidence that DSW attenuates continued age-related weight gain among adults with obesity. This trial is registered with ClinicalTrials.gov (NCT04044794).
Collapse
Affiliation(s)
- Gareth R Dutton
- Department of Medicine, Division of Preventive Medicine, University of Alabama at Birmingham, 1717 11th Avenue South, Birmingham, AL 35205, USA.
| | - Amber W Kinsey
- Department of Medicine, Division of Preventive Medicine, University of Alabama at Birmingham, 1717 11th Avenue South, Birmingham, AL 35205, USA.
| | - Carrie R Howell
- Department of Medicine, Division of Preventive Medicine, University of Alabama at Birmingham, 1717 11th Avenue South, Birmingham, AL 35205, USA.
| | - Maria Pisu
- Department of Medicine, Division of Preventive Medicine, University of Alabama at Birmingham, 1717 11th Avenue South, Birmingham, AL 35205, USA.
| | - Amy E Dobelstein
- Department of Medicine, Division of Preventive Medicine, University of Alabama at Birmingham, 1717 11th Avenue South, Birmingham, AL 35205, USA.
| | - David B Allison
- Department of Epidemiology and Biostatistics, School of Public Health, Indiana University-Bloomington, 1025 E. 7th Street, Bloomington, IN 47405, USA.
| | - Pengcheng Xun
- Department of Epidemiology and Biostatistics, School of Public Health, Indiana University-Bloomington, 1025 E. 7th Street, Bloomington, IN 47405, USA
| | - David A Levitsky
- Division of Nutritional Sciences, College of Human Ecology, Cornell University, 244 Garden Ave, Ithaca, NY 14853, USA.
| | - Kevin Fontaine
- Department of Health Behavior, School of Public Health, University of Alabama at Birmingham, 1665 University Boulevard, Birmingham, AL 35233, USA.
| |
Collapse
|
10
|
Behavioral weight loss in emerging adults: Design and rationale for the Richmond Emerging Adults Choosing Health (REACH) randomized clinical trial. Contemp Clin Trials 2021; 107:106426. [PMID: 34044124 DOI: 10.1016/j.cct.2021.106426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 04/15/2021] [Accepted: 04/28/2021] [Indexed: 11/23/2022]
Abstract
BACKGROUND In the U.S., over 40% of 18-25 year olds meet criteria for overweight or obesity. Yet, no large-scale trials have targeted this age group for behavioral weight loss (BWL). Formative data revealed that existing BWL programs do not meet their unique needs and identified motivation as a fundamental barrier for weight management. The goal of the Richmond Emerging Adults Choosing Health (REACH) trial was to test the efficacy of two mHealth lifestyle interventions specifically focused on enhancing motivation, relative to adapted standard. METHODS Participants (N = 381, 18-25 years, body mass index 25-45 kg/m2) will be randomized to 1) adapted BWL (aBWL), 2) aBWL + self-determination theory (aBWL+SDT), or 3) aBWL + behavioral economics (aBWL+BE). All arms will receive a 6-month intervention, delivered via one group session and one individual session, followed by an mHealth platform. Assessments will occur at baseline, 3-months, 6-months (post-treatment) and 12-months (following a no-contact period). The primary aim is to compare weight loss outcomes at 6 months. Secondary aims include changes at 6-months in physical and behavioral cardiometabolic risk factors, as well as psychosocial measures. We will also explore weight loss maintenance, change in hypothesized mediators, and moderators of treatment response. DISCUSSION REACH is the first large-scale BWL trial designed specifically for emerging adults. Further, it will be the first trial to compare a lifestyle intervention grounded in self-determination theory to one rooted in behavioral economics. If clinically significant reductions in adiposity are achieved, findings could inform a scalable treatment model to meet the needs of this vulnerable population. TRIAL REGISTRATION NCT02736981.
Collapse
|
11
|
Nezami BT, Valle CG, Nulty AK, Espeland M, Wing RR, Tate DF. Predictors and Outcomes of Digital Weighing and Activity Tracking Lapses Among Young Adults During Weight Gain Prevention. Obesity (Silver Spring) 2021; 29:698-705. [PMID: 33759388 PMCID: PMC7995618 DOI: 10.1002/oby.23123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 12/22/2020] [Accepted: 12/29/2020] [Indexed: 11/09/2022]
Abstract
OBJECTIVES Self-monitoring is critical for weight management, but little is known about lapses in the use of digital self-monitoring. The objectives of this study were to examine whether lapses in self-weighing and wearing activity trackers are associated with weight and activity outcomes and to identify objective predictors of lapses. METHODS Participants (N = 160, BMI = 25.5 ± 3.3 kg/m2 , 33.1 ± 4.6 years old) were drawn from a sample of young adults in the Study of Novel Approaches to Prevention-Extension (SNAP-E) weight gain prevention trial. Analyses evaluated associations between weighing and tracker lapses and changes in weight and steps/day during the first 90 days after receiving a smart scale and activity tracker. RESULTS On average, participants self-weighed 49.6% of days and wore activity trackers 75.2% of days. Every 1-day increase in a weighing lapse was associated with a 0.06-lb gain. Lapses in tracker wear were not associated with changes in steps/day or weight between wear days. Weight gain predicted a higher likelihood of starting a lapse in weighing and tracker wear, whereas lower steps predicted a higher likelihood of a tracker lapse. CONCLUSIONS Weight gain may discourage adherence to self-monitoring. Future research could examine just-in-time supports to anticipate and reduce the frequency or length of self-monitoring lapses.
Collapse
Affiliation(s)
- Brooke T. Nezami
- Department of Nutrition, University of North Carolina at
Chapel Hill, Chapel Hill, NC, USA
| | - Carmina G. Valle
- Department of Nutrition, University of North Carolina at
Chapel Hill, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North
Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Alison K. Nulty
- Department of Anthropology, University of North Carolina at
Chapel Hill, Chapel Hill, NC, USA
| | - Mark Espeland
- Division of Gerontology and Geriatric Medicine, Wake Forest
School of Medicine, Winston-Salem, NC, USA
| | - Rena R. Wing
- Department of Psychiatry and Human Behavior, Alpert Medical
School of Brown University, Miriam Hospital, Providence, RI, USA
| | - Deborah F. Tate
- Department of Nutrition, University of North Carolina at
Chapel Hill, Chapel Hill, NC, USA
- Lineberger Comprehensive Cancer Center, University of North
Carolina at Chapel Hill, Chapel Hill, NC, USA
- Department of Health Behavior, University of North Carolina
at Chapel Hill, Chapel Hill, NC, USA
| |
Collapse
|
12
|
Kim HH, Kim Y, Park YR. Interpretable Conditional Recurrent Neural Network for Weight Change Prediction: Algorithm Development and Validation Study. JMIR Mhealth Uhealth 2021; 9:e22183. [PMID: 33779574 PMCID: PMC8088842 DOI: 10.2196/22183] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Revised: 10/15/2020] [Accepted: 01/17/2021] [Indexed: 01/19/2023] Open
Abstract
Background In recent years, mobile-based interventions have received more attention as an alternative to on-site obesity management. Despite increased mobile interventions for obesity, there are lost opportunities to achieve better outcomes due to the lack of a predictive model using current existing longitudinal and cross-sectional health data. Noom (Noom Inc) is a mobile app that provides various lifestyle-related logs including food logging, exercise logging, and weight logging. Objective The aim of this study was to develop a weight change predictive model using an interpretable artificial intelligence algorithm for mobile-based interventions and to explore contributing factors to weight loss. Methods Lifelog mobile app (Noom) user data of individuals who used the weight loss program for 16 weeks in the United States were used to develop an interpretable recurrent neural network algorithm for weight prediction that considers both time-variant and time-fixed variables. From a total of 93,696 users in the coaching program, we excluded users who did not take part in the 16-week weight loss program or who were not overweight or obese or had not entered weight or meal records for the entire 16-week program. This interpretable model was trained and validated with 5-fold cross-validation (training set: 70%; testing: 30%) using the lifelog data. Mean absolute percentage error between actual weight loss and predicted weight was used to measure model performance. To better understand the behavior factors contributing to weight loss or gain, we calculated contribution coefficients in test sets. Results A total of 17,867 users’ data were included in the analysis. The overall mean absolute percentage error of the model was 3.50%, and the error of the model declined from 3.78% to 3.45% by the end of the program. The time-level attention weighting was shown to be equally distributed at 0.0625 each week, but this gradually decreased (from 0.0626 to 0.0624) as it approached 16 weeks. Factors such as usage pattern, weight input frequency, meal input adherence, exercise, and sharp decreases in weight trajectories had negative contribution coefficients of –0.021, –0.032, –0.015, and –0.066, respectively. For time-fixed variables, being male had a contribution coefficient of –0.091. Conclusions An interpretable algorithm, with both time-variant and time-fixed data, was used to precisely predict weight loss while preserving model transparency. This week-to-week prediction model is expected to improve weight loss and provide a global explanation of contributing factors, leading to better outcomes.
Collapse
Affiliation(s)
- Ho Heon Kim
- Department of Biomedical Systems Informatics, College of Medicine, Yonsei University, Seoul, Republic of Korea
| | | | - Yu Rang Park
- Department of Biomedical Systems Informatics, College of Medicine, Yonsei University, Seoul, Republic of Korea
| |
Collapse
|
13
|
Recruiting and retaining young adults: what can we learn from behavioural interventions targeting nutrition, physical activity and/or obesity? A systematic review of the literature. Public Health Nutr 2021; 24:5686-5703. [PMID: 33722332 DOI: 10.1017/s1368980021001129] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
OBJECTIVE To describe strategies used to recruit and retain young adults in nutrition, physical activity and/or obesity intervention studies, and quantify the success and efficiency of these strategies. DESIGN A systematic review was conducted. The search included six electronic databases to identify randomised controlled trials (RCT) published up to 6 December 2019 that evaluated nutrition, physical activity and/or obesity interventions in young adults (17-35 years). Recruitment was considered successful if the pre-determined sample size goal was met. Retention was considered acceptable if ≥80 % retained for ≤6-month follow-up or ≥70 % for >6-month follow-up. RESULTS From 21 582 manuscripts identified, 107 RCT were included. Universities were the most common recruitment setting used in eighty-four studies (79 %). Less than half (46 %) of the studies provided sufficient information to evaluate whether individual recruitment strategies met sample size goals, with 77 % successfully achieving recruitment targets. Reporting for retention was slightly better with 69 % of studies providing sufficient information to determine whether individual retention strategies achieved adequate retention rates. Of these, 65 % had adequate retention. CONCLUSIONS This review highlights poor reporting of recruitment and retention information across trials. Findings may not be applicable outside a university setting. Guidance on how to improve reporting practices to optimise recruitment and retention strategies within young adults could assist researchers in improving outcomes.
Collapse
|
14
|
Hahn SL, Pacanowski CR, Loth KA, Miller J, Eisenberg ME, Neumark-Sztainer D. Self-weighing among young adults: who weighs themselves and for whom does weighing affect mood? A cross-sectional study of a population-based sample. J Eat Disord 2021; 9:37. [PMID: 33691780 PMCID: PMC7945352 DOI: 10.1186/s40337-021-00391-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2020] [Accepted: 03/02/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Self-weighing is widespread among young adults and is sometimes recommended by healthcare providers for weight management. The present study aims to deepen our understanding of who is frequently self-weighing among young adults, and to examine for whom self-weighing impacts mood based on weighing frequency and other eating and weight-related characteristics. METHODS Survey data were collected from a large population-based sample of young adults (31.1 ± 1.6y) participating in Project EAT-IV (n = 1719). Cross-sectional data were stratified across sex and analyzed with chi-square, t-tests, and linear and logistic regressions controlling for age, ethnicity/race, education level, and income. RESULTS Self-weighing frequency was higher among male and female young adults with a current eating disorder, those trying to lose weight or who endorsed any disordered eating behaviors or cognition, and females with higher BMI. Young adult females were significantly more likely than males to report that self-weighing impacted their mood (53% vs 27%, p < 0.05). Among both male and female young adults, there was a higher probability of participants reporting that self-weighing impacted their mood among those who were self-weighing more frequently, had higher BMI, were trying to lose weight, and endorsed disordered eating behaviors or cognitions. CONCLUSION Findings suggest that for many young adults, particularly females and those with weight-related concerns, self-weighing is a behavior that comes with emotional valence. The emotional consequences of self-weighing should be considered when making public health and clinical recommendations regarding the usefulness of self-weighing.
Collapse
Affiliation(s)
- Samantha L Hahn
- Division of Epidemiology & Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA. .,Department of Psychiatry & Behavioral Sciences, Medical School, University of Minnesota, Minneapolis, MN, USA.
| | - Carly R Pacanowski
- Department of Behavioral Health and Nutrition, University of Delaware, Newark, DE, USA
| | - Katie A Loth
- Department of Family Medicine and Community Health, Medical School, University of Minnesota, Minneapolis, MN, USA
| | - Jonathan Miller
- Department of Family Medicine and Community Health, Medical School, University of Minnesota, Minneapolis, MN, USA
| | - Marla E Eisenberg
- Department of Pediatrics, Medical School, University of Minnesota, Minneapolis, MN, USA
| | - Dianne Neumark-Sztainer
- Division of Epidemiology & Community Health, School of Public Health, University of Minnesota, Minneapolis, MN, USA
| |
Collapse
|
15
|
Plummer A, Walker I. Can self-regulation explain why not everyone is overweight or obese? AUSTRALIAN JOURNAL OF PSYCHOLOGY 2021. [DOI: 10.1080/00049530.2021.1883999] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Ann Plummer
- Discipline of Psychology, University of Canberra, Canberra, Australia
| | - Iain Walker
- Discipline of Psychology, University of Canberra, Canberra, Australia
- Research School of Psychology, Australian National University, Australia
| |
Collapse
|
16
|
Bramante CT, Lee G, Amsili SS, Linde JA, Phelan SM, Appel LJ, Bennett WL, Clark JM, Gudzune KA. Minority and low-income patients are less likely to have a scale for self-weighing in their home: A survey in primary care. Clin Obes 2020; 10:e12363. [PMID: 32383356 PMCID: PMC7382396 DOI: 10.1111/cob.12363] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 02/28/2020] [Accepted: 03/13/2020] [Indexed: 01/07/2023]
Abstract
Daily self-weighing is a weight management behaviour that requires a scale; however, scale ownership may be cost-prohibitive for some patients. Our objective was to understand the proportion of primary care patients with a scale at home, and factors associated with home scale access, to potentially inform future interventions that facilitate scale access. Cross sectional survey of 216 adult patients from three primary care clinics: mixed-income urban/suburban (n = 68); mixed-income urban (n = 70); low-income urban (n = 74). The dependent variable was presence of a home scale; bivariate associations were conducted with variables including demographics, insurance type, clinic setting and self-reported height/weight. Mean age was 53 years; 71% women; 71% racial minority; mean body mass index 32 kg/m2 . Overall, 56% had a home scale. Most (79%) white patients owned a scale, compared to 46% of racial minority patients (P < .01); 33% of low-income patients owned scale, compared to over 66% of patients at the clinics serving mixed-income populations (P < .01). Most low-income urban clinic patients do not own a home scale. Because self-weighing is an effective weight-management behaviour, clinicians could consider assessing scale access, and future research should assess the health impact of providing scales to patients with overweight/obesity who desire weight loss or maintenance.
Collapse
Affiliation(s)
- Carolyn T Bramante
- University of Minnesota Medical School, Division of General Internal Medicine, Minneapolis, Minnesota, USA
| | - Grace Lee
- Johns Hopkins University, Homewood Campus, Baltimore, Maryland, USA
| | - Safira S Amsili
- Johns Hopkins University, Homewood Campus, Baltimore, Maryland, USA
| | - Jennifer A Linde
- University of Minnesota School of Public Health, Division of Epidemiology and Community Health, Minneapolis, Minnesota, USA
| | - Sean M Phelan
- Mayo Clinic, Division of Health Care Policy and Research, Rochester, Minnesota, USA
| | - Lawrence J Appel
- Johns Hopkins School of Medicine, Division of General Internal Medicine, Baltimore, Maryland, USA
- Johns Hopkins University, Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore, Maryland, USA
| | - Wendy L Bennett
- Johns Hopkins School of Medicine, Division of General Internal Medicine, Baltimore, Maryland, USA
- Johns Hopkins University, Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore, Maryland, USA
| | - Jeanne M Clark
- Johns Hopkins School of Medicine, Division of General Internal Medicine, Baltimore, Maryland, USA
- Johns Hopkins University, Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore, Maryland, USA
| | - Kimberly A Gudzune
- Johns Hopkins School of Medicine, Division of General Internal Medicine, Baltimore, Maryland, USA
- Johns Hopkins University, Welch Center for Prevention, Epidemiology, and Clinical Research, Baltimore, Maryland, USA
| |
Collapse
|
17
|
LaRose JG, Gorin AA, Fava JL, Bean MK, Lanoye A, Robinson E, Carey K. Using motivational interviewing to enhance emerging adults' engagement in weight loss: The Live Well RVA pilot randomized clinical trial. Obes Sci Pract 2020; 6:460-472. [PMID: 33082988 PMCID: PMC7556426 DOI: 10.1002/osp4.435] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 05/07/2020] [Accepted: 05/10/2020] [Indexed: 11/15/2022] Open
Abstract
Background Emerging adults (ages 18–25) are at high risk for overweight/obesity, yet traditional adult behavioural weight loss (BWL) interventions do not meet the needs of individuals at this developmental stage. Motivational interviewing (MI) is an evidence‐based approach to promote behaviour change but has not been tested for weight loss in this population. The study aimed to test the feasibility and preliminary efficacy of an MI‐enhanced weight loss programme to promote engagement, retention and weight loss in emerging adults. Methods Emerging adults with overweight/obesity (N = 47, 81% female, 47% racial/ethnic minority, body mass index [BMI] = 33.2 ± 4.6 kg/m2) were randomized to either standard BWL or MI‐enhanced BWL (MIBWL). Weight was assessed objectively at baseline and posttreatment (3 months). Engagement (in‐person session attendance [weeks 1 and 2], online self‐monitoring [weeks 3–12] and online content viewing [weeks 3–12]) was tracked throughout the program. Results Though results did not reach the level of statistical significance, participants in MIBWL demonstrated greater programme engagement (77% vs. 61.0%, p = .11; Cohen d = .48), retention (71% vs. 48.0%, p = .10; Cohen h = .47) and intent‐to‐treat weight loss (−3.3% vs. −2.2%, p = .37; Cohen d = .26) compared with those in BWL. Conclusions Effect sizes suggest that MI might be a viable approach to enhance engagement and retention in weight loss programmes targeting emerging adults. This finding is meaningful, given the documented challenges with engagement and retention in this vulnerable population and the relationship between engagement and better weight loss outcomes. The results of this small pilot study support efforts to replicate these findings within the context of a fully powered trial.
Collapse
Affiliation(s)
- Jessica Gokee LaRose
- Department of Health Behavior and Policy Virginia Commonwealth University School of Medicine Richmond Virginia USA
| | - Amy A Gorin
- Department of Psychological Sciences University of Connecticut Mansfield Connecticut USA.,Institute for Collaboration on Health, Intervention, and Policy University of Connecticut Mansfield Connecticut USA
| | - Joseph L Fava
- Weight Control and Diabetes Research Center The Miriam Hospital Providence Rhode Island USA
| | - Melanie K Bean
- Department of Pediatrics Children's Hospital of Richmond at Virginia Commonwealth University Richmond Virginia USA
| | - Autumn Lanoye
- Department of Health Behavior and Policy Virginia Commonwealth University School of Medicine Richmond Virginia USA
| | - Elizabeth Robinson
- Department of Pediatrics Children's Hospital of Richmond at Virginia Commonwealth University Richmond Virginia USA.,Summit Emotional Health Richmond Virginia USA
| | - Kate Carey
- Department of Behavioral and Social Sciences Brown University School of Public Health Providence Rhode Island USA
| |
Collapse
|
18
|
Frie K, Hartmann-Boyce J, Jebb SA, Aveyard P. Effectiveness of a self-regulation intervention for weight loss: A randomized controlled trial. Br J Health Psychol 2020; 25:652-676. [PMID: 32489005 DOI: 10.1111/bjhp.12436] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Revised: 05/05/2020] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To evaluate effectiveness and acceptability of a novel intervention, based on self-regulation theory, for weight loss. DESIGN A two-arm parallel group design was employed. METHODS Adult participants with a BMI ≥ 30 kg/m2 and the aim to lose weight were recruited and randomized to either a control or intervention group. Both groups were asked to weigh themselves daily for eight weeks. The intervention group was encouraged to use a weight tracking app, and complete daily and weekly questionnaires to prompt action planning, reflection, and evaluation of actions. Participants chose daily actions from a menu of 53 behaviours. The primary outcome was weight change after 8 weeks, assessed using linear mixed effects models. At follow-up, 20 intervention group participants were interviewed regarding their experiences in the trial. RESULTS 100 participants were recruited, and 98% were followed up at 8 weeks. Mean weight loss was -4.18 kg (SD = 3.84) in the intervention compared to -1.01 kg (SD = 2.67) in the control group; the adjusted difference was -3.20 kg (95% CI -4.49, -1.92). Participants rated the intervention's usefulness as 8.25 (SD = 2.04) on a scale from 1 to 10. Adherence was a significant independent predictor of weight loss success (-1.54 kg per one SD, 95% CI -2.16, -0.93), but not a mediator of the intervention effect. Participants reported that the intervention enabled them to experiment with and identify effective weight loss actions. CONCLUSIONS Guiding participants through the self-regulation process was feasible, acceptable to participants, and led to significantly greater short-term weight loss than unguided self-weighing.
Collapse
Affiliation(s)
- Kerstin Frie
- Nuffield Department of Primary Care Health Sciences, University of Oxford, UK
| | | | - Susan A Jebb
- Nuffield Department of Primary Care Health Sciences, University of Oxford, UK
| | - Paul Aveyard
- Nuffield Department of Primary Care Health Sciences, University of Oxford, UK
| |
Collapse
|
19
|
Ashton LM, Sharkey T, Whatnall MC, Haslam RL, Bezzina A, Aguiar EJ, Collins CE, Hutchesson MJ. Which behaviour change techniques within interventions to prevent weight gain and/or initiate weight loss improve adiposity outcomes in young adults? A systematic review and meta-analysis of randomized controlled trials. Obes Rev 2020; 21:e13009. [PMID: 32064761 DOI: 10.1111/obr.13009] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 01/30/2020] [Accepted: 01/30/2020] [Indexed: 12/17/2022]
Abstract
Young adulthood is associated with the highest rate of weight gain compared with any other adult age group. This review evaluates the effectiveness of interventions with adiposity outcomes among young adults and identifies which behaviour change techniques (BCTs) are most effective. BCT utilization was assessed using Michie's 93-item BCT Taxonomy v1. Six electronic databases were searched for randomized controlled trials assessing change in adiposity in young adults (17-35 years) until December 2019; identifying 21,582 articles. Fifty-one studies were included. Meta-analyses for weight (n=19 studies), body mass index (BMI) (n=20 studies), and waist circumference (n=10 studies) demonstrated no significant between-group differences at ≤3 or >3 months. There were no differences between interventions focusing on weight loss or weight-gain prevention. Narrative synthesis showed significant between-group differences in weight change, favouring the intervention in 14/43 (33%) studies. In studies assessing BMI and waist circumference, this was 31% (11/36) and 25% (4/16). Two BCTs had a percentage effectiveness ratio >50% in weight loss interventions; social support (unspecified) and self-monitoring behaviour, and one in weight-gain prevention interventions; and goal-setting (outcome). Findings demonstrate initial potential for these types of BCTs and can help build cumulative evidence towards delivering effective, cost-efficient, and replicable interventions.
Collapse
Affiliation(s)
- Lee M Ashton
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia.,Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, Callaghan, Australia
| | - Thomas Sharkey
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia.,Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, Callaghan, Australia
| | - Megan C Whatnall
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia.,Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, Callaghan, Australia
| | - Rebecca L Haslam
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia.,Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, Callaghan, Australia
| | - Aaron Bezzina
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia.,Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, Callaghan, Australia
| | - Elroy J Aguiar
- Department of Kinesiology, College of Education, University of Alabama, Tuscaloosa, Alabama
| | - Clare E Collins
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia.,Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, Callaghan, Australia
| | - Melinda J Hutchesson
- School of Health Sciences, Faculty of Health and Medicine, University of Newcastle, Callaghan, Australia.,Priority Research Centre in Physical Activity and Nutrition, University of Newcastle, Callaghan, Australia
| |
Collapse
|
20
|
Hernandez Roman J, Patel S. Why Do Lifestyle Recommendations Fail in Most Patients with Nonalcoholic Fatty Liver Disease? Gastroenterol Clin North Am 2020; 49:95-104. [PMID: 32033766 DOI: 10.1016/j.gtc.2019.10.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Nonalcoholic fatty liver disease has been recognized as a major health burden. The efficacy and safety profile of pharmacotherapy in the treatment of nonalcoholic fatty liver disease remains uncertain; therefore, lifestyle modification is the first line of treatment. Based on available data, patients should optimally achieve at least a 5% to 10% weight reduction for histologic improvement. There is no clear consensus on the optimal diet or exercise regimen. Sustainability of any intervention is key to success; however, compliance has been a major issue in clinical trials. This finding underscores the importance of multidisciplinary strategies to achieve targeted weigh loss.
Collapse
Affiliation(s)
- Jose Hernandez Roman
- Department of Internal Medicine, Virginia Commonwealth University, Richmond, VA, USA
| | - Samarth Patel
- Division of Gastroenterology and Hepatology, Hunter Holmes McGuire VA Medical Center, Richmond, VA, USA; Division of Gastroenterology and Hepatology, Virginia Commonwealth University, 1200 E Broad St, Richmond, VA 23298-0342, USA.
| |
Collapse
|
21
|
Frie K, Hartmann-Boyce J, Jebb SA, Aveyard P. Testing the effectiveness of a weight loss intervention to enhance self-regulation in adults who are obese: protocol for a randomised controlled trial. BMJ Open 2019; 9:e031572. [PMID: 31818839 PMCID: PMC6924834 DOI: 10.1136/bmjopen-2019-031572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
INTRODUCTION Previous trials finding an effect of self-monitoring on weight loss have considered the effect to be mediated by self-regulatory processes. However, a qualitative think-aloud study asking people to record thoughts and feelings during weighing showed that self-regulation occurs only rarely without further instruction. The aim of this trial is to test a novel intervention guiding people through the self-regulatory processes to see whether it facilitates weight loss. METHODS AND ANALYSES A parallel group, randomised controlled trial will be conducted to test the concept that a self-regulation intervention for weight loss increases weight loss compared with daily self-weighing without further support. One hundred participants with a body mass index ≥30 kg/m2 will be randomised to either the control or intervention group. The control group will be asked to weigh themselves daily for 8 weeks, the intervention group will be encouraged to follow the self-regulation intervention. They will be prompted to weigh daily, track their weight using an app, plan daily actions for weight loss and reflect on their action plans on a weekly basis. This self-regulation cycle will allow them to experiment with different weight loss strategies and identify effective and sustainable actions. Primary and process outcomes will be measured at baseline and 8 weeks' follow-up. Linear regression analysis of the primary outcome, weight change, will assess the early effectiveness of the intervention. The process outcomes liking, perceived effectiveness, as well as usage and barriers with regard to the self-regulation intervention, will be assessed through qualitative analysis of follow-up interviews and quantitative analysis of adherence rates and responses to a final questionnaire. ETHICS AND DISSEMINATION This trial was reviewed and approved by the NHS National Research Ethics Committee and the Health Research Authority (reference number: 18/SC/0482). The findings of the trial will be published in peer reviewed journals and presented at conferences. TRIAL REGISTRATION NUMBER ISRCTN14148239, prerecruitment. PROTOCOL VERSION Version 1.1, 7 December 2018.
Collapse
Affiliation(s)
- Kerstin Frie
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, Oxfordshire, UK
| | - Jamie Hartmann-Boyce
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, Oxfordshire, UK
| | - Susan A Jebb
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, Oxfordshire, UK
| | - Paul Aveyard
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, Oxfordshire, UK
| |
Collapse
|
22
|
Frie K, Hartmann-Boyce J, Pilbeam C, Jebb S, Aveyard P. Analysing self-regulatory behaviours in response to daily weighing: a think-aloud study with follow-up interviews. Psychol Health 2019; 35:16-35. [PMID: 31198059 PMCID: PMC6961301 DOI: 10.1080/08870446.2019.1626394] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Objective: To examine the extent to which people who are trying to lose weight naturally self-regulate in response to self-weighing and to identify barriers to self-regulation. Design/Main Outcome Measures: Twenty-four participants, who were overweight and trying to lose weight, recorded their thoughts during daily weighing for eight weeks. Semi-structured follow-up interviews assessed participant experiences. Qualitative analysis identified steps of the self-regulation process and barriers to self-regulation. Exploratory regression analysis assessed the relationship between the self-regulation steps and weight loss. Results: On 90% of 498 occasions, participants compared their weight measurement to an expectation or goal, and on 58% they reflected on previous behaviour. Action planning only occurred on 20% of occasions, and specific action planning was rare (6%). Only specific action planning significantly predicted weight loss (−2.1 kg per 1 SD increase in the predictor, 95% CI = −3.9, −0.3). Thematic analysis revealed that barriers to the interpretation of daily weight changes were difficulties in understanding day-to-day fluctuations, losing the overview of trends, forgetting to weigh, and forgetting previous measurements. Conclusion: Specific action planning can lead to weight loss, but is rare in a naturalistic setting. Barriers to self-regulation relate to the interpretation of weight changes.
Collapse
Affiliation(s)
- Kerstin Frie
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Jamie Hartmann-Boyce
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Caitlin Pilbeam
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Susan Jebb
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| | - Paul Aveyard
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, United Kingdom
| |
Collapse
|
23
|
Ross KM, Eastman A, Wing RR. Accuracy of Self-Report Versus Objective Smart-Scale Weights During a 12-Week Weight Management Intervention. Obesity (Silver Spring) 2019; 27:385-390. [PMID: 30703282 PMCID: PMC6410568 DOI: 10.1002/oby.22400] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 11/26/2018] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Greater frequency of self-weighing has been associated with greater weight loss in weight management interventions, but little is known regarding the accuracy of self-reported weight data. METHODS Agreement between objective smart-scale and self-reported weight data was assessed in 74 adults (age = 50.7 years; BMI = 31.2 kg/m2 ) enrolled in a 12-week, Internet-based weight management program. Participants were asked to self-weight daily using a study-provided smart scale and to self-report weights via the study website. RESULTS There was strong agreement between smart-scale and self-reported weight values (intraclass correlation = 0.982) but only moderate agreement regarding frequency of self-weighing assessed via each method (κ = 0.491; P < 0.0001). Greater self-weighing frequency was associated with greater weight loss across measures (all P < 0.001). Compared with days when participants did both, weights were 0.66 kg higher on days when participants self-weighed via the smart scale but did not self-report weight (8% of days) and 0.58 kg higher on days when they self-reported weight but did not self-weigh via the smart scale (4% of days; all P < 0.0001). CONCLUSIONS Results suggest that self-reported weight values are similar to smart-scale measurements; however, either method alone may underestimate self-weighing frequency. Furthermore, missing self-weighing data should not be treated as ignorable because weights may be higher than those observed on nonmissing days.
Collapse
Affiliation(s)
- Kathryn M. Ross
- Department of Clinical & Health Psychology, College of
Public Health & Health Professions, University of Florida
- Department of Psychiatry and Human Behavior, Alpert Medical
School of Brown University & The Miriam Hospital
| | - Abraham Eastman
- Department of Clinical & Health Psychology, College of
Public Health & Health Professions, University of Florida
| | - Rena R. Wing
- Department of Psychiatry and Human Behavior, Alpert Medical
School of Brown University & The Miriam Hospital
| |
Collapse
|
24
|
Moran LJ, Noakes M, Clifton P, Buckley J, Brinkworth G, Thomson R, Norman RJ. Predictors of Lifestyle Intervention Attrition or Weight Loss Success in Women with Polycystic Ovary Syndrome Who Are Overweight or Obese. Nutrients 2019; 11:nu11030492. [PMID: 30813612 PMCID: PMC6470873 DOI: 10.3390/nu11030492] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2019] [Revised: 02/06/2019] [Accepted: 02/19/2019] [Indexed: 01/12/2023] Open
Abstract
Background/objectives: Polycystic ovary syndrome (PCOS) is a common condition in reproductive-aged women. Weight management is a first-line treatment for PCOS according to international evidence-based guidelines. However, the factors associated with attrition or success in weight loss interventions are not known for women with PCOS. The objective of this study was to identify characteristics associated with attrition and weight loss success in women with PCOS and overweight or obesity undergoing weight loss interventions. Methods: Four randomised controlled clinical weight loss trials comprising energy restricted diets and/or exercise interventions of 2⁻8 months duration. The interventions were conducted over 2001⁻2007 in outpatient clinical research centres with n = 221 premenopausal women with PCOS and overweight/obesity recruited through community advertisement. The main outcome measures were attrition and ≥5% weight loss at 2 months and study completion. Results: Weight loss was 5.7 ± 2.9 kg at 2 months and 7.4 ± 5.3 kg after study completion (p < 0.001). Attrition was 47.1% and ≥5% weight loss occurred in 62.5% and 62.7% of women at 2 months and study completion respectively. Baseline depressive symptoms (OR 1.07 95% CI 0.88, 0.96, p = 0.032) and lower appointment attendance by 2 months (OR 0.92 95% CI 0.88, 0.96, p < 0.001) were independently associated with attrition. Lower appointment attendance over the whole study was independently associated with not achieving ≥5% weight loss at study completion (OR 0.95 95% CI 0.92, 0.99, p = 0.020). Conclusions: Despite high attrition, successful weight loss was achieved by 63% of women with PCOS in a clinical research setting. Higher baseline depressive symptoms were associated with greater attrition and higher appointment attendance was associated with lower attrition and greater weight loss success. These finding have implications for development of successful weight management programs in PCOS.
Collapse
Affiliation(s)
- Lisa J Moran
- School of Medicine, Robinson Research Institute, University of Adelaide, Adelaide, SA 5000, Australia.
- Monash Centre for Health Research and Implementation, School of Public Health and Preventive Medicine, Monash University, Melbourne, Vic 3163, Australia.
| | - Manny Noakes
- CSIRO Division of Health Sciences and Nutrition, Australia.
| | - Peter Clifton
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5000, Australia.
| | - Jon Buckley
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5000, Australia.
| | | | - Rebecca Thomson
- Alliance for Research in Exercise, Nutrition and Activity (ARENA), Sansom Institute for Health Research, University of South Australia, Adelaide, SA 5000, Australia.
| | - Robert J Norman
- School of Medicine, Robinson Research Institute, University of Adelaide, Adelaide, SA 5000, Australia.
- Fertility SA, Adelaide, SA 5000, Australia.
| |
Collapse
|
25
|
LaRose JG, Neiberg RH, Evans EW, Tate DF, Espeland MA, Gorin AA, Perdue L, Hatley K, Lewis CE, Robichaud E, Wing RR. Dietary outcomes within the study of novel approaches to weight gain prevention (SNAP) randomized controlled trial. Int J Behav Nutr Phys Act 2019; 16:14. [PMID: 30704533 PMCID: PMC6357348 DOI: 10.1186/s12966-019-0771-z] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Accepted: 01/15/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Young adults (YA) are at high-risk for unhealthy dietary behaviors and weight gain. The Study of Novel Approaches to Weight Gain Prevention (SNAP) Trial demonstrated that two self-regulation approaches were effective in reducing weight gain over 2 years compared with control. The goal of this analysis was to examine effects of intervention on dietary outcomes and the association of diet changes with weight change. METHODS Participants were 599 YA, age 18-35 years, BMI 21.0-30.0 kg/m2 (27.4 ± 4.4 years; 25.4 ± 2.6 kg/m2; 22% men; 73% non-Hispanic White), who were recruited in Providence, RI and Chapel Hill, NC and randomized to self-regulation with Small Changes (SC), self-regulation with Large Changes (LC) or Control (C). SC and LC emphasized frequent self-weighing to cue behavior changes (small daily changes vs. periodic large changes) and targeted high-risk dietary behaviors. Diet and weight were assessed at baseline, 4 months and 2 years. RESULTS LC and SC had greater decreases in energy intake than C at 4 months but not 2 years. LC had the greatest changes in percent calories from fat at 4 months, but differences were attenuated at 2 years. No differences in diet quality were observed. Across conditions, increased total energy consumption, fast food, meals away from home, and binge drinking, and decreased dietary quality and breakfast consumption were all associated with weight gain at 2 years. CONCLUSIONS This study suggests the need to strengthen interventions to produce longer term changes in dietary intake and helps to identify specific behaviors associated with weight gain over time in young adults. TRIAL REGISTRATION Clinicaltrials.gov # NCT01183689 , registered August 18, 2010.
Collapse
Affiliation(s)
- Jessica Gokee LaRose
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, 830 E. Main St, 4th Floor, Richmond, VA, 23219, USA.
| | - Rebecca H Neiberg
- Department of Biostatistics and Data Science, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - E Whitney Evans
- Weight Control and Diabetes Research Center at The Miriam Hospital, Providence, RI, USA.,Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA
| | - Deborah F Tate
- Lineberger Cancer Center and Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Mark A Espeland
- Department of Biostatistics and Data Science, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Amy A Gorin
- University of Connecticut, Institute for Collaboration on Health, Intervention, and Policy, Storrs, CT, USA
| | - Letitia Perdue
- Department of Biostatistics and Data Science, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Karen Hatley
- Lineberger Cancer Center and Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Cora E Lewis
- Department of Epidemiology, School of Public Health, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Erica Robichaud
- Weight Control and Diabetes Research Center at The Miriam Hospital, Providence, RI, USA
| | - Rena R Wing
- Weight Control and Diabetes Research Center at The Miriam Hospital, Providence, RI, USA.,Department of Psychiatry and Human Behavior, Alpert Medical School of Brown University, Providence, RI, USA
| | | |
Collapse
|
26
|
Gorin AA, Gokee LaRose J, Espeland MA, Tate DF, Jelalian E, Robichaud E, Coward P, Hatley KE, Garcia KR, Lang W, Bahnson J, Lewis CE, Wing RR. Eating pathology and psychological outcomes in young adults in self-regulation interventions using daily self-weighing. Health Psychol 2018; 38:143-150. [PMID: 30550313 DOI: 10.1037/hea0000689] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
OBJECTIVE Self-regulation interventions encouraging daily weighing prevent weight gain in young adults; however, concerns have been raised that such interventions may have undesirable effects on eating pathology, depression, and health-related quality of life (HRQL). The present study examined whether self-regulation interventions and self-weighing frequency were associated with these indices in normal weight individuals and those with overweight or obesity. METHODS Young adults (n = 599), 18-35 years with a body mass index (BMI) 21.0-30.9 kg/m² were randomized to control, self-regulation with small changes (SC) or self-regulation with large changes (LC). Interventions taught frequent self-weighing to guide behavioral changes. SC prescribed daily small decreases in intake and increases in physical activity. LC prescribed a 5- to 10-lb weight loss to buffer against anticipated gains. Psychological indices were assessed at baseline and periodically over 2 years of follow-up. RESULTS There was no evidence that the interventions increased depressive symptoms or compensatory behaviors or decreased HRQL relative to control. LC increased flexible and rigid control and SC decreased disinhibition. Results did not differ by weight status with the exception of rigid control; here, differences between LC and the other conditions were smaller among those with BMI ≥ 25. Greater self-weighing frequency over time was associated with increases in flexible and rigid control, dietary restraint, and improvements in HRQL. CONCLUSIONS The self-regulation interventions and increases in self-weighing had no untoward effects. Encouraging weight gain prevention in young adults through frequent weighing and self-regulation appears to be safe for normal weight young adults and those with overweight. (PsycINFO Database Record (c) 2019 APA, all rights reserved).
Collapse
Affiliation(s)
- Amy A Gorin
- Institute for Collaboration on Health, Intervention, and Policy
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
27
|
Ee C, Smith C, Costello M, MacMillan F, Moran L, Baylock B, Teede H. Feasibility and acceptability of a proposed trial of acupuncture as an adjunct to lifestyle interventions for weight loss in Polycystic Ovary Syndrome: a qualitative study. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:298. [PMID: 30409195 PMCID: PMC6225727 DOI: 10.1186/s12906-018-2358-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Accepted: 10/24/2018] [Indexed: 12/28/2022]
Abstract
BACKGROUND Polycystic Ovary Syndrome (PCOS) is a common female reproductive disorder with multiple manifestations. Weight management is a key therapeutic goal. Acupuncture is a potential adjunctive weight loss treatment in non-PCOS populations. We aimed to engage patients in co-design and assess the feasibility and acceptability of methods for a randomised controlled trial (RCT) on acupuncture and telephone-based health coaching for weight management in overweight or obese women with PCOS using qualitative methods. METHODS We recruited women who had PCOS and were aged 18-45 years and with a body mass index of 25 kg/m2 and over, using social media. Two face-to-face focus group meetings and three semi-structured telephone interviews were conducted (n = 10). We analysed data using thematic analysis and aimed to compare and contrast motivations for joining the trial between women who were actively trying to conceive (n = 7) and not trying to conceive (n = 3). Attitudes to, knowledge and experiences of acupuncture; perceptions and attitudes towards the interventions in the RCT (real acupuncture, sham acupuncture and telephone-based health coaching); the outcomes of importance; and barriers and facilitators to successful trial recruitment and retention were collected. RESULTS Women were both acupuncture-naive and acupuncture-experienced. Overall, attitudes towards acupuncture were positive, and the trial design was acceptable with appointment flexibility requested. Ideal enrolment time, if women were trying to conceive, was six months prior to conception. Women supported three-month intervention and the use of sham acupuncture as a control. Financial incentives were not believed to be necessary, and women spoke of altruistic intentions in enrolling for such a trial. Women who were trying to conceive voiced a need for support from their family, health coaches, and peers. The telephone-based health coaching offered welcome support and accountability, noted as possible facilitators of weight loss. CONCLUSIONS Our findings show that acupuncture is a likely acceptable adjunct to lifestyle interventions for weight loss in PCOS, and that a sham-controlled trial is feasible and acceptable to PCOS women. Further research is required in order to evaluate the efficacy of acupuncture together with lifestyle for weight management in PCOS.
Collapse
|
28
|
Bramante CT, Clark JM, Gudzune KA. Access to a scale and self-weighing habits among public housing residents. Clin Obes 2018; 8:258-264. [PMID: 29852523 PMCID: PMC6411044 DOI: 10.1111/cob.12255] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 04/09/2018] [Accepted: 04/11/2018] [Indexed: 11/27/2022]
Abstract
Having access to a scale is essential for individuals to engage in self-weighing; however, few studies examine scale access, particularly among low-income individuals. Our objectives were to (i) determine how many public housing residents have access to a scale and (ii) describe their self-weighing habits. We conducted a cross-sectional survey of public housing residents in Baltimore, MD, from August 2014 to August 2015. Participants answered questions about their access to a scale ('yes'/'no') and daily self-weighing habits ('no scale/never or hardly ever' vs. 'some/about half/much of the time/always'). We used t-tests or chi-square tests to examine the association of scale access with respondent characteristics. Overall, 266 adults participated (48% response rate). Mean age was 45 years with 86% women, 95% black and 54% with obesity. Only 32% had access to a scale; however, 78% of those with this access reported engaging in some self-weighing. Residents who lacked access to a scale were younger (P = 0.03), and more likely to be unemployed/disabled (P = 0.01) or food insecure (P < 0.01). While few public housing residents have access to a scale, those who do report daily self-weighing with some regularity. Financial hardship may influence scale access in this population, as potential proxies of this status were associated with no scale access.
Collapse
Affiliation(s)
- C T Bramante
- Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - J M Clark
- Division of General Internal Medicine, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
- Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
- Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - K A Gudzune
- Welch Center for Prevention, Epidemiology, and Clinical Research, Johns Hopkins Medical Institutions, Baltimore, Maryland, USA
| |
Collapse
|
29
|
Crane MM, Gavin K, Wolfson J, Linde JA. How Accurate are Recalls of Self-Weighing Frequency? Data from a 24-Month Randomized Trial. Obesity (Silver Spring) 2018; 26:1296-1302. [PMID: 30070045 PMCID: PMC6107396 DOI: 10.1002/oby.22239] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 05/19/2018] [Indexed: 11/06/2022]
Abstract
INTRODUCTION Self-weighing is an important component of self-monitoring during weight loss. However, methods of measuring self-weighing frequency need to be validated. This analysis compared self-reported and objective weighing frequency. METHODS Data came from a 24-month randomized controlled trial. Participants received 12 months of a behavioral weight-loss program and were randomly assigned to (1) daily self-weighing, (2) weekly weighing, or (3) no weighing (excluded from analysis). Objective weighing frequency was measured by Wi-Fi enabled scales, and self-reported weighing frequency was assessed every 6 months by questionnaire. Objective weights were categorized to match the scale of the self-report measure. RESULTS At 12 months, there was 80.8% agreement between self-reported and objective weighing frequency (weighted kappa = 0.67; P < 0.001). At 24 months, agreement decreased to 48.5% (kappa = 0.27; P < 0.001). At both time points in which disagreements occurred, self-reported frequencies were generally greater than objectively assessed weighing. Both self-reported and objectively assessed weighing frequency was associated with weight loss at 12 and 24 months (P < 0.001). CONCLUSIONS Self-reported weighing frequency is modestly correlated with objective weighing frequency; however, both are associated with weight change over time. Objective assessment of weighing frequency should be used to avoid overestimating actual frequency.
Collapse
Affiliation(s)
- Melissa M. Crane
- Department of Preventive Medicine, Rush University Medical Center,
Chicago, Illinois, USA
| | - Kara Gavin
- Department of Preventive Medicine, Northwestern University Medical
School, Chicago, Illinois, USA
| | - Julian Wolfson
- Division of Biostatistics, School of Public Health, University of
Minnesota, Minneapolis, Minnesota, USA
| | - Jennifer A. Linde
- Division of Epidemiology & Community Health, School of
Public Health, University of Minnesota, Minneapolis, MN, USA
| |
Collapse
|
30
|
Eckert M, Ebert DD, Lehr D, Sieland B, Berking M. Does SMS-Support Make a Difference? Effectiveness of a Two-Week Online-Training to Overcome Procrastination. A Randomized Controlled Trial. Front Psychol 2018; 9:1103. [PMID: 30026713 PMCID: PMC6042057 DOI: 10.3389/fpsyg.2018.01103] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Accepted: 06/11/2018] [Indexed: 11/13/2022] Open
Abstract
The primary purpose of this randomized controlled trial (RCT) was to evaluate the efficacy of an unguided, 2-week internet-based training program to overcome procrastination, called ON.TOP. Because adherence is a typical problem among individuals who tend to procrastinate, especially with internet-based interventions, the secondary purpose of the present study was to investigate whether adding SMS support increases subjects’ frequency of engagement in training. In a three-armed RCT (N = 161), the effects of the intervention alone and intervention with daily SMS-support were compared to a waiting list control condition in a sample of students. The primary outcome of interest was procrastination. The secondary outcome of interest was the extent of training behavior. Baseline (T0), immediate post-treatment (T1) and 8-week post-treatment (T2) assessments were conducted. Results indicated that procrastination decreased significantly only with intervention group with daily SMS support, relative to control. Moreover, incorporating SMS support also may enhance extent of training behavior.
Collapse
Affiliation(s)
- Marcus Eckert
- Institute of Psychology, Leuphana University of Lüneburg, Lüneburg, Germany
| | - David D Ebert
- Institute of Psychology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Dirk Lehr
- Institute of Psychology, Leuphana University of Lüneburg, Lüneburg, Germany
| | - Bernhard Sieland
- Institute of Psychology, Leuphana University of Lüneburg, Lüneburg, Germany
| | - Matthias Berking
- Institute of Psychology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| |
Collapse
|
31
|
Martin CL, Tate DF, Valle CG. Nonadherence to daily self-weighing and activity tracking is associated with weight fluctuations among African American breast cancer survivors. PLoS One 2018; 13:e0199751. [PMID: 29944706 PMCID: PMC6019092 DOI: 10.1371/journal.pone.0199751] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2017] [Accepted: 06/13/2018] [Indexed: 11/19/2022] Open
Abstract
INTRODUCTION Daily self-weighing (DSW) and daily activity tracking (DAT) are useful strategies for preventing weight gain among African American breast cancer survivors. However, self-monitoring behaviors vary over time, increasing risk of weight gain. This study explored the association of nonadherence to DSW and DAT with corresponding weight fluctuations among African American breast cancer survivors. METHODS Using data from a 6-month randomized controlled trial, we conducted a secondary data analysis among women randomized into a DSW group (n = 13) and a DSW+DAT group (n = 11). DSW and DAT were captured from wireless scale and activity tracker data. Nonadherence to DSW was defined as one or more days without a weight measurement, and nonadherence to DAT was defined as one or more days without activity tracking. Generalized estimating equations were used to examine weight fluctuations in relation to nonadherence to DSW and DAT. Data analysis occurred from September 2016-April 2017. RESULTS Over the 6-month study period, women provided 119.2 ± 46.0 weight measurements and 121.9 ± 53.2 days of physical activity tracking. Nonadherence to DSW was associated with weight fluctuations. For every 1-day increase in nonadherence to DSW, weight increased by 0.031 kg (95% CI: 0.012, 0.050; p<0.01). Additionally, during periods of DSW and DAT weight decreased by 0.028 kg (95% CI: -0.042, -0.014; p<0.001) and 0.017 kg (95% CI: -0.030; -0.004) respectively. CONCLUSIONS Our findings suggest that nonadherence to DSW was associated with weight gain among breast cancer survivors. Weight loss was enhanced during periods of DSW and DAT.
Collapse
Affiliation(s)
- Chantel L. Martin
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States of America
| | - Deborah F. Tate
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States of America
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States of America
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, United States of America
| | - Carmina G. Valle
- Department of Nutrition, Gillings School of Global Public Health, University of North Carolina, Chapel Hill, NC, United States of America
- Lineberger Comprehensive Cancer Center, University of North Carolina, Chapel Hill, NC, United States of America
| |
Collapse
|
32
|
Health behaviours in emerging adulthood: Their relationship with perceived maternal and paternal parental attitudes and the mediating role of self-efficacy. HEALTH PSYCHOLOGY REPORT 2017. [DOI: 10.5114/hpr.2018.71202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
<b>Background</b><br />
The present research examined the mediating role of self-efficacy in the association between perceived maternal and paternal parental attitudes and health behaviours of males and females in emerging adulthood. Parental attitudes shape children’s self-esteem, positive self-image, and self-competence. This may affect their physical health and health behaviours throughout their lives.<br />
<br />
<b>Participants and procedure</b><br />
A total of 147 (mean age: 19.70, SD = 0.85, 68.7% females) participants took part in the study. They completed several questionnaires measuring health behaviours, perceived parental attitudes, and self-efficacy: the Inventory of Health Behaviours, the Retrospective Assessment of Parental Attitude, and the General Self-Efficacy Scale.<br />
<br />
<b>Results</b><br />
We found that that female participants exhibited healthier eating habits but lower self-efficacy than male participants did. Accepting and autonomy granting maternal and paternal parental attitudes predicted a positive health attitude (of both male and female participants), preventive behaviours (of male participants), and healthy eating habits (of male participants). As predicted, emerging adults’ self-efficacy mediated the relationship between their health behaviours and perceived parental attitudes. However, the mediation patterns were different for female and male participants.<br />
<br />
<b>Conclusions</b><br />
The quality of perceived parental attitudes and self-efficacy are important for health-related lifestyle choices among emerging adults. Mothers and fathers may play different roles in the formation of health behaviours.
Collapse
|
33
|
Abstract
PURPOSE OF REVIEW Emerging adulthood (age 18-25) represents a critical period for weight control: rate of weight gain is greatest during these years and the prevalence of overweight and obesity is estimated to be at least 40% among emerging adults. Unique behavioral, psychosocial, and cognitive risk factors among this population must be specifically addressed within weight management programs. We review extant treatment approaches, including lessons learned from the nascent literature specifically targeting this population. Lastly, we provide suggestions to inform future work in this area. RECENT FINDINGS The EARLY consortium comprises seven clinical trials targeting weight control in young adults age 18-35. Though these studies encompass a broader age range, two of the trials enrolled large numbers of 18-25-year-olds. Results from these trials and other recent pilot trials provide a foundation for next steps with respect to developing weight management interventions for emerging adults. The design of targeted weight control approaches for emerging and young adults has contributed to improved outcomes for this high-risk population. However, suboptimal engagement and variability in response pose challenges. Identifying and intervening on individual-level behavioral and psychological variables may enhance the effects of these adapted treatments.
Collapse
Affiliation(s)
- Autumn Lanoye
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, 830 East Main Street, Richmond, VA, 23219, USA
- Department of Psychology, Virginia Commonwealth University, 806 West Franklin Street Box 842018, Richmond, VA, 23284, USA
| | - Kristal L Brown
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, 830 East Main Street, Richmond, VA, 23219, USA
| | - Jessica G LaRose
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, 830 East Main Street, Richmond, VA, 23219, USA.
| |
Collapse
|
34
|
Crane MM, Lutes LD, Sherwood NE, Ward DS, Tate DF. Weight Loss Strategies Utilized in a Men's Weight Loss Intervention. HEALTH EDUCATION & BEHAVIOR 2017; 45:401-409. [PMID: 28956969 DOI: 10.1177/1090198117733025] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Men are underrepresented in weight loss programs and little is currently known about the weight loss strategies men prefer. This study describes the weight loss strategies used by men during a men-only weight loss program. At baseline, 3 months, and 6 months, participants reported how frequently they used 45 weight loss strategies including strategies frequently recommended by the program (i.e., mentioned during every intervention contact; e.g., daily self-weighing), strategies occasionally recommended by the program (i.e., mentioned at least once during the program; e.g., reduce calories from beverages), and strategies not included in the program (e.g., increase daily steps). At baseline participants ( N = 107, 44.2 years, body mass index = 31.4 kg/m2, 76.6% White) reported regularly using 7.3 ± 6.6 ( M ± SD) strategies. The intervention group increased the number of strategies used to 19.1 ± 8.3 at 3 months and 17.1 ± 8.4 at 6 months with no changes in the waitlist group. The intervention group reported increased use of most of the strategies frequently recommended by the program (4 of 5), nearly half of the strategies occasionally recommended by the program (10 of 24), and one strategy not included in the program (of 16) at 6 months. The intervention effect at 6 months was significantly mediated by the number of strategies used at 3 months. This study adds to what is known about men's use of weight loss strategies prior to and during a formal weight loss program and will help future program developers create programs that are tailored to men.
Collapse
Affiliation(s)
- Melissa M Crane
- 1 University of North Carolina at Chapel Hill, NC, USA.,2 University of Minnesota-Twin Cities, Minneapolis, MN, USA
| | - Lesley D Lutes
- 3 University of British Columbia, Kelowna, British Columbia, Canada
| | | | - Dianne S Ward
- 1 University of North Carolina at Chapel Hill, NC, USA
| | | |
Collapse
|
35
|
Jospe MR, Roy M, Brown RC, Williams SM, Osborne HR, Meredith-Jones KA, McArthur JR, Fleming EA, Taylor RW. The Effect of Different Types of Monitoring Strategies on Weight Loss: A Randomized Controlled Trial. Obesity (Silver Spring) 2017; 25:1490-1498. [PMID: 28703448 DOI: 10.1002/oby.21898] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 05/05/2017] [Accepted: 05/15/2017] [Indexed: 01/19/2023]
Abstract
OBJECTIVE To determine the effectiveness of various monitoring strategies on weight loss, body composition, blood markers, exercise, and psychosocial indices in adults with overweight and obesity following a 12-month weight loss program. METHODS Two hundred fifty adults with BMI ≥ 27 were randomized to brief, monthly, individual consults, daily self-monitoring of weight, self-monitoring of diet using MyFitnessPal, self-monitoring of hunger, or control over 12 months. All groups received diet and exercise advice, and 171 participants (68.4%) remained at 12 months. RESULTS No significant differences in weight, body composition, blood markers, exercise, or eating behavior were apparent between those in the four monitoring groups and the control condition at 12 months (all P ≥ 0.053). Weight differences between groups ranged from -1.1 kg (-3.8 to 1.6) to 2.2 kg (-1.0 to 5.3). However, brief support and hunger training groups reported significantly lower scores for depression (difference [95% CI]: -3.16 [-5.70 to -0.62] and -3.05 [-5.61 to -0.50], respectively) and anxiety (-1.84, [-3.67 to -0.02]) scores than control participants. CONCLUSIONS Although adding a monitoring strategy to diet and exercise advice did not further increase weight loss, no adverse effects on eating behavior were observed, and some monitoring strategies may even benefit mental health.
Collapse
Affiliation(s)
- Michelle R Jospe
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Melyssa Roy
- Department of Medicine, University of Otago, Dunedin, New Zealand
| | - Rachel C Brown
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
| | - Sheila M Williams
- Department of Preventive and Social Medicine, University of Otago, Dunedin, New Zealand
| | - Hamish R Osborne
- Department of Medicine, University of Otago, Dunedin, New Zealand
| | | | - Jenny R McArthur
- Department of Medicine, University of Otago, Dunedin, New Zealand
| | | | - Rachael W Taylor
- Department of Medicine, University of Otago, Dunedin, New Zealand
| |
Collapse
|
36
|
Rosenbaum DL, Espel HM, Butryn ML, Zhang F, Lowe MR. Daily self-weighing and weight gain prevention: a longitudinal study of college-aged women. J Behav Med 2017; 40:846-853. [PMID: 28689248 DOI: 10.1007/s10865-017-9870-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Accepted: 07/03/2017] [Indexed: 11/29/2022]
Abstract
Daily self-weighing has been suggested as an important factor for weight loss maintenance among samples with obesity. This study is a secondary analysis that examined daily self-weighing in association with weight and body composition outcomes over 2 years among young women with vulnerability for weight gain. Women (N = 294) of varying weight status completed self-weighing frequency questionnaires and weight was measured in the clinic at baseline, 6 months, 1, and 2 years; DXA scans were completed at baseline, 6 months and 2 years. Multilevel models examined the relationship between daily self-weighing (at any point in the study) and trajectories of BMI and body fat percentage. Daily self-weighing was associated with significant declines in BMI and body fat percent over time. Future research is needed to examine causal relations between daily self-weighing and weight gain prevention. Nonetheless, these data extend the possibility that daily self-weighing may be important for prevention of unwanted weight gain.
Collapse
Affiliation(s)
- Diane L Rosenbaum
- Department of Psychology, Drexel University, Philadelphia, PA, USA. .,Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, 3535 Market Street, Philadelphia, PA, 19104, USA.
| | - Hallie M Espel
- Department of Psychology, Drexel University, Philadelphia, PA, USA
| | - Meghan L Butryn
- Department of Psychology, Drexel University, Philadelphia, PA, USA
| | - Fengqing Zhang
- Department of Psychology, Drexel University, Philadelphia, PA, USA
| | - Michael R Lowe
- Department of Psychology, Drexel University, Philadelphia, PA, USA
| |
Collapse
|
37
|
LaRose JG, Tate DF, Lanoye A, Fava JL, Jelalian E, Blumenthal M, Caccavale LJ, Wing RR. Adapting evidence-based behavioral weight loss programs for emerging adults: A pilot randomized controlled trial. J Health Psychol 2017; 24:870-887. [PMID: 28810394 DOI: 10.1177/1359105316688951] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Emerging adults are at high risk of obesity but behavioral weight loss programs do not meet their needs. Emerging adults ( N = 52, age = 22.3 ± 2 years, body mass index = 34.2 ± 5.5 kg/m2, 46.2% non-Hispanic White) were randomly assigned to one of three behavioral weight loss programs adapted based on formative work: face-to-face behavioral weight loss, web-based behavioral weight loss, or web plus optional community sessions (Hybrid). Assessments occurred at 0 and 3 months. Engagement and self-monitoring were highest in Hybrid. Intent-to-treat weight losses were -2.8 ± 2.9 percent in face-to-face behavioral weight loss, -2.2 ± 4.5 percent in web-based behavioral weight loss, and 4.8 ± 4.9 percent in Hybrid. Percent achieving ⩾5 percent weight loss was highest in Hybrid (63%). Findings suggest potential for adapted behavioral weight loss to promote engagement and weight loss in emerging adults.
Collapse
Affiliation(s)
| | | | | | | | | | | | | | - Rena R Wing
- 3 The Miriam Hospital, USA.,4 Brown University, USA
| |
Collapse
|
38
|
Valle CG, Deal AM, Tate DF. Preventing weight gain in African American breast cancer survivors using smart scales and activity trackers: a randomized controlled pilot study. J Cancer Surviv 2016; 11:133-148. [PMID: 27631874 DOI: 10.1007/s11764-016-0571-2] [Citation(s) in RCA: 64] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2016] [Accepted: 08/30/2016] [Indexed: 11/28/2022]
Abstract
PURPOSE This study evaluated the feasibility and preliminary efficacy of two 6-month, self-regulation interventions that focused on daily self-weighing (DSW) and used objective monitoring and tailored feedback about weight (±activity), to prevent weight gain among African American breast cancer survivors. METHODS Participants (n = 35) were randomized to an intervention + activity monitoring (INT+), intervention (INT), or control (CON) group. Interventions included a wireless scale (±activity tracker) that transmitted objective data to a mobile app/website, emailed lessons, and tailored feedback based on objective weight (±activity data). Participants completed in-person and online assessments at baseline, 3 months, and 6 months. RESULTS Ninety-four percent of participants completed assessments at 3 months, and 97 % at 6 months. Median (IQR) weight change after 6 months was -0.9 % (-4.4-0.1) in the INT+ (p = 0.075; p = 0.067 vs. CON) and -0.2 % (-4.2-1.3) in the INT groups (p = 0.463; p = 0.357 vs. CON), versus a 0.2 % (-0.7-1.7) gain in the CON group. The proportion of INT+, INT, and CON participants that were at or below baseline weight was 72.7, 53.8, and 45.5 %, respectively (effect sizes d = 0.64, d = 0.18). Most INT+ participants weighed and wore trackers ≥5 days/week (INT+, 81.9 % vs. INT, 38.5 % vs. CON, 0 %; p < 0.0005; INT+, 72.7 %). Both intervention groups perceived DSW as positive, and 100 % would recommend the program to other breast cancer survivors. CONCLUSION An intervention focused on DSW as a self-monitoring strategy shows promise for preventing weight gain in breast cancer survivors. IMPLICATIONS FOR CANCER SURVIVORS Daily self-monitoring of weight and activity may be a feasible and accessible approach to promote weight gain prevention in breast cancer survivors. CLINICAL TRIAL REGISTRATION ClinicalTrials.gov, NCT02030353.
Collapse
Affiliation(s)
- Carmina G Valle
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA. .,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
| | - Allison M Deal
- Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Deborah F Tate
- Department of Health Behavior, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Lineberger Comprehensive Cancer Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.,Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| |
Collapse
|
39
|
Painter S, Ditsch G, Ahmed R, Hanson NB, Kachin K, Berger J. Retrofit Weight-Loss Outcomes at 6, 12, and 24 Months and Characteristics of 12-Month High Performers: A Retrospective Analysis. JMIR Mhealth Uhealth 2016; 4:e101. [PMID: 27549134 PMCID: PMC5011555 DOI: 10.2196/mhealth.5873] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 06/16/2016] [Accepted: 07/26/2016] [Indexed: 12/26/2022] Open
Abstract
Background Obesity is the leading cause of preventable death costing the health care system billions of dollars. Combining self-monitoring technology with personalized behavior change strategies results in clinically significant weight loss. However, there is a lack of real-world outcomes in commercial weight-loss program research. Objective Retrofit is a personalized weight management and disease-prevention solution. This study aimed to report Retrofit’s weight-loss outcomes at 6, 12, and 24 months and characterize behaviors, age, and sex of high-performing participants who achieved weight loss of 10% or greater at 12 months. Methods A retrospective analysis was performed from 2011 to 2014 using 2720 participants enrolled in a Retrofit weight-loss program. Participants had a starting body mass index (BMI) of >25 kg/m² and were at least 18 years of age. Weight measurements were assessed at 6, 12, and 24 months in the program to evaluate change in body weight, BMI, and percentage of participants who achieved 5% or greater weight loss. A secondary analysis characterized high-performing participants who lost ≥10% of their starting weight (n=238). Characterized behaviors were evaluated, including self-monitoring through weigh-ins, number of days wearing an activity tracker, daily step count average, and engagement through coaching conversations via Web-based messages, and number of coaching sessions attended. Results Average weight loss at 6 months was −5.55% for male and −4.86% for female participants. Male and female participants had an average weight loss of −6.28% and −5.37% at 12 months, respectively. Average weight loss at 24 months was −5.03% and −3.15% for males and females, respectively. Behaviors of high-performing participants were assessed at 12 months. Number of weigh-ins were greater in high-performing male (197.3 times vs 165.4 times, P=.001) and female participants (222 times vs 167 times, P<.001) compared with remaining participants. Total activity tracker days and average steps per day were greater in high-performing females (304.7 vs 266.6 days, P<.001; 8380.9 vs 7059.7 steps, P<.001, respectively) and males (297.1 vs 255.3 days, P<.001; 9099.3 vs 8251.4 steps, P=.008, respectively). High-performing female participants had significantly more coaching conversations via Web-based messages than remaining female participants (341.4 vs 301.1, P=.03), as well as more days with at least one such electronic message (118 vs 108 days, P=.03). High-performing male participants displayed similar behavior. Conclusions Participants on the Retrofit program lost an average of −5.21% at 6 months, −5.83% at 12 months, and −4.09% at 24 months. High-performing participants show greater adherence to self-monitoring behaviors of weighing in, number of days wearing an activity tracker, and average number of steps per day. Female high performers have higher coaching engagement through conversation days and total number of coaching conversations.
Collapse
|
40
|
Ko H, Teede H, Moran L. Analysis of the barriers and enablers to implementing lifestyle management practices for women with PCOS in Singapore. BMC Res Notes 2016; 9:311. [PMID: 27306216 PMCID: PMC4910192 DOI: 10.1186/s13104-016-2107-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 05/31/2016] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Polycystic ovary syndrome (PCOS) is a condition that affects women of reproductive age and manifests with adverse reproductive, metabolic and psychological consequences. Evidence-based PCOS guidelines recommend lifestyle management first line for infertility. In Singapore women with PCOS can attend the PCOS Clinic at the Kandang Kerbau Women and Children's Hospital for infertility treatment. However lifestyle integration into infertility management is currently limited and barriers and enablers to progress remain unclear. METHODS All PCOS clinic staff undertook semi-structured interviews to investigate perceived barriers for staff and consumers for the integration of lifestyle into infertility management. This study utilised various tools including an 8P Ishikawa diagram model to identify and categorise barriers. A modified Hanlon method was then used to prioritise barriers within the Singaporean context considering organisational, cultural and financial constraints. Propriety, economics, acceptability, resources and legality (PEARL) criteria were also incorporated into this decision-making tool. RESULTS In the 8P model, there were five factors contributing to the 'procedure (consultations and referral processes)' barrier, one 'policy (government and hospitals)' factor, five 'place' factors, two 'product (lifestyle management programme)' barriers, two 'people (programme capacity)' factors, four 'process (integration)' factors, three 'promotion' barriers and three 'price' factors. Of the prioritised barriers, two were identified across each of 'procedures', 'place', 'product' and 'people' and four related to 'processes'. There were no barriers identified that for 'policies', 'promotion' and 'price' that can be addressed. CONCLUSIONS There is a clear need to integrate lifestyle into infertility management in PCOS, in line with current national and international evidence-based guidelines. The highest priority identified improvement opportunity was to develop a collaborative lifestyle management programme across hospital services. Reductions in variation of delivery and strengthening support within the lifestyle programme are other identified priorities. The strength of this study is that this is the first study to utilise a pragmatic quality improvement method for barriers identification and prioritisation in the area of lifestyle management for women with PCOS. This project identified factors that may provide easy improvements, but also identified some local factors that may be very difficult to change. The major limitation of this study is that it is only looking at the Singapore setting, so may have limited applicability to other countries. However, results from quality improvement projects are meant to be context specific.
Collapse
Affiliation(s)
- Henry Ko
- />SingHealth Centre for Health Services Research, Singapore Health Services Pte Ltd, 20 College Road, The Academia, Discovery Tower, Level 7 Translational and Clinical Research Hub, Singapore, 169856 Singapore
- />SingHealth and Duke-NUS Academic Medicine Research Institute, Duke-NUS Graduate Medical School, Academia, Singapore Health Services Pte Ltd, 20 College Road, Singapore, 169856 Singapore
- />NHMRC Clinical Trials Centre, University of Sydney, Levels 4-6, Medical Foundation Building, 92-94 Parramatta Rd, Camperdown, NSW 2050 Australia
| | - Helena Teede
- />Monash Centre for Health Research & Implementation, School of Public Health, Monash University, Level 1, 43-51, Kanooka Grove, Clayton, VIC 3168 Australia
| | - Lisa Moran
- />Monash Centre for Health Research & Implementation, School of Public Health, Monash University, Level 1, 43-51, Kanooka Grove, Clayton, VIC 3168 Australia
- />The Robinson Research Institute, University of Adelaide, Norwich Centre, Ground Floor, 55 King William Road, North Adelaide, SA 5006 Australia
| |
Collapse
|
41
|
Abril EP. Tracking Myself: Assessing the Contribution of Mobile Technologies for Self-Trackers of Weight, Diet, or Exercise. JOURNAL OF HEALTH COMMUNICATION 2016; 21:638-646. [PMID: 27168426 DOI: 10.1080/10810730.2016.1153756] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
For individuals trying to lose or maintain weight, self-tracking their weight, diet, or exercise is important. In the past, different tracking modes have been examined, like paper and pencil, memory, or personal digital assistants. But the recent advancement and adoption of mobile technologies could also result in easier and simpler self-tracking. However, little is known about self-trackers, their tracking modes, and the absolute or relative contribution of each tracking mode at the population level. This study fills this gap by (a) comparing self-trackers' characteristics across tracking modes and against nontrackers and (b) testing the relationship between mobile self-tracking and tracking outcomes using a representative sample of data from the Pew Internet and American Life Project from 2012. Controls in the model include demographics, technology use, and health indicators. Results suggest that mobile self-trackers are younger and more educated and that mobile self-tracking is a positive contributor and the best tracking mode.
Collapse
Affiliation(s)
- Eulàlia Puig Abril
- a Department of Communication , University of Illinois at Chicago , Chicago , Illinois , USA
| |
Collapse
|
42
|
Adherent Use of Digital Health Trackers Is Associated with Weight Loss. PLoS One 2016; 11:e0152504. [PMID: 27049859 PMCID: PMC4822791 DOI: 10.1371/journal.pone.0152504] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Accepted: 03/15/2016] [Indexed: 11/21/2022] Open
Abstract
We study the association between weight fluctuation and activity tracking in an on-line population of thousands of individuals using digital health trackers (1,749 ≤ N ≤ 14,411, depending on the activity tracker considered) with millions of recorded activities (119,292 ≤ N ≤ 2,221,382) over the years 2013–2015. In a first between-subject analysis, we found a positive association between activity tracking frequency and weight loss. Users who log food with moderate frequency lost an additional 0.63% (CI [0.55, 0.72]; p < .001) of their body weight per month relative to low frequency loggers. Frequent workout loggers lost an additional 0.38% (CI [0.20, 0.56]; p < .001) and frequent weight loggers lost an additional 0.40% (CI [0.33, 0.47]; p < .001) as compared to infrequent loggers. In a subsequent within-subject analysis on a subset of the population (799 ≤ N ≤ 6,052) with sufficient longitudinal data, we used fixed effect models to explore the temporal relationship between a change in tracking adherence and weight change. We found that for the same individual, weight loss is significantly higher during periods of high adherence to tracking vs. periods of low adherence: +2.74% of body weight lost per month (CI [2.68, 2.81]; p < .001) during adherent weight tracking, +1.35% per month (CI [1.26, 1.43]; p < .001) during adherent food tracking, and +0.60% per month (CI [0.44, 0.76]; p < .001) during adherent workout tracking. The findings suggest that adherence to activity tracking can be utilized as a convenient real-time predictor of weight fluctuations, enabling large-scale, personalized intervention strategies.
Collapse
|
43
|
Lanoye A, Gorin AA, LaRose JG. Young Adults' Attitudes and Perceptions of Obesity and Weight Management: Implications for Treatment Development. Curr Obes Rep 2016; 5:14-22. [PMID: 26923688 PMCID: PMC5621592 DOI: 10.1007/s13679-016-0188-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Young adults are underrepresented in standard behavioral weight loss trials, and evidence suggests that they differ from older adults on many weight-related constructs. The aim of this review is to explore young adults' attitudes toward obesity and weight management, with particular attention to those factors that may play a role in the development of future treatment efforts. Both intrapersonal and interpersonal considerations unique to young adulthood are assessed; in addition, we examine young adults' perceptions of specific weight-related behaviors such as dieting, physical activity, and self-weighing. Conclusions are consistent with other findings suggesting that weight management interventions should be adapted and designed specifically for this age group.
Collapse
Affiliation(s)
- Autumn Lanoye
- Department of Psychology, Virginia Commonwealth University, 806 West Franklin Street, PO Box 842018, Richmond, VA, 23284, USA
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, 830 East Main Street, 4th Floor, Richmond, VA, 23219, USA
| | - Amy A Gorin
- Department of Psychology, Center for Health, Intervention, and Prevention, University of Connecticut, 2006 Hillside Road, Unit 1248, Storrs, CT, 06269, USA
| | - Jessica Gokee LaRose
- Department of Health Behavior and Policy, Virginia Commonwealth University School of Medicine, 830 East Main Street, 4th Floor, Richmond, VA, 23219, USA.
| |
Collapse
|
44
|
Steinberg DM. Author's Response. J Acad Nutr Diet 2016; 116:405-406. [PMID: 26920238 DOI: 10.1016/j.jand.2015.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2015] [Indexed: 10/22/2022]
Affiliation(s)
- Dori M Steinberg
- Duke Global Digital Health Science Center, Duke Global Health Institute, Duke University, Durham, NC
| |
Collapse
|
45
|
LaRose JG, Lanoye A, Tate DF, Wing RR. Frequency of self-weighing and weight loss outcomes within a brief lifestyle intervention targeting emerging adults. Obes Sci Pract 2016; 2:88-92. [PMID: 27668087 PMCID: PMC5021162 DOI: 10.1002/osp4.24] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 12/04/2015] [Accepted: 12/09/2015] [Indexed: 01/16/2023] Open
Abstract
Background Frequent self‐weighing is associated with better weight loss and maintenance among adults. Emerging adults ages 18–25 rarely enroll in behavioural weight loss trials, and thus, little is known about their willingness to engage in frequent self‐weighing and its association with weight loss in this age group. Purpose The purpose of this study is to examine the frequency of self‐weighing among 18–25‐year‐old over the course of a brief lifestyle intervention and to determine the association between frequent self‐weighing and weight loss. Methods Emerging adults (EA) ages 18–25 [N = 52, 54% racial/ethnic minority, 79% female, BMI = 34.2 (5.4)] enrolled in a 3‐month lifestyle intervention with structure and content modified for EA. Benefits of frequent self‐weighing were presented; participants were encouraged to weigh themselves at least weekly and no more than daily. Assessments occurred at baseline and post‐treatment (3 months). Results At baseline, a majority of participants (63.5%) reported self‐weighing less than once a week. Frequency of self‐weighing increased over treatment (p < 0.001), with 42.9% weighing weekly and 38.2% weighing several times per week or more (i.e. frequent self‐weighing) at 3 months. Frequent self‐weighing was associated with greater weight loss (p = 0.03) and greater likelihood of achieving 5% weight loss (p = 0.01) at post‐treatment. Conclusions Frequent self‐weighing may be a viable approach to promoting self‐regulation during the high‐risk developmental period of emerging adulthood. Consistent with findings among other adult samples, frequent self‐weighing was associated with greater weight losses.
Collapse
Affiliation(s)
- J G LaRose
- Department of Health Behavior and Policy Virginia Commonwealth University School of Medicine Richmond VA USA
| | - A Lanoye
- Department of Health Behavior and Policy Virginia Commonwealth University School of Medicine Richmond VA USA; Department of Psychology Virginia Commonwealth University Richmond VA USA
| | - D F Tate
- Gillings Global School of Public Health University of North Carolina at Chapel Hill Chapel Hill NC USA; Lineberger Comprehensive Cancer Center Chapel Hill NC USA
| | - R R Wing
- Alpert Medical School of Brown University Providence RI USA; Weight Control and Diabetes Center the Miriam Hospital Providence RI USA
| |
Collapse
|
46
|
Zheng Y, Terry MA, Danford CA, Ewing LJ, Sereika SM, Goode RW, Mori A, Burke LE. Experiences of Daily Weighing Among Successful Weight Loss Individuals During a 12-Month Weight Loss Study. West J Nurs Res 2016; 40:462-480. [PMID: 28322640 DOI: 10.1177/0193945916683399] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The purpose of the study was to describe participants' experience of daily weighing and to explore factors influencing adherence to daily weighing among individuals who were successful in losing weight during a behavioral weight loss intervention. Participants completed a 12-month weight loss intervention study that included daily self-weighing using a Wi-Fi scale. Individuals were eligible to participate regardless of their frequency of self-weighing. The sample ( N = 30) was predominantly female (83.3%) and White (83.3%) with a mean age of 52.9 ± 8.0 years and mean body mass index of 33.8 ± 4.7 kg/m2. Five main themes emerged: reasons for daily weighing (e.g., feel motivated, being in control), reasons for not weighing daily (e.g., interruption of routine), factors that facilitated weighing, recommendations for others about daily weighing, and suggestions for future weight loss programs. Our results identified several positive aspects to daily self-weighing, which can be used to promote adherence to this important weight loss strategy.
Collapse
Affiliation(s)
- Y Zheng
- 1 Boston College, Chestnut Hill, MA, USA
| | | | | | | | | | | | - A Mori
- 2 University of Pittsburgh, PA, USA
| | | |
Collapse
|
47
|
Zheng Y, Sereika SM, Ewing LJ, Danford CA, Terry MA, Burke LE. Association between Self-Weighing and Percent Weight Change: Mediation Effects of Adherence to Energy Intake and Expenditure Goals. J Acad Nutr Diet 2015; 116:660-6. [PMID: 26727241 DOI: 10.1016/j.jand.2015.10.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 10/15/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND To date, no investigators have examined electronically recorded self-weighing behavior beyond 9 months or the underlying mechanisms of how self-weighing might impact weight change. OBJECTIVE Our aims were to examine electronically recorded self-weighing behavior in a weight-loss study and examine the possible mediating effects of adherence to energy intake and energy expenditure (EE) goals on the association between self-weighing and weight change. DESIGN This was a secondary analysis of the self-efficacy enhancement arm of the Self Efficacy Lifestyle Focus (SELF) trial, an 18-month randomized clinical trial. PARTICIPANTS/SETTING The study was conducted at the University of Pittsburgh (2008-2013). Overweight or obese adults with at least one additional cardiovascular risk factor were eligible. INTERVENTION Participants in the self-efficacy enhancement arm were given a scale (Carematix, Inc) and instructed to weigh themselves at least 3 days per week or every other day. The scale date- and time-stamped each weighing episode, storing up to 100 readings. MAIN OUTCOME MEASURES Weight was assessed every 6 months. Adherence to energy intake and EE goals was calculated on a weekly basis using paper diary data. STATISTICAL ANALYSES PERFORMED Linear mixed modeling and mediation analyses were used. RESULTS The sample (n=55) was 80% female, 69% non-Hispanic white, mean (standard deviation) age was 55.0 (9.6) years and body mass index (calculated as kg/m2) was 33.1 (3.7). Adherence to self-weighing declined over time (P<0.001). From baseline to 6 months, there was a significant mediation effect of adherence to energy intake (P=0.02) and EE goals (P=0.02) on the association between adherence to self-weighing and percent weight change. Mediation effects were not significant during the second and third 6-month periods of the study. CONCLUSIONS Objectively measured adherence to self-weighing declined over 18 months. During the first 6 months, self-weighing directly impacted weight change and indirectly impacted weight change through changes in energy intake and EE.
Collapse
|
48
|
Pacanowski CR, Loth KA, Hannan PJ, Linde JA, Neumark-Sztainer DR. Self-Weighing Throughout Adolescence and Young Adulthood: Implications for Well-Being. JOURNAL OF NUTRITION EDUCATION AND BEHAVIOR 2015; 47:506-515.e1. [PMID: 26566095 PMCID: PMC4644499 DOI: 10.1016/j.jneb.2015.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2015] [Revised: 08/04/2015] [Accepted: 08/10/2015] [Indexed: 06/05/2023]
Abstract
OBJECTIVE To describe the prevalence of self-weighing in the transition period from adolescence to young adulthood and examine cross-sectional and longitudinal associations between self-weighing and weight status, psychological, and behavioral outcomes. DESIGN Project Eating and Activity in Teens and Young Adults, a longitudinal cohort study that assessed variables 3 times over 10 years. PARTICIPANTS A total of 1,868 adolescents and young adults. MAIN OUTCOME MEASURES Weight, body mass index, weight disparity, body satisfaction, weight concern, self-esteem, depression, and unhealthy weight control behaviors. ANALYSIS Cross-sectional and longitudinal. RESULTS Significant positive correlations were found at each time point between self-weighing and weight concern for both genders. Self-weighing was significantly inversely related to self-esteem at each time point in female participants. Increases in endorsement of self-weighing were significantly related to decreases in body satisfaction and self-esteem and increases in weight concern and depression in female participants and to increases in weight concern in male participants. CONCLUSIONS AND IMPLICATIONS Findings suggest that self-weighing may not be an innocuous behavior for young people, particularly women. Interventions should assess potential harmful consequences of self-weighing in addition to any potential benefits. It may be appropriate for clinicians to ask about self-weighing, and if it is frequent, to explore motivations, perceived benefits, and potential adverse correlates or consequences.
Collapse
Affiliation(s)
- Carly R Pacanowski
- Department of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN.
| | - Katie A Loth
- Department of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN
| | - Peter J Hannan
- Department of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN
| | - Jennifer A Linde
- Department of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN
| | - Dianne R Neumark-Sztainer
- Department of Epidemiology and Community Health, School of Public Health, University of Minnesota, Minneapolis, MN
| |
Collapse
|
49
|
Madigan CD, Daley AJ, Lewis AL, Aveyard P, Jolly K. Is self-weighing an effective tool for weight loss: a systematic literature review and meta-analysis. Int J Behav Nutr Phys Act 2015; 12:104. [PMID: 26293454 PMCID: PMC4546162 DOI: 10.1186/s12966-015-0267-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Accepted: 08/13/2015] [Indexed: 01/28/2023] Open
Abstract
BACKGROUND There is a need to identify effective behavioural strategies for weight loss. Self-weighing may be one such strategy. PURPOSE To examine the effectiveness of self-weighing for weight loss. METHODS A systematic review and meta-analysis of randomised controlled trials that included self-weighing as an isolated intervention or as a component within an intervention. We used sub groups to analyse differences in frequency of weighing instruction (daily and weekly) and also whether including accountability affected weight loss. RESULTS Only one study examined self-weighing as a single strategy and there was no evidence it was effective (-0.5 kg 95 % CI -1.3 to 0.3). Four trials added self-weighing/self-regulation techniques to multi-component programmes and resulted in a significant difference of -1.7 kg (95 % CI -2.6 to -0.8). Fifteen trials comparing multi-component interventions including self-weighing compared with no intervention or minimal control resulted in a significant mean difference of -3.4 kg (95 % CI -4.2 to -2.6). There was no significant difference in the interventions with weekly or daily weighing. In trials which included accountability there was significantly greater weight loss (p = 0.03). CONCLUSIONS There is a lack of evidence of whether advising self-weighing without other intervention components is effective. Adding self-weighing to a behavioural weight loss programme may improve weight loss. Behavioural weight loss programmes that include self-weighing are more effective than minimal interventions. Accountability may improve the effectiveness of interventions that include self-weighing.
Collapse
Affiliation(s)
- Claire D Madigan
- School of Health and Population Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK. .,The Boden Institute of Obesity, Nutrition, Exercise and Eating Disorders, The University of Sydney, Level 2 Charles Perkin Centre D17, Sydney, NSW, 2006, Australia.
| | - Amanda J Daley
- School of Health and Population Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| | - Amanda L Lewis
- School of Social and Community Medicine, University of Bristol, Canynge Hall, 39 Whatley Road, Bristol, BS8 2PS, UK.
| | - Paul Aveyard
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Radcliffe Observatory Quarter, Woodstock Road, Oxford, OX2 6GG, UK.
| | - Kate Jolly
- School of Health and Population Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK.
| |
Collapse
|
50
|
Share BL, Naughton GA, Obert P, Peat JK, Aumand EA, Kemp JG. Effects of a Multi-Disciplinary Lifestyle Intervention on Cardiometabolic Risk Factors in Young Women with Abdominal Obesity: A Randomised Controlled Trial. PLoS One 2015; 10:e0130270. [PMID: 26114854 PMCID: PMC4483260 DOI: 10.1371/journal.pone.0130270] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2014] [Accepted: 05/15/2015] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Young women are under-represented in cardiovascular disease research, with obesity and cardiometabolic risk factor interventions generally targeting older adults. Furthermore, appropriate study designs for young women remain uncertain. This study aimed to assess the impact of a 12 week multi-disciplinary lifestyle intervention on cardiometabolic risk factors in premenopausal women with abdominal obesity. METHODS Women aged 18-30 y with abdominal obesity [waist circumference (WC) ≥ 80 cm] were randomised to a 12 week lifestyle intervention (n = 26) of physical activity, nutrition education and cognitive behavioural therapy, or a wait-list control group (n = 17). Both groups completed anthropometric, biochemical, nutrition and fitness testing, at pre (0 weeks) and post (12 weeks), with intervention participants completed follow-up testing at 24 weeks. RESULTS Results from a linear mixed model showed no between-group differences, other than increased physical activity in the intervention group, at post. In the intervention group alone, positive within-group changes were observed in WC, waist-hip-ratio (WHR), waist-height-ratio (WHtR), resting heart rate, blood pressure, predicted VO2max, and total energy intake. Most changes were maintained at 24 weeks post-intervention. Similar within-group improvements were observed in control participants in WC, WHR, WHtR, and systolic blood pressure but no changes were detected in physical activity and nutrition. CONCLUSIONS Cardiometabolic risk factors were decreased as a result of a lifestyle intervention in young women with abdominal obesity. It is difficult to describe observations in the control group without greater understanding of the behaviour of wait-list participants. TRIAL REGISTRATION Australian New Zealand Clinical Trials Registry ACTRN12612001017819.
Collapse
Affiliation(s)
- Bianca L. Share
- School of Exercise Science, Australian Catholic University, Melbourne, Victoria, Australia
- * E-mail:
| | - Geraldine A. Naughton
- School of Exercise Science, Australian Catholic University, Melbourne, Victoria, Australia
- Murdoch Childrens Research Institute, Melbourne, Victoria, Australia
| | - Philippe Obert
- School of Exercise Science, Australian Catholic University, Melbourne, Victoria, Australia
- LAPEC, EA4278, University of Avignon, Avignon, France
| | - Jennifer K. Peat
- Faculty of Health Sciences, Australian Catholic University, Sydney, NSW, Australia
| | - Elizabeth A. Aumand
- School of Exercise Science, Australian Catholic University, Melbourne, Victoria, Australia
| | - Justin G. Kemp
- School of Exercise Science, Australian Catholic University, Melbourne, Victoria, Australia
| |
Collapse
|