Louisa J Ells

Louisa J Ells
Leeds Beckett University | LEEDS MET · School of clinical and applied sciences

BSc(hons), PhD

About

99
Publications
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Introduction
Professor of obesity, Leeds Beckett university

Publications

Publications (99)
Article
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Background The high prevalence of childhood obesity is a concern for public health policy and practitioners, leading to a focus on early prevention. UK health visitors (HVs) are well-positioned to prevent excessive weight gain trends in pre-school children but experience barriers to implementing guideline recommended practices. This research engage...
Article
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Background: In 2020, the National Health Service Low-Calorie Diet Programme (NHS-LCD) was launched, piloting a total diet (TDR) replacement intervention with behaviour change support for people living with Type 2 Diabetes (T2D) and excess weight. Four independent service providers were commissioned to design and deliver theoretically grounded prog...
Article
Full-text available
Primary care providers (PCPs) have an important role in prevention of excess weight gain in pre-school children. Guidelines exist to support PCPs' practices. This systematic review of PCPs' practice behaviors and their perceptions of barriers to and facilitators of implementation of guidelines was the first step toward the development of an interve...
Article
The aim of this systematic review and meta-analysis was to examine the effectiveness of ehealth interventions for the treatment of children and adolescents with overweight or obesity. Databases were searched up to November 2020. Studies were randomised controlled trials where interventions were delivered via e-health (e.g. computers, tablets, smart...
Technical Report
Full-text available
Behaviour change techniques for healthy weight services to support families with children aged 4-11 years Changing behaviour in families 2 About Public Health England Public Health England exists to protect and improve the nation's health and wellbeing and reduce health inequalities. We do this through world-leading science, research, knowledge and...
Article
School food provision is an important lever to shape the eating behaviours and dietary intake of school‐aged children and young people, and may help to address issues of childhood obesity, inadequate nutrient intakes and the widening gap of health inequalities. The regulation of school food has been an issue since the 1940s, with the challenges of...
Article
Full-text available
Excess body weight and risky alcohol consumption are two of the greatest contributors to global disease. Alcohol use contributes directly and indirectly to weight gain. Health behaviours cluster in adolescence and track to adulthood. This review identified and synthesised qualitative research to provide insight into common underlying factors influe...
Article
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This paper was originally published under a standard licence. This has now been amended to a CC BY licence in the PDF and HTML.
Article
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Childhood obesity results in premature atherosclerosis and requires early intervention. Compare the effectiveness of 6‐month lifestyle interventions (with choice of either individual or group therapy) with standard care on body mass index (BMI) z‐score and cardiovascular disease (CVD) risks factors in children with obesity. This 6‐month randomized...
Article
Clinical Question How effective are diet, physical activity, and behavioral interventions in treating children aged 6 to 11 years with overweight or obesity? Bottom Line Multicomponent behavior-changing interventions may be beneficial in achieving small, short-term reductions in body mass index (calculated as weight in kilograms divided by height...
Article
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This single-blind, pragmatic, cluster randomised controlled trial aims to investigate uptake of children's weight management services in response to enhanced National Child Measurement Programme (NCMP) letters providing weight status feedback to parents in three English counties in 2015. Parents of 2642 overweight or very overweight (obese) childre...
Article
Children and adolescents with overweight and obesity are a global health concern. This is an integrative overview of six Cochrane systematic reviews, providing an up-to-date synthesis of the evidence examining interventions for the treatment of children and adolescents with overweight or obesity. The data extraction and quality assessments for each...
Article
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Background: Maternal obesity, excessive gestational weight gain (GWG) and post-partum weight retention (PPWR) constitute new public health challenges, due to the association with negative short- and long-term maternal and neonatal outcomes. The aim of this evidence review was to identify effective lifestyle interventions to manage weight and improv...
Article
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Review question/objective: To update an existing systematic review series of randomized controlled trials (RCT) that include a dietary intervention for the management of overweight or obesity in children or adolescents.Specifically, the review questions are: In randomized controlled trials of interventions which include a dietary intervention for...
Article
Worldwide prevalence of adult overweight and obesity is a growing public health issue. Adults with overweight/obesity often have chronic musculoskeletal pain. Using a mixed‐methods review, we aimed to quantify the effectiveness and explore the appropriateness of weight loss interventions for this population. Electronic databases were searched for s...
Article
Adult obesity in the UK remains a public health priority. Current guidance recommends local areas provide multicomponent interventions to treat adults with overweight and obesity; however, there is currently a dearth of published evidence on the evaluation of these programmes. This study reports on a mixed method evaluation of seven tier 2 weight m...
Article
Full-text available
Objective: To examine the effectiveness of intermittent energy restriction in the treatment for overweight and obesity in adults, when compared to usual care treatment or no treatment. Introduction: Intermittent energy restriction encompasses dietary approaches including intermittent fasting, alternate day fasting, and fasting for two days per w...
Article
Background: The impact of specialist weight management services (Tier 3) for children with severe and complex obesity in the UK is unclear. This review aims to examine the impact of child Tier 3 services in the UK, exploring service characteristics and implications for practice. Methods: Rapid systematic review of any study examining specialist...
Article
Full-text available
To aim of the review was to examine the most recent (2010 onwards) research evidence on the health and behavioural impacts, in adults and children, of fiscal strategies that target high sugar foods and sugar-sweetened drinks (SSDs). A pragmatic rapid review was undertaken using a systematic search strategy. The review was part of a programme of wor...
Article
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Background: Parents tend to visually assess children to determine their weight status and typically underestimate child body size. A visual tool may aid parents to more accurately assess child weight status and so support strategies to reduce childhood overweight. Body image scales (BIS) are visual images of people ranging from underweight to over...
Article
Aims: To gain insight into the lived experience of adults with overweight/obesity and chronic musculoskeletal pain (CMP). Knowledge gained will inform healthcare professionals about the complexity of the weight-pain relationship and enable more effective engagement with this population BACKGROUND: Quantitative studies show links between weight and...
Article
Full-text available
This systematic review synthesized the available evidence on the effect of short-term periods of intermittent energy restriction (weekly intermittent energy restriction; ≥7-d energy restriction) in comparison with usual care (daily continuous energy restriction), in the treatment of overweight and obesity in adults. Six electronic databases were se...
Article
Full-text available
Background Excess body weight and risky alcohol consumption are two of the greatest contributors to global disease. Health behaviours cluster in adolescence and track to adulthood. Very little is known about similar and contrasting influences on young people’s eating behaviours and alcohol use. Whilst there are bodies of literature which explore th...
Article
Specialist weight management services provide a treatment option for severe obesity. The objective of the study is to review the characteristics, impact and practice implications of specialist weight management services for adults in the UK. Systematic review: EMBASE, MEDLINE and PsycINFO were searched from January 2005 to March 2016 with supplemen...
Article
Background: Child and adolescent overweight and obesity has increased globally, and can be associated with significant short- and long-term health consequences. This is an update of a Cochrane review published first in 2003, and updated previously in 2009. However, the update has now been split into six reviews addressing different childhood obesi...
Article
Full-text available
Background: Adolescent overweight and obesity has increased globally, and can be associated with short- and long-term health consequences. Modifying known dietary and behavioural risk factors through behaviour changing interventions (BCI) may help to reduce childhood overweight and obesity. This is an update of a review published in 2009. Objecti...
Article
Full-text available
Objective To quantify the influence of baseline pain levels on weight change at one-year follow-up in patients attending a National Health Service specialist weight management programme. Methods We compared one-year follow-up weight (body mass) change between patient sub-groups of none-to-mild, moderate, and severe pain at baseline. A mean sub-gro...
Data
Raw data used for the fully adjusted statistical analysis. (XLSX)
Chapter
Background: Child and adolescent obesity has increased globally, and can be associated with significant short- and long-term health consequences. Objectives: To assess the efficacy of drug interventions for the treatment of obesity in children and adolescents. Search methods: We searched CENTRAL, MEDLINE, Embase, PubMed (subsets not available...
Article
Full-text available
Review objective/question: The objective of this umbrella review is to examine the effectiveness of different types of weight management, smoking cessation and alcohol reduction interventions in producing explicitly measured behavior change or proxy measures of behavior change in pregnant women.Specifically the review question is: are weight manag...
Article
Full-text available
Background Rising rates of childhood obesity have become a pressing issue in public health, threatening both the mental and physical well-being of children. Attempts to address this problem are multifaceted, and in England include the National Child Measurement Programme (NCMP) which assesses weight status in English primary school children in rece...
Poster
The study aim was to explore individuals’ perceptions and experiences of being overweight/obese and living with persistent musculoskeletal pain (PMP). A particular objective was to explore their understanding of issues related to physical function, weight-loss effort, self-efficacy and mood
Article
Intervention studies have been undertaken to reduce sedentary behaviour (SB) and thereby potentially ameliorate unhealthy weight gain in children and adolescents. We synthesised evidence and quantified the effects of SB interventions (single or multiple components) on body mass index (BMI) or BMI z-score in this population. Publications up to March...
Article
Review question/objective: The overall aim of this mixed methods systematic review is to explore the effectiveness and experience of early intervention programs using volunteers, peer supporters and community champions with the aim of improving one or more of the following outcomes of children from conception to two years:Specifically the review q...
Article
Review question/objective: The objective of this mixed methods review is to develop an aggregated synthesis of qualitative and quantitative data on weight-loss interventions for overweight/obese adults with chronic musculoskeletal pain in an attempt to derive conclusions and recommendations useful for clinical practice and policy decision making.T...
Article
Intervention studies have been undertaken to reduce sedentary behaviour (SB) and thereby potentially ameliorate unhealthy weight gain in children and adolescents. We synthesised evidence and quantified the effects of SB interventions (single or multiple components) on body mass index (BMI) or BMI z-score in this population. Publications up to March...
Article
Full-text available
Background: Child overweight and obesity has increased globally, and can be associated with short- and long-term health consequences. Objectives: To assess the effects of diet, physical activity, and behavioural interventions for the treatment of overweight or obesity in preschool children up to the age of 6 years. Search methods: We performed...
Article
Full-text available
Background/objective: There are reports that childhood obesity tracks into later life. Nevertheless, some tracking statistics such as correlations do not quantify individual agreement, whereas others such as diagnostic test statistics can be difficult to translate into practice. We aimed to employ a novel analytic approach, based on ordinal logist...
Article
Background: Child and adolescent overweight and obesity have increased globally, and are associated with short- and long-term health consequences. Objectives: To assess the efficacy of diet, physical activity and behavioural interventions delivered to parents only for the treatment of overweight and obesity in children aged 5 to 11 years. Searc...
Article
Background: The percentage flow-mediated dilation (FMD%) of the brachial artery is purported to be an early indicator of atherosclerosis and has been reported to be reduced in people with obstructive sleep apnoea. Nevertheless, FMD% scales poorly for, and is concomitantly dependent on, initial artery diameter, which may, itself, be higher in obstr...
Article
REVIEW QUESTION / OBJECTIVE Are intermittent fasting interventions an effective treatment for overweight and obesity in adults, when compared to usual care treatment (continuous daily energy restriction – reduced calorie diet) or no treatment (ad libitum diet)? INCLUSION CRITERIA Types of participants This review will consider studies that incl...
Article
Purpose: Isotemporal substitution analysis offers new insights for public health, but has only recently been applied to sedentary behavior research. We aimed to quantify associations between the substitution of 10 minutes of sedentary behavior with 10 minutes of light physical activity (LPA) or moderate-to-vigorous physical activity (MVPA) and the...
Article
This study reviewed the use in primary care of national surveillance data for children to determine the data's potential utility to inform policy and practice decisions on how to prevent and treat childhood obesity. We reviewed the 28 countries identified by the World Obesity Federation as having high-quality comparable body mass index data for chi...
Chapter
This is the protocol for a review and there is no abstract. The objectives are as follows: To assess the effects of commercial weight loss products and services for overweight or obese people.
Article
Child and adolescent overweight and obesity have increased globally, and are associated with significant short and long term health consequences. To assess the effects of surgical interventions for treating obesity in childhood and adolescence. We searched the Cochrane Library, MEDLINE, PubMed, EMBASE as well as LILACS, ICTRP Search Portal and Clin...
Article
Sleep-disordered breathing is an important comorbidity for several diseases, including stroke. Initial screening tools comprise simple yes/no questions about known risk factors for sleep-disordered breathing, e. g., obesity, sex. But walking speed has not been investigated in this context. We examined the cross-sectional association between walking...
Article
Full-text available
Background Parents typically do not recognise their child’s weight status accurately according to clinical criteria, and thus may not take appropriate action if their child is overweight. We developed a novel visual intervention designed to improve parental perceptions of child weight status according to clinical criteria for children aged 4–5 and...
Article
A systematic review of randomized controlled trials was conducted to evaluate the effectiveness of eHealth interventions for the prevention and treatment of overweight and obesity in adults. Eight databases were searched for studies published in English from 1995 to 17 September 2014. Eighty‐four studies were included, with 183 intervention arms, o...
Article
A systematic review of randomized controlled trials was conducted to evaluate the effectiveness of eHealth interventions for the prevention and treatment of overweight and obesity in adults. Eight databases were searched for studies published in English from 1995 to 17 September 2014. Eighty-four studies were included, with 183 intervention arms, o...
Article
Background International evidence shows that severe paediatric obesity results in an increased risk of ill health and may require specialised weight management strategies, yet there remains a lack of data on the extent of the problem. Objective To examine the prevalence of severe obesity in children aged 4–5 and 10–11 years, attending English schoo...
Article
This is the protocol for a review and there is no abstract. The objectives are as follows: To assess the effects of commercial weight loss products and services for overweight or obese people.
Chapter
In a world where obesity has now reached epidemic proportions, a thorough understanding of the underlying causes of the problem is essential if society, public health initiatives and government policies are to successfully address the issue. The obesogenic environment describes all the possible influences that our environment presents which encoura...
Article
Accurate, reliable and feasible methods of dietary intake and physical activity assessment are required to improve our understanding of the associations between energy balance-related behaviours and health. The Synchronised Nutrition and Activity Program (SNAP(™) ) was developed to enhance recall in children by integrating new and established metho...
Article
We were interested to read the recent paper by Griffiths et al.¹ that reported a nonlinear relation between obesity and deprivation, and reduced prevalence of obesity in the most deprived children, as measured by the Income Deprivation Affecting Children Index (IDACI), along with the accompanying editorial by Kelly.² We have extensively analysed da...
Article
This study was conducted to develop a better understanding of community-based initiatives relating to maternal obesity, and to gain community service providers' views on maternal obesity services and their perceived role in the management and prevention of maternal obesity. An interpretive constructionist approach using semi-structured interviews a...