Publications
CamNtech Research Library
CamNtech products have been trusted by specialist researchers for over 25 years.
Our research library contains peer reviewed publications citing the use of our devices.
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Resting heart rate is a population-level biomarker of cardiorespiratory fitness: The Fenland Study
Introduction Few large studies have evaluated the relationship between resting heart rate (RHR) and cardiorespiratory fitness. Here we examine cross-sectional and longitudinal relationships between RHR and fitness, explore factors that influence these relationships, and demonstrate the utility of RHR for remote population monitoring. Methods In cross-sectional analyses (The UK Fenland Study: 5,722 women, 5,143 men, […]
Related Product: Actiheart
Publication Date: May 11, 2023
Descriptive epidemiology of cardiorespiratory fitness in UK adults: The Fenland Study
Background Cardiorespiratory fitness is rarely measured in population studies. Most studies of fitness do not examine differences by population subgroups or seasonal trends. Methods We used a validated submaximal exercise test to measure fitness in 5976 women and 5316 men, residing in England. We expressed fitness as maximal oxygen consumption per kilogram total body mass […]
Related Product: Actiheart
Publication Date: March 1, 2022
Joint associations between objectively measured physical activity volume and intensity with body-fatness. The Fenland Study
Background/Objectives Physical activity energy expenditure (PAEE) represents the total volume of all physical activity. This can be accumulated as different underlying intensity profiles. Although volume and intensity have been studied in isolation, less is known about their joint association with health. We examined this association with body-fatness in a population-based sample of middle-aged British women […]
Related Product: Actiheart
Publication Date: March 28, 2021
Resting heart rate as a biomarker for tracking change in cardiorespiratory fitness of UK adults: The Fenland Study
Aims Resting heart rate (RHR) is inversely associated with cardiorespiratory fitness (CRF) but few studies have investigated the nature of this relationship in large population samples. We examined the association between RHR and CRF in UK adults and explored factors that may influence this relationship. Methods and Results In a population-based sample of 5,143 men […]
Related Product: Actiheart
Publication Date: July 2, 2020
A combination of metabolites predicts adherence to the Mediterranean diet pattern and its associations with insulin sensitivity and lipid homeostasis in the general population: the Fenland Study, United Kingdom
Background Cardiometabolic benefits of the Mediterranean diet have been recognized, but underlying mechanisms are not fully understood. Objectives We aimed to investigate how the Mediterranean diet could influence circulating metabolites and how the metabolites could mediate the associations of the diet with cardiometabolic risk factors. Methods Among 10,806 participants (58.9% women, mean age = 48.4 […]
Related Product: Actiheart
Publication Date: March 1, 2020
Associations of types of dairy consumption with adiposity: cross-sectional findings from over 12 000 adults in the Fenland Study
Evidence from randomised controlled trials supports beneficial effects of total dairy products on body weight, fat and lean mass, but evidence on associations of dairy types with distributions of body fat and lean mass is limited. We aimed to investigate associations of total and different types of dairy products with markers of adiposity, and body […]
Related Product: Actiheart
Publication Date: July 25, 2019
Sociodemographic, lifestyle and behavioural factors associated with consumption of sweetened beverages among adults in Cambridgeshire, UK: the Fenland Study
Objective We aimed to identify socio-demographic, lifestyle and behavioural determinants of consumption of sugar-sweetened beverages (SSBs) and artificially-sweetened beverages (ASBs) in adults in Cambridgeshire, UK. Design Cross-sectional data were obtained from a cohort of 9,991 adults born between 1950 and 1975. A food frequency questionnaire was used to assess consumption of beverages and other dietary […]
Related Product: Actiheart
Publication Date: October 20, 2017
A self-paced walk test for individual calibration of heart rate to energy expenditure
Introduction Estimating free-living physical activity (PA) with continuous heart rate (HR) monitoring is challenging due to individual variation in the relationship between HR and energy expenditure. This variation can be captured through individual calibration with graded exercise tests, but structured tests with prescribed load requires medical screening and are not always feasible in population settings. […]
Related Product: Actiheart
Publication Date: September 1, 2023
UDAMA: Unsupervised Domain Adaptation through Multi-discriminator Adversarial Training with Noisy Labels Improves Cardio-fitness Prediction
Deep learning models have shown great promise in various healthcare monitoring applications. However, most healthcare datasets with high-quality (gold-standard) labels are small-scale, as directly collecting ground truth is often costly and time-consuming. As a result, models developed and validated on small-scale datasets often suffer from overfitting and do not generalize well to unseen scenarios. At […]
Related Product: Actiheart
Publication Date: July 31, 2023
Longitudinal cardio-respiratory fitness prediction through wearables in free-living environments
Cardiorespiratory fitness is an established predictor of metabolic disease and mortality. Fitness is directly measured as maximal oxygen consumption (VO2max), or indirectly assessed using heart rate responses to standard exercise tests. However, such testing is costly and burdensome because it requires specialized equipment such as treadmills and oxygen masks, limiting its utility. Modern wearables capture […]
Related Product: Actiheart
Publication Date: December 2, 2022
Independent and combined associations between fast-food outlet exposure and genetic risk for obesity: a population-based, cross-sectional study in the UK
Background Characteristics of the built environment, such as neighbourhood fast-food outlet exposure, are increasingly recognised as risk factors for unhealthy diet and obesity. Obesity also has a genetic component, with common genetic variants explaining a substantial proportion of population-level obesity susceptibility. However, it is not known whether and to what extent associations between fast-food outlet […]
Related Product: Actiheart
Publication Date: February 15, 2021
Associations of active commuting with body fat and visceral adipose tissue: a cross-sectional population based study in the UK
The promotion of active travel (walking and cycling) is one promising approach to prevent the development of obesity and related cardio-metabolic disease. However the associations between active travel and adiposity remain uncertain. We used the Fenland study (a population based-cohort study; Cambridgeshire, UK, 2005–15) to describe the association of commuting means with DEXA measured body […]
Related Product: Actiheart
Publication Date: January 1, 2018
Interplay of socioeconomic status and supermarket distance is associated with excess obesity risk: a UK cross-sectional study
U.S. policy initiatives have sought to improve health through attracting neighborhood supermarket investment. Little evidence exists to suggest that these policies will be effective, in particular where there are socioeconomic barriers to healthy eating. We measured the independent associations and combined interplay of supermarket access and socioeconomic status with obesity. Using data on 9702 UK […]
Related Product: Actiheart
Publication Date: October 25, 2017
Associations between exposure to takeaway food outlets, takeaway food consumption, and body weight in Cambridgeshire, UK: population based, cross sectional study
Objectives To examine the association between environmental exposure to takeaway food outlets, takeaway food consumption, and body weight, while accounting for home, work place, and commuting route environments. Design Population based, cross sectional study, using data on individual participants’ diet and weight, and objective metrics of food environment exposure. Participants Working adults participating in the […]
Related Product: Actiheart
Publication Date: March 13, 2014
Impact of personalised feedback about physical activity on change in objectively measured physical activity (the FAB study): a randomised controlled trial
Background Low levels of physical activity are a major public health concern, and interventions to promote physical activity have had limited success. Whether or not personalised feedback about physical activity following objective measurement motivates behaviour change has yet to be rigorously examined. Methods And Findings: In a parallel group, open randomised controlled trial, 466 healthy […]
Related Product: Actiheart
Publication Date: September 16, 2013
Effect of communicating genetic and phenotypic risk for type 2 diabetes in combination with lifestyle advice on objectively measured physical activity: protocol of a randomised controlled trial
Background Type 2 diabetes (T2D) is associated with increased risk of morbidity and premature mortality. Among those at high risk, incidence can be halved through healthy changes in behaviour. Information about genetic and phenotypic risk of T2D is now widely available. Whether such information motivates behaviour change is unknown. We aim to assess the effects […]
Related Product: Actiheart
Publication Date: June 18, 2012
Randomised controlled trial of the effects of physical activity feedback on awareness and behaviour in UK adults: the FAB study protocol
Background While there are increasing data implicating poor recognition of physical inactivity as a potential barrier to healthy behaviour change, the efficacy of feedback to promote physical activity is uncertain. Using a randomised controlled trial nested within a population-based cohort study, we plan to test three variations of physical activity feedback against a control group. […]
Related Product: Actiheart
Publication Date: March 18, 2010
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