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. Filter by product, application, keyword, author or use free text search to locate your area of interest.

  • Application

  • Keywords

  • Author

Found 214 Results

Physical activity is associated with lower pulsatile stress but not carotid stiffness in children

The cardiovascular disease (CVD) process may begin early in life when accompanied by atherosclerotic risk factors. CVD risk factors in children are associated with stiffening of the large elastic arteries, a reflection of subclinical atherosclerosis. Physical activity is a preventative lifestyle strategy that may benefit arterial stiffness by attenuating the hemodynamic stress on the artery […]

Related Product: MotionWatch

Publication Date: March 12, 2021


Personalized ESM monitoring and feedback to support psychological treatment for depression: a pragmatic randomized controlled trial (Therap-i)

Background Major depressive disorder (MDD) is a highly prevalent mental disorder with large disease burden, high levels of relapse or persistence, and overall suboptimal outcomes of protocolized pharmacological and psychotherapeutic treatments. There is an urgent need to improve treatment effectiveness, possibly through systematic treatment personalization. In psychotherapeutic treatments this can be achieved by case conceptualization. […]

Related Product: MotionWatch

Publication Date: March 10, 2021


Differences in Daytime Activity Levels and Daytime Sleep Between Night and Day Duty: An Observational Study in Italian Orthopedic Nurses

Working nonstandard work schedules is often associated with increased sedentary behavior and risk of sleep disorders. Night shift workers are prone to accumulating sleep debt, which they recover by sleeping during the day. The effect on daytime activity levels is unknown. The present study aims to objectively assess whether daytime sleep could affect daytime activity […]

Related Product: MotionWatch

Publication Date: February 26, 2021


Isotemporal Substitution of Time Between Sleep and Physical Activity: Associations With Cardiovascular Risk Factors in Early Rheumatoid Arthritis

Objective We aimed to determine relationships between objectively measured nightly sleep, sedentary behavior (SB), light physical activity (LPA), and moderate to vigorous physical activity (MVPA) with risk factors for cardiovascular disease (CVD) in patients with early rheumatoid arthritis (RA). Furthermore, we aimed to estimate consequences for these risk factors of theoretical displacements of 30 minutes […]

Related Product: Actiheart

Publication Date: February 11, 2021


The independent and interactive associations of physical activity intensity and vitamin D status with bone mineral density in prepubertal children: the PANIC Study

Summary It is unclear how physical activity intensity and vitamin D status are related to bone health in prepubertal children. We found positive associations between vitamin D status and moderate-to-vigorous physical activity with bone in boys and girls. This highlights the importance of lifestyle factors for skeletal health prepuberty. Introduction The sex-specific independent and interactive […]

Related Product: Actiheart

Publication Date: February 5, 2021


Feasibility, Reliability, and Validity of the MotionWatch 8 to Evaluate Physical Activity Among Older Adults With and Without Cognitive Impairment in Assisted Living Settings

This study tested the feasibility, reliability, and validity of the MotionWatch 8 among assisted living residents with and without cognitive impairment. Data from the Dissemination and Implementation of Function Focused Care in Assisted Living Using the Evidence Integration Triangle study were used. The sample included 781 individuals from 85 facilities with a mean age of […]

Related Product: MotionWatch

Publication Date: December 25, 2020


Testing the Implementation of Function-focused Care in Assisted Living Settings

Objectives The purpose of this study was to evaluate the Function-Focused Care for Assisted Living Using the Evidence Integration Triangle (FFC-AL-EIT) intervention. Design FFC-AL-EIT was a randomized controlled pragmatic trial including 85 sites and 794 residents. Intervention FFC-AL-EIT was implemented by a Research Nurse Facilitator working with a facility champion and stakeholder team for 12 […]

Related Product: MotionWatch

Publication Date: October 31, 2020


A phase 2a randomised, double-blind, placebo-controlled, parallel-group, add-on clinical trial of ebselen (SPI-1005) as a novel treatment for mania or hypomania

Rationale Lithium is an effective prophylactic and anti-manic treatment in bipolar disorder; however, its use is declining through perceived poor tolerance and toxicity. Lithium inhibits inositol monophosphatase (IMPase), a probable key therapeutic mechanism. The anti-inflammatory drug, ebselen, also inhibits IMPase and appears well-tolerated and safe. Objectives To assess the efficacy of adjunctive ebselen in mania […]

Related Product: MotionWatch

Publication Date: September 9, 2020


Multiple sclerosis-related fatigue: the role of impaired corticospinal responses and heightened exercise fatigability

It is unclear whether motor fatigability and perceived fatigue share a common pathophysiology in people with multiple sclerosis (PwMS). This cross-sectional investigation explored the relationship between the mechanisms of motor fatigability from cycling and fatigue severity in PwMS. Thirteen highly fatigued (HF) and thirteen non-fatigued (LF) PwMS, and thirteen healthy controls (CON) completed a step-test […]

Related Product: MotionWatch

Publication Date: September 2, 2020


Determinants of physical activity in young wheelchair-user with spina bifida

Objective: To explore associations between physical activity and peak oxygen uptake (VO2peak), age, sex, and Hoffer classification in young wheelchair-users with spina bifida. Design: Exploratory study. Subjects: Dutch children (age 5-19 years) with spina bifida who use a manual wheelchair. Methods: For the dependent variable physical activity, data from 2 physical activity monitors were analysed: […]

Related Product: Actiheart

Publication Date: August 17, 2020


Using Mobile Electroencephalography and Actigraphy to Diagnose Attention-Deficit/Hyperactivity Disorder: Case-Control Comparison Study

Background: Children with attention-deficit/hyperactivity disorder (ADHD), a neurobehavioral disorder, display behaviors of inattention, hyperactivity, or impulsivity, which can affect their ability to learn and establish proper family and social relationships. Various tools are currently used by child and adolescent psychiatric clinics to diagnose, evaluate, and collect information and data. The tools allow professional physicians to […]

Related Product: MotionWatch

Publication Date: June 19, 2020


A pragmatic approach to the comparison of wrist-based cutpoints of physical activity intensity for the MotionWatch8 accelerometer in children

Background A variety of wearable monitors are available for objectively assessing physical activity but there is a lack of established values for the activity intensity of MotionWatch8 (MW8) and a similar lack of studies on comparability across devices. Our study aimed to establish activity intensity cutpoints for the MW8 accelerometer in children, which are necessary […]

Related Product: MotionWatch

Publication Date: June 19, 2020


Leptin and the Retinal Microvasculature in Young Black and White Adults: The African-PREDICT Study

Background Leptin is a vasoactive peptide that has been linked to diseases associated with macrovascular deterioration. What is still uncertain is its involvement in the microvasculature. Since microvascular changes are presumed to precede macrovascular deterioration, we examined whether measures of the retinal microvasculature are associated with leptin in healthy, young Black and White individuals. Method […]

Related Product: Actiheart

Publication Date: June 13, 2020


Exploring human trainability: Design and rationale of studies of twin responses to understand exercise as a THerapy (STRUETH) study

Background Exercise confers myriad health benefits and physical inactivity is a modifiable risk factor for many non-communicable chronic diseases. However, individual responsiveness to guideline-based exercise programs is idiosyncratic for health and fitness outcomes. It is not known whether the response of individuals to distinct exercise modalities tend to be concordant or whether there is a […]

Related Product: Actiheart

Publication Date: June 9, 2020


The day-to-day reliability of peak fat oxidation and FATMAX

PURPOSE:Prior studies exploring the reliability of peak fat oxidation (PFO) and the intensity that elicits PFO (FATMAX) are often limited by small samples. This study characterised the reliability of PFO and FATMAX in a large cohort of healthy men and women. METHODS:Ninety-nine adults [49 women; age: 35 (11) years; [Formula: see text]O2peak: 42.2 (10.3) mL·kg […]

Related Product: Actiheart

Publication Date: June 1, 2020


Skeletal muscle of females and males with constitutional thinness: a low intramuscular lipid content and oxidative profile

Constitutional thinness (CT) is a non-pathological state of underweight. The present study aimed to explore skeletal muscle energy storage in individuals with constitutional thinness and to further characterize muscle phenotype at baseline and in response to overfeeding. Thirty subjects with CT (15 females, 15 males) and 31 normal-weight control subjects (16 females, 15 males) participated […]

Related Product: Actiheart

Publication Date: June 1, 2020


Rationale and Study Design of OUTSTEP‐HF: A Randomized Controlled Study to Assess the Effect of Sacubitril/Valsartan and Enalapril on Physical Activity measured by Accelerometry in Patients with Heart Failure with Reduced Ejection Fraction

Aim In PARADIGM‐HF, sacubitril/valsartan demonstrated superiority to enalapril in reducing mortality and morbidity in patients with heart failure (HF) with reduced ejection fraction (HFrEF). Several patient‐centred outcomes like improved physical activity and quality of life (QoL) have been emphasised as important therapy goals in HF management. OUTSTEP‐HF has been designed to evaluate the effects of […]

Related Product: MotionWatch

Publication Date: May 28, 2020


Blood pressure and nitric oxide synthesis capacity in physically active and inactive groups: the SABPA study

Physical activity affects the vasculature through mechanisms related to nitric oxide bioavailability, oxidative stress, and inflammation; with endothelial function at the centre of this triad. In a South African setting, with the prevalence of hypertension and physical inactivity being alarmingly high, we aimed to investigate relationships of vascular function with markers of oxidative stress, inflammation […]

Related Product: Actiheart

Publication Date: May 7, 2020


The effects of a 2-year physical activity and dietary intervention on plasma lipid concentrations in children: the PANIC Study

Purpose We studied the effects of a physical activity and dietary intervention on plasma lipids in a general population of children. We also investigated how lifestyle changes contributed to the intervention effects. Methods We carried out a 2-year controlled, non-randomized lifestyle intervention study among 504 mainly prepubertal children aged 6–9 years at baseline. We assigned […]

Related Product: Actiheart

Publication Date: April 24, 2020


Bidirectional associations of momentary affect with physical activity and sedentary behaviors in working adults

Background Affective experiences and movement-based behaviors form a system that has been shown to influence exercise adherence and mental health outcomes. Little is known about the naturalistic dynamics of the reciprocal associations in this system. Purpose We examined the time intervals at which momentary affect precedes and follows movement-based behaviors in everyday life. Methods A […]

Related Product: Actiheart

Publication Date: April 1, 2020


Quantifying Habitual Physical Activity and Sedentariness in Older Adults—Different Outcomes of Two Simultaneously Body-Worn Motion Sensor Approaches and a Self-Estimation

Applicable and accurate assessment methods are required for a clinically relevant quantification of habitual physical activity (PA) levels and sedentariness in older adults. The aim of this study is to compare habitual PA and sedentariness, as assessed with (1) a wrist-worn actigraph, (2) a hybrid motion sensor attached to the lower back, and (3) a […]

Related Product: MotionWatch

Publication Date: March 28, 2020


Building a device-free system to prevent fractures in older people with musculoskeletal ambulatory disability symptom complex

This study aimed to measure the physical ability to cope with daily life and perceptions of older people at high risk of sarcopenia. We surveyed parameters to predict the risk of sarcopenia and factors worsening the condition. We used a pretest among five participants to check the relevance and validation of measures for (1) physical […]

Related Product: MotionWatch

Publication Date: March 15, 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


Chronobiological aspects of sleep restriction modulate subsequent spontaneous physical activity

Purpose First evidence suggests that chronobiological aspects of sleep restriction affect metabolic conditions. Our aim was to investigate whether spontaneous free-living physical activity likewise is affected by chronobiological timing of short sleep. Methods In an experimental randomized, balanced cross-over design, eleven healthy, normal-weight (BMI: 23.9 ± 0.4 kg/m2) men were evaluated. Physical activity was assessed […]

Related Product: MotionWatch

Publication Date: March 1, 2020


Child-related and parental predictors for thelarche in a general population of girls: the PANIC study

Background Obesity has been associated with earlier thelarche, whereas other predictors for it remain unclear. Methods We studied child-related and parental predictors for earlier thelarche in 195 girls aged 6–8 years followed up for 2 years. A physician evaluated breast development by inspection and palpation. Body fat percentage (BF%) was measured by dual-energy X-ray absorptiometry, […]

Related Product: Actiheart

Publication Date: February 20, 2020


Distinct inflammatory mediator patterns in young black and white adults: The African-predict study

Objective Inflammatory mediators have been implicated in the early stages of cardiovascular disease development, including hypertension. Since global reports reflect a higher hypertension prevalence in black than white populations, we hypothesise the involvement of specific inflammatory mediators. We therefore compared a detailed range of 22 inflammatory mediators between young black and white adults, and determined […]

Related Product: Actiheart

Publication Date: February 1, 2020


Reliability and Validity of the Checklist for Function-Focused Care in Service Plans

The purpose of this study was to test the reliability and validity of the Checklist for Function-Focused Care in Service Plans. Function-focused care is a care approach that optimizes function and physical activity during all care interactions. This study used baseline data from the first cohort of the study titled Dissemination and Implementation of Function-Focused […]

Related Product: MotionWatch

Publication Date: January 1, 2020


Physical activity in rheumatoid arthritis: relationship to cardiovascular risk factors, subclinical atherosclerosis, and disease activity

Objective: To investigate associations between physical activity and risk factors for cardiovascular disease (CVD), subclinical atherosclerosis, and disease activity in patients with early and long-standing rheumatoid arthritis (RA). Method: This cross-sectional study included 84 patients with early and 37 with long-standing RA (disease duration, mean ± sd: 1.4 ± 0.4 and 16.3 ± 2.3 years, […]

Related Product: Actiheart

Publication Date: January 1, 2020


Health promotion and cardiovascular risk reduction in people with spinal cord injury: physical activity, healthy diet and maintenance after discharge—protocol for a prospective national cohort study and a preintervention-postintervention study

ntroduction Spinal cord injury (SCI) predisposes those who suffer from it to physical inactivity and weight gain; consequently, death due to cardiovascular diseases is more frequent among people with SCI than in the general population. The literature documents a consensus about an interdisciplinary multimodal approach for the prevention and treatment of cardiovascular risk factors including […]

Related Product: Actiheart

Publication Date: December 31, 2019


Habitual physical activity is associated with lower fasting and greater glucose-induced GLP-1 response in men

Rationale The hormone glucagon-like peptide-1 (GLP-1) decreases blood glucose and appetite. Greater physical activity (PA) is associated with lower incidence of type 2 diabetes. While acute exercise may increase glucose-induced response of GLP-1, it is unknown how habitual PA affects GLP-1 secretion. We hypothesised that habitual PA associates with greater glucose-induced GLP-1 responses in overweight […]

Related Product: Actiheart

Publication Date: December 1, 2019


The impact of physical activity and function on falls in assisted living residents

The purpose of this study was to describe physical activity and function of older adults in assisted living communities and test the association between moderate and vigorous activity and falls. This study used baseline data from 393 participants from the first two cohorts in the Function-Focused Care in Assisted Living Using the Evidence Integration Triangle […]

Related Product: MotionWatch

Publication Date: December 1, 2019


Quality of life, physical activity and cardiorespiratory fitness in black African women: B-Healthy project

Purpose To study the associations between physical activity (PA), cardiorespiratory fitness (CRF), and health-related quality of life (HRQoL) in black African women from a low socioeconomic community in South Africa. Methods Black African women (n = 146) aged 35–75 years from a low socioeconomic community in South Africa participated in this study. We measured PA levels via […]

Related Product: Actiheart

Publication Date: November 26, 2019


Electrically assisted cycling for individuals with type 2 diabetes mellitus: protocol for a pilot randomized controlled trial

Background The global incidence of type 2 diabetes mellitus (T2DM) is increasing. Given the many complications associated with T2DM, effective management of the disease is crucial. Physical activity is considered to be a key component of T2DM management. However, people with T2DM are generally less physically active than individuals without T2DM and adherence to physical […]

Related Product: Actiheart

Publication Date: November 23, 2019


The accumulation of deficits approach to describe frailty

The advancing age of the participants of the European Prospective Investigation into Cancer and Nutrition (EPIC)—Potsdam study was the incentive to investigate frailty as a major parameter of ageing. The aim of this study was to develop a multidimensional tool to measure frailty in an ageing, free-living study population. The “accumulation of deficits approach” was […]

Related Product: Actiheart

Publication Date: October 15, 2019


Gender differences in function, physical activity, falls, medication use, and life satisfaction among residents in assisted living settings

The purpose of the current study was to test for gender differences among residents living in assisted living settings. This was a secondary data analysis using data from the first 64 facilities participating in the ongoing Function Focused Care for Assisted Living study using the Evidence Integration Triangle (FFC-AL-EIT). A total of 593 residents were […]

Related Product: MotionWatch

Publication Date: October 9, 2019


Association of Total Daily Physical Activity and Fragmented Physical Activity With Mortality in Older Adults

Importance Fragmented daily physical activity may be a sign of physiological decline that provides more powerful insight into impending mortality than total daily activity. Objective To compare and contrast the association between total daily activity and activity fragmentation, which encompasses activity bouts and duration, and mortality risk. Design, Setting, and Participants In this cohort study, […]

Related Product: Actiheart

Publication Date: October 2, 2019


An Indoor Therapeutic Garden for Behavioral Symptoms in Alzheimer’s Disease: A Randomized Controlled Trial

Background: Behavioral and psychological symptoms of dementia (BPSD) affect 60-90% of patients with Alzheimer’s disease (AD). Objective: To determine if environmental therapy is an effective strategy to reduce BPSD, we tested 163 patients with AD with Neuropsychiatric Inventory (NPI) before and after 6 months of an indoor therapeutic garden (TG) or standard environment. Methods: A […]

Related Product: Actiheart

Publication Date: October 1, 2019


Associations of physical activity, sedentary time, and cardiorespiratory fitness with heart rate variability in 6-to 9-year-old children: the PANIC study

Purpose To study the associations of physical activity (PA), sedentary time (ST), and cardiorespiratory fitness (CRF) with heart rate variability (HRV) in children. Methods The participants were a population sample of 377 children aged 6–9 years (49% boys). ST, light PA (LPA), moderate PA (MPA), vigorous PA (VPA), and moderate-to-vigorous PA (MVPA), and PA energy […]

Related Product: Actiheart

Publication Date: September 18, 2019


Home Monitoring to Track Activity and Sleep Patterns Among Older Adults: A Feasibility Study

Measuring changes in activity and sleep over time is important for research and practice. While commercially available home monitoring systems passively track these parameters, the feasibility, acceptability, and usefulness of new products need to be evaluated. We tested a commercially available system for providing long-term data on activity and sleep with 10 single women (mean […]

Related Product: MotionWatch

Publication Date: September 13, 2019


The effects of a single night of complete and partial sleep deprivation on physical and cognitive performance: A Bayesian analysis

This study investigated the effects of complete and partial sleep deprivation on multiple aspects of athletic performance. Ten males completed a cognitive function test, maximal handgrip strength, countermovement jump (CMJ) and a 15 min all out cycling test to assess aerobic performance. These tests were performed following 3 different sleep conditions; normal sleep (CON), a […]

Related Product: Actiheart

Publication Date: September 5, 2019


Physical activity and sedentary behaviour in children with spina bifida

Aim To describe active and sedentary time in children with spina bifida and to compare their physical activity on weekdays versus weekends. Method In this exploratory cross‐sectional study, data from 13 Canadian and 22 Dutch children with spina bifida (14 females, 21 males; mean age 10y 11mo, standard deviation [SD] 3y 6mo, range 5y 6mo–18y; […]

Related Product: Actiheart

Publication Date: August 30, 2019


LoRa Evaluation in Mobility Conditions for a Connected Smart Shoe Measuring Physical Activity

A strong and positive association between increased levels of physical activity, exercise participation and improved health in older adults emerges from research studies. It is consequently relevant to measure not only the amount of physical exercise performed during planned sessions, but also the level of activity all over the daytime. This paper presents a wearable […]

Related Product: MotionWatch

Publication Date: August 19, 2019


Revisiting the MotionWatch 8: Calibrating cut-points for measuring physical activity and sedentary behaviour among adults with stroke

Reduced moderate-to-vigorous physical activity (MVPA) and increased sedentary behavior (SB) are common following stroke, which can limit stroke recovery and contribute to greater cognitive decline. Hence, the MVPA and SB of adults with stroke should be measured concurrently using objective methods. One currently available method for objectively measuring MVPA and SB is the MotionWatch8© (MW8). […]

Related Product: MotionWatch

Publication Date: August 5, 2019


The Effects of an Adapted Community Sports Camp (“GAME ON”) on Functional Mobility, and Fitness in Children and Adolescents With Cerebral Palsy (CP)

Our interdisciplinary team has developed a community-based camp “GAME ON” that actively engages children and adolescents with CP in learning new motor skills and improving their functional mobility and fitness. We emphasize the activities used in the camp and the outcome measures to monitor participants’ progress. We present the results from a feasibility study that […]

Related Product: Actiheart

Publication Date: August 1, 2019


Physical Activity for Symptom Management in Women With Metastatic Breast Cancer: A Randomized Feasibility Trial on Physical Activity and Breast Metastases

Context Physical activity for women with early-stage breast cancer is well recognized for managing cancer-related symptoms and improving quality of life. While typically excluded from interventions, women with metastatic breast cancer may also benefit from physical activity. Objective To 1) determine the safety and feasibility of a physical activity program for women with metastatic breast […]

Related Product: Actiheart

Publication Date: July 30, 2019


Can psychomotor disturbance predict ECT outcome in depression?

Psychomotor symptoms are core features of melancholic depression. This study investigates whether psychomotor disturbance predicts the outcome of electroconvulsive therapy (ECT) and how the treatment modulates psychomotor disturbance. In 73 adults suffering from major depressive disorder psychomotor functioning was evaluated before, during and after ECT using the observer-rated CORE measure and objective measures including accelerometry […]

Related Product: MotionWatch

Publication Date: July 29, 2019


Variation in gravimetric correction factors for nephelometer-derived estimates of personal exposure to PM2. 5

Many portable monitors for quantifying mass concentrations of particulate matter air pollution rely on aerosol light scattering as the measurement method; however, the relationship between scattered light (what is measured) and aerosol mass concentration (the metric of interest) is a complex function of the refractive index, size distribution, and shape of the particles. In this […]

Related Product: Actiheart

Publication Date: July 1, 2019


Objectively assessed physical activity and weight status of primary school children in Germany with and without migration backgrounds. Public health

Objectives Many children are insufficiently active, and children with a migration background appear to be even less active and at a higher risk of developing obesity. This study evaluated the weight status, and the frequencies and intensities of objectively assessed physical activity (PA) of children with and without a migration background. Study design Cross-sectional study. […]

Related Product: Actiheart

Publication Date: June 27, 2019


Impact of Function Focused Care and Physical Activity on Falls in Assisted Living Residents

Background There continues to be a belief among nurses, patients, and families that physical activity increases the risk of falling. Purpose The purpose of this study was to test the hypothesis that controlling for age, function, cognition, medication use, gender, comorbidities, and cognition, residents who are exposed to Function Focused Care for Assisted Living (FFC-AL-EIT) […]

Related Product: MotionWatch

Publication Date: June 21, 2019


Is high aerobic workload at work associated with leisure time physical activity and sedentary behaviour among blue-collar workers? A compositional data analysis based on accelerometer data.

Objective: This study aimed to investigate the hypothesized negative association between duration of work time spent at a high relative aerobic workload and leisure time movement behaviours among blue-collar workers. Methods: This was a cross-sectional study based on heart rate and accelerometer data from 803 blue-collar workers (447 men and 356 women). Relative aerobic workload […]

Related Product: Actiheart

Publication Date: June 6, 2019


Page 1 of 5

UK & International customers

CamNtech Ltd.
Manor Farm
Fenstanton
Cambridgeshire
PE28 9JD, UK

US customers

CamNtech Inc.
630 Boerne Stage Airfield,
Boerne,
Texas 78006,
USA

Copyright

© 2020 CamNtech Ltd and CamNtech Inc

Company information

Registered in England No. 2221302
VAT No: GB486 3019 34


Privacy Policy