Validity of hip-mounted uniaxial accelerometry with heart-rate monitoring vs. triaxial accelerometry in the assessment of free-living energy expenditure in young children: the IDEFICS Validation Study

Ojiambo, Robert; Konstabel, Kenn; Veidebaum, Toomas; Reilly, John J.; Verbestel, Vera; Huybrechts, Inge; Sioen, Isabelle; Moreno, Luís A.; Vicente-Rodríguez, Germán; Bammann, Karin; Tubić, Bojan; Mårild, Staffan; Pitsiladis, Yannis

doi:10.1152/japplphysiol.01290.2011

Cited by 24 publications

(21 citation statements)

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“…This observation is in disagreement with the findings of Ojiambo et al (32) , who reported that a higher amount of the variation in AEE and TEE in children aged 4-10 years was explained when adding both heart rate and counts, assessed by means of a uniaxial accelerometer (ActiTrainer), to the same model.…”

Section: Discussioncontrasting

confidence: 99%

Evaluation of Actiheart and a 7 d activity diary for estimating free-living total and activity energy expenditure using criterion methods in 1·5- and 3-year-old children

2014

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Accurate and easy-to-use methods to assess free-living energy expenditure in response to physical activity in young children are scarce. In the present study, we evaluated the capacity of (1) 4 d recordings obtained using the Actiheart (mean heart rate (mHR) and mean activity counts (mAC)) to provide assessments of total energy expenditure (TEE) and activity energy expenditure (AEE) and (2) a 7 d activity diary to provide assessments of physical activity levels (PAL) using three sets of metabolic equivalent (MET) values (PAL Torun , PAL Adolph and PAL Ainsworth ) in forty-four and thirty-one healthy Swedish children aged 1·5 and 3 years, respectively. Reference TEE, PAL ref and AEE were measured using criterion methods, i.e. the doubly labelled water method and indirect calorimetry. At 1·5 years of age, mHR explained 8 % (P¼0·006) of the variation in TEE above that explained by fat mass and fat-free mass. At 3 years of age, mHR and mAC explained 8 (P¼ 0·004) and 6 (P¼0·03) % of the variation in TEE and AEE, respectively, above that explained by fat mass and fat-free mass. At 1·5 and 3 years of age, average PAL Ainsworth values were 1·44 and 1·59, respectively, and not significantly different from PAL ref values (1·39 and 1·61, respectively). By contrast, average PAL Torun (1·5 and 3 years) and PAL Adolph (3 years) values were lower (P, 0·05) than the corresponding PAL ref values. In conclusion, at both ages, Actiheart recordings explained a small but significant fraction of freeliving energy expenditure above that explained by body composition variables, and our activity diary produced mean PAL values in agreement with reference values when using MET values published by Ainsworth.Key words: Activity diary: Accelerometer: Heart rate recording: Doubly labelled water According to the WHO, childhood obesity is one of the most serious public health challenges of the twenty-first century (1) .The mechanisms underlying overweight and obesity in young children are largely unknown, but low physical activity levels (PAL) are likely to be important (2,3) . However, investigating PAL in young children is difficult, as accurate and easy-touse methods for assessing energy expenditure in response to physical activity during free-living conditions are scarce for this population group. Developing such methods requires the measurements of total energy expenditure (TEE) by means of the doubly labelled water method in combination with the measurements of resting energy metabolism using indirect calorimetry. Conducting such studies in young children represents a challenge. Furthermore, there is incomplete knowledge regarding how very young children differ from older children and adults with regard to the relevant aspects of exercise physiology and components of energy metabolism. A few attempts have been made to develop methods for assessing energy expenditure in response to physical activity in preschool children (4 -8) ; however, no attempts have been made previously for a group of children aged 3 years or less.Activity...

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Section: Discussioncontrasting

confidence: 99%

Evaluation of Actiheart and a 7 d activity diary for estimating free-living total and activity energy expenditure using criterion methods in 1·5- and 3-year-old children

2014

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“…One finding in this thesis is that Actiheart recordings explained only a small fraction (6-8 %) of free-living energy expenditure above that explained by body composition variables. No comparable data exist for this age group; however, the results are in good agreement with those obtained in a study in 4-10-year-old children (85) . Explaining only an additional 6-8 % of the variation in AEE or TEE might seem low, but how much a monitor should be able to explain in order to be useful for practical application is a matter of discussion.…”

Section: Assessment Of Physical Activity and Energy Intake In Young Csupporting

confidence: 72%

Development of body composition and its relationship with physical activity in healthy Swedish children : A longitudinal study until 4.5 years of age including evaluation of methods to assess physical activity and energy intake

Henriksson¹

2015

Linköping University Medical Dissertations

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Childhood obesity according to the World Health Organization is one of the most serious public health challenges of the 21st century. The proportion of childhood obesity is high both globally and in Sweden. This is of great concern since obese children tend to stay obese in adulthood. In order to develop strategies to prevent early childhood obesity more knowledge is needed regarding factors explaining why children become overweight and obese. Preventive strategies require accurate and easy-to-use methods to assess physical activity in response to energy expenditure as well as energy intake in young children, but such methods are largely lacking or have shown limited accuracy. The aims of this thesis were: 1) to describe the longitudinal development of body composition from 1 week to 4.5 years of age; 2) to study relationships between measures of body composition and the physical activity level (PAL) at 1.5 and 3 years of age; 3) to evaluate if heart rate recording and movement registration using Actiheart can capture variations in total energy expenditure (TEE) and activity energy expenditure (AEE) at 1.5 and 3 years; 4) to evaluate the potential of a 7-day activity diary to assess PAL at 1.5 and 3 years of age; 5) to evaluate a new tool (TECH) using mobile phones for assessing energy intake at 3 years of age. Healthy children were investigated at 1 and 12 weeks (n=44), at 1.5 (n=44), 3 (n=33) and 4.5 (n=26) years of age. Body composition was measured using air-displacement plethysmography at 1 and 12 weeks and at 4.5 years of age. At 1.5 and 3 years, body composition, TEE, PAL and AEE were assessed using the doubly labelled water method and indirect calorimetry. Heart rate and movements were recorded using Actiheart (four days) and physical activities were registered using the 7-day diary. Energy intake was assessed using TECH during one complete 24-hour period. Average percentage of total body fat (TBF) and average fat mass index (FMI) were higher (+3 to +81 %), while fat-free mass index (FFMI) was slightly lower (-2 to -9 %), in children in the study from 12 weeks until 4.5 years of age when compared to corresponding reference values. A relationship between TBF% and PAL was found both at 1.5 and 3 years of age. At 3 years, but not at 1.5 years, this could be explained by a relationship between PAL and FFMI. Actiheart recordings explained a significant but small fraction (8%) of the variation in free-living TEE at 1.5 and 3 years, and in AEE (6 %) at 3 years, above that explained by body composition variables. At 1.5 and 3 years of age, PAL estimated by means of the activity diary using metabolic equivalent (MET) values by Ainsworth et al. was not significantly different from reference PAL, but the accuracy for individuals was low. Average energy intake assessed by TECH was not significantly different from TEE. However, the accuracy for individuals was poor. The results of this thesis suggest that 1) The higher body fatness of the children in the study compared to the corresponding reference values may indicat...

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“…15 A minimum duration of 6 h monitoring time per day was required to achieve proper reliability, 16 whereas the epoch of sampling was set on 15 s, where non-wear time was defined as at least 20 min of consecutive zeroes. The duration of moderate-to-vigorous physical activity (MVPA) was determined according to the cut-offs of Evenson 17 (see Konstabel et al ; 18 this issue).…”

Section: Methodsmentioning

confidence: 99%

Adherence to the obesity-related lifestyle intervention targets in the IDEFICS study

et al. 2014

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Background/objectives:To address behaviours associated with childhood obesity, certain target values are recommended that should be met to improve children's health. In the IDEFICS (Identification and prevention of Dietary- and lifestyle-induced health Effects in Children and infantS) study such lifestyle recommendations were conveyed as six key messages. Here, we investigate the adherence of European children to these messages.Methods:The IDEFICS intervention was based on the intervention mapping approach with the following six targets: increase water consumption (to replace sugar-containing beverages), increase fruit/vegetable consumption, reduce daily screen time, increase daily physical activity, improve the quality of family life and ensure adequate sleep duration. Internationally recommended target values were applied to determine the prevalence of children meeting these targets.Results:In a cohort of 18 745 children participating in the IDEFICS baseline survey or newly recruited during follow-up, data on the above lifestyle behaviours were collected for a varying number of 8302 to 17 212 children. Information on all six behaviours was available for 5140 children. Although 52.5% of the cohort was classified in the highest category of water consumption, only 8.8% met the target of an intake of fruits/vegetables five times a day. The prevalence of children adhering to the recommendation regarding total screen time—below 1 h for pre-school children and 2 h for school children—was 51.1%. The recommended amount of at least 60 min of moderate-to-vigorous physical activity per day was fulfilled by 15.2%. Family life of the child measured by various indicators was considered as satisfactory in 22.8%. Nocturnal sleep duration of 11 (10) hours or more in pre-school (school) children was achieved by 37.9%. In general, children in northern countries and younger children showed better adherence to the recommendations. Only 1.1% of the children adhered to at least five of these recommendations.Conclusions:Current adherence of children to lifestyle recommendations to prevent childhood obesity is low where observed differences with respect to country, age and gender call for targeted intervention.

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Validity of hip-mounted uniaxial accelerometry with heart-rate monitoring vs. triaxial accelerometry in the assessment of free-living energy expenditure in young children: the IDEFICS Validation Study

Cited by 24 publications

References 36 publications

Evaluation of Actiheart and a 7 d activity diary for estimating free-living total and activity energy expenditure using criterion methods in 1·5- and 3-year-old children

Evaluation of Actiheart and a 7 d activity diary for estimating free-living total and activity energy expenditure using criterion methods in 1·5- and 3-year-old children

Development of body composition and its relationship with physical activity in healthy Swedish children : A longitudinal study until 4.5 years of age including evaluation of methods to assess physical activity and energy intake

Adherence to the obesity-related lifestyle intervention targets in the IDEFICS study

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