Associations of novel 24-h accelerometer-derived metrics with adiposity in children and adolescents

Dygrýn, Jan; Medrano, María; Molina-García, Pablo; Rubín, Lukáš; Jakubec, Lukáš; Janda, David; Gába, Aleš

doi:10.1186/s12199-021-00987-5

Cited by 3 publications

(3 citation statements)

References 40 publications

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“…Battery life and capacity are significantly higher in the classic GPS receivers. Holux (1050 mAh) and Qstarz (1000 mAh) with Li-ion battery can last for more than 24 h of continuous recording, which is very important for capturing daily travel behaviors [44,45]. In comparison, Garmin introduces a smart watch battery life of 13 h (with GPS on), based on practical verification, rather than within 10 h. When considering the purchase price of the devices, the Holux device (~$60) and Qstarz (~$100) are significantly cheaper than the Garmin smart watch ($200+) as of 2021.…”

Section: Discussionmentioning

confidence: 99%

Smart Watch Versus Classic Receivers: Static Validity of Three GPS Devices in Different Types of Built Environments

Vorlíček

Schipperijn

Burian

et al. 2021

Sensors

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In order to study the relationship between human physical activity and the design of the built environment, it is important to measure the location of human movement accurately. In this study, we compared an inexpensive GPS receiver (Holux RCV-3000) and a frequently used Garmin Forerunner 35 smart watch, with a device that has been validated and recommended for physical activity research (Qstarz BT-Q1000XT). These instruments were placed on six geodetic points, which represented a range of different environments (e.g., residential, open space, park). The coordinates recorded by each device were compared with the known coordinates of the geodetic points. There were no differences in accuracy among the three devices when averaged across the six sites. However, the Garmin was more accurate in the city center and the Holux was more accurate in the park and housing estate areas compared to the other devices. We consider the location accuracy of the Holux and the Garmin to be comparable to that of the Qstarz. Therefore, we consider these devices to be suitable instruments for locating physical activity. Researchers must also consider other differences among these devices (such as battery life) when determining if they are suitable for their research studies.

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Section: Discussionmentioning

confidence: 99%

Smart Watch Versus Classic Receivers: Static Validity of Three GPS Devices in Different Types of Built Environments

Vorlíček

Schipperijn

Burian

et al. 2021

Sensors

Self Cite

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“…In the newest literature, views on solving the problem of overweight and fighting obesity signalled the strong relationship of different interacting factors. The aim of numerous studies was to explore the independent connections between many types of behaviour and lifestyle (physical activity, MVPA-Moderate to Vigorous Physical Activity, sleep, time spent in front of the screen, and diet) and overweight and obesity in children [71][72][73][74]. General 24 h guidelines on movement were defined as 9-11 h of sleep, ≤2 h per day in front of the screen, and at least 60 min per day of MVPA.…”

Section: Discussionmentioning

confidence: 99%

Assessment of the Impact of Increased Physical Activity on Body Mass and Adipose Tissue Reduction in Overweight and Obese Children

Nowaczyk

Cieślik

Waszak³

2023

Children

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(1) Background: Within the last 30 years, growing rates of child overweight and obesity have been observed as a very concerning phenomenon in most countries worldwide. The research aim was to assess what effect increased physical activity has on reducing body mass and adipose tissue in children between 10 and 11 years of age as well as to answer the question of whether physical activity could be considered as a factor in preventing child overweight and obesity when maintaining their existing diet and lifestyle. (2) Material and methods: There were 419 sports class primary school pupils in the experimental group who, in addition to four obligatory weekly physical education hours, attended six training hours. The control group comprised 485 children from parallel non-sports classes. In all pupils, height and weight measurements as well as physical fitness measurements were taken twice, at the beginning and end of the school year. Cole’s method was used to assess the children’s normal body weight. With the help of this method, children with excessive body weight were selected from the entire study group (N = 904), who additionally had skinfolds and adipose tissue measured using the BIA electrical bioimpedance method. The obtained results were interpreted using the variance analysis for repeated measurements and LSD test. (3) Results: The number of children with excessive body mass after 10 months of increased physical activity decreased (in the case of overweight: p = 0.0014, obesity: p = 0.0022), as did their skinfolds (p ≤ 0.001) and body fat (p ≤ 0.001), while their physical fitness considerably improved compared to the control group. (4) Conclusions: The introduction of increased physical activity in the experimental group children when maintaining their existing diet and lifestyle contributed to reducing their obesity and overweight and, at the same time, proved to be an effective factor in the process of decreasing their excessive body mass.

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“…Based on our previous research on 24-h movement behaviours [ 30 , 31 ], the covariates include sex, maternal weight status, maternal education level, and accelerometer wear time. Maternal weight status was calculated based on self-reported BMI.…”

Section: Methodsmentioning

confidence: 99%

A 24-h activity profile and adiposity among children and adolescents: Does the difference between school and weekend days matter?

et al. 2023

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Background Twenty-four-hour movement behaviours are gaining attention in the research community. However, no study has addressed how 24-h activity profiles vary between structured and less structured days and whether an unfavourable activity profile is associated with childhood obesity. We aimed to analyse differences between school day and weekend day 24-h activity profiles and their associations with adiposity indicators among children and adolescents. Methods Participants were 382 children and 338 adolescents who wore wrist accelerometers for 24 hours a day for seven consecutive days. The 24-h activity profile expressed by the average acceleration (AvAcc) and intensity gradient (IG) were estimated from multi-day raw accelerometer data. Adiposity indicators included body mass index (BMI) z-score, fat mass percentage (FM%), fat mass index (FMI), and visceral adipose tissue (VAT). Multiple linear regression of activity profile metrics and adiposity indicators was performed separately for school and weekend days. Results Weekend days AvAcc and IG were lower compared to school days in both age groups (p <0.001 for all). Specifically, AvAcc was lower by 9.4% and 11.3% in children and adolescents, respectively. IG on weekend days was lower (more negative) by 3.4% in children and 3.1% in adolescents. Among children, on school days AvAcc and IG were negatively associated with FM%, FMI, and VAT, whilst on weekend days AvAcc was positively associated with BMI z-score, FMI, and VAT (p < 0.05 for all). Among adolescents, negative associations were found between weekend day AvAcc and IG and FM% and FMI (p < 0.05 for all), respectively. Conclusions This study confirms the importance of 24-h activity profile as a potentially protective factor against excess adiposity. The variability of movement behaviours during structured and less structured days should be considered when optimizing the 24-h movement behaviours to prevent childhood obesity.

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Associations of novel 24-h accelerometer-derived metrics with adiposity in children and adolescents

Cited by 3 publications

References 40 publications

Smart Watch Versus Classic Receivers: Static Validity of Three GPS Devices in Different Types of Built Environments

Smart Watch Versus Classic Receivers: Static Validity of Three GPS Devices in Different Types of Built Environments

Assessment of the Impact of Increased Physical Activity on Body Mass and Adipose Tissue Reduction in Overweight and Obese Children

A 24-h activity profile and adiposity among children and adolescents: Does the difference between school and weekend days matter?

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