scholarly journals A proper reference metabolic equivalent value to assess physical activity intensity in Japanese female nurses

2019 ◽  
Vol 5 (1) ◽  
Author(s):  
Yuki Ideno ◽  
Kunihiko Hayashi ◽  
Jung Su Lee ◽  
Yukiko Miyazaki ◽  
Shosuke Suzuki
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Vigorous Physical Activity ◽  
Working Women ◽  
Physical Activity Intensity ◽  
Self Administration ◽  
Activity Intensity ◽  
Metabolic Equivalents ◽  
Epidemiological Surveys ◽  
Mcmc Simulation

Abstract Background Various questionnaires have been developed to assess physical activity, but only a few simple questionnaires are suitable for self-administration in large groups of midlife working women. This study examined the usefulness of the Japan Nurses’ Health Study (JNHS) questionnaire for self-administered physical activity surveys. Methods The JNHS physical activity questionnaire consisted of items covering seven degrees of intensity. The metabolic equivalents (METs) for the physical activity intensity of the questionnaire were estimated from energy expenditure as measured by a uniaxial accelerometer with the Markov Chain Monte Carlo (MCMC) simulation. The estimated METs were then assigned to the JNHS baseline survey data, and the total energy expenditure (TEE) and the time spent performing ≥3 METs hour of physical activity, called moderate to vigorous intensity physical activity (MVPA), were calculated. Results For working situations, application of the MCMC simulation resulted in estimated reference values of 1.2 METs for “sitting work”, 1.6 METs for “standing work”, 1.8 METs for “walking work”, and 4.5 METs for “heavy work”. For non-working situations, the estimated values were 1.1 METs for sedentary time, 2.4 METs for “moderate physical activity”, 4.4 METs for “vigorous physical activity”, and 9.4 METs for “very vigorous physical activity”. When these estimated METs were used, the mean TEE/day was 1808 kcal. This corresponded to − 3.0% of the TEE/day generated by the accelerometer. These estimated MET values showed similar results as a previous study measuring activity using the doubly-labeled water method. The number of hours per week of MVPA significantly decreased with age, which is also consistent with previous findings. Conclusions Estimated reference MET values in this study were similar to those in previous studies of Japanese women. The JNHS questionnaire is therefore useful for epidemiological surveys of midlife working women because it assigns estimated MET values as physical activity intensities.

scholarly journals Ability of RT3 Accelerometer Cut Points to Detect Physical Activity Intensity in Ambulatory Children With Cerebral Palsy

2014 ◽  
Vol 31 (4) ◽  
pp. 310-324 ◽  
Author(s):  
Jennifer Ryan ◽  
Michael Walsh ◽  
John Gormley
Keyword(s):  
Physical Activity ◽  
Cerebral Palsy ◽  
Vigorous Physical Activity ◽  
Accelerometer Data ◽  
Physical Activity Intensity ◽  
Cut Points ◽  
Cut Point ◽  
Activity Intensity ◽  
Metabolic Equivalents ◽  
Children With Cerebral Palsy

This study investigated the ability of published cut points for the RT3 accelerometer to differentiate between levels of physical activity intensity in children with cerebral palsy (CP). Oxygen consumption (metabolic equivalents; METs) and RT3 data (counts/min) were measured during rest and 5 walking trials. METs and corresponding counts/min were classified as sedentary, light physical activity (LPA), and moderate to vigorous physical activity (MVPA) according to MET thresholds. Counts were also classified according to published cut points. A published cut point exhibited an excellent ability to classify sedentary activity (sensitivity = 89.5%, specificity = 100.0%). Classification accuracy decreased when published cut points were used to classify LPA (sensitivity = 88.9%, specificity = 79.6%) and MVPA (sensitivity = 70%, specificity = 95–97%). Derivation of a new cut point improved classification of both LPA and MVPA. Applying published cut points to RT3 accelerometer data collected in children with CP may result in misclassification of LPA and MVPA.

Accelerometry calibration in people with class II-III obesity: Energy expenditure prediction and physical activity intensity identification

2020 ◽  
Vol 76 ◽  
pp. 104-109 ◽  
Author(s):  
Florêncio Diniz-Sousa ◽  
Lucas Veras ◽  
José Carlos Ribeiro ◽  
Giorjines Boppre ◽  
Vítor Devezas ◽  
...  
Keyword(s):  
Physical Activity ◽  
Energy Expenditure ◽  
Class Ii ◽  
Physical Activity Intensity ◽  
Activity Intensity

Comparison of three interactive video games for youth with visual impairments

2018 ◽  
Vol 36 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Barbara A Gasperetti ◽  
John T Foley ◽  
Stephen Yang ◽  
Luis Columna ◽  
Lauren J Lieberman
Keyword(s):  
Physical Activity ◽  
Video Games ◽  
Interactive Video ◽  
Vigorous Physical Activity ◽  
Current Trend ◽  
Visual Impairments ◽  
Video Gaming ◽  
Physical Activity Intensity ◽  
Activity Intensity ◽  
Significant Difference

There is a current trend toward using innovative interventions, such as active video gaming to increase physical activity levels among youth with visual impairments. Therefore, the purpose of this study was to compare three video games (Dance, Dance, Revolution [DDR]; EyeToy Kinetic; and Wii Boxing) in allowing youth with visual impairments to achieve time (seconds spent during a 10-min bout) in moderate-to-vigorous physical activity (MVPA). Participants with complete data were youth ( N = 5) with visual impairments aged 10–16 years who played three games for 10-min bouts. Heart rate monitors measured physical activity intensity. A Friedman’s analysis of variance (ANOVA) was used to determine differences between the three interactive video games. Most players were able to achieve time in MVPA in all three games and there was a significant difference in time spent in MVPA, χ2(2) = 7.4, p = .024, with the most time in MVPA from playing EyeToy Kinetic. This study demonstrated that EyeToy Kinetic, Wii Boxing, and DDR are capable of helping youth with visual impairments accrue time in MVPA.

scholarly journals Physical Activity Levels in Physical Education Lessons at Singapore Primary School

2021 ◽  
Vol 1 (2) ◽  
pp. 118-123
Author(s):  
Nur Syahida Binte Jamaluddin ◽  
Masato Kawabata
Keyword(s):  
Physical Activity ◽  
Physical Education ◽  
Primary School ◽  
Primary Schools ◽  
Vigorous Physical Activity ◽  
Activity Levels ◽  
Dominant Hand ◽  
Physical Activity Intensity ◽  
Activity Intensity ◽  
Physical Activity Levels

Physical education (PE) lessons are the appropriate occasions to promote physical activity for children. Although the moderate-to-vigorous physical activity (MVPA) levels during PE lessons were investigated in several countries, MVPA levels during PE lessons were never reported at Singapore primary schools. Therefore, the present study aimed to investigate physical activity intensity levels during PE lessons at a Singapore primary school. A total of 93 students (40 girls) voluntary participated in the study: 28 in Grade 1, 39 in Grade 4, and 26 in Grade 6. They were asked to wear an accelerometer on their non-dominant hand in two PE lessons to measure physical activity levels objectively. They also completed questionnaires on their experiences during the PE lessons. The average of the MVPA levels time (%) in the scheduled lesson time across the three grades was 46.98 ± 5.25%, but the average of the MVPA levels time (%) in the actual lesson time was 69.74 ± 7.31%. These results indicated that it would be possible to achieve the recommended MVPA time in PE lessons. The findings of this study would be useful for PE teachers to reflect whether their PE lessons are efficient to promote primary school student’s physical activity levels.

scholarly journals Understanding Youths’ Ability to Interpret 3D-Printed Physical Activity Data and Identify Associated Intensity Levels: Mixed-Methods Study (Preprint)

2018 ◽  
Author(s):  
Sam Graeme Morgan Crossley ◽  
Melitta Anne McNarry ◽  
Michael Rosenberg ◽  
Zoe R Knowles ◽  
Parisa Eslambolchilar ◽  
...  
Keyword(s):  
Physical Activity ◽  
Children And Adolescents ◽  
Vigorous Physical Activity ◽  
Significant Proportion ◽  
3D Models ◽  
Primary School Children ◽  
Moderate Intensity ◽  
Physical Activity Intensity ◽  
Activity Data ◽  
Activity Intensity

BACKGROUND A significant proportion of youth in the United Kingdom fail to meet the recommended 60 minutes of moderate-to-vigorous physical activity every day. One of the major barriers encountered in achieving these physical activity recommendations is the perceived difficulty for youths to interpret physical activity intensity levels and apply them to everyday activities. Personalized physical activity feedback is an important method to educate youths about behaviors and associated outcomes. Recent advances in 3D printing have enabled novel ways of representing physical activity levels through personalized tangible feedback to enhance youths’ understanding of concepts and make data more available in the everyday physical environment rather than on screen. OBJECTIVE The purpose of this research was to elicit youths’ (children and adolescents) interpretations of two age-specific 3D models displaying physical activity and to assess their ability to appropriately align activities to the respective intensity. METHODS Twelve primary school children (9 boys; mean age 7.8 years; SD 0.4 years) and 12 secondary school adolescents (6 boys; mean age 14.1 years; SD 0.3 years) participated in individual semistructured interviews. Interview questions, in combination with two interactive tasks, focused on youths’ ability to correctly identify physical activity intensities and interpret an age-specific 3D model. Interviews were transcribed verbatim, content was analyzed, and outcomes were represented via tables and diagrammatic pen profiles. RESULTS Youths, irrespective of age, demonstrated a poor ability to define moderate-intensity activities. Moreover, children and adolescents demonstrated difficulty in correctly identifying light- and vigorous-intensity activities, respectively. Although youths were able to correctly interpret different components of the age-specific 3D models, children struggled to differentiate physical activity intensities represented in the models. CONCLUSIONS These findings support the potential use of age-specific 3D models of physical activity to enhance youths’ understanding of the recommended guidelines and associated intensities.

scholarly journals Physical Activity Intensity Cut-Points for Wrist-Worn GENEActiv in Older Adults

2021 ◽  
Vol 2 ◽  
Author(s):  
François Fraysse ◽  
Dannielle Post ◽  
Roger Eston ◽  
Daiki Kasai ◽  
Alex V. Rowlands ◽  
...  
Keyword(s):  
Physical Activity ◽  
Older Adults ◽  
Classification Accuracy ◽  
Operating Characteristic ◽  
Sedentary Time ◽  
Vigorous Physical Activity ◽  
Physical Activity Intensity ◽  
Characteristic Analysis ◽  
Free Living ◽  
Activity Intensity

Purpose: This study aims to (1) establish GENEActiv intensity cutpoints in older adults and (2) compare the classification accuracy between dominant (D) or non-dominant (ND) wrist, using both laboratory and free-living data.Methods: Thirty-one older adults participated in the study. They wore a GENEActiv Original on each wrist and performed nine activities of daily living. A portable gas analyzer was used to measure energy expenditure for each task. Testing was performed on two occasions separated by at least 8 days. Some of the same participants (n = 13) also wore one device on each wrist during 3 days of free-living. Receiver operating characteristic analysis was performed to establish the optimal cutpoints.Results: For sedentary time, both dominant and non-dominant wrist had excellent classification accuracy (sensitivity 0.99 and 0.97, respectively; specificity 0.91 and 0.86, respectively). For Moderate to Vigorous Physical Activity (MVPA), the non-dominant wrist device had better accuracy (ND sensitivity: 0.90, specificity 0.79; D sensitivity: 0.90, specificity 0.64). The corresponding cutpoints for sedentary-to-light were 255 and 375 g · min (epoch independent: 42.5 and 62.5 mg), and those for the light-to-moderate were 588 and 555 g · min (epoch-independent: 98.0 and 92.5 mg) for the non-dominant and dominant wrist, respectively. For free-living data, the dominant wrist device resulted in significantly more sedentary time and significantly less light and MVPA time compared to the non-dominant wrist.

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