Dataset Information

Reliability and validity of the physical activity monitor for assessing energy expenditures in sedentary, regularly exercising, non-endurance athlete, and endurance athlete adults.

ABSTRACT:

Background

Inertial sensors, such as accelerometers, serve as convenient devices to predict the energy expenditures (EEs) during physical activities by a predictive equation. Although the accuracy of estimate EEs especially matter to athletes receive physical training, most EE predictive equations adopted in accelerometers are based on the general population, not athletes. This study included the heart rate reserve (HRR) as a compensatory parameter for physical intensity and derived new equations customized for sedentary, regularly exercising, non-endurance athlete, and endurance athlete adults.

Methods

With indirect calorimetry as the criterion measure (CM), the EEs of participants on a treadmill were measured, and vector magnitudes (VM), as well as HRR, were simultaneously recorded by a waist-worn accelerometer with a heart rate monitor. Participants comprised a sedentary group (SG), an exercise-habit group (EHG), a non-endurance group (NEG), and an endurance group (EG), with 30 adults in each group.

Results

EE predictive equations were revised using linear regression with cross-validation on VM, HRR, and body mass (BM). The modified model demonstrates valid and reliable predictions across four populations (Pearson correlation coefficient, r: 0.922 to 0.932; intraclass correlation coefficient, ICC: 0.919 to 0.930).

Conclusion

Using accelerometers with a heart rate monitorcan accurately predict EEs of athletes and non-athletes with an optimized predictive equation integrating the VM, HRR, and BM parameters.

SUBMITTER: Chang CH

PROVIDER: S-EPMC7450994 | biostudies-literature | 2020

REPOSITORIES: biostudies-literature

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Publications

Reliability and validity of the physical activity monitor for assessing energy expenditures in sedentary, regularly exercising, non-endurance athlete, and endurance athlete adults.

Chang Chun-Hao CH Hsu Yi-Ju YJ Li Fang F Tu Yu-Tsai YT Jhang Wei-Lun WL Hsu Chih-Wen CW Huang Chi-Chang CC Ho Chin-Shan CS

PeerJ 20200824

<h4>Background</h4>Inertial sensors, such as accelerometers, serve as convenient devices to predict the energy expenditures (EEs) during physical activities by a predictive equation. Although the accuracy of estimate EEs especially matter to athletes receive physical training, most EE predictive equations adopted in accelerometers are based on the general population, not athletes. This study included the heart rate reserve (HRR) as a compensatory parameter for physical intensity and derived new ...[more]

PMID: 32904158

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Project description:BackgroundPrevious questionnaires targeting older adults' sedentary time have underestimated total sedentary time, possibly by not including all relevant specific sedentary behaviors. The current study aimed to investigate the criterion validity and test-retest reliability of a new questionnaire assessing a comprehensive set of sedentary behaviors. Additionally, we examined whether the criterion validity of the questionnaire differed according to age, gender and educational level.MethodsA sample of home-dwelling Belgian older adults (>64 years, n?=?508) completed a newly-developed questionnaire assessing twelve specific sedentary behaviors and wore an accelerometer for seven consecutive days as criterion measure. A subsample (n?=?28) completed the questionnaire a second time to examine test-retest reliability. Data collection occurred between September 2010 and October 2012.ResultsCorrelational analyses examining self-reported total sitting time and accelerometer-derived sedentary time yielded a Spearman's ? of 0.30. Using the Bland-Altman regression procedure, self-reported total sitting time underestimated accelerometer-derived sedentary time by -82 minutes/day for a participant with an average level of sedentary time (539 minutes/day). Corresponding 95% limits of agreement were wide (-364, 200 minutes/day). Better, but still not ideal, validity findings were observed in the younger, male and tertiary-educated subgroups. Acceptable test-retest reliability (ICC?>?0.70) was found for total sitting time, TV viewing, computer use, and driving a car.ConclusionValidity for older adults' self-reported total sitting time against accelerometer-derived sedentary time was not strong, but comparable to previous studies. However, underestimation of total sedentary time was lower compared to previous studies, possibly explained by the inclusion of additional specific sedentary behaviors. Further research is needed to develop self-report tools and objective criterion measures that accurately measure engagement in (specific) sedentary behavior(s) among different subgroups of the older population.

Project description:Introduction:Children with high dental anxiety display uncooperative behavior during dental procedures. Different self-assessment questionnaires are in use to estimate the prevalence of dental fear and anxiety (DFA) in children but they need to be tested for reliability and validity in different populations. Objectives:The aim of this study was to test the reliability and validity of two scales for the assessment of child dental fear and anxiety in a sample of Croatian children. Material and Methods:The sample comprised 202 pairs consisting of children and their mothers (97 boys and 105 girls) aged 5 - 12 years. Two scales were used to assess children's DFA: the Children's Fear Survey Schedule - Dental Subscale (CFSS-DS) and the Modified Child Dental Anxiety Scale - face version (MCDAS-f). The Corah's Dental Anxiety Scale (CDAS) was used in the sample of children's mothers. The average scores of cooperative children and children with behavior management problem (BMP) were compared. Results:Cooperative children displayed significantly lower CFSS-DS scores than children with BMP (M = 28. 46 vs. M = 39. 36; P < 0.001). The average MCDAS-f score was significantly higher in children with BMP than in cooperative children (M = 28. 07 vs. 20. 01; P < 0.001). The CFSS-DS showed high internal consistency (Cronbach's ? = 0. 90), while internal consistency of MCDAS-f was good (? = 0. 73). The maternal CDAS showed good internal consistency (? = 0, 89). The correlations with other self-report measurements of DFS show good validity of all scales. The correlations between CFSS-DS and MCDAS-f were highly significant (r = 0.482; P < 0. 01) as well as the correlations of CFSS-DS and MCDAS-f with CDAS scores (r = 0.223; P < 0. 01 and r = 0.198; P < 0. 01, respectively. Conclusion:The obtained results suggest that both the CFSS-DS scale and the MCDAS-f scale are reliable and valid scales for measuring dental fear and anxiety in children in a sample of Croatian children. The MCDAS-f scale has shown slightly lower internal consistency but it is suitable for use in young children. In addition, the MCDAS-f scale is simple to administer.

Dataset Information

Reliability and validity of the physical activity monitor for assessing energy expenditures in sedentary, regularly exercising, non-endurance athlete, and endurance athlete adults.

Background

Methods

Results

Conclusion

Publications

Reliability and validity of the physical activity monitor for assessing energy expenditures in sedentary, regularly exercising, non-endurance athlete, and endurance athlete adults.

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