Estimation of Aerobic Fitness from PACER Performance with and without Body Mass Index
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| Title: | Estimation of Aerobic Fitness from PACER Performance with and without Body Mass Index |
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| Language: | English |
| Authors: | Mahar, Matthew T. (ORCID |
| Source: | Measurement in Physical Education and Exercise Science. 2018 22(3):239-249. |
| Availability: | Routledge. Available from: Taylor & Francis, Ltd. 530 Walnut Street Suite 850, Philadelphia, PA 19106. Tel: 800-354-1420; Tel: 215-625-8900; Fax: 215-207-0050; Web site: http://www.tandf.co.uk/journals |
| Peer Reviewed: | Y |
| Page Count: | 11 |
| Publication Date: | 2018 |
| Document Type: | Journal Articles Reports - Research |
| Descriptors: | Exercise, Physical Fitness, Preadolescents, Adolescents, Body Composition, Body Weight, Body Height, Predictor Variables, Models, Measurement, Classification, Correlation, Accuracy, Validity, Statistical Analysis |
| DOI: | 10.1080/1091367X.2018.1427590 |
| ISSN: | 1091-367X |
| Abstract: | Purpose: To develop models to estimate aerobic fitness (VO[subscript 2]max) from PACER performance in 10- to 18-year-old youth, with and without body mass index (BMI) as a predictor. Method: Youth (N = 280) completed the PACER and a maximal treadmill test to assess VO[subscript 2]max. Validation and cross-validation groups were randomly formed to develop and examine accuracy of models. Participants were classified into FitnessGram® Healthy Fitness Zone categories based on measured and estimated VO[subscript 2]max and criterion-referenced validity was evaluated. Results: Multiple correlations between measured and estimated VO[subscript 2]max ranged from 0.70 to 0.73, with standard errors of estimate between 6.43 and 6.68 mL·kg[superscript -1]·min[superscript -1]. Accuracy with and without BMI was nearly identical. Overall, criterion-referenced validity evidence was moderate. Conclusion: Moderately accurate and feasible models were developed. Minimal improvement in accuracy was noted when BMI was added as a predictor. The model with PACER and age as predictors has a high level of utility for youth fitness testing. |
| Abstractor: | As Provided |
| Number of References: | 27 |
| Entry Date: | 2018 |
| Accession Number: | EJ1184009 |
| Database: | ERIC |
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| Abstract: | Purpose: To develop models to estimate aerobic fitness (VO[subscript 2]max) from PACER performance in 10- to 18-year-old youth, with and without body mass index (BMI) as a predictor. Method: Youth (N = 280) completed the PACER and a maximal treadmill test to assess VO[subscript 2]max. Validation and cross-validation groups were randomly formed to develop and examine accuracy of models. Participants were classified into FitnessGram® Healthy Fitness Zone categories based on measured and estimated VO[subscript 2]max and criterion-referenced validity was evaluated. Results: Multiple correlations between measured and estimated VO[subscript 2]max ranged from 0.70 to 0.73, with standard errors of estimate between 6.43 and 6.68 mL·kg[superscript -1]·min[superscript -1]. Accuracy with and without BMI was nearly identical. Overall, criterion-referenced validity evidence was moderate. Conclusion: Moderately accurate and feasible models were developed. Minimal improvement in accuracy was noted when BMI was added as a predictor. The model with PACER and age as predictors has a high level of utility for youth fitness testing. |
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| ISSN: | 1091-367X |
| DOI: | 10.1080/1091367X.2018.1427590 |
