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Direct linkJanz, Kathleen F.; Laurson, Kelly R.; Baptista, Fatima; Mahar, Matthew T.; Welk, Gregory J. – Measurement in Physical Education and Exercise Science, 2022
Using a sample of healthy youth (n = 466, 10 to 18 yr), we report the predictive utility of vertical jump power (VJ Power, W) for predicting bone strength. We measured VJ Power using mechanography and an indicator of bone strength, i.e., height-adjusted total bone mineral content less head (TBLH BMC, g), using DXA. Growth curve models were used to…
Descriptors: Preadolescents, Adolescents, Psychomotor Skills, Muscular Strength
Laurson, Kelly R.; Baptista, Fátima; Mahar, Matthew T.; Welk, Greg J.; Janz, Kathleen F. – Measurement in Physical Education and Exercise Science, 2022
We developed plank test standards, based on trunk lean mass-to-fat mass (LM/FM) ratio, in a sample of healthy Portuguese 10--18 year olds (n = 474, 46.4% female). Height and weight were measured and muscular endurance was assessed using the prone plank test. Trunk LM/FM ratio was determined using dual-energy x-ray absorptiometry. Plank standards…
Descriptors: Test Construction, Muscular Strength, Foreign Countries, Preadolescents
Laurson, Kelly R.; Welk, Greg J.; Saint-Maurice, Pedro F.; Eisenmann, Joey C. – Measurement in Physical Education and Exercise Science, 2022
We designed grip strength standards for youth by back-extrapolating cutpoints based on weakness at age 65. Existing standards, based on insufficient bone mineral content (BMC), were also compared in a nationally representative sample. Altogether, 6837 participants (n = 2199 [less than or equal to] 18.9 years of age) from the National Health and…
Descriptors: Standards, Design, Muscular Strength, Human Body
Janz, Kathleen F.; Baptista, Fatima; Ren, Sicong; Zhu, Weimo; Laurson, Kelly R.; Mahar, Matthew T.; Pavlovic, Andjelka; Welk, Gregory J. – Measurement in Physical Education and Exercise Science, 2022
This study summarized protocols in the "Lisbon Study for the Development and Evaluation of Musculoskeletal Fitness Standards in Youth" and assessed associations between fitness assessments and health outcomes. The sample was 529 children and adolescents (10 to 18 yr). The fitness assessments included handgrip, vertical jump, long jump,…
Descriptors: Physical Fitness, Tests, Muscular Strength, Psychomotor Skills
Saint-Maurice, Pedro F.; Laurson, Kelly R.; Karsai, István; Kaj, Mónika; Csányi, Tamás – Research Quarterly for Exercise and Sport, 2015
Purpose: The purpose of this study was to examine age- and sex-related variation in handgrip strength and to determine reference values for the Hungarian population. Method: A sample of 1,086 Hungary youth (aged 11-18 years old; 654 boys and 432 girls) completed a handgrip strength assessment using a handheld dynamometer. Quantile regression was…
Descriptors: Foreign Countries, Adolescents, Preadolescents, Late Adolescents
Saint-Maurice, Pedro F.; Laurson, Kelly R.; Kaj, Mónika; Csányi, Tamás – Research Quarterly for Exercise and Sport, 2015
Purpose: The purpose of this study was to examine age and sex trends in anaerobic power assessed by a standing broad jump and to determine norm-referenced values for youth in Hungary. Method: A sample of 2,427 Hungarian youth (1,360 boys and 1,067 girls) completed the standing broad jump twice, and the highest distance score was recorded. Quantile…
Descriptors: Foreign Countries, Norms, Physical Activities, Regression (Statistics)
