{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,12]],"date-time":"2026-03-12T09:21:21Z","timestamp":1773307281722,"version":"3.50.1"},"reference-count":35,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"8","content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2025,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Baptista, F, de Marco, RL, Zymbal, V, and Janz, KF. Reference standards for vertical jump power and handgrip strength for screening the risk of low bone and muscle mass for age in youth.\n                    <jats:italic toggle=\"yes\">J Strength Cond Res<\/jats:italic>\n                    39(8): e974\u2013e981, 2025\u2014This study examined the predictive validity of vertical jump power and handgrip strength to discriminate at-risk youth for low muscle mass and bone mass for age. The sample consisted of 529 subjects of ages 10\u201318 years. Handgrip strength and vertical jump power were assessed using a hand dynamometer and a countermovement jump performed on a force platform. Dual-energy X-ray absorptiometry was used to assess lean body mass normalized for body height (kg\u00b7m\n                    <jats:sup>\u22122<\/jats:sup>\n                    ) and bone mineral density (g\u00b7cm\n                    <jats:sup>\u22122<\/jats:sup>\n                    ) of the whole body less head. These variables were used to determine the risk of low bone and muscle mass, defined by a\n                    <jats:italic toggle=\"yes\">Z<\/jats:italic>\n                    -score \u2264 \u22121.0 for both variables. All variables were standardized by the lambda\u2013mu\u2013sigma method according to sex and age group, using the sample as a reference. By sex, the analysis included the area under the curve (AUC), sensitivity (Se), and specificity (Sp). The ability to discriminate the risk of low bone and muscle mass through the assessment of musculoskeletal fitness was good to exceptional for vertical jump power (AUCs \u22650.88, Se and Sp = 78\u201391%) and acceptable to good for handgrip strength (AUCs = 0.75\u20130.88, Se and Sp = 68\u201373%). Risk\n                    <jats:italic toggle=\"yes\">Z<\/jats:italic>\n                    -scores for musculoskeletal fitness ranged from \u22120.5 to \u22120.8, depending on the test and sex. Handgrip strength and especially vertical jump power can be used to screen the risk of pediatric low bone and muscle mass. Slight decreases in musculoskeletal fitness can be an inexpensive and noninvasive indicator of muscle and bone health.\n                  <\/jats:p>","DOI":"10.1519\/jsc.0000000000005130","type":"journal-article","created":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T15:00:46Z","timestamp":1773241246000},"page":"e974-e981","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":0,"title":["Reference Standards for Vertical Jump Power and Handgrip Strength for Screening the Risk of Low Bone and Muscle Mass for Age in Youth"],"prefix":"10.1519","volume":"39","author":[{"given":"F\u00e1tima","family":"Baptista","sequence":"first","affiliation":[{"name":"CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal;"}]},{"given":"Rafael Luiz","family":"de Marco","sequence":"additional","affiliation":[{"name":"Laboratory of Investigation in Exercise (LIVE), Department of Physical Education, Sao Paulo State University (UNESP), Sao Paulo, Brazil;"}]},{"given":"Vera","family":"Zymbal","sequence":"additional","affiliation":[{"name":"CIPER, Faculdade de Motricidade Humana, Universidade de Lisboa, Lisbon, Portugal;"},{"name":"Instituto Polit\u00e9cnico de Set\u00fabal, Escola Superior de Sa\u00fade, Centro de Investiga\u00e7\u00e3o em Qualidade de Vida (CIEQV- IP Set\u00fabal), Set\u00fabal, Portugal; and"}]},{"given":"Kathleen F.","family":"Janz","sequence":"additional","affiliation":[{"name":"Health and Human Physiology and"},{"name":"Epidemiology, The University of Iowa, Iowa City, Iowa"}]}],"member":"276","published-online":{"date-parts":[[2025,6,10]]},"reference":[{"key":"R1-20260311","doi-asserted-by":"crossref","first-page":"7","DOI":"10.21037\/jlpm.2019.02.01","article-title":"The diagnostic role of fat in osteosarcopenia","volume":"4","author":"Al Saedi","year":"2019","journal-title":"J Lab Precis Med"},{"key":"R2-20260311","doi-asserted-by":"crossref","first-page":"361","DOI":"10.1080\/1091367X.2021.1987242","article-title":"Predictive validity of handgrip strength, vertical jump power, and plank time in the identification of pediatric sarcopenia","volume":"26","author":"Baptista","year":"2022","journal-title":"Meas Phys Educ Exerc Sci"},{"key":"R3-20260311","doi-asserted-by":"crossref","first-page":"1410","DOI":"10.1111\/jgs.16372","article-title":"Sarcopenia definition: The position statements of the sarcopenia definition and outcomes consortium","volume":"68","author":"Bhasin","year":"2020","journal-title":"J Am Geriatr Soc"},{"key":"R4-20260311","doi-asserted-by":"crossref","first-page":"300","DOI":"10.1016\/j.jamda.2019.12.012","article-title":"Asian working group for sarcopenia: 2019 consensus update on sarcopenia diagnosis and treatment","volume":"21","author":"Chen","year":"2020","journal-title":"J Am Med Dir Assoc"},{"key":"R5-20260311","doi-asserted-by":"crossref","first-page":"8","DOI":"10.1002\/jcsm.13392","article-title":"Global epidemiological features and impact of osteosarcopenia: A comprehensive meta\u2010analysis and systematic review","volume":"15","author":"Chen","year":"2024","journal-title":"J Cachexia Sarcopenia Muscle"},{"key":"R6-20260311","doi-asserted-by":"crossref","first-page":"501","DOI":"10.1007\/s00431-022-04743-x","article-title":"Osteoporosis in children and adolescents: How to treat and monitor?","volume":"182","author":"Ciancia","year":"2023","journal-title":"Eur J Pediatr"},{"key":"R7-20260311","doi-asserted-by":"crossref","first-page":"1012","DOI":"10.1359\/jbmr.080303","article-title":"Vigorous physical activity increases fracture risk in children irrespective of bone mass: A prospective study of the independent risk factors for fractures in healthy children","volume":"23","author":"Clark","year":"2008","journal-title":"J Bone Miner Res"},{"key":"R8-20260311","doi-asserted-by":"crossref","first-page":"601","DOI":"10.1093\/ageing\/afz046","article-title":"Sarcopenia: Revised European consensus on definition and diagnosis","volume":"48","author":"Cruz-Jentoft","year":"2019","journal-title":"Age Ageing"},{"key":"R9-20260311","doi-asserted-by":"crossref","first-page":"2629","DOI":"10.1007\/s40279-021-01524-8","article-title":"Health-related criterion-referenced cut-points for musculoskeletal fitness among youth: A systematic review","volume":"51","author":"Fraser","year":"2021","journal-title":"Sports Med"},{"key":"R10-20260311","doi-asserted-by":"crossref","first-page":"1221","DOI":"10.1136\/bjsports-2017-098723","article-title":"Muscular weakness in adolescence is associated with disability 30 years later: A population-based cohort study of 1.2 million men","volume":"53","author":"Henriksson","year":"2019","journal-title":"Br J Sports Med"},{"key":"R11-20260311","doi-asserted-by":"crossref","first-page":"2781","DOI":"10.1007\/s00198-017-4151-8","article-title":"Osteosarcopenia: Where bone, muscle, and fat collide","volume":"28","author":"Hirschfeld","year":"2017","journal-title":"Osteoporos Int"},{"key":"R12-20260311","doi-asserted-by":"crossref","first-page":"291","DOI":"10.3390\/nu13020291","article-title":"Related factors and clinical outcomes of osteosarcopenia: A narrative review","volume":"13","author":"Inoue","year":"2021","journal-title":"Nutrients"},{"key":"R13-20260311","doi-asserted-by":"crossref","first-page":"297","DOI":"10.1080\/1091367X.2021.2000414","article-title":"Associations among musculoskeletal fitness assessments and health outcomes: The Lisbon study for the development and evaluation of musculoskeletal fitness standards in youth","volume":"26","author":"Janz","year":"2022","journal-title":"Meas Phys Educ Exerc Sci"},{"key":"R14-20260311","doi-asserted-by":"crossref","first-page":"315","DOI":"10.1080\/1091367X.2021.2013230","article-title":"Vertical jump power is associated with healthy bone outcomes in youth: ROC analyses and diagnostic performance","volume":"26","author":"Janz","year":"2022","journal-title":"Meas Phys Educ Exerc Sci"},{"key":"R15-20260311","doi-asserted-by":"crossref","first-page":"91","DOI":"10.1159\/000450922","article-title":"Skeletal muscle regeneration, repair and remodelling in aging: The importance of muscle stem cells and vascularization","volume":"63","author":"Joanisse","year":"2017","journal-title":"Gerontology"},{"key":"R16-20260311","doi-asserted-by":"crossref","first-page":"155557","DOI":"10.1016\/j.metabol.2023.155557","article-title":"Sarcopenia in youth","volume":"144","author":"Jung","year":"2023","journal-title":"Metabolism"},{"key":"R17-20260311","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s00198-019-05176-3","article-title":"Algorithm for the management of patients at low, high and very high risk of osteoporotic fractures","volume":"31","author":"Kanis","year":"2020","journal-title":"Osteoporos Int"},{"key":"R18-20260311","doi-asserted-by":"crossref","first-page":"308","DOI":"10.1177\/0004563218759371","article-title":"The bone remodelling cycle","volume":"55","author":"Kenkre","year":"2018","journal-title":"Ann Clin Biochem"},{"key":"R19-20260311","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1002\/agm2.12080","article-title":"Osteosarcopenia: A case of geroscience","volume":"2","author":"Kirk","year":"2019","journal-title":"Aging Med Milt"},{"key":"R20-20260311","doi-asserted-by":"crossref","first-page":"609","DOI":"10.1002\/jcsm.12567","article-title":"Osteosarcopenia: Epidemiology, diagnosis, and treatment\u2014facts and numbers","volume":"11","author":"Kirk","year":"2020","journal-title":"J Cachexia Sarcopenia Muscle"},{"key":"R21-20260311","doi-asserted-by":"crossref","first-page":"869","DOI":"10.1007\/s11357-020-00251-8","article-title":"Handgrip strength\u2014a risk indicator for future fractures in the general population: Findings from a prospective study and meta-analysis of 19 prospective cohort studies","volume":"43","author":"Kunutsor","year":"2021","journal-title":"Geroscience"},{"key":"R22-20260311","first-page":"528","article-title":"Challenges and physiological implications of sarcopenia in children and youth in health and disease","volume":"26","author":"Mager","year":"2023","journal-title":"Curr Opin Clin Nutr Metab Care"},{"key":"R23-20260311","first-page":"480","article-title":"Intra-and inter-rater reliability of jumping mechanography muscle function assessments","volume":"13","author":"Matheson","year":"2013","journal-title":"J Musculoskelet Neuronal Interact"},{"key":"R24-20260311","doi-asserted-by":"crossref","first-page":"2002","DOI":"10.1016\/j.clnu.2019.04.012","article-title":"Low muscle mass and strength in pediatrics patients: Why should we care?","volume":"38","author":"Orsso","year":"2019","journal-title":"Clin Nutr"},{"key":"R25-20260311","doi-asserted-by":"crossref","first-page":"20","DOI":"10.1136\/bjsm.2009.062679","article-title":"Physical fitness levels among European adolescents: The HELENA study","volume":"45","author":"Ortega","year":"2011","journal-title":"Br J Sports Med"},{"key":"R26-20260311","doi-asserted-by":"crossref","first-page":"e7279","DOI":"10.1136\/bmj.e7279","article-title":"Muscular strength in male adolescents and premature death: Cohort study of one million participants","volume":"345","author":"Ortega","year":"2012","journal-title":"BMJ"},{"key":"R27-20260311","doi-asserted-by":"crossref","first-page":"299","DOI":"10.1136\/bjsports-2022-106176","article-title":"European fitness landscape for children and adolescents: Updated reference values, fitness maps and country rankings based on nearly 8 million test results from 34 countries gathered by the FitBack network","volume":"57","author":"Ortega","year":"2023","journal-title":"Br J Sports Med"},{"key":"R28-20260311","doi-asserted-by":"crossref","first-page":"5591","DOI":"10.3390\/ijms23105591","article-title":"Osteosarcopenia: A narrative review on clinical studies","volume":"23","author":"Polito","year":"2022","journal-title":"Int J Mol Sci"},{"key":"R29-20260311","doi-asserted-by":"crossref","first-page":"1367","DOI":"10.1016\/j.jhsa.2006.06.014","article-title":"Hand span influences optimal grip span in male and female teenagers","volume":"31","author":"Ruiz","year":"2006","journal-title":"J Hand Surg Am"},{"key":"R30-20260311","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1007\/s11657-018-0502-0","article-title":"Grip strength cutpoints for youth based on a clinically relevant bone health outcome","volume":"13","author":"Saint-Maurice","year":"2018","journal-title":"Arch Osteoporos"},{"key":"R31-20260311","doi-asserted-by":"crossref","first-page":"1163","DOI":"10.1007\/s40279-020-01267-y","article-title":"Association between muscular strength and bone health from children to young adults: A systematic review and meta-analysis","volume":"50","author":"Torres-Costoso","year":"2020","journal-title":"Sports Med"},{"key":"R32-20260311","doi-asserted-by":"crossref","first-page":"1151","DOI":"10.1016\/j.clnu.2023.05.008","article-title":"Body composition and musculoskeletal fitness: A cluster analysis for the identification of risk phenotypes for pediatric sarcopenia","volume":"42","author":"Torres-Costoso","year":"2023","journal-title":"Clin Nutr"},{"key":"R33-20260311","doi-asserted-by":"crossref","first-page":"1281","DOI":"10.1007\/s00198-015-3440-3","article-title":"The National Osteoporosis Foundation's position statement on peak bone mass development and lifestyle factors: A systematic review and implementation recommendations","volume":"27","author":"Weaver","year":"2016","journal-title":"Osteoporos Int"},{"key":"R34-20260311","doi-asserted-by":"crossref","first-page":"49","DOI":"10.3945\/ajcn.112.053611","article-title":"Fat and lean BMI reference curves in children and adolescents and their utility in identifying excess adiposity compared with BMI and percentage body fat","volume":"98","author":"Weber","year":"2013","journal-title":"Am J Clin Nutr"},{"key":"R35-20260311","doi-asserted-by":"crossref","first-page":"3160","DOI":"10.1210\/jc.2011-1111","article-title":"Revised reference curves for bone mineral content and areal bone mineral density according to age and sex for black and non-black children: Results of the bone mineral density in childhood study","volume":"96","author":"Zemel","year":"2011","journal-title":"J Clin Endocrinol Metab"}],"container-title":["Journal of Strength &amp; Conditioning Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.lww.com\/10.1519\/JSC.0000000000005130","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,3,11]],"date-time":"2026-03-11T15:00:50Z","timestamp":1773241250000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.lww.com\/10.1519\/JSC.0000000000005130"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,6,10]]},"references-count":35,"journal-issue":{"issue":"8","published-print":{"date-parts":[[2025]]}},"URL":"https:\/\/doi.org\/10.1519\/jsc.0000000000005130","relation":{},"ISSN":["1064-8011","1533-4287"],"issn-type":[{"value":"1064-8011","type":"print"},{"value":"1533-4287","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,6,10]]}}}