{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,6,4]],"date-time":"2024-06-04T22:39:10Z","timestamp":1717540750586},"reference-count":34,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"8","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,8]]},"abstract":"<jats:title>Abstract<\/jats:title>\n          <jats:p>Alves, AR, Marta, C, Neiva, HP, Nunes, C, Izquierdo, M, and Marques, MC. Modeling fitness variable responses to training in prepubescent children. <jats:italic toggle=\"yes\">J Strength Cond Res<\/jats:italic> 34(8): 2352\u20132359, 2020\u2014The aim of this study was to determine strength and oxygen uptake (V\u0307<jats:sc>o<\/jats:sc>\n                           <jats:sub>2<\/jats:sub>max) performances according to different training program intervention design with 8-week duration in prepubescent children through a multiple linear regression models. Two hundred forty-five healthy prepubescent children (aged 10.9 \u00b1 0.5 years) were randomly assigned to a specific training program (strength training only\u2014S; aerobic training only\u2014A; intrasession aerobic and strength training\u2014AS; intrasession strength and aerobic training\u2014SA; or concurrent training performed in different sessions\u2014CT) or a control group (no training regimen\u2014C). It was possible to develop indirect predictive models for each training method, by including each variable pretraining, body fat percentage and body mass index. The models provided explained 82% of variance in the V\u0307<jats:sc>o<\/jats:sc>\n                           <jats:sub>2<\/jats:sub>max, 98% in the 1 kg ball-throw, 96% in the 3 kg ball-throw, 92% in the countermovement jump, 93% in the standing long jump and 98% in the 20 m sprint performances. This novel approach to training evaluation and control aims to provide a tool to allow professionals to calculate changes with a high confidence level (CI 95%), to control gains and to choose the best training methodology to apply according to the defined purposes. The results of this study could be a great support to teachers, coaches, and professionals providing important tools to improve the efficacy and individualization of training.<\/jats:p>","DOI":"10.1519\/jsc.0000000000002201","type":"journal-article","created":{"date-parts":[[2017,11,17]],"date-time":"2017-11-17T19:54:31Z","timestamp":1510948471000},"page":"2352-2359","source":"Crossref","is-referenced-by-count":4,"title":["Modeling Fitness Variable Responses to Training in Prepubescent Children"],"prefix":"10.1519","volume":"34","author":[{"given":"Ana R.","family":"Alves","sequence":"first","affiliation":[{"name":"Department of Sport Sciences, University of Beira Interior, Covilh\u00e3, Portugal;"}]},{"given":"Carlos","family":"Marta","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, Guarda Polytechnique Institute, Guarda, Portugal;"},{"name":"Research Unit for Inland Development, UDI, Guarda, Portugal;"}]},{"given":"Henrique P.","family":"Neiva","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, University of Beira Interior, Covilh\u00e3, Portugal;"},{"name":"Research Center in Sport Sciences, Health Sciences and Human Development, CIDESD, Vila Real, Portugal;"}]},{"given":"C\u00e9lia","family":"Nunes","sequence":"additional","affiliation":[{"name":"Department of Mathematics, University of Beira Interior, Covilh\u00e3, Portugal;"},{"name":"Center of Mathematics and Applications, CMA-UBI, Covilh\u00e3, Portugal; and"}]},{"given":"Mikel","family":"Izquierdo","sequence":"additional","affiliation":[{"name":"Department of Health Sciences, Public University of Navarre, Navarre, Spain"}]},{"given":"M\u00e1rio C.","family":"Marques","sequence":"additional","affiliation":[{"name":"Department of Sport Sciences, University of Beira Interior, Covilh\u00e3, Portugal;"},{"name":"Research Center in Sport Sciences, Health Sciences and Human Development, CIDESD, Vila Real, Portugal;"}]}],"member":"276","reference":[{"key":"R2-20231004","doi-asserted-by":"crossref","first-page":"444","DOI":"10.3389\/fphys.2017.00444","article-title":"Effects of 6-weeks high-intensity interval training in schoolchildren with insulin resistance: Influence of biological maturation on metabolic body composition, cardiovascular and performance non-responses","volume":"8","author":"Alvarez","year":"2017","journal-title":"Front Physiol"},{"key":"R3-20231004","doi-asserted-by":"crossref","first-page":"2019","DOI":"10.1519\/JSC.0000000000001294","article-title":"Concurrent training in prepubescent children: The effects of 8 weeks of strength and aerobic training on explosive strength and VO2max","volume":"30","author":"Alves","year":"2015","journal-title":"J Strength Cond Res"},{"key":"R4-20231004","doi-asserted-by":"crossref","first-page":"3267","DOI":"10.1519\/JSC.0000000000001431","article-title":"Does intra-session concurrent strength and aerobic training order influence training-induced explosive strength and VO2max in prepubescent children?","volume":"30","author":"Alves","year":"2016","journal-title":"J Strength Cond Res"},{"key":"R5-20231004","doi-asserted-by":"crossref","first-page":"860","DOI":"10.1136\/bjsports-2014-094491","article-title":"Muscle metabolism changes with age and maturation: How do they relate to youth sport performance?","volume":"49","author":"Armstrong","year":"2015","journal-title":"Br J Sports Med"},{"key":"R6-20231004","doi-asserted-by":"crossref","first-page":"379","DOI":"10.1123\/pes.22.3.379","article-title":"Modeling the links between young swimmers' performance: Energetic and biomechanic profiles","volume":"22","author":"Barbosa","year":"2010","journal-title":"Pediatr Exerc Sci"},{"key":"R7-20231004","first-page":"57","article-title":"Effect of strength training and concurrent strength and endurance training on strength, testosterone, and cortisol","volume":"11","author":"Bell","year":"1997","journal-title":"J Strength Cond Res"},{"key":"R8-20231004","doi-asserted-by":"crossref","first-page":"418","DOI":"10.1007\/s004210050063","article-title":"Effect of concurrent strength and endurance training on skeletal muscle properties and hormone concentrations in humans","volume":"81","author":"Bell","year":"2000","journal-title":"Eur J Appl Physiol"},{"key":"R9-20231004","doi-asserted-by":"crossref","first-page":"442","DOI":"10.1016\/j.cct.2006.11.004","article-title":"A rational and method for high-intensity progressive resistance training with children and adolescents","volume":"28","author":"Benson","year":"2007","journal-title":"Contemp Clin Trials"},{"key":"R10-20231004","doi-asserted-by":"crossref","first-page":"e 0167790","DOI":"10.1371\/journal.pone.0167790","article-title":"Inter-individual variability in the adaptive responses to endurance and sprint interval training: A randomized crossover study","volume":"11","author":"Bonafiglia","year":"2016","journal-title":"PLoS One"},{"key":"R11-20231004","doi-asserted-by":"crossref","first-page":"3281","DOI":"10.1519\/JSC.0b013e318248ab26","article-title":"Hormonal responses to concurrent strength and endurance training with different exercise orders","volume":"26","author":"Cadore","year":"2012","journal-title":"J Strength Cond Res"},{"key":"R12-20231004","doi-asserted-by":"crossref","first-page":"689","DOI":"10.1055\/s-0030-1261895","article-title":"Physiological effects of concurrent training in elderly men","volume":"31","author":"Cadore","year":"2010","journal-title":"Int J Sports Med"},{"key":"R13-20231004","doi-asserted-by":"crossref","first-page":"1240","DOI":"10.1136\/bmj.320.7244.1240","article-title":"Establishing a standard definition for child overweight and obesity worldwide: International survey","volume":"320","author":"Cole","year":"2000","journal-title":"BMJ"},{"key":"R14-20231004","doi-asserted-by":"crossref","first-page":"425","DOI":"10.1007\/s004210000197","article-title":"Relationships between physical activity, physical fitness, muscle strength and nutritional state in 5- to 11-year-old children","volume":"82","author":"Grund","year":"2000","journal-title":"Eur J Appl Physiol"},{"key":"R15-20231004","first-page":"109","article-title":"Strength changes during an in-season resistance-training program for football","volume":"17","author":"Hoffman","year":"2003","journal-title":"J Strength Cond Res"},{"key":"R16-20231004","doi-asserted-by":"crossref","first-page":"9","DOI":"10.1249\/FIT.0000000000000004","article-title":"Which comes first? 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