{"id":5178,"date":"2018-07-11T11:35:44","date_gmt":"2018-07-11T14:35:44","guid":{"rendered":"http:\/\/barcainnovationhub.com\/?p=5178"},"modified":"2021-11-21T12:42:46","modified_gmt":"2021-11-21T15:42:46","slug":"acceleracions-dalta-intensitat-futbol","status":"publish","type":"post","link":"https:\/\/barcainnovationhub.com\/ca\/acceleracions-dalta-intensitat-futbol\/","title":{"rendered":"L\u2019ESTUDI DE LES ACCELERACIONS I DESACCELERACIONS D&#8217;ALTA INTENSITAT AL FUTBOL"},"content":{"rendered":"","protected":false},"excerpt":{"rendered":"<p>Una nova dimensi\u00f3 d&#8217;an\u00e0lisi ens planteja que les acceleracions m\u00e0ximes ocorren amb una freq\u00fc\u00e8ncia superior a 8 vegades respecte a les accions d&#8217;esprint.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[222,37,37,34,34,31,31],"tags":[],"yoast_head":"<!-- This site is optimized with 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17:28:35","menu_order":0,"mime_type":"image\/jpeg","type":"image","subtype":"jpeg","icon":"https:\/\/barcainnovationhub.com\/wp-includes\/images\/media\/default.png","width":1920,"height":1080,"sizes":{"thumbnail":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/aceleraciones_desaceleraciones_futbol-e1531330097868-150x150.jpg","thumbnail-width":150,"thumbnail-height":150,"medium":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/aceleraciones_desaceleraciones_futbol-e1531330097868-300x169.jpg","medium-width":300,"medium-height":169,"medium_large":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/aceleraciones_desaceleraciones_futbol-e1531330097868-768x432.jpg","medium_large-width":768,"medium_large-height":432,"large":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/aceleraciones_desaceleraciones_futbol-e1531330097868-1024x576.jpg","large-width":1024,"large-height":576,"1536x1536":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/aceleraciones_desaceleraciones_futbol-e1531330097868.jpg","1536x1536-width":1536,"1536x1536-height":864,"2048x2048":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/aceleraciones_desaceleraciones_futbol-e1531330097868.jpg","2048x2048-width":1920,"2048x2048-height":1080}},"gif":false,"contenido":[{"acf_fc_layout":"bloque_de_texto","bloque_de_texto":"<p>Accelerar \u00e9s una activitat metab\u00f2licament demandant que augmenta el consum energ\u00e8tic de l&#8217;activitat i el cansament muscular respecte a quan es compara amb un despla\u00e7ament a velocitat constant (Osgnach et al., 2010). Als esports col\u00b7lectius, les acceleracions, desacceleracions i canvis de direcci\u00f3 presenten una alta freq\u00fc\u00e8ncia. En el cas concret del futbol, m\u00e9s del 85% de les acceleracions m\u00e0ximes no arriben a categories d\u2019alta velocitat de despla\u00e7ament (&gt;4.17 m\u00b7s<sup>-2<\/sup>; Varley &amp; Aughey, 2013). Per tant, aquestes accions no seran considerades com d\u2019alta intensitat a l\u2019an\u00e0lisi tradicional i simplista que contempla la velocitat dels despla\u00e7aments dels esportistes i subestima les accions d\u2019alta intensitat realitzades pels esportistes. Les acceleracions m\u00e0ximes (&gt;2.78 m\u00b7s<sup>-2<\/sup>) tenen lloc amb una freq\u00fc\u00e8ncia superior a 8 vegades respecte a les accions d\u2019esprint (Varley &amp; Aughey, 2013). Per tant, \u00e9s necessari estudiar amb profunditat aquest tipus d\u2019accions durant els entrenaments i\/o partits de futbol (aplicable als esports col\u00b7lectius en general). Aquesta nova dimensi\u00f3 adquireix rellev\u00e0ncia en la descripci\u00f3 de les demandes dels futbolistes, ja que podrien estar sent subestimades accions realitzades a m\u00e0xima acceleraci\u00f3 per\u00f2 a baixa velocitat, motiu pel qual alguns autors ja han comen\u00e7at a prestar-hi atenci\u00f3 (Castellano et al., 2013). A l\u2019hora de definir categories d\u2019intensitat a les acceleracions i desacceleracions d\u2019alta intensitat, diferents autors han utilitzat diversos llindars d\u2019intensitat absoluta. De manera m\u00e9s concreta, podem indicar que les acceleracions de m\u00e0xima intensitat han estat establertes a partir de valors de 2.78 m\u00b7s<sup>-2<\/sup> (Varley &amp; Aughey, 2013), 3 m\u00b7s<sup>-2<\/sup> (Hodgson et al., 2014) i 4 m\u00b7s<sup>-2<\/sup> (Buchheit et al., 2014).<\/p>\n"},{"acf_fc_layout":"imagen_apaisada","imagen_apaisada":{"ID":24604,"id":24604,"title":"Figura 1 El estudio de las acelaraciones y desaceleraciones","filename":"0b30bf08-figura-1-el-estudio-de-las-acelaraciones-y-desaceleraciones.png","filesize":0,"url":"https:\/\/barcainnovationhub.com\/wp-content\/uploads\/2018\/07\/0b30bf08-figura-1-el-estudio-de-las-acelaraciones-y-desaceleraciones.png","link":"https:\/\/barcainnovationhub.com\/ca\/acceleracions-dalta-intensitat-futbol\/figura-1-el-estudio-de-las-acelaraciones-y-desaceleraciones-2-2\/","alt":"","author":"24","description":"","caption":"","name":"figura-1-el-estudio-de-las-acelaraciones-y-desaceleraciones-2-2","status":"inherit","uploaded_to":5178,"date":"2019-06-12 12:00:29","modified":"2019-06-12 12:00:29","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/barcainnovationhub.com\/wp-includes\/images\/media\/default.png","width":885,"height":193,"sizes":{"thumbnail":"https:\/\/barcainnovationhub.com\/wp-content\/uploads\/2018\/07\/0b30bf08-figura-1-el-estudio-de-las-acelaraciones-y-desaceleraciones-150x150.png","thumbnail-width":150,"thumbnail-height":150,"medium":"https:\/\/barcainnovationhub.com\/wp-content\/uploads\/2018\/07\/0b30bf08-figura-1-el-estudio-de-las-acelaraciones-y-desaceleraciones-300x65.png","medium-width":300,"medium-height":65,"medium_large":"https:\/\/barcainnovationhub.com\/wp-content\/uploads\/2018\/07\/0b30bf08-figura-1-el-estudio-de-las-acelaraciones-y-desaceleraciones-768x167.png","medium_large-width":768,"medium_large-height":167,"large":"https:\/\/barcainnovationhub.com\/wp-content\/uploads\/2018\/07\/0b30bf08-figura-1-el-estudio-de-las-acelaraciones-y-desaceleraciones.png","large-width":885,"large-height":193,"1536x1536":"https:\/\/barcainnovationhub.com\/wp-content\/uploads\/2018\/07\/0b30bf08-figura-1-el-estudio-de-las-acelaraciones-y-desaceleraciones.png","1536x1536-width":885,"1536x1536-height":193,"2048x2048":"https:\/\/barcainnovationhub.com\/wp-content\/uploads\/2018\/07\/0b30bf08-figura-1-el-estudio-de-las-acelaraciones-y-desaceleraciones.png","2048x2048-width":885,"2048x2048-height":193}},"epigrafe":"Figura 1. Acceleraci\u00f3 en funci\u00f3 del temps durant un partit de futbol on s\u2019estableixen els llindars a partir dels quals es consideren les acceleracions com d\u2019alta intensitat, que, a l\u2019exemple exposat, est\u00e0 marcat a una intensitat de 2.5 m\u00b7s-2."},{"acf_fc_layout":"bloque_de_texto","bloque_de_texto":"<p>A l\u2019exemple que s\u2019adjunta, s\u2019utilitza el llindar de &gt;2.5 m\u00b7s<sup>-2<\/sup> i &lt;-2.5 m\u00b7s<sup>-2<\/sup> per categoritzar les acceleracions i desacceleracions com d\u2019alta intensitat. Hem de tenir en compte que una acci\u00f3 d\u2019alta velocitat de despla\u00e7ament no sempre va precedida d\u2019una acci\u00f3 d\u2019alt nivell d\u2019acceleraci\u00f3, ja que l\u2019esportista pot accelerar a poc a poc durant m\u00e9s temps. En aquest sentit, la capacitat m\u00e0xima d\u2019acceleraci\u00f3 d\u2019un esportista est\u00e0 relacionada amb les seves capacitats f\u00edsiques i, per tant, a mesura que els sistemes de registre millorin la fiabilitat, la validesa i la precisi\u00f3, aquests llindars d\u2019intensitat hauran d\u2019atendre als perfils individuals del jugador. A m\u00e9s a m\u00e9s, la capacitat d\u2019acceleraci\u00f3 m\u00e0xima de l&#8217;esportista dep\u00e8n de la velocitat inicial de despla\u00e7ament, de manera que, si la velocitat inicial de despla\u00e7ament \u00e9s major, la capacitat d&#8217;acceleraci\u00f3 m\u00e0xima de l&#8217;esportista es redueix. Per tant, l\u2019\u00fas de llindars d\u2019intensitat d\u2019acceleraci\u00f3 absoluts (per exemple, si considerem accions d\u2019alta intensitat d\u2019acceleraci\u00f3 aquelles que superen el valor de 2.5 m\u00b7s<sup>-2<\/sup>) podria subestimar les accions realitzades per l&#8217;esportista amb una velocitat inicial de despla\u00e7ament alta, mentre que pogu\u00e9s sobreestimar les accions realitzades des de velocitats de despla\u00e7ament baixes (Sonderegger et al., 2016). De manera m\u00e9s concreta, si considerem com a llindar per categoritzar les accions com d\u2019alta intensitat el valor de &gt;2.5 m\u00b7s<sup>-2<\/sup>, aquest llindar representa un esfor\u00e7 m\u00e0xim si la velocitat inicial \u00e9s propera a 5 m\u00b7s<sup>-1<\/sup>, per\u00f2, tanmateix, representa un llindar per sota del 50% de les possibilitats m\u00e0ximes de l\u2019esportista davant d\u2019un esfor\u00e7 d&#8217;acceleraci\u00f3 estant aturat.<\/p>\n<h4><a href=\"http:\/\/barcainnovationhub.com\/ca\/product\/certificat-en-gestio-de-la-carrega-del-treball-en-futbol\/\" target=\"_blank\" rel=\"noopener\">Apunta\u2019t al Certificat en Gesti\u00f3 de la C\u00e0rrega del Treball en Futbol, dissenyat per David Casamichana<\/a><\/h4>\n<p>A continuaci\u00f3, es detallen les acceleracions dels 10 jugadors de camp que participen durant un partit de futbol i es relaciona la velocitat inicial del despla\u00e7ament i la magnitud de l\u2019acceleraci\u00f3. Tal com es pot observar, a mesura que augmenten les velocitats inicials de despla\u00e7ament, disminueixen les magnituds de les acceleracions realitzades pels esportistes. Per exemple, no s\u2019enregistren acceleracions per sobre de 3.5 m\u00b7s<sup>-2<\/sup> amb velocitats inicials de despla\u00e7ament superiors a 15 km\u00b7h<sup>-1<\/sup>. Hem de tenir present que en aquesta figura s\u2019hi representa la velocitat inicial de les acceleracions que realitzen els jugadors durant la competici\u00f3, mentre que en estudis previs com el de Sonderegger et al. (2016) hi apareixen valors m\u00e0xims obtinguts pels esportistes en carreres amb diferents velocitats inicials de despla\u00e7ament.<\/p>\n"},{"acf_fc_layout":"imagen_apaisada","imagen_apaisada":{"ID":5172,"id":5172,"title":"","filename":"Figura-2-el-estudio-de-las-aceleraciones-y-desaceleraciones.png","filesize":0,"url":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/Figura-2-el-estudio-de-las-aceleraciones-y-desaceleraciones.png","link":"https:\/\/barcainnovationhub.com\/ca\/aceleraciones-alta-intensidad-futbol\/figura-2-el-estudio-de-las-aceleraciones-y-desaceleraciones\/","alt":"","author":"1","description":"","caption":"","name":"figura-2-el-estudio-de-las-aceleraciones-y-desaceleraciones","status":"inherit","uploaded_to":5170,"date":"2018-07-10 18:17:31","modified":"2018-07-10 18:43:14","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/barcainnovationhub.com\/wp-includes\/images\/media\/default.png","width":885,"height":483,"sizes":{"thumbnail":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/Figura-2-el-estudio-de-las-aceleraciones-y-desaceleraciones-150x150.png","thumbnail-width":150,"thumbnail-height":150,"medium":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/Figura-2-el-estudio-de-las-aceleraciones-y-desaceleraciones-300x164.png","medium-width":300,"medium-height":164,"medium_large":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/Figura-2-el-estudio-de-las-aceleraciones-y-desaceleraciones-768x419.png","medium_large-width":768,"medium_large-height":419,"large":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/Figura-2-el-estudio-de-las-aceleraciones-y-desaceleraciones.png","large-width":885,"large-height":483,"1536x1536":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/Figura-2-el-estudio-de-las-aceleraciones-y-desaceleraciones.png","1536x1536-width":885,"1536x1536-height":483,"2048x2048":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp\/wp-content\/uploads\/2018\/07\/Figura-2-el-estudio-de-las-aceleraciones-y-desaceleraciones.png","2048x2048-width":885,"2048x2048-height":483}},"epigrafe":"Figura 2. Relaci\u00f3 entre la velocitat inicial de despla\u00e7ament i la magnitud de l\u2019acceleraci\u00f3 durant un partit de categoria juvenil."},{"acf_fc_layout":"bloque_de_texto","bloque_de_texto":"<p>Per \u00faltim, tamb\u00e9 \u00e9s rellevant remarcar que els valors d&#8217;acceleraci\u00f3 (nombre d\u2019accions, dist\u00e0ncia recorreguda en metres o en % del total, temps en segons o en % del total) s\u2019obt\u00e9 a partir dels valors de posicionament i no a partir dels acceler\u00f2metres que contenen alguns dels dispositius comercialitzats avui en dia. En part, aix\u00f2 explica que la fiabilitat i la validesa de les mesures d&#8217;acceleraci\u00f3 \u00e9s acceleraci\u00f3 i velocitat depenent, amb pitjors resultats quan la velocitat de despla\u00e7ament i\/o la magnitud de l&#8217;acceleraci\u00f3 s\u2019incrementa. \u00a0 <em><strong>David Casamichana G\u00f3mez<\/strong>, Doctor en Ci\u00e8ncies de l\u2019Activitat F\u00edsica i de l\u2019Esport. Preparador f\u00edsic en futbol. Professor universitari i investigador. Expert del programa <a href=\"http:\/\/barcainnovationhub.com\/ca\/product\/certificat-en-gestio-de-la-carrega-del-treball-en-futbol\/\" target=\"_blank\" rel=\"noopener\">Certificat en Gesti\u00f3 de la C\u00e0rrega del Treball en Futbol<\/a> de Bar\u00e7a Innovation Hub \u2013 Universitas.<\/em> \u00a0 \u00a0 <strong>Refer\u00e8ncies<\/strong> Buchheit M, Al Haddad H, Simpson BM, Palazzi D, Bourdon PC, Di Salvo V, and Mendez-Villaneuva A. Monitoring accelerations with GPS in football: time to slow down? <em>Int J Sports Physiol Perform<\/em>. 2014;9:442-445 Castellano, J., &amp; Casamichana, D., (2013). Differences in the number of accelerations between small-sided games and friendly matches in soccer. <em>Journal of Sports Science and Medicine<\/em>, 12(1), 209-210. Hodgson, C., Akenhead, R., &amp; Thomas, K. (2014). Time-motion analysis of acceleration demands of 4v4 small-sided soccer games played on different pitch sizes. <em>Human Movement Science<\/em>, 33, 25-32. Osgnach, C., Poser, S., Bernardini, R., Rinaldo, R., &amp; di Prampero, P. E . (2010). Energy cost and metabolic power in elite soccer: a new match analysis approach. <em>Medicine &amp; Science in Sports &amp; Exercise<\/em>, 42, 170 \u2013 178. Sonderegger K, Tschopp M, TaubeW (2016) The Challenge of Evaluating the Intensity of Short Actions in Soccer: A New Methodological Approach Using Percentage Acceleration<em>. PLoS ONE<\/em> 11(11): e0166534. doi:10.1371\/journal. pone.0166534. Varley, M.C., &amp; Aughey, R.J. (2013). Acceleration profiles in elite Australian soccer. <em>Int J Sports Med<\/em>. 34(1):34-9.<\/p>\n"}],"banner_1":[{"activar_imagen_unica_para_banner":true,"imagen_unica_para_banner":"https:\/\/static.capabiliaserver.com\/frontend\/clients\/barca\/wp_prod\/wp-content\/uploads\/2021\/07\/3ddfc5ff-fondo-05.png","activar_titulo_banner":true,"titulo_banner":"APUNTA\u2019T AL CERTIFICAT EN GESTI\u00d3 DE LA C\u00c0RREGA DEL TREBALL EN FUTBOL","activar_subtitulo_banner":false,"subtitulo_banner":"","activar_cta_banner":true,"cta_texto_banner":"UNIR-SE ARA","cta_url_banner":"https:\/\/barcainnovationhub.com\/ca\/product\/certificat-en-gestio-de-la-carrega-del-treball-en-futbol\/?utm_source=ads_banner&utm_medium=content&utm_campaign=notas","color_fondo_banner":"","imagen_fondo_banner":false,"activar_imagen_izquierda_banner":false,"imagen_izquierda_banner":false}],"activar_banner_2":false,"banner_2":false,"activar_banner_3":false,"banner_3":false,"id_magento":"","colaboradores":false,"cta_titulo_top":"","cta_boton_top":"","cta_url_top":"","cta_titulo_footer":"","cta_subtitulo_footer":"","cta_boton_footer":"","cta_url_footer":"","activar_nuevos_banners":true,"activar_banner_1":false,"mostrar_banner_1":true,"crear_banner_1":{"utilizar_imagen_unica_para_banner":true,"asignar_imagen_unica_para_banner":"https:\/\/barcainnovationhub.com\/wp-content\/uploads\/2021\/11\/470ca6c8-fondo-01-.png","mostrar_titulo_banner":true,"titulo_para_banner":"APUNTA\u2019T AL CERTIFICAT EN GESTI\u00d3 DE LA C\u00c0RREGA DEL TREBALL EN FUTBOL","mostrar_subtitulo_banner":false,"subtitulo_del_banner":"","mostrar_cta_banner":true,"texto_cta_banner":"UNIR-SE ARA","url_cta_banner":"https:\/\/barcainnovationhub.com\/ca\/product\/certificat-en-gestio-de-la-carrega-del-treball-en-futbol\/?utm_source=ads_banner&utm_medium=content&utm_campaign=notas","fondo_de_color_banner":"","fondo_de_imagen_banner":false,"mostrar_imagen_izquierda_banner":false,"asignar_imagen_izquierda_banner":false},"mostrar_banner_2":false,"crear_banner_2":{"utilizar_imagen_unica_para_banner":false,"asignar_imagen_unica_para_banner":false,"mostrar_titulo_banner":false,"titulo_para_banner":"","mostrar_subtitulo_banner":false,"subtitulo_del_banner":"","mostrar_cta_banner":false,"texto_cta_banner":"","url_cta_banner":"","fondo_de_color_banner":"","fondo_de_imagen_banner":false,"mostrar_imagen_izquierda_banner":false,"asignar_imagen_izquierda_banner":false},"mostrar_banner_3":false,"crear_banner_3":{"utilizar_imagen_unica_para_banner":false,"asignar_imagen_unica_para_banner":false,"mostrar_titulo_banner":false,"titulo_para_banner":"","mostrar_subtitulo_banner":false,"subtitulo_del_banner":"","mostrar_cta_banner":false,"texto_cta_banner":"","url_cta_banner":"","fondo_de_color_banner":"","fondo_de_imagen_banner":false,"mostrar_imagen_izquierda_banner":false,"asignar_imagen_izquierda_banner":false},"alineacion_vertical_header":"center"},"_links":{"self":[{"href":"https:\/\/barcainnovationhub.com\/ca\/wp-json\/wp\/v2\/posts\/5178"}],"collection":[{"href":"https:\/\/barcainnovationhub.com\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/barcainnovationhub.com\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/barcainnovationhub.com\/ca\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/barcainnovationhub.com\/ca\/wp-json\/wp\/v2\/comments?post=5178"}],"version-history":[{"count":5,"href":"https:\/\/barcainnovationhub.com\/ca\/wp-json\/wp\/v2\/posts\/5178\/revisions"}],"predecessor-version":[{"id":109381,"href":"https:\/\/barcainnovationhub.com\/ca\/wp-json\/wp\/v2\/posts\/5178\/revisions\/109381"}],"wp:attachment":[{"href":"https:\/\/barcainnovationhub.com\/ca\/wp-json\/wp\/v2\/media?parent=5178"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/barcainnovationhub.com\/ca\/wp-json\/wp\/v2\/categories?post=5178"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/barcainnovationhub.com\/ca\/wp-json\/wp\/v2\/tags?post=5178"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}