{"id":455,"date":"2025-09-30T15:24:18","date_gmt":"2025-09-30T15:24:18","guid":{"rendered":"https:\/\/johnpeterfitness.es\/?post_type=product&p=455"},"modified":"2025-11-18T10:24:35","modified_gmt":"2025-11-18T10:24:35","slug":"pc20-extension-de-cuadriceps","status":"publish","type":"product","link":"https:\/\/johnpeterfitness.es\/en\/product\/pc20-extension-de-cuadriceps\/","title":{"rendered":"PC20 EXTENSI\u00d3N DE CUADRICEPS"},"content":{"rendered":"

Esta m\u00e1quina ha sido desarrollada ergon\u00f3micamente para proporcionar un movimiento natural y fluido, maximizando la efectividad de los ejercicios dirigidos a esta zona y cumpliendo con la norma EN-957 Clase S. Est\u00e1 dise\u00f1ada para ofrecer la m\u00e1xima comodidad durante el ejercicio, con opciones ajustables tanto en el asiento como en el rodillo acolchado. Permite un movimiento natural al ejercitar las piernas y enfocar la tensi\u00f3n en los cu\u00e1driceps. Una de las caracter\u00edsticas m\u00e1s destacadas de esta m\u00e1quina de extensiones es su carenado, tanto delantero como trasero, que permite una extensi\u00f3n completa y, al mismo tiempo, evita accidentes mientras las placas est\u00e1n en movimiento.<\/span><\/p>\n<\/p>\n

\u00a0<\/span>\u00a0\u00a0CARACTER\u00cdSTICAS T\u00c9CNICAS<\/span><\/strong><\/span><\/p>\n

\n

*\u00a0 \u00a0Estructura construida en tubo oval de acero de alta calidad de 3 mm. de espesor.<\/span><\/p>\n

*\u00a0 \u00a0Partes m\u00f3viles montadas con pletina de 0.5 cm. de espesor.<\/span><\/p>\n

*\u00a0 \u00a0Partes desmontables de acero macizo con el que se evitan problemas de desgaste.<\/span><\/p>\n

*\u00a0 \u00a0Las m\u00e1quinas est\u00e1n montadas sobre rodamientos (circulares o lineales) o ruedas de bronce y rodamientos.<\/span><\/p>\n

*\u00a0 \u00a0Brazos contrabalanceados. Anulan el peso de la parte de la estructura que hay que mover, para levantar s\u00f3lo el peso seleccionado con las placas.<\/span><\/p>\n

*\u00a0 \u00a0Uso de sistema de levas para desarrollar un peso uniforme. Mantiene el brazo de fuerza con una resistencia constante durante todo el recorrido.<\/span><\/p>\n

*\u00a0 \u00a0El proceso de pintado de las m\u00e1quinas se realiza en t\u00fanel de tratamiento de cuatro capas, que ofrece una absoluta garant\u00eda contra la corrosi\u00f3n.<\/span><\/p>\n

*\u00a0 \u00a0En la primera capa se procede al desengrasado y fosfatado en caliente.<\/span><\/p>\n

*\u00a0 \u00a0La segunda se trata de un pre fosfatado a temperatura ambiente. <\/span><\/p>\n

*\u00a0 \u00a0En la tercera se procede a fosfatar en caliente. Y por \u00faltimo, se cubre la estructura con pintura epoxi en polvo.<\/span><\/p>\n

*\u00a0 \u00a0Las placas son de acero calibrado, pintadas en negro, estas tienen anillos de tefl\u00f3n de una calidad superior, lo cual produce un deslizamiento correcto y evita ruidos por fricci\u00f3n.<\/span><\/p>\n

*\u00a0 \u00a0Selectores de placas magnetizados. Los imanes evitan que el selector se salga durante el ejercicio.<\/span><\/p>\n

*\u00a0 \u00a0Torre de placas con indicadores de peso en kg. y en lbs.<\/span><\/p>\n

*\u00a0 \u00a0 Las barras gu\u00edas son de acero inoxidable.<\/span><\/p>\n

*\u00a0 \u00a0Transmisi\u00f3n por cable.<\/span><\/p>\n

*\u00a0 \u00a0Carenados delantero y trasero para evitar accidentes mientras las placas est\u00e1n en movimiento.<\/span><\/p>\n

*\u00a0 \u00a0Ajustes del asiento, del respaldo y de los rodillos acolchados.<\/span><\/p>\n

*\u00a0 \u00a0Permite la adaptaci\u00f3n de las m\u00e1quinas a cualquier usuario y ayuda a realizar los ejercicios con la postura correcta.<\/span><\/p>\n

*\u00a0 \u00a0Selectores de ajuste de color rojo para localizarlos f\u00e1cilmente.<\/span><\/p>\n

*\u00a0 \u00a0Agarres de goma no absorbente y antideslizante. Son altamente resistentes.<\/span><\/p>\n

*\u00a0 \u00a0Incluye dos bandejas de gran dimensi\u00f3n como soporte botellero y portaobjetos.<\/span><\/p>\n

*\u00a0 \u00a0Tapizado con relleno viscoel\u00e1stico y polipiel antibacteriana e ign\u00edfuga.<\/span><\/p>\n

*\u00a0 \u00a0Pictograma explicativo sobre la postura correcta para la realizaci\u00f3n del ejercicio y los m\u00fasculos implicados en el mismo.<\/span><\/p>\n

\u00a0<\/span>\u00a0<\/span><\/p>\n

DIMENSIONES Y PESO<\/strong><\/span>\u00a0<\/span><\/p>\n

Largo: 147.5 cm.<\/span><\/p>\n

Ancho: 126 cm.<\/span><\/p>\n

Alto: 150 cm.<\/span><\/p>\n

Peso: 228 kg.<\/span><\/p>\n

Carga de placas: 6 placas (10 LB) \u2013 8 placas (20 LB)<\/span><\/p>\n

Total carga de placas: 115.17 kg.<\/span><\/p>\n<\/p>\n

\u00a0<\/span><\/p>\n

\u00a0<\/span><\/p>\n

\n<\/p><\/p>","protected":false},"excerpt":{"rendered":"

El modelo PC2005 de Etenon Fitness cuenta con un dise\u00f1o elegante y est\u00e9tico, respaldado por un exhaustivo estudio de calidad que garantiza un uso totalmente profesional, enfocado en la zona de los cu\u00e1driceps y su completa extensi\u00f3n.<\/span><\/p><\/p>","protected":false},"featured_media":508,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":""},"product_brand":[100],"product_cat":[54,33],"product_tag":[],"class_list":{"0":"post-455","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-etenon","7":"product_cat-maquinas-de-placas","8":"product_cat-musculacion","10":"first","11":"instock","12":"sale","13":"shipping-taxable","14":"purchasable","15":"product-type-simple"},"yoast_head":"\nPC20 EXTENSI\u00d3N DE CUADRICEPS - John Peter Fitness<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/johnpeterfitness.es\/en\/product\/pc20-extension-de-cuadriceps\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"PC20 EXTENSI\u00d3N DE CUADRICEPS - 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