{"product_id":"spirit-fitness-sp-3510-leg-extension","title":"Spirit Fitness SP-3510 Leg Extension","description":"\u003ch2 data-end=\"21\" data-start=\"0\" data-section-id=\"53drpp\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-end=\"552\" data-start=\"22\"\u003eThe Spirit Fitness SP-3510 Leg Extension is a commercial-grade strength machine designed to isolate and strengthen the quadriceps through a precise, controlled extension movement. Built with user-focused biomechanics, it ensures proper knee alignment while delivering smooth, consistent resistance. With ergonomic adjustability, durable construction, and a compact footprint, the SP-3510 is a reliable solution for effective lower-body training in high-performance fitness environments. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-end=\"552\" data-start=\"22\"\u003ePIN: SP-3510\u003c\/p\u003e\n\u003chr data-end=\"557\" data-start=\"554\"\u003e\n\u003ch2 data-end=\"576\" data-start=\"559\" data-section-id=\"14at72t\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-end=\"1843\" data-start=\"577\"\u003e\n\u003cli data-end=\"759\" data-start=\"577\" data-section-id=\"ee2idc\"\u003e\n\u003cstrong data-end=\"612\" data-start=\"579\"\u003eTargeted Quadriceps Isolation\u003c\/strong\u003e\u003cbr data-end=\"615\" data-start=\"612\"\u003eEngineered to deliver focused muscle activation for building strength and definition in the upper leg. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"955\" data-start=\"761\" data-section-id=\"6dge4i\"\u003e\n\u003cstrong data-end=\"796\" data-start=\"763\"\u003eAdjustable Back Pad Alignment\u003c\/strong\u003e\u003cbr data-end=\"799\" data-start=\"796\"\u003eEnsures correct positioning with the machine’s axis of rotation for optimal biomechanics and reduced joint stress. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1128\" data-start=\"957\" data-section-id=\"x1qzha\"\u003e\n\u003cstrong data-end=\"987\" data-start=\"959\"\u003eSelf-Adjusting Tibia Pad\u003c\/strong\u003e\u003cbr data-end=\"990\" data-start=\"987\"\u003eAutomatically adapts to different leg lengths, minimizing setup time and improving user comfort. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1311\" data-start=\"1130\" data-section-id=\"15rcdsn\"\u003e\n\u003cstrong data-end=\"1162\" data-start=\"1132\"\u003eAdjustable Range of Motion\u003c\/strong\u003e\u003cbr data-end=\"1165\" data-start=\"1162\"\u003eAccommodates varying flexibility levels, making it suitable for general training and rehabilitation use. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1496\" data-start=\"1313\" data-section-id=\"t6ixqt\"\u003e\n\u003cstrong data-end=\"1349\" data-start=\"1315\"\u003eSmooth Cable-Driven Resistance\u003c\/strong\u003e\u003cbr data-end=\"1352\" data-start=\"1349\"\u003eProvides fluid, controlled motion throughout the full extension range for safe and effective workouts. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1661\" data-start=\"1498\" data-section-id=\"174wsxn\"\u003e\n\u003cstrong data-end=\"1536\" data-start=\"1500\"\u003eIntegrated Storage \u0026amp; Convenience\u003c\/strong\u003e\u003cbr data-end=\"1539\" data-start=\"1536\"\u003eBuilt-in top-cap storage keeps personal items easily accessible during training. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1843\" data-start=\"1663\" data-section-id=\"9a6uqu\"\u003e\n\u003cstrong data-end=\"1696\" data-start=\"1665\"\u003eCommercial-Grade Durability\u003c\/strong\u003e\u003cbr data-end=\"1699\" data-start=\"1696\"\u003eHeavy-duty steel frame and premium upholstery ensure long-term performance in high-traffic facilities. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1848\" data-start=\"1845\"\u003e\n\u003ch2 data-end=\"1869\" data-start=\"1850\" data-section-id=\"1qhk4i3\"\u003eSpecifications\u003c\/h2\u003e\n\u003ch3 data-end=\"1888\" data-start=\"1871\" data-section-id=\"uuyzr2\"\u003ePerformance\u003c\/h3\u003e\n\u003cul data-end=\"2259\" data-start=\"1889\"\u003e\n\u003cli data-end=\"1948\" data-start=\"1889\" data-section-id=\"o7ntn5\"\u003e\n\u003cstrong data-end=\"1909\" data-start=\"1891\"\u003eExercise Type:\u003c\/strong\u003e Leg extension (quadriceps isolation)\u003c\/li\u003e\n\u003cli data-end=\"2001\" data-start=\"1949\" data-section-id=\"cclwfx\"\u003e\n\u003cstrong data-end=\"1973\" data-start=\"1951\"\u003eResistance System:\u003c\/strong\u003e Selectorized weight stack\u003c\/li\u003e\n\u003cli data-end=\"2077\" data-start=\"2002\" data-section-id=\"mkaz0q\"\u003e\n\u003cstrong data-end=\"2021\" data-start=\"2004\"\u003eWeight Stack:\u003c\/strong\u003e 110 kg \/ 240 lb \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2152\" data-start=\"2078\" data-section-id=\"7tx2bi\"\u003e\n\u003cstrong data-end=\"2094\" data-start=\"2080\"\u003eIncrement:\u003c\/strong\u003e 7.5 lb increments \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2224\" data-start=\"2153\" data-section-id=\"153xpf2\"\u003e\n\u003cstrong data-end=\"2168\" data-start=\"2155\"\u003eMovement:\u003c\/strong\u003e Cable-driven system for smooth, controlled resistance\u003c\/li\u003e\n\u003cli data-end=\"2259\" data-start=\"2225\" data-section-id=\"1v11fse\"\u003e\n\u003cstrong data-end=\"2246\" data-start=\"2227\"\u003eTarget Muscles:\u003c\/strong\u003e Quadriceps\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2286\" data-start=\"2266\" data-section-id=\"skaw84\"\u003eDesign \u0026amp; Build\u003c\/h3\u003e\n\u003cul data-end=\"2643\" data-start=\"2287\"\u003e\n\u003cli data-end=\"2335\" data-start=\"2287\" data-section-id=\"1g8heaa\"\u003e\n\u003cstrong data-end=\"2299\" data-start=\"2289\"\u003eFrame:\u003c\/strong\u003e Heavy-duty commercial-grade steel\u003c\/li\u003e\n\u003cli data-end=\"2381\" data-start=\"2336\" data-section-id=\"wyindf\"\u003e\n\u003cstrong data-end=\"2349\" data-start=\"2338\"\u003eFinish:\u003c\/strong\u003e Durable powder-coated surface\u003c\/li\u003e\n\u003cli data-end=\"2456\" data-start=\"2382\" data-section-id=\"pw8ch\"\u003e\n\u003cstrong data-end=\"2400\" data-start=\"2384\"\u003eSeat \u0026amp; Pads:\u003c\/strong\u003e Adjustable back pad with high-density foam cushioning\u003c\/li\u003e\n\u003cli data-end=\"2524\" data-start=\"2457\" data-section-id=\"ycz7z0\"\u003e\n\u003cstrong data-end=\"2471\" data-start=\"2459\"\u003eLeg Pad:\u003c\/strong\u003e Self-adjusting tibia pad for ergonomic positioning\u003c\/li\u003e\n\u003cli data-end=\"2577\" data-start=\"2525\" data-section-id=\"1uu3j31\"\u003e\n\u003cstrong data-end=\"2541\" data-start=\"2527\"\u003eMechanics:\u003c\/strong\u003e Adjustable range-of-motion system\u003c\/li\u003e\n\u003cli data-end=\"2643\" data-start=\"2578\" data-section-id=\"1obdwgi\"\u003e\n\u003cstrong data-end=\"2605\" data-start=\"2580\"\u003eConvenience Features:\u003c\/strong\u003e Storage tray, enclosed weight stack\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"2677\" data-start=\"2650\" data-section-id=\"1tz1b13\"\u003eDimensions \u0026amp; Capacity\u003c\/h3\u003e\n\u003cul data-end=\"3120\" data-start=\"2678\"\u003e\n\u003cli data-end=\"2789\" data-start=\"2678\" data-section-id=\"1x848j8\"\u003e\n\u003cstrong data-end=\"2707\" data-start=\"2680\"\u003eDimensions (L × W × H):\u003c\/strong\u003e 1156 × 1407 × 1592 mm (46\" × 55\" × 63\") \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2869\" data-start=\"2790\" data-section-id=\"v4lfrd\"\u003e\n\u003cstrong data-end=\"2811\" data-start=\"2792\"\u003eMachine Weight:\u003c\/strong\u003e 264 kg \/ 583 lb \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2947\" data-start=\"2870\" data-section-id=\"1o4yc8a\"\u003e\n\u003cstrong data-end=\"2889\" data-start=\"2872\"\u003eWeight Stack:\u003c\/strong\u003e 110 kg \/ 240 lb \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3044\" data-start=\"2948\" data-section-id=\"vixtv3\"\u003e\n\u003cstrong data-end=\"2978\" data-start=\"2950\"\u003eMaximum Selectable Load:\u003c\/strong\u003e Approx. 110 kg (243 lb) \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3120\" data-start=\"3045\" data-section-id=\"vu554n\"\u003e\n\u003cstrong data-end=\"3061\" data-start=\"3047\"\u003eFootprint:\u003c\/strong\u003e Compact commercial design suitable for strength circuits\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spirit Fitness","offers":[{"title":"Default Title","offer_id":53017357418793,"sku":"SP-3510","price":0.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/7430\/6601\/files\/Screenshot2026-04-20171253.png?v=1776690834","url":"https:\/\/wellnessfirst.com\/ar-sa\/products\/spirit-fitness-sp-3510-leg-extension","provider":"Wellness First","version":"1.0","type":"link"}