{"product_id":"spirit-fitness-sp-4310-back-extension","title":"Spirit Fitness SP-4310 Back Extension","description":"\u003ch2 data-section-id=\"53drpp\" data-start=\"0\" data-end=\"21\"\u003eProduct Overview\u003c\/h2\u003e\n\u003cp data-start=\"22\" data-end=\"536\"\u003eThe Spirit Fitness SP-4310 Back Extension is a commercial-grade strength machine engineered to strengthen the lower back and core through controlled extension movements. Designed with user stability and biomechanics in mind, it supports proper spinal alignment while allowing a full range of motion. Its ergonomic pads, adjustable positioning, and compact footprint make it an essential solution for safe, effective posterior chain training in modern fitness facilities. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"22\" data-end=\"536\"\u003ePIN: SP-4310\u003c\/p\u003e\n\u003chr data-start=\"538\" data-end=\"541\"\u003e\n\u003ch2 data-section-id=\"14at72t\" data-start=\"543\" data-end=\"560\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"561\" data-end=\"1720\"\u003e\n\u003cli data-section-id=\"rrxtn9\" data-start=\"561\" data-end=\"738\"\u003e\n\u003cstrong data-start=\"563\" data-end=\"595\"\u003eTargeted Lower Back Training\u003c\/strong\u003e\u003cbr data-start=\"595\" data-end=\"598\"\u003eDesigned to isolate the lumbar region while engaging the core for improved strength and stability. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"12yrx6n\" data-start=\"740\" data-end=\"916\"\u003e\n\u003cstrong data-start=\"742\" data-end=\"767\"\u003eAdjustable Roller Pad\u003c\/strong\u003e\u003cbr data-start=\"767\" data-end=\"770\"\u003eAllows precise positioning across the upper back to suit different user sizes and optimize biomechanics. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1o5br1v\" data-start=\"918\" data-end=\"1090\"\u003e\n\u003cstrong data-start=\"920\" data-end=\"952\"\u003eDual Foot Bars for Stability\u003c\/strong\u003e\u003cbr data-start=\"952\" data-end=\"955\"\u003eProvides secure lower-body positioning, ensuring controlled movement throughout the exercise. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"12rkpn3\" data-start=\"1092\" data-end=\"1253\"\u003e\n\u003cstrong data-start=\"1094\" data-end=\"1123\"\u003eSupportive Lower Back Pad\u003c\/strong\u003e\u003cbr data-start=\"1123\" data-end=\"1126\"\u003eEnhances comfort and promotes proper alignment while allowing a full extension range. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1cihm1j\" data-start=\"1255\" data-end=\"1415\"\u003e\n\u003cstrong data-start=\"1257\" data-end=\"1291\"\u003eSmooth Cable-Driven Resistance\u003c\/strong\u003e\u003cbr data-start=\"1291\" data-end=\"1294\"\u003eEnsures fluid motion and consistent resistance for safe and effective training. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"6dlmk4\" data-start=\"1417\" data-end=\"1576\"\u003e\n\u003cstrong data-start=\"1419\" data-end=\"1455\"\u003eIntegrated Rep Counter \u0026amp; Storage\u003c\/strong\u003e\u003cbr data-start=\"1455\" data-end=\"1458\"\u003eTracks workout performance and offers convenient storage for personal items. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"jhk4ry\" data-start=\"1578\" data-end=\"1720\"\u003e\n\u003cstrong data-start=\"1580\" data-end=\"1609\"\u003eCompact Commercial Design\u003c\/strong\u003e\u003cbr data-start=\"1609\" data-end=\"1612\"\u003eSpace-efficient footprint ideal for high-traffic gym environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1722\" data-end=\"1725\"\u003e\n\u003ch2 data-section-id=\"1qhk4i3\" data-start=\"1727\" data-end=\"1746\"\u003eSpecifications\u003c\/h2\u003e\n\u003ch3 data-section-id=\"uuyzr2\" data-start=\"1748\" data-end=\"1765\"\u003ePerformance\u003c\/h3\u003e\n\u003cul data-start=\"1766\" data-end=\"2188\"\u003e\n\u003cli data-section-id=\"hzvyce\" data-start=\"1766\" data-end=\"1828\"\u003e\n\u003cstrong data-start=\"1768\" data-end=\"1786\"\u003eExercise Type:\u003c\/strong\u003e Back extension (lumbar \/ core training)\u003c\/li\u003e\n\u003cli data-section-id=\"cclwfx\" data-start=\"1829\" data-end=\"1881\"\u003e\n\u003cstrong data-start=\"1831\" data-end=\"1853\"\u003eResistance System:\u003c\/strong\u003e Selectorized weight stack\u003c\/li\u003e\n\u003cli data-section-id=\"uf4muy\" data-start=\"1882\" data-end=\"1931\"\u003e\n\u003cstrong data-start=\"1884\" data-end=\"1901\"\u003eWeight Stack:\u003c\/strong\u003e 123 – 128 kg (271 – 280 lb)\u003c\/li\u003e\n\u003cli data-section-id=\"fapsv8\" data-start=\"1932\" data-end=\"2013\"\u003e\n\u003cstrong data-start=\"1934\" data-end=\"1948\"\u003eIncrement:\u003c\/strong\u003e 5 lb (2.2 kg) increments \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"153xpf2\" data-start=\"2014\" data-end=\"2085\"\u003e\n\u003cstrong data-start=\"2016\" data-end=\"2029\"\u003eMovement:\u003c\/strong\u003e Cable-driven system for smooth, controlled resistance\u003c\/li\u003e\n\u003cli data-section-id=\"1f40zvi\" data-start=\"2086\" data-end=\"2188\"\u003e\n\u003cstrong data-start=\"2088\" data-end=\"2107\"\u003eTarget Muscles:\u003c\/strong\u003e Lower back, glutes, and core stabilizers \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"skaw84\" data-start=\"2195\" data-end=\"2215\"\u003eDesign \u0026amp; Build\u003c\/h3\u003e\n\u003cul data-start=\"2216\" data-end=\"2630\"\u003e\n\u003cli data-section-id=\"1g8heaa\" data-start=\"2216\" data-end=\"2264\"\u003e\n\u003cstrong data-start=\"2218\" data-end=\"2228\"\u003eFrame:\u003c\/strong\u003e Heavy-duty commercial-grade steel\u003c\/li\u003e\n\u003cli data-section-id=\"wyindf\" data-start=\"2265\" data-end=\"2310\"\u003e\n\u003cstrong data-start=\"2267\" data-end=\"2278\"\u003eFinish:\u003c\/strong\u003e Durable powder-coated surface\u003c\/li\u003e\n\u003cli data-section-id=\"1503dtp\" data-start=\"2311\" data-end=\"2382\"\u003e\n\u003cstrong data-start=\"2313\" data-end=\"2322\"\u003ePads:\u003c\/strong\u003e Adjustable upper roller pad and supportive lower back pad\u003c\/li\u003e\n\u003cli data-section-id=\"17cejin\" data-start=\"2383\" data-end=\"2449\"\u003e\n\u003cstrong data-start=\"2385\" data-end=\"2402\"\u003eFoot Support:\u003c\/strong\u003e Dual foot bars for stability and positioning\u003c\/li\u003e\n\u003cli data-section-id=\"sk9bs5\" data-start=\"2450\" data-end=\"2511\"\u003e\n\u003cstrong data-start=\"2452\" data-end=\"2467\"\u003eCushioning:\u003c\/strong\u003e High-density foam with durable upholstery\u003c\/li\u003e\n\u003cli data-section-id=\"xj187k\" data-start=\"2512\" data-end=\"2630\"\u003e\n\u003cstrong data-start=\"2514\" data-end=\"2539\"\u003eConvenience Features:\u003c\/strong\u003e Rep counter, storage tray, enclosed weight stack \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-section-id=\"1tz1b13\" data-start=\"2637\" data-end=\"2664\"\u003eDimensions \u0026amp; Capacity\u003c\/h3\u003e\n\u003cul data-start=\"2665\" data-end=\"3101\"\u003e\n\u003cli data-section-id=\"19ouc7w\" data-start=\"2665\" data-end=\"2776\"\u003e\n\u003cstrong data-start=\"2667\" data-end=\"2694\"\u003eDimensions (L × W × H):\u003c\/strong\u003e 1223 × 1219 × 1500 mm (48\" × 48\" × 59\") \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1i4r4bz\" data-start=\"2777\" data-end=\"2856\"\u003e\n\u003cstrong data-start=\"2779\" data-end=\"2798\"\u003eMachine Weight:\u003c\/strong\u003e 248 kg \/ 530 lb \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"o973yf\" data-start=\"2857\" data-end=\"2946\"\u003e\n\u003cstrong data-start=\"2859\" data-end=\"2876\"\u003eWeight Stack:\u003c\/strong\u003e 123 – 128 kg (271 – 280 lb) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1wqd4ol\" data-start=\"2947\" data-end=\"3039\"\u003e\n\u003cstrong data-start=\"2949\" data-end=\"2973\"\u003eMaximum User Weight:\u003c\/strong\u003e Approx. 180 kg \/ 397 lb \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"mdmfok\" data-start=\"3040\" data-end=\"3101\"\u003e\n\u003cstrong data-start=\"3042\" data-end=\"3056\"\u003eFootprint:\u003c\/strong\u003e Compact, space-efficient commercial design\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Spirit Fitness","offers":[{"title":"Default Title","offer_id":53014665560361,"sku":"SP-4310","price":0.0,"currency_code":"AED","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0845\/7430\/6601\/files\/9ab980_6825b7447a75494c9058f25b50de24db_mv2.avif?v=1776670959","url":"https:\/\/wellnessfirst.com\/ar\/products\/spirit-fitness-sp-4310-back-extension","provider":"Wellness First","version":"1.0","type":"link"}