{"product_id":"nautilus-nitro-plus-leg-extension","title":"Nautilus Nitro Plus Leg Extension","description":"\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003eNautilus Nitro Plus Leg Extension\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e is a commercial-grade selectorized strength machine engineered to effectively isolate and strengthen the quadriceps while providing smooth, controlled resistance throughout the entire range of motion.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe Nitro Plus Leg Extension positions the user to achieve \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003emaximum knee extension while maintaining proper joint and machine axis alignment\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e. Its reclined seating position helps reduce hamstring interference, allowing the quadriceps to work through a complete range of motion and achieve a strong contraction at full extension.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eA specially engineered \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003evariable resistance cam profile\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e provides smooth resistance that complements the natural strength curve of the quadriceps. This creates consistent loading throughout the movement rather than placing excessive resistance at a single point in the exercise.\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eThe machine features a \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003equick-set adjustable leg pad\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, allowing users of different heights and leg lengths to establish the proper starting position quickly and easily. A heavily padded movement arm roller provides comfortable contact against the lower legs, while the contoured seat and back support help maintain a stable training position throughout the exercise.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eConvenient integrated handles give users additional upper-body stability, particularly during heavier sets, allowing them to focus on controlled knee extension and quadriceps engagement.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan\u003eFeatures\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eCommercial-grade selectorized leg extension\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eDesigned to effectively isolate the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003equadriceps\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eReclined seating position promotes full quadriceps contraction\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMaintains proper alignment between the knee and machine pivot point\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eVariable resistance cam provides smooth resistance throughout the movement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eImproved cam profile encourages a strong contraction at full extension\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eQuick-set adjustable leg pad accommodates users of different heights\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eHeavily padded movement arm roller for lower-leg comfort\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eContoured seat and back pad provide comfortable, stable positioning\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eIntegrated handles provide additional stability during exercise\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan\u003eSelectorized design allows quick and convenient resistance changes\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cspan\u003eSpecifications\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eDimensions:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e 55\" L × 36\" W × 54\" H\u003c\/span\u003e\u003cbr\u003e\u003cstrong\u003e\u003cspan\u003eMachine Weight:\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e Approximately 557 lbs\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp class=\"isSelectedEnd\"\u003e\u003cspan\u003eThe Nautilus Nitro Plus Leg Extension primarily targets the \u003c\/span\u003e\u003cstrong\u003e\u003cspan\u003equadriceps\u003c\/span\u003e\u003c\/strong\u003e\u003cspan\u003e, including the rectus femoris, vastus lateralis, vastus medialis, and vastus intermedius.\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"Buy \u0026 Sell Fitness","offers":[{"title":"Default Title","offer_id":67573287256368,"sku":null,"price":2495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0401\/0229\/7645\/files\/WhatsAppImage2026-08-21at4.24.15PM_1.jpg?v=1787344173","url":"https:\/\/www.buyandsellfitness.com\/products\/nautilus-nitro-plus-leg-extension","provider":"Buy \u0026 Sell Fitness","version":"1.0","type":"link"}