{"product_id":"hoist-leg-curl-leg-extension-1","title":"Hoist Leg Curl\/Leg Extension - HD-3400 White","description":"\u003ch2 align=\"justify\"\u003eHoist Leg Curl\/Leg Extension - HD-3400 White\u003c\/h2\u003e\n\u003cp align=\"justify\"\u003eThe HOIST Leg Curl\/Leg Extension offers multiple range-of-motion adjustments for both exercises. Eight back pad adjustment settings accommodates a wide range of users and our self-aligning roller pad assists in proper positioning. This machine is one of HOIST’s HD Dual Series line offering an exciting blend of quality components, intuitive adjustments, superior biomechanics and excellent value.\u003c\/p\u003e\n\u003ch5\u003eFeatures\u003c\/h5\u003e\n\u003cul class=\"tabingul\"\u003e\n\u003cli\u003eEight back pad adjustments for varying leg lengths\u003c\/li\u003e\n\u003cli\u003eMultiple range-of-motion adjustments for both exercises\u003c\/li\u003e\n\u003cli\u003eSelf-aligning roller pad\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabingul\"\u003e\n\u003cli\u003e\u003cstrong\u003eWeight Stack\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eStandard (HD): 215 lbs (98 kg) \u003c\/li\u003e\n\u003cli\u003eHeavy Stack (HDG): 240 lbs (109 kg)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabingul\"\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cdiv id=\"description2\"\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003ch5\u003eWhat our Experts Think\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"13w01pn\" data-start=\"26\" data-end=\"176\"\u003e\n\u003cstrong data-start=\"28\" data-end=\"65\"\u003eDual-function lower body station:\u003c\/strong\u003e Combines leg extension and leg curl in one commercial-grade machine for complete quad and hamstring training\u003c\/li\u003e\n\u003cli data-section-id=\"1m48y6x\" data-start=\"177\" data-end=\"309\"\u003e\n\u003cstrong data-start=\"179\" data-end=\"210\"\u003eSmooth biomechanics design:\u003c\/strong\u003e Self-aligning roller pad ensures proper leg positioning and reduces joint strain during movement\u003c\/li\u003e\n\u003cli data-section-id=\"1fjmcsz\" data-start=\"310\" data-end=\"447\"\u003e\n\u003cstrong data-start=\"312\" data-end=\"340\"\u003eHighly adjustable setup:\u003c\/strong\u003e 8 back pad positions allow precise alignment for users of all sizes and optimized knee joint positioning\u003c\/li\u003e\n\u003cli data-section-id=\"1je6icv\" data-start=\"448\" data-end=\"596\"\u003e\n\u003cstrong data-start=\"450\" data-end=\"488\"\u003eControlled range-of-motion system:\u003c\/strong\u003e Adjustable exercise arm settings let users fine-tune extension and curl depth for comfort and progression\u003c\/li\u003e\n\u003cli data-section-id=\"iulmog\" data-start=\"597\" data-end=\"723\"\u003e\n\u003cstrong data-start=\"599\" data-end=\"635\"\u003eCommercial HD Dual Series build:\u003c\/strong\u003e Heavy-duty frame designed for consistent performance in high-traffic gym environments\u003c\/li\u003e\n\u003cli data-section-id=\"woftmj\" data-start=\"724\" data-end=\"845\"\u003e\n\u003cstrong data-start=\"726\" data-end=\"756\"\u003eErgonomic stability focus:\u003c\/strong\u003e Thigh stabilization pad keeps the body secure for strict, isolated lower-body training\u003c\/li\u003e\n\u003cli data-section-id=\"85wx1x\" data-start=\"846\" data-end=\"972\"\u003e\n\u003cstrong data-start=\"848\" data-end=\"882\"\u003eSpace-efficient 2-in-1 design:\u003c\/strong\u003e Replaces two machines while maintaining full training functionality and smooth workflow\u003c\/li\u003e\n\u003cli data-section-id=\"ay82n8\" data-start=\"973\" data-end=\"1077\"\u003e\n\u003cstrong data-start=\"975\" data-end=\"1003\"\u003eHeavy-duty construction:\u003c\/strong\u003e Approx. 557 lb machine weight ensures solid stability under heavy loads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\n\u003cbr\u003eQ\u0026amp;A\u003c\/h5\u003e\n\u003cp data-start=\"81\" data-end=\"283\"\u003e\u003cstrong data-start=\"81\" data-end=\"124\"\u003eQ1: What is the Hoist HD-3400 used for?\u003c\/strong\u003e\u003cbr data-start=\"124\" data-end=\"127\"\u003eA: It is a commercial dual-function machine designed for both leg extension and leg curl exercises, targeting quadriceps and hamstrings in one compact unit.\u003c\/p\u003e\n\u003cp data-start=\"285\" data-end=\"557\"\u003e\u003cstrong data-start=\"285\" data-end=\"353\"\u003eQ2: What makes the HD-3400 different from standard leg machines?\u003c\/strong\u003e\u003cbr data-start=\"353\" data-end=\"356\"\u003eA: It features HOIST’s HD Dual Series design with multiple range-of-motion adjustments, allowing users to fine-tune movement for better biomechanics and comfort. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"559\" data-end=\"828\"\u003e\u003cstrong data-start=\"559\" data-end=\"607\"\u003eQ3: What adjustments does the machine offer?\u003c\/strong\u003e\u003cbr data-start=\"607\" data-end=\"610\"\u003eA: It includes 8 back pad adjustment settings plus multiple range-of-motion settings for both leg extension and leg curl exercises, ensuring proper alignment for different users. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"830\" data-end=\"1066\"\u003e\u003cstrong data-start=\"830\" data-end=\"881\"\u003eQ4: How does the movement feel during training?\u003c\/strong\u003e\u003cbr data-start=\"881\" data-end=\"884\"\u003eA: The self-aligning roller pad automatically adjusts to the user’s leg position, helping reduce joint stress and improving exercise accuracy. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-start=\"1068\" data-end=\"1233\"\u003e\u003cstrong data-start=\"1068\" data-end=\"1104\"\u003eQ5: What muscles does it target?\u003c\/strong\u003e\u003cbr data-start=\"1104\" data-end=\"1107\"\u003eA: It isolates the quadriceps during leg extensions and the hamstrings during leg curls for balanced lower-body development.\u003c\/p\u003e\n\u003cp data-start=\"1235\" data-end=\"1419\"\u003e\u003cstrong data-start=\"1235\" data-end=\"1277\"\u003eQ6: What is the weight stack capacity?\u003c\/strong\u003e\u003cbr data-start=\"1277\" data-end=\"1280\"\u003eA: It comes with a 215 lb standard weight stack, with optional upgrades depending on configuration.\u003c\/p\u003e\n\u003ch5\u003e\n\u003cbr\u003eMaintenance Tips\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli data-section-id=\"krdkpi\" data-start=\"71\" data-end=\"196\"\u003e\n\u003cstrong data-start=\"73\" data-end=\"92\"\u003eDaily cleaning:\u003c\/strong\u003e Wipe seat, back pad, ankle roller, and frame to prevent sweat buildup and preserve upholstery finish.\u003c\/li\u003e\n\u003cli data-section-id=\"wqum4\" data-start=\"197\" data-end=\"395\"\u003e\n\u003cstrong data-start=\"199\" data-end=\"227\"\u003eCheck adjustment system:\u003c\/strong\u003e Ensure the 8 back pad positions and ROM adjustment pins lock securely and move smoothly for both leg extension and curl setups. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"gza85d\" data-start=\"396\" data-end=\"537\"\u003e\n\u003cstrong data-start=\"398\" data-end=\"421\"\u003eInspect roller pad:\u003c\/strong\u003e Confirm self-aligning ankle roller rotates freely and stays firmly attached for proper knee tracking and comfort.\u003c\/li\u003e\n\u003cli data-section-id=\"1whr46r\" data-start=\"538\" data-end=\"675\"\u003e\n\u003cstrong data-start=\"540\" data-end=\"567\"\u003eLubricate pivot points:\u003c\/strong\u003e Apply light silicone\/PTFE lubricant to the main pivot arm and adjustment joints for smooth, quiet motion.\u003c\/li\u003e\n\u003cli data-section-id=\"fhhcem\" data-start=\"676\" data-end=\"853\"\u003e\n\u003cstrong data-start=\"678\" data-end=\"699\"\u003eTighten hardware:\u003c\/strong\u003e Regularly inspect bolts and frame connections to maintain stability under heavy commercial use (~557 lb machine). \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"i9uavo\" data-start=\"854\" data-end=\"987\"\u003e\n\u003cstrong data-start=\"856\" data-end=\"878\"\u003eCable\/stack check:\u003c\/strong\u003e Ensure weight stack moves evenly with no sticking, noise, or misalignment; verify selector pin engagement.\u003c\/li\u003e\n\u003cli data-section-id=\"q3rsk4\" data-start=\"988\" data-end=\"1110\"\u003e\n\u003cstrong data-start=\"990\" data-end=\"1014\"\u003ePad condition check:\u003c\/strong\u003e Replace worn thigh stabilizer and ankle pads to maintain proper biomechanics and user safety.\u003c\/li\u003e\n\u003cli data-section-id=\"1sgtdsb\" data-start=\"1111\" data-end=\"1267\"\u003e\n\u003cstrong data-start=\"1113\" data-end=\"1133\"\u003eFloor stability:\u003c\/strong\u003e Confirm unit is properly bolted down as recommended to prevent tipping during heavy leg work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Hoist","offers":[{"title":"Standard (HD) \/ White","offer_id":45597987143871,"sku":"HD-3400 White","price":2970.99,"currency_code":"USD","in_stock":true},{"title":"Heavy Stack (HDG) \/ White","offer_id":45597987176639,"sku":"HDG-3400 white","price":3217.99,"currency_code":"USD","in_stock":true},{"title":"Standard (HD) \/ Platinum","offer_id":45597987209407,"sku":"HD-3400 Platinum","price":2970.99,"currency_code":"USD","in_stock":true},{"title":"Standard (HD) \/ Black","offer_id":45597987242175,"sku":"HD-3400 Black","price":2970.99,"currency_code":"USD","in_stock":true},{"title":"Heavy Stack (HDG) \/ Platinum","offer_id":45597987274943,"sku":"HD-3400 Platinum","price":3217.99,"currency_code":"USD","in_stock":true},{"title":"Heavy Stack (HDG) \/ Black","offer_id":45597987307711,"sku":"HD-3400 Black","price":3217.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0683\/5703\/0079\/files\/HD-3400_Leg_Extension_Leg_Curl__BLACK__CROPPED_30233a00-3491-4b65-896a-09691fb5cd5b.webp?v=1777372591","url":"https:\/\/www.mybackyardzone.com\/products\/hoist-leg-curl-leg-extension-1","provider":"Your Outdoor Setup Starts Here","version":"1.0","type":"link"}