Are you looking for a new or used Back Extension Machine? Commercial Back Extension ROCKBOYE-1022 is the best rated abdominal exercise equipment. All our designs are according to human exercise physiology principle designed for complete accord with human body muscle. As we all know, quality is the best point for a gym. We use our honesty to get a high reputation and long terms customers.
The Back Extension Machine, like the rest of Ntaifitness line up, is full commercial-quality. Backed by an extensive warranty, the Seated Back Extension ROCKBOYE-1021 is an ideal option for outfitting any weight room, recreation center, apartment complex or professional gym.
The seated back extension machine is a machine that consists of a seat for your butt and a stack of weights which you can load to help you strengthen your lower back. Similar to the hyperextension bench exercise, the seated back extension machine targets the erector spinae muscle groups (iliocostalis, spinalis & longissimus). The back extension machine targets the erector spinae, which are three muscles: illiocostalis lumborum, longissimus thoracis, and the spinalis. This bundle of muscles lies in a groove along the vertebral column.
These muscles extend your lumbar spine. Synergistic muscles used in the back extension are the gluteus maximus, hamstrings, and adductor magnus. Stabilizer muscles used include the back, shoulder and neck muscles: biceps, triceps, lats, deltoids, traps, pecs, and rhomboids.
Being able to isolate the lower back in this way is great as you can really concentrate on the key groups of muscles that help you at the lower end of the spine. My own personal experience from using this machine is that I walk away feeling a lot more stable and stronger in the lower back regions as a result.
|Overall "static" dimensions (L x W x H)||182 x 173 x 135 cm / 71.6" x 68" x 53"|
|Overall "in-use" dimensions (L x W x H)||182 x 173 x 135 cm / 71.6" x 68" x 53"|
|Machine Weight||145 x 120 x 135 cm / 57.2" x 47.3" x 53"|
|Shipping weight||319 kg / 704 lbs|
|Total stack weight||108 kg / 240 lbs|
|Max Training Weight||111.4 kg / 247.5 lbs|
|Incremental weight system||1.1, 2.3, 3.4 kg / 2.5, 5, 7.5 lbs|
|Consistent 53” stack height||Yes|
|Weight stack guarding||Full front and rear shields|
|Color coded pivots & points of adjustment||Yes|
|Integrated leveling system||Yes, top-down leveler|
|Machine anchoring||Independent machine hold down brackets|
|Front placards||Muscle call outs, exercise specific stretching, start & finish exercise illustrations, proper machine adjustments, color-coded machine identification|
|Personal storage||Two tactile storage mats, personal device cradle and towel hook|
|User adjustment range||5 Back pad start positions|
|Machine assisted user adjustments||Yes|
|Cable transmission||Internally lubricated cables & fittings|
|Frame finish||Proprietary two-coat powder process|
|Available frame colors||Iced Silver, Matte Black, Gloss Black, Lace White, Polarized Titanium|
Important: The Back Extension Machine is a built-to-order product and may require a 3-6 week lead time. The Back Extension shown above uses a custom color configuration. Manufactured in China.
*This product is designed solely for use in commercial fitness settings.*