The TuffStuff Bio-Arc Biceps Curl (BA-703) offers an intuitive way to train the biceps, with single or dual arm curls. Designed with head, back and seat pads, the Bio-Arc Biceps Curl assists users in maintaining neutral positions. Intuitive and easy to use, the Bio-Arc Biceps Curl requires few if any adjustments. And it comes equipped with TrakFitness cable handles. The first and only handles to include 3 axis of rotation, which allows users to move through multiple planes of motion. With each repetition, the user’s entire body moves along a linear arc trajectory to optimize muscle recruitment.
TuffStuff is proud to introduce the Bio-Arc strength series, the first resistance machines to incorporate multi-planar movement of each machine’s seat, along a linear arc trajectory. The seat movement allows the user to move along the arc path in conjunction with the machine, helping to maintain more optimal muscle length and improving the force of contraction and training stimulus.
Three years in the making, from concepts and engineering prototypes, to testing and countless refinements. Each Bio-Arc machine was tested by an independent exercise consulting company. Pilot research studies combining joint positioning – using goniometry testing, along with muscle recruitment and activity measurements – through electromyographic (EMG) testing. Each machine was tested to determine the optimal dimensions for final production. Every detail was measured, and design modifications were executed to exact specifications and re-tested. The end result is our patented Bio-Arc Technology that allows full body linear arc trajectory motion during exercise.
|Dimensions||73 × 55 × 58 in|
10 YEARS: Frames, welds, linear shafts and weight plates.
5 YEARS: Pivot bearings, pulleys, bushings, gas-shocks, and guide rods.
3 YEARS: TrakHandles
1 YEAR: Linear bearings and pull-pin components.
6 MONTHS: Upholstery, cables, finish and rubber grips.
ALL OTHER PARTS not mentioned, one year from the date of purchase to the original purchaser.
3" and 4-1/2” 11-gauge 120 wall round tubular steel with a combination of 2×4” 11-gauge 120 wall tubular steel.
All welded construction by inert-gas MIG welding conforming with all Structural Welding Code-Steel Standards and Specifications.
Molded PU foam glued to 1” industrial plywood backing, combined with double-stitched premium upholstery.
Premium Bolta Sport vinyl with PreFixx, formulated to resist bacteria, stains, mildew, oil and UV stabilized pigments. Meets most flammability test requirements. All upholsteries are double-stitched with “hidden” borders. Bolta Sport color swatches are available upon request. Sixteen standard colors. Custom colors are available – please inquire with your sales representative.
Choice of two primary colors: Gloss Charcoal Gray with Matte Black accent or Platinum Sparkle with Matte Black accent. Custom colors available, please inquire with your sales representative.
3/16” USA-Made Certified EXERFLEX PRO® high performance fitness cable.
3/4” solid steel 1045 (tgp) highly polished hard chrome finish.
1/2" push-pull spring loaded solid steel adjustment pins with ultimate load of 9040 lbs. and 46042 sheer strength.
4-1/2", 3-1/2" and 2" fiberglass reinforced nylon pulley.
3/4" black painted solid steel plates with reduced noise and self-aligning low friction sleeves.
IMPORTANT NOTE: The Bio-Arc includes a 295 lbs. weight stack; the weight lifted is the approximate combined user’s weight and weight selected (see Weight Guide label).
CUSTOM STABILIZER FEET: Heavy grade molded rubber base feet insures stability, prevents equipment movement, and may be bolted to the floor.
SELECTOR WEIGHT PINS: Weight pins are solid steel, magnetic with ball-end to ensure a tight connection and secure fit.
FASTENERS: All frame bolts and nuts ard 3/8" and 1/2" zinc plated grade 8. Meets ANSI specifications.
LINEAR SHAFTS: 1" precision Rockwell C60 grade solid shaft.
BEARINGS: 2" High precision linear sealed ball bearing (load rating of 1900 lbs.).
US PATENT NO. 9,533,188 B2; 9,539,462 B2 AND OTHER PATENTS PENDING.