Try contracting just your bicep with an open hand. Then contract your bicep plus your forearm with a closed fist.
You will notice a much stronger contraction in your bicep when your entire arm is contracted.
This is called muscle irradiation.
- Combining Fit Grips 2.0 and the Arm Blaster will transform your grip and arms! By increasing the diameter of the bar, you will feel a greater muscle activation in your hands and arms. This increased muscle activation leads to bigger, faster gains in muscle size and functional strength (especially in overall arm size). We guarantee you’ll feel the difference from the very first time you use them.
- The Premium Arm Blaster perfectly supports your elbows and enables you to keep the correct posture during curls. Users immediately notice proper bicep isolation when curling with it. Max weight supported 135 lbs.
- Fit Grips have a 2 inch outside diameter and are 4 5/8 inches long. Inside diameter is 1 inch. They are made of high density silicone which allows years of maintenance free use.
- Stomach pad for comfort and adjustable belt made of heavy duty webbed nylon. The neck pad is made of neoprene.
- By Yaegoo – Fitness Equipment Leader