초록 ▼

An exercise device for specific isolation and development of abdominal muscle groups comprises a deformable spring-resistance which is closely retained against the user\s abdominal region and provision for tensioning the spring device with a dual-handle pulley system and an adjustable means for accu

An exercise device for specific isolation and development of abdominal muscle groups comprises a deformable spring-resistance which is closely retained against the user\s abdominal region and provision for tensioning the spring device with a dual-handle pulley system and an adjustable means for accurately controlling the spring tension and the resistance force that is pressed against the abdomen. When the device is in place and tensioned the user resists the tension by expanding the abdomen to exercise and thus develop the abdominal musculature.

대표청구항 ▼

An portable exercise device comprising: an elongate and generally arcuate shaped bar; the width of said bar at its center being shaped and dimensioned to fit and press against a user\s abdomen; the length of said bar being approximately the shoulder width of the user; handgrip means attached near bo

An portable exercise device comprising: an elongate and generally arcuate shaped bar; the width of said bar at its center being shaped and dimensioned to fit and press against a user\s abdomen; the length of said bar being approximately the shoulder width of the user; handgrip means attached near both ends of the bar in such position as to enable the user to press the convex side of the arcuate bar against his abdomen; a tensioning means spanning the concave side of the arcuate bar and horizontally disposed across the center point of the bar; and said tensioning means being attached to the bar on both sides of the enter point to restrain flexion of the bar.