Exercise device for exercising of the abdominal muscles
First Claim
1. An exercise device comprising:
- a seat on which, in use of the device in exercising of the abdominal muscles of a user, a user is seated;
a bowed back support member disposed adjacent to the seat and presenting a convex curved surface against which the back and head of the user rest in a backwardly reclining posture in one stage of said use;
a belt adapted to fit around the waist of the user during said use; and
restraining means mounted on the device and adapted to engage a part of the body of the user during movement of the user from said backwardly reclining posture wherein the back of the user rests against said convex curved surface to a sitting position, so as to increase the force that must be exerted by the abdominal muscles of the user in carrying out said movement.
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Abstract
An exercise device for exercising of the abdominal muscles as well as in exercising the muscles of the upper torso, shoulders and arms while the back of the user is supported, elongated and stretched. The device includes a platform which is elevated at one end from a supporting surface for the device. A seat is located at the one end of the platform and a bowed back support member is disposed on the platform adjacent to the seat. The support member presents a convex curved surface of a longitudinal extent such that the back and head of the user can rest thereon with the user in a backwardly reclining posture. A belt fits around the waist of the user while a resilient or stretchable cord is adapted to engage the arms of the user during movement of the user from the backwardly reclining posture wherein the back of the user rests against the convex curved surface to a sitting position. The cord thus increases the force that must be exerted by the abdominal muscles of the user in carrying out this movement.
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Citations
20 Claims
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1. An exercise device comprising:
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a seat on which, in use of the device in exercising of the abdominal muscles of a user, a user is seated;
a bowed back support member disposed adjacent to the seat and presenting a convex curved surface against which the back and head of the user rest in a backwardly reclining posture in one stage of said use;
a belt adapted to fit around the waist of the user during said use; and
restraining means mounted on the device and adapted to engage a part of the body of the user during movement of the user from said backwardly reclining posture wherein the back of the user rests against said convex curved surface to a sitting position, so as to increase the force that must be exerted by the abdominal muscles of the user in carrying out said movement. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. An exercise device comprising:
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a platform member including a first end which, in use of the device in exercising of the abdominal muscles of a user, is elevated from a supporting surface for the device;
a seat at said first end of said platform member on which, in said use, a user is seated;
a bowed back support member disposed on said platform member adjacent to the seat and presenting a convex curved surface of a longitudinal extent such that the back and head of the user can rest thereon with the user in a backwardly reclining posture;
a belt adapted to fit around the waist of the user during said use; and
restraining means mounted on the device adapted to engage a part of the body of the user during movement of the user from said backwardly reclining posture wherein the back of the user rests against said convex curved surface to a sitting position, so as to increase the force that must be exerted by the abdominal muscles of the user in carrying out said movement. - View Dependent Claims (16, 17, 18, 19)
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20. An exercise device for use in exercising of the abdominal muscles of a user, said device comprising:
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a platform member including a first end which, in use, is elevated from a supporting surface for the device so that the platform member forms an acute angle with the supporting surface;
a seat at said first end;
a bowed back support member of substantially semicircular shape disposed on said platform adjacent to the seat and presenting a convex curved surface;
a belt affixed to one of said platform member and said back support member and being adapted to fit around the waist of the user; and
a resilient cord affixed at opposite ends thereof to said back support member and disposed under said back support member between said back support member and said platform member.
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Specification