Abdominal crunch exercise machine
AssigneeTrue Fitness Technology, Inc.
InventorJared Kueker
Life of this patent
Estimating the term…
Abstract
An exercise machine, components of the exercise machine, and methods related to using the exercise machine that allow for a performance of an abdominal exercise which provides for a more natural rolling motion for a back of a user while providing variable resistance. Specifically, at least one of a seat or a backrest of the exercise machine, and preferably both, is not rotationally attached directly to a frame of the exercise machine, but is instead rotationally attached to a secondary arm of the exercise machine which is then rotationally attached to the frame.
Claims20
An exercise machine comprising:
- a frame;
- a lower support connected to said frame at two first spaced axes of rotation via a first linkage assembly;
- an upper support connected to said frame at two second spaced axes of rotation via a second linkage assembly;
- a translation bar connecting said first linkage assembly to said second linkage assembly so that movement of said lower support relative to said frame causes movement of said upper support relative to said frame and movement of said upper support relative to said frame causes movement of said lower support relative to said frame;
- and
- a resistance mechanism resisting movement of at least one of said lower support or said upper support relative to said frame.
A method of performing an abdominal crunch exercise, the method comprising:
- providing an exercise machine comprising:
- a frame;
- a lower support including a seat and foot pads, said lower support connected to said frame at two first spaced axes of rotation via a first linkage assembly;
- an upper support including a back rest and hand grips, said upper support connected to said frame at two second spaced axes of rotation via a second linkage assembly;
- a translation bar connecting said first linkage assembly to said second linkage assembly;
- and
- a resistance mechanism resisting movement of at least one of said lower support or said upper support relative to said frame;
- sitting on said seat against said back rest;
- placing a portion of a lower extremity in contact with said foot pads;
- grasping said hand grips;
- and
- using abdominal muscles to move at least one of said foot pads or said hand grips against resistance provided by said resistance mechanism where movement of said lower support relative to said frame causes movement of said upper support relative to said frame and movement of said upper support relative to said frame causes movement of said lower support relative to said frame.
Dependencies are inferred from the claim text.