Wheeled exercise device

1. A wheeled exercise device configured to be rolled on a ground surface by a user for exercise, comprising:

a single wheel having a generally wide width profile for rolling along the ground surface for exercise, the wheel having an interior cavity bounded by wheel side surfaces with central openings in each wheel side surface,

an elongate central axle provided within the interior cavity of the wheel between the two openings in the wheel side surfaces and extending along a central horizontal axis through the wheel that is parallel to the ground surface,

a pair of elongate handles coupled to the central axle, each handle having a proximal end and distal end, one handle on either wheel side surface thereof attached at its proximal end to the central axle at a corresponding central opening, each elongate handle oriented at an angle to the horizontal central axis through the wheel so that the handle extends outward from its wheel side surface and downward relative to the central horizontal axis of the wheel toward the ground surface, each elongate handle further including an upper elongate surface and a lower elongate surface between its proximal and distal ends, the upper and lower surfaces each oriented at an angle to the horizontal central axis through the wheel so that a substantial length portion of each of the upper and lower surfaces extends away from its wheel side surface and downward toward the ground surface, below the central horizontal axis while a user is performing a rolling exercise on said ground surface, each handle includes a distinct ergonomically formed hump located on an upper surface thereof at a distance closer to where the handle meets the central axle than said distal end of the handle, the ergonomic hump adapted for separating the user's thumb from the other fingers of the user's hand on the handle, and

a coiled spring element arranged so as to encircle the central axle within the wheel interior cavity, the spring element imparting resistance to rotation of the wheel as the exercise device is rolled by said user placing their hands on the handles and rolling the wheel along the ground surface in a forward direction relative to a starting position of the user for exercise with the wheel, the spring element providing a restoring or assistive force to aid the user as the user rolls the wheel back along the ground surface to the user's starting position.

2. The device of claim 1 , wherein the coiled spring element is attached between an inner surface of the wheel and the central axle within the interior cavity.

3. The device of claim 1 , wherein

one end of the coiled spring element is attached to a hub formed along the inner surface of the wheel within the interior cavity, the hub in turn attached to the central axle, and

the other end of the spring element is attached to the inner surface of the wheel.

4. The device of claim 1 , wherein the wheel includes a tire overmold with threads therein attached to an outer surface thereof.

5. The device of claim 1 , wherein the distal end of each handle includes a ridge.

6. A wheeled exercise device configured to be rolled on a ground surface by a user for exercise, comprising:

a single wheel for rolling along the ground surface and including an interior cavity bounded by wheel side surfaces with central openings in each wheel side surface,

an elongate central axle extending along a central horizontal axis through the wheel interior cavity between the two central openings in the wheel side surfaces,

a pair of elongate handles coupled to the central axle, each handle having a proximal end and distal end, one handle on either wheel side surface thereof attached at its proximal end to the central axle at a corresponding central opening so as to be oriented substantially transverse to the wheel side surface, each elongate handle further including an upper elongate surface and a lower elongate surface between its proximal and distal ends, the upper and lower surfaces each oriented at an angle to the horizontal central axis through the wheel so that a substantial length portion of each of the upper and lower surfaces extends away from its wheel side surface and downward toward the ground surface, below the central horizontal axis while a user is performing a rolling exercise on said ground surface, each handle includes a distinct ergonomically formed hump located on an upper surface thereof at a distance closer to where the handle meets the central axle than said distal end of the handle, the ergonomic hump adapted for separating the user's thumb from the other fingers of the user's hand on the handle.

7. The device of claim 6 , wherein the wheel includes a tire overmold with threads therein attached to an outer surface thereof.

8. The device of claim 6 , wherein the distal end of each handle terminates in a ridge.

9. The device of claim 6 , wherein the wheel has a generally wide width profile for rolling along the ground surface for exercise, the wheel configured to be carved back and forth along the ground surface so that the wheel travels in a forward/backward to left direction and a forward/backward to right direction, in addition to being rolled directly forward from and backward to the user.

10. The device of claim 6 , further comprising:

a spring element provided within the interior cavity of the wheel and connected between the wheel and central axle, the spring element imparting resistance to rotation of the wheel as it is rolled by a user for exercise along the ground surface in a forward direction relative to a starting position of the user, the spring element providing a restoring or assistive force to aid the user as the user rolls the wheel back along the ground surface to the user's starting position.