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An exercise device (20) having a hand graspable movable part (24) mounted to a mounting part (25) for movement with respect to the mounting part. The mounting part (25) is affixable to a hand movable object (12) so that the hand movable object may be moved by a user by hand grasping the movable part

An exercise device (20) having a hand graspable movable part (24) mounted to a mounting part (25) for movement with respect to the mounting part. The mounting part (25) is affixable to a hand movable object (12) so that the hand movable object may be moved by a user by hand grasping the movable part (24) while also executing reciprocatory movement of the movable part.

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1. An exercise device comprising: a mounting part comprising circular passages; anda hand graspable movable part mounted to the mounting part for movement with respect to the mounting part along rotational path defined by said circular passages, the mounting part being affixable to a hand movable ob

1. An exercise device comprising: a mounting part comprising circular passages; anda hand graspable movable part mounted to the mounting part for movement with respect to the mounting part along rotational path defined by said circular passages, the mounting part being affixable to a hand movable object so that the hand movable object may be moved by a user by hand grasping the hand graspable movable part while also executing reciprocatory movement of the hand graspable movable part,wherein helical compression springs are provided within said circular passages to bias the hand graspable movable part to an intermediate rest position and are positioned to be axially compressed to resiliently oppose rotational movement of the hand graspable movable part, under movement of the hand graspable movable part with respect to the mounting part, in either rotational direction away from the intermediate rest position, andwherein the hand graspable movable part is retained within said circular passages during said rotational movement and rotation of the hand graspable movable part is limited in opposite directions by engagement of respective ends of the hand graspable movable part with the mounting part. 2. The device of claim 1 further comprising a handlebar, wherein the mounting part is in the form of an annular body split to enable the annular body to be deformed to open for the handlebar to pass transversely into the annular body so that the handlebar is accommodated within the annular body, parts of the body configured to be drawn together by a fastener to clamp the body around the handlebar. 3. The device of claim 1 wherein the hand graspable movable part has an arm part for gripping by a user. 4. A hand movable object having attached thereto a device as claimed in claim 1. 5. A hand movable object as claimed in claim 4 in the form of a wheeled object. 6. A hand movable object as claimed in claim 5 wherein the wheeled object is a pram, a stroller or a shopping trolley. 7. A hand movable object comprising: a hand graspable movable part movable with respect to the hand movable object so that the hand movable object may be moved by a user by hand grasping the hand graspable movable part while also executing reciprocatory movement of the hand graspable movable part;a mounting part in the form of an annular body comprising circular passages configured to define a rotational path for movement of the hand graspable movable part with respect to the mounting part; anda fastener for drawing parts of the body together to secure the annular body around the hand movable object,wherein helical compression springs are provided within the circular passages to bias the hand graspable movable part to an intermediate rest position and are positioned to be axially compressed to resiliently oppose rotational movement of the hand graspable movable part, under movement of the hand graspable movable part with respect to the mounting part, in either rotational direction away from the intermediate rest position, andwherein a circular part of the hand graspable movable part is retained within said circular passages during said rotational movement and rotation of the hand graspable movable part is limited in opposite directions by engagement of respective ends of the hand graspable movable part with the mounting part. 8. The device of claim 1 further comprising a sensor for sensing user pulse rate, blood pressure or energy expenditure. 9. A hand movable object as claimed in claim 7 in the form of a wheeled object. 10. A hand movable object as claimed in claim 9 wherein the wheeled object is a pram, a stroller or a shopping trolley. 11. The device of claim 7 wherein the hand graspable movable part has an arm part for gripping by a user. 12. The device of claim 7 further comprising a sensor for sensing user pulse rate, blood pressure or energy expenditure; and a display screen,wherein the sensor wirelessly communicates with the display screen, and data from the sensor is visually displayed on the display screen. 13. An exercise device comprising: a mounting part comprising circular passages;a hand graspable movable part mounted to the mounting part for movement with respect to the mounting part along a rotational path defined by said circular passages, the mounting part being affixable to a hand movable object so that the hand movable object may be moved by a user by hand grasping the hand graspable movable part while also executing reciprocatory movement of the hand graspable movable part; anda handlebar,wherein helical compression springs are provided within said circular passages to bias the hand graspable movable part to an intermediate position and are positioned to be axially compressed to resiliently oppose rotational movement of the hand graspable movable part, under movement of the hand graspable movable part with respect to the mounting part, in either rotational direction away from the intermediate rest position, andwherein the mounting part is in the form of an annular body split to enable the annular body to open for the handlebar to pass transversely into the annular body so that the handlebar is accommodated within the annular body, parts of the annular body are configured to be drawn together by a fastener to clamp the body around the handlebar, and the hand graspable movable part is engaged with a curved surface of the annular body for rotational movement around an axis defined by the handlebar.