Rogers Athletic Company, Inc.

The Coach and Company Incorporated

James Michael Gittleson

Kenneth Edward Staten

Tyler James Hobson

Alan Salyer

An example exercise device includes an arm structure configured to pivot in response to a movement of at least a portion of a head of a user. An example method of exercising includes moving a portion of a head to pivot a weight arm that resists the moving.

Exercise device

An exercise machine for performing supination and pronation exercises comprises a framework, a weight stack carriage that is supported on said frame work for vertical motion, and an input mechanism that is operably coupled by a cable and a system of sheaves on the framework to the weight stack carriage. The input mechanism comprises a horizontal shaft that has operating handles at opposite ends for rotating the shaft. A bi-cam is disposed on the shaft, and one end of the cable is tethered to a high point of the bi-cam. The bi-cam has respective cam profiles in its respective halves; one profile interacts with the cable when the shaft is rotated in one sense from a starting position, and the other profile interacts with the cable when the shaft is rotated in the opposite sense from the starting position. The cams have decreasing profiles so that the torque load imposed on the user progressively decreases as the shaft is rotated from the starting point, thereby enabling the machine to closely match the user's strength profile for performing supinations and pronations.

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Ann Arbor, MI, United States of America

James Michael Gittleson