[0008] Another object of the present invention is to provide an
exercise machine and method of its use, which includes separately actuable upper and lower pulleys, pedals, movable frames or arm members, or the like (hereinafter generally referred to as exercising assemblies) which when simultaneously engaged by the user's legs and arms in exercising movement, concurrently exercise the user's upper and lower body muscles, and more preferably, his or her core
abdominal muscles, to provide the user with more efficient full body exercise, enabling a fuller body toning workout within a comparably limited time.
[0013] The resistance mechanism used to provide the desired degree of resistance to the upper and lower exercising assemblies are most preferably operable independently from each other, and enable the user to select the degree of resistance to each of the upper and lower body exercising assemblies separately. With this construction, the desired degree of resistance for leg exercises may be pre-selected by the user, independently from the resistance to be used for toning upper body exercise. This furthermore advantageously allows the user to operate the upper and lower body exercising assemblies both simultaneously to effect the concurrent resistance exercise of his or her arm and
leg muscle groups or alternately sequentially or independently to provide a more varied workout.
[0014] Suitable resistance mechanisms to be used with the present invention include arrays of one or more resiliently bendable rods, resiliently deformable elastomeric bands, weight stacks, or other such suitable devices, and which would be suitable to permit either the alternating sequential and / or simultaneous exercising of upper and lower body muscle groups, including without restriction, the user's leg, back, abdominal and / or arm muscles. In a simplified construction, the apparatus incorporates a weight stack assembly as a resistance mechanism which includes a number of vertically displaceable
metal plates. The weight stack assembly is coupled to both the lower body exercising assembly and the upper body exercising assembly, such that different groupings of weight plates may be pre-selected by the user for upper and lower body exercise. Following the selection of the desired amount of resistance, the upper and lower frame assemblies are concurrently or sequentially actuated, to raise and lower the selected plates as the user performs arm and leg exercises. In one possible embodiment, the weight stack assembly may include at least two independently operable weight stacks which operate by way of lift rods, and which are each independently coupled by a respective cable /
pulley assembly to the upper body exercising assembly and the lower body exercising assembly, provide the user-selected desired degree of resistance. This construction advantageously enables the user to quickly and easily lift different combinations of weight plates in the simultaneous exercising of different muscle groups, without requiring the repositioning of weight stack release pins interrupting the flow of repetitions during a set or between sets.
[0016] The applicant has appreciated that concurrent resistance exercise of both upper arm and lower
leg muscle groups advantageously also effects toning exercise of the user's bridging abdominal muscles. Abdominal muscle exercises are furthermore enhanced and optimized when the lower body leg muscles are exercised by effecting leg extensions or leg presses, with the user's legs moved together in unified movement.
[0017] The applicant has appreciated that the invention is operable to provide toning exercise, as contrasted with isolation weight training exercise which is used primarily to increase muscular bulk. In this regard, the individual weight stacks used to provide resistance may be made comparatively lighter than those found on conventional exercise machines adapted to achieve isolated
muscle exercise. Most preferably, the weight stack assembly is configured to provide a greater weight resistance to the lower body exercising assembly which is actuable by the user's legs, than compared with the weight resistance provided to the upper body exercising assembly used to provide
arm exercise. In a preferred embodiment, the individual weight stack used to provide resistance to a lower frame assembly may be selected to provide a range of resistance forces of less than about 300 lbs, preferably less than about 250 lbs, and more preferably less than about 200 lbs. Similarly, the weight stack used to provide resistance to the upper body exercising assembly for upper body exercise, may be made comparatively smaller and provide a preferred maximum
resistance force of less than about 250 lbs, and more preferably about less than a maximum of 150 lbs. The comparatively smaller weight stacks of the present invention furthermore advantageously enable the exercise apparatus to be made lighter as a stand-alone
machine and smaller than conventional isolation exercising equipment, thereby providing the apparatus with an overall smaller
footprint, and minimizing the square footage operational cost to health club purchasers.
[0019] Most preferably, simultaneously with the movement of the lower body exercising frame, the upper body exercising apparatus is actuated. The upper
body frame member or pulleys are reciprocally moved by the user's arms and / or hands against the resistance forces of the second weight stack between a first
rest position and a second biased position spaced therefrom. As the respective lower frame and upper body frames are used simultaneously to exercise the user's arms and legs, the simultaneous operation of the upper and lower frames enables the user to undertake a more full body toning workout. The concurrent activation of the upper and lower
body frame members achieves exercise of not only the user's arm and leg muscles in isolation, but also the user's bridging abdominal and
back muscles. As such, the present invention advantageously may be used with lower weight levels than compared to conventional
strength training equipment, reducing the risk of injury and permitting a greater number of repetitions that provide muscle toning, without rapidly adding muscular bulk.