Certain exemplary embodiments can provide a system comprising a treadmill. The treadmill comprises a track and a weight stack. The weight stack is coupled to a harness coupleable to a user, the harness constructed to simulate pulling a weighted sled when coupled to the user as the user utilizes the treadmill. The weight stack is coupled to a handle graspable by the user, the harness constructed to simulate pushing a weighted sled when the user grasps the handle as the user utilizes the treadmill.