Abstract: Various implementations of the systems and methods disclosed herein allow a user to build at least a portion of the musculature used for the front crawl stroke and/or offer a platform for practicing and learning proper form for certain exercises, such as, for example, swimming the front crawl stroke. In addition, the devices, systems, and methods disclosed herein may be useful for strengthening overall body tone and aerobic strength. Various implementations include an exercise system that includes an arm movement system and/or a torso movement system. The arm movement system may be provided and/or used independently of the torso movement system. Various implementations of the devices, systems and methods disclosed herein simulate the resistive forces of water encountered by a human body while swimming and allow the user to learn and maintain proper form while strengthening muscles used to counter-act those resistive forces, without the complications of a water environment.

Abstract: Various implementations of the systems and methods disclosed herein allow a user to build at least a portion of the musculature used for the front crawl stroke and/or offer a platform for practicing and learning proper form for certain exercises, such as, for example, swimming the front crawl stroke. In addition, the devices, systems, and methods disclosed herein may be useful for strengthening overall body tone and aerobic strength. Various implementations include an exercise system that includes an arm movement system and/or a torso movement system. The arm movement system may be provided and/or used independently of the torso movement system. Various implementations of the devices, systems and methods disclosed herein simulate the resistive forces of water encountered by a human body while swimming and allow the user to learn and maintain proper form while strengthening muscles used to counter-act those resistive forces, without the complications of a water environment.

Abstract: A signaling transfer point (STP) includes a communications controller, node maintenance unit, and a plurality of link-interface units, and designates to the individual link-interface units primary responsibility for management of resources coupled to the STP. When one of the resources experiences a problem, a prime link-interface unit for that resource assumes management of the resource and controls communication by the STP with the resource. If a prime link-interface unit fails, either the node maintenance unit or look-up tables within the other link-interface units designate which other link-interface unit will become prime for the resource covered by the failed link-interface unit.