Abstract: A system for strength and conditioning training includes an exercise rack and a load regulation assembly mounted on the rack, the load regulation assembly moveable relative to the rack, wherein the load regulation assembly is configured to receive and support a weight, and the load regulation assembly is configured to adjust the magnitude and/or direction of an applied load.

Abstract: A muscle activation detection apparatus includes a first surface electromyogram (sEMG) sensor arranged to receive a first sEMG signal associated with a user; a second SEMG sensor arranged to receive a second sEMG signal associated with the user; and a processing unit configured to determine the muscle contraction of the user based on the first and second sEMG signals.

Abstract: A multi-layer antenna arrangement is provided that includes a first layer having a conductive radiating element configured to have multiple overlapping resonant modes that define a first frequency range. The multi-layer antenna arrangement also includes a second layer having at least a portion of a ground plane for the conductive radiating element. The multi-layer antenna arrangement additionally includes a third layer, between the first layer and the second layer, that has a conductive resonator configured to provide a stop band within the first frequency range.

Abstract: A multi-layer antenna arrangement is provided that includes a first layer having a conductive radiating element configured to have multiple overlapping resonant modes that define a first frequency range. The multi-layer antenna arrangement also includes a second layer having at least a portion of a ground plane for the conductive radiating element. The multi-layer antenna arrangement additionally includes a third layer, between the first layer and the second layer, that has a conductive resonator configured to provide a stop band within the first frequency range.