Inflatable aquatic exerciser

An inflatable limb encircling aquatic exerciser jacket for exercising a limb in water, said aquatic jacket comprising two sheets of flexible plastic sheet material which are sealed together along their outer edges into a closed compartment, seams formed between said two sheets to subdivide said compartment into a manifold and a plurality of parallel channels which are in communication with each other and said manifold, a valved opening in one of said sheets for inflating said manifold and channels with air, said aquatic jacket when positioned on a human limb having said seams extending lengthwise thereof, fastening means on opposite sides of said aquatic jacket for retaining the same on said limb in a loose surrounding relationship, said aquatic jacket when on said limb surrounding the outer extremity thereof and progressing therefrom up said limb past the first joint thereof to just below the second joint thereof, and a narrow cross member at the lower end of said aquatic jacket, said cross member being spaced at its front edge and rear edge from the material of said jacket to permit engagement of said cross member by a hand for gripping thereof or by the central area of the underside of the wearer's foot.