Aim: The current study investigated the effects of low-speed resistance training (LSRT) and high-speed resistance training (HSRT) on frailty status, physical performance, cognitive function and blood pressure in pre-frail and frail older terial and Methods: Sixty older adults, 32 prefrail and 28 frail, were randomly allocated into LSRT, HSRT, and control group (CG).Roller: Roll adopts theposite structure, speed tolerance and forming resistance is small, abrasion on the surface of a steel plate. High quality bearing steel, after quenching, precision CNC lathe machining, surface hard chromium plating, polishing mirror, high hardness, good abrasion resistance, long service life.Automobiles use high-strength steel, which can reduce the thickness of the plate due to its higher strength, making the automobile structure lighter. At the same time, the car’s dent resistance, durability and large deformation impact strength are improved, and the cost is lower than that of light metals. The advantages of high-strength steel make it rapidly developed and widely used …Forming was made using the fall hammer own design, made in workshops at our department. In this paper the results of three selected steel forming resistance evaluation are published. Steel 1 is unalloyed constructional fine-grained low carbon steel, steel 2 is chrome-molybdenum steel and steel 3 is high speed steel.