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The wrist roller is a device designed for strengthening the forearm muscles together in a rolling-pulling motion. It consists of a bar of varying lengths, with a cord or rope attached, which the user rolls and unrolls. This is resisted by the weight of a mass at the bottom of the cord.
A gyroscopic wrist exerciser. Video showing the use - from starting the rotation with a 'shoestring' over various movements with the holding hand until stopping the rotor with the second hand. The demonstrated speeds are, in part, very high and not recommended for normal exercise due to the resulting high forces.
A screen roller or spline roller is a small hand tool used to press screen mesh into the edges of a window frame that is fluted on the inner edges, or to press in the retainer spline that holds that mesh in place. Often these are combined into a single tool or combined with a spline cutter; versions are currently manufactured from plastic or ...
Rotational wristlock by an Aikido instructor. A rotational wristlock (in budo referred to as kote hineri, and in Aikido referred to as a type of sankyō, 三教, "third teaching") [5] [6] is a very common type of wristlock, and involves forced supination or pronation of the wrist, and is typically applied by grabbing and twisting the hand.
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The carpometacarpal (CMC) joints are five joints in the wrist that articulate the distal row of carpal bones and the proximal bases of the five metacarpal bones.. The CMC joint of the thumb or the first CMC joint, also known as the trapeziometacarpal (TMC) joint, differs significantly from the other four CMC joints and is therefore described separately.
A torture rack in Rothschildschloss castle, Austria. The rack is a torture device consisting of a rectangular, usually wooden frame, slightly raised from the ground, [1] with a roller at one or both ends. The victim's ankles are fastened to one roller and the wrists are chained to the other.
Tasks included removing bolts, deploying the rollers, and installing cables before the solar array was picked up by Hoburg with assistance from Canadarm 2 and installed on the 1A solar array on the S4 Truss. The array was deployed at 16:32 hours, and is receiving power. [115] [116] 465 15 June 12:42 5 hours, 35 minutes 18:17 Expedition 69 ISS Quest