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A dynamic rope is a specially constructed, somewhat elastic rope used primarily in rock climbing, ice climbing, and mountaineering. This elasticity, or stretch, is the property that makes the rope dynamic —in contrast to a static rope that has only slight elongation under load.
A static climbing rope. A static rope is a low-elongation rope that is designed to stretch minimally when placed under load, typically less than 5%. In contrast, a dynamic rope is designed to stretch up to 40%. [1] Static ropes have a wide variety of uses, for instance in fire rescue operations [2] and caving. [3]
Kernmantle construction may be used for both static and dynamic ropes. Static ropes are designed to allow relatively little stretch, which is most useful for applications such as hauling and rappelling. Dynamic rope is used to belay climbers, and is designed
A A-grade Also aid climbing grade. The technical difficulty grading system for aid climbing (both for "original" and an adapted version for "new wave"), which goes: A0, A1, A2, A3, A4, A5 and up to A6 (for "new wave"). See C-grade. Abalakov thread Abalakov thread Also V-thread. A type of anchor used in abseiling especially in winter and in ice climbing. ABD Also assisted braking device. A term ...
Cross-section of 10.7 mm kernmantle dynamic rope. Modern climbing ropes are 50–80 metres (160–260 ft) in length—the longer versions are for multi-pitch climbing—and have a kernmantle construction consisting of a core kern of twisted nylon fibers and an outer sheath mantle of
Dynamic ropes are used in sport climbing. They are sufficiently stretchable to safely absorb a fall. However, they are relatively weak in static loads and therefore should not be used for zip lines and amusement rides. A falling climber quickly develops enormous kinetic energy. This energy is released as soon as the climber stops falling.
Dynamic stretches are done to warm up before a workout and static stretches are done to cool down. Stretching reduces injury risk, relieves sore muscles and increases flexibility.
Rope devices. Devices are available for controlling the movement of a dynamic climbing rope (e.g. such as belay devices and self-locking devices), [76] for moving up a fixed static rope (e.g. such as ascenders), [77] or for moving down a fixed static rope (e.g. such as descenders or abseil devices). [77] Protection devices.