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The approach (or run-up) in the Fosbury flop is characterized by (at least) the final four or five steps being run in a curve, allowing the athlete to lean in to the turn, away from the bar. This allows the center of gravity to be lowered even before knee flexion, giving a longer time period for the take-off thrust. Additionally, on take-off ...
A HANS device (head and neck support device) is a type of head restraint and a safety device in motorsports. Head restraints are mandatory when competing with most major motorsports sanctioning bodies. They reduce the likelihood of head or neck injuries, including the often fatal basilar skull fracture, in the event of a crash. There are many ...
Major variants: reverse ~ (curling the pelvis towards the shoulders), twisting ~ or side ~ (lifting one shoulder at a time; emphasis is on the obliques), cable ~ (pulling down on a cable machine while kneeling), sit-up ~ (have [chest] touch your knees), vertical crunch (propping up to dangle legs and pulling knees to the [ chest] or keeping ...
After the Battle of Kasserine Pass (early 1943), U.S. troops increasingly adopted the modern foxhole, a vertical, bottle-shaped hole that allowed a soldier to stand and fight with head and shoulders exposed. [4] [6] The foxhole widened near the bottom to allow a soldier to crouch down while under intense artillery fire or tank attack. [4]
A pull-up is an upper-body strength exercise. The pull-up is a closed-chain movement where the body is suspended by the hands, gripping a bar or other implement at a distance typically wider than shoulder-width, and pulled up. As this happens, the elbows flex and the shoulders adduct and extend to bring the elbows to the torso.
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School children perform sit-ups, a common type of calisthenic, during a school fitness day.. Calisthenics (American English) or callisthenics (British English) (/ ˌ k æ l ɪ s ˈ θ ɛ n ɪ k s /) is a form of strength training that utilizes an individual's body weight as resistance to perform multi-joint, compound movements with little or no equipment.
The high jump is a track and field event in which competitors must jump unaided over a horizontal bar placed at measured heights without dislodging it. In its modern, most-practiced format, a bar is placed between two standards with a crash mat for landing.