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A weightlifter holding an Olympic barbell loaded with plates ranging from 5 to 25 kilograms A pair of adjustable dumbbells with "standard" plates Grip plates arranged on a plate holder (or "plate tree") A weight plate is a flat, heavy object, usually made of cast iron, [1] that is used in combination with barbells or dumbbells to produce a bar ...
Another factor that distinguished BUR Barbell plates from those of other manufacturers was the use of a unique numbering system. From the late 1930s until the early 1960s, every BUR weight plate had a separate number - besides poundage - stamped into it.
"Standard" or more commonly "One Inch" or "1 inch" barbells are characterised by a bar that is very approximately one inch (25.4mm) in diameter along the whole of its length, with a commensurate sized centre hole in the weight plate. Despite the "Standard" name they come in a wide range of sizes that can have little in common with one another ...
An Olympic lifter, Jang Mi-ran, holding a barbell loaded with red 25 kg bumper plates, held in place with a collar. Note the lifter's taped wrists and thumbs, her weightlifting shoes, and her weightlifting belt. Weight plates are secured to the bar using collars on each side that weigh exactly 2.5 kg each.
A weight training bench is a piece of exercise equipment used for weight training. Weight training benches may be of various designs: fixed horizontal, fixed inclined, fixed in a folded position, with one adjustable portion, with two or more adjustable portions, with racks to hold bars, etc.
Thus 50 kg (~491 N) of plates will apply to the user only an equaling weight of 18 kg or a force of ~174 N at the beginning of the motion. On the other end of the spectrum may be a bent-over-row machine that is designed with the user's grip between the plates and the fulcrum.
The bench press or chest press is a weight training exercise where a person presses a weight upwards while lying horizontally on a weight training bench. The bench press is a compound movement , with the primary muscles involved being the pectoralis major , the anterior deltoids , and the triceps brachii .
The power rack serves several purposes. Best among them is safety: for instance, in the bench press, placing the bar catches, also known as spotter arms, right above the lifter's chest will prevent the barbell from crushing the athlete in the case of muscular fatigue or other loss of control of the bar. In the case of squats, catches placed ...
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