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Shown to the right is a "spinlock" dumbbell, whose ends are threaded to accept large nuts as collars. Alternatively, a dumbbell may have smooth ends with plates being secured by a sprung collar. Plate-loaded (adjustable) dumbbells (a.k.a. loadable dumbbells) Spin-lock; Spring collar clips; Compression ring collar; Ironmaster quick-lock
The Shake Weight has a female and male version, though it was initially released as a product "designed specifically for women". [2] The female version weighs 2.5 pounds (1.13 kg). [3] The male version weighs twice as much at 5 pounds (2.27 kg). [4]
Snugli and Weego were invented by nurse and peacekeeper Ann Moore first in the 1960s. Pertussis Vaccine A pioneering female American doctor, medical researcher and an outspoken voice in the pediatric community, the supercentenarian Leila Alice Denmark (1898–2012) is credited as co-developer of the pertussis (whooping cough) vaccine. [citation ...
Prior to 1977, bodybuilding had been considered strictly a male-oriented sport. Henry McGhee, described as the "primary architect of competitive female bodybuilding", was an employee of the Downtown Canton YMCA, carried a strong belief that women should share the opportunity to display their physiques and the results of their weight training the way men had done for years.
A women's Olympic bar is similar to the men's bar, but is shorter and lighter—2.01 metres (6.6 ft), and 15 kilograms (33 lb)—with a smaller grip section diameter (25 millimetres (0.98 in)). [3] Also in contrast to the men's bar, the women's bar does not sport a center knurl.
Universal Gym Equipment was an American manufacturer of exercise equipment, in particular weight machines.It was founded by Harold Zinkin in 1957. In 1998, it was acquired by Flexible Flyer.
Many scientists have been recognized with the assignment of their names as international units by the International Committee for Weights and Measures or as non-SI units. The International System of Units (abbreviated SI from French: Système international d'unités) is the most widely used system of units of measurement.
Another Greek, the physician Galen, described strength training exercises using the halteres (an early form of dumbbell) in the 2nd century. Ancient Greek sculptures also depict lifting feats. The weights were generally stones, but later gave way to dumbbells. The dumbbell was joined by the barbell in the later half of the 19th century.