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Weight machines use gravity as the primary source of resistance, and a combination of simple machines to convey that resistance, to the person using the machine. Each of the simple machines (pulley, lever, wheel, incline) changes the mechanical advantage of the overall machine relative to the weight.
Typical consumer-level weight bench with leg exercise attachment Two weight training benches in a fitness center in Nürnberg, Germany Hyper bench for hyperextension Negative bench or decline bench
A selection of home exercise equipment: yoga blocks, yoga mat, dumbbells, pull-up/chin-up bar, push-up handles and gloves. Exercise equipment is any apparatus or device used during physical activity to enhance the strength or conditioning effects of that exercise by providing either fixed or adjustable amounts of resistance, or to otherwise enhance the experience or outcome of an exercise routine.
The Smith machine was invented by American Jack LaLanne, who rigged up a sliding apparatus in his gym in the 1950s. It was spotted by Rudy Smith, who commissioned Paul Martin to improve it. [11] [12] Smith then installed the modified model in a gym he was managing at the time, Vic Tanny's gym in Los Angeles. [13]
Abdominal muscles have many important functions, including breathing, coughing, and sneezing, and maintaining posture and speech in a number of species. [4] Other abdominal functions are that it helps "in the function of support, containment of viscera, and help in the process of expiration, defecation, urination, vomiting, and also at the time of childbirth."
Keene P. Dimick created an exercise bike in 1968. In 1977, Augie Nieto incorporated the company in as Lifecycle, Inc. to sell exercise bikes that were based on Dimick's design. [1]
Performing the crunch. The crunch or curl-up is an abdominal exercise that works the rectus abdominis muscle. [1] It enables both building and defining "six-pack" abs and tightening the belly.
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