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The diagram from Beard's 1897 coupler patent [1]. Janney couplers were first patented in 1873 by Eli H. Janney (U.S. patent 138,405). [2] [3] Andrew Jackson Beard was amongst various inventors that made a multitude of improvements to the knuckle coupler; [1] Beard's patents were U.S. patent 594,059 granted 23 November 1897, which then sold for approximately $50,000, and U.S. patent 624,901 ...
Hack squat machine. The squat is performed by squatting down with a weight held across the upper back (below the neck) and standing up straight again. This is a compound exercise that also involves the glutes (buttocks) and, to a lesser extent, the hamstrings, calves, and the lower back.
An elliptical machine, a type of exercise machine. An exercise machine is any machine used for physical exercise. These range from simple spring-like devices to computerized electromechanical devices to recirculating-stream swimming pools. Most exercise machines incorporate an ergometer.
Split weight training, also known as split routine, or split workout routine, is a type of exercise workout routine. It is a workout regimen where different muscle groups are targeted on separate days, rather than exercising the entire body in a single session.
The push-up (press-up in British English) is a common calisthenics exercise beginning from the prone position. By raising and lowering the body using the arms, push-ups exercise the pectoral muscles, triceps , and anterior deltoids , with ancillary benefits to the rest of the deltoids, serratus anterior , coracobrachialis and the midsection as ...
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.
A split jump (also known as lunge jump, jumping lunge, plyometric lunge or simply plyo lunge. Not to be confused with the split jump used by dancers, gymnasts and figure skaters) is a form of exercise which focuses on the upper leg muscles, especially the quadriceps: assume an upright squatting position with one foot forward and the other back
A weight machine is an exercise machine used for weight training that uses 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 ...