Custom term paper: Personal Trainer

A healthy body means a healthy spirit. Nowadays people choose various kinds of sports to keep fit, or to spend their leisure time, or by some other reasons. Modern development of technologies also makes life easier for choose who want to loose extra weight and feel strong and cheerful. It is possible due to different kinds of exercise equipment, which allows you to do exercises in comfortable conditions and save a lot of time.
A dumbbell and a barbell are rather simple and natural in use. But they don’t account when you tired and the level of stress falls to the end of the set. They could be modified to give equal stress for different groups of muscles and to raise effectiveness.
The same story with a “Swiss Ball” which, on the other side, due to instability and lack of balance provides the engagement of many groups of muscles. More effective are weight machines: Smith Machines and Mechanical Shoulder Press.custom term paper
A pulley has an advantage here: it is a variable resistance device which makes the muscles work the same hard throughout the set. But it is not natural and can influence brain functions, besides it doesn’t take to account different categories of weight and age. The leverage should be modified to be controlled by user. Other examples for separate muscle groups are leg press, shoulder extension machines, machines that isolate the pectoral muscles through a seated bench press, and deltoid machines. One of the most famous machines I would also recommend is the Universal line that gives more concentration and optimal performance.
Few people prefer isometric exercise. Static resistant devices provide stretching of muscles without movement. But they are effective only in one position and turn out to be the least effective.
Further, dumbbell curls refer to the accommodative resistance equipment. They allow to gain tension and stress with pursuing in exercise and, moreover, the speed is controlled and therefore the danger of injury is less. We can also check up application of bands and chains here which I would recommend to everyone, though I’ve come up to the conclusion that the choice mainly depends on your aim, whether you need heavier load or more sparing training.

Reference
Todd, Jan. “From Milo to Milo: A History of Barbells, Dumbbells, and Indian Clubs.” Iron Game History 3.6.