I knew he had a great idea. Vanessa Schwenker, a pound woman, had a bench. We went to a bench meet and somehow the back of her shirt tore completely. She benched , a PR. We felt lucky. When she got back home, she had the shirt sewn back together, but meet after meet she never made more than Now we know that the openbacked shirts are the best.
Looking back I am amazed how Phil mastered that shirt. Like a fast race car, these shirts are hard to master. I took Todd for a ride in my corvette, and it made him sick.
At the time, the car went It seemed faster, but not for long. I got bored and added nitrous to the Chevy. It went 9. Again, that seemed slow to me, so I put a motor and soon made an 8. You guessed it, I got bored again. So a on nitrous was added. It went 7. Had I started with a 7. My reflexes would not have matched the strength of the car. That same thing happens with lifters. Oh yes, and there are people who think the shirt is doing everything.
Unsurprisingly, this study demonstrated on a sample of 11 athletes that the use of a bench shirt improves the performance in terms of loads moved and speed of execution. In this sample, the Titan "Fury" shirt seems to allow, significantly, the best performances.
Figure 2. Difference of influence of the bench shirts on the maximum load in the bench press in comparison with the condition 'without shirt'. Figure 3. Difference of influence of the bench shirts on the mean and maximal speed during the concentric phase of bench press in comparison with the condition 'without shirt'.
Figure 4. If you pull on both sides of an elastic at rest 1 , it stretches 2. While stretching, it exerts a force to return to its initial length. That the shirt improve performance in the bench press will not surprise the strength athletes, but why? Finally, what a simple shirt made of cotton, polyester or denim could do?
Note, however, that denim shirts are not allowed by I. This notion will be detailed later in the biomechanics of sport and exercise course.
But what is elastic potential energy? To put it simply, consider the example of an elastic band Fig. At rest, it has a certain length. Pull on its ends at the same time, and the elastic will lengthen. Nevertheless, when you do this you feel some resistance. And the more you pull on the elastic the more this resistance increase.
Finally, if you release the elastic it quickly gets back to its original length. During the strain, the elastic has stored elastic potential energy. This energy is said to be potential because it can be returned and transformed into kinetic energy.
It is this energy that helps the elastic to return to its original shape. And as surprising as it may seem, it is the same principle that applies in the example of the bench press and the assistance shirt.
Yes, the shirt is not made of rubber this is specifically prohibited by I. A bench press shirt, or bench shirt as it is commonly called, is a specialized type of shirt frequently used in the bench press portion of powerlifting competitions.
Bench shirts not only assist in protecting the shoulders and chest from the weight of the bar during the exercise, they also actually make it possible for the lifter to lift significantly more weight than he or she could without wearing the shirt.
The earliest bench shirts, first produced in the s, were mostly worn for protection, but they have evolved into very sophisticated garments that most powerlifters now wear for the explicit purpose of increasing the amount of weight that they can lift.
At the heart of the physics of the bench shirt lies the concept of stored energy.
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