At the start of the 1930s the Soviet Union was the worlds largest aircraft producer by far. And as war clouds gathered during the late 1930s, the countrys production grew rapidly: Soviet production quadrupled from 2,529 in 1935 to 10,382 in 1939.
Gym Machines & Equipment. Most gyms have machines or equipment that will target the abdominals specifically. The seated abdominal crunch and captain's chair are two such machines that tone the rectus abdominis and lower abs respectively. Ask a fitness trainer to show you how to properly use machines to avoid improper technique and injury risk.
Posts: 2,158. Rep Power: 369. The counter balance loses its effect when heavy weight is used. At the machine at my gym, if you drop the empty bar, it will slowly drop to the springs because of the counter balance. Put 400lbs on the bar and drop it and it will fall just like a free weight bar. Smith machine bars (the 7ft olympic ones) are the same as a free weight bar (unless you are using 100lbs or less on a counter balanced machine), they feel lighter because the weight is balanced. Having said that, there are a couple of guys at my gym who bench 405lbs on a free weight bar but can't do it in the smith machine. If the bar didn't weigh nothing, they would be able to do it easy, even if they aren't used to the straight up and down motion.