When using a gym ball to train, all muscles of the core will be engaged to maintain form and function. To add more resistance, free weights can be used to make the exercise more challenging. Always be careful when using a Gym Ball
When using the Bench Press to train, the perctoralis major muscle and supporting muscles of the upper body will be engaged to powerlift the barbell. To avoid injury, one should assume position with the body weight resting on the buttocks and upper traps.
When using the treadmills or Stationary Cycles, Leg muscles are engaged to raise heart rate and at the same time train the respiratory and cardiovascular systems. As a result, it burns off calories which may help you achieve weight loss.