This results in shortness of breath and pulmonary edema. Common causes of left-sided failure include the following: 1  Drinking too much alcohol. 2  Heart attack. 3  Heart muscle infections. 4  High blood pressure. 5  Hypothyroidism. 6  Leaking or narrow heart valves.
Â· just now. Report Abuse. Since you are trying to tone, do 2 or 3 sets of 12-15 reps. In other words, do 12-15 squats or leg presses, then rest 30 seconds to one minute, and repeat one or two more times. If you were trying to gain muscle mass, you would do less reps and more sets with a higher weight.
After 4 weeks (12 sessions) you should do a regimen of 4 sets. The first 2 sets would be to perform as many push-ups as you can in 30 seconds with your knees down. Then 2 sets of as many as you can for 20 seconds with your knees up. Remember to first warm-up and stretch prior to any physical training, and always use proper form.