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.
This way, by the time I roll over to the dumbbell rack, I already have a good pump going. After I have warmed up, depending on what week it is, I will start with either flat dumbbell bench press or incline dumbbell bench press. Each week I alternate my major point of emphasis. My first working set consists of 9-10 reps.