3 mal die Woche dürfte wohl auf Dauer auch Probleme mit der Schulter geben, siehe auch hier :


Through doing many clinics and talking to many coaches and athletes, we became aware of the problem of bench-press shoulder. We estimate that 75 percent of all athletes who bench press three times per week have it. Specifically, bench-press shoulder is a dull to sharp pain in the front shoulder-joint area where the upper arm, chest, and shoulder meet. This pain comes from working out too often with too much weight. Typically, an athlete with this problem has been doing benches three times a week with maximum or near-maximum poundage. The real stress to the shoulder-joint area comes when the bar is one or two inches from the chest. Stretching and putting stress on the shoulder-joint area three times a week with maximum poundage is bound to cause problems.


http://www.humankinetics.com/product...xcerpt_id=3448