Maintaining Muscle Mass as You Age
Therefore, the best means to build muscle mass, no matter your age, is progressive resistance training (PRT), says Dr. Storer. With PRT, you gradually amp up your workout volume—weight, reps, and sets—as your strength and endurance improve. This constant challenging builds muscle and keeps you away from plateaus where you stop making gains. (See “Working on a PRT program.”) In fact, a recent meta-analysis published in Medicine & Science in Sports & Exercise reviewed 49 studies of men ages 50 to 83 who did PRT and found that subjects averaged a 2.4-pound increase in lean body mass.
The power of protein
Your diet also plays a role in building muscle mass. Protein is the king of muscle food. The body breaks it down into amino acids, which it uses to build muscle. However, older men often experience a phenomenon called anabolic resistance, which lowers their bodies’ ability to break down and synthesize protein. Therefore, as with PRT, if you are older, you need more. A recent study in the journal Nutrients suggests a daily intake of 1 to 1.3 grams (g) of protein per kilogram of body weight for older adults who do resistance training. For example, a 175-pound man would need about 79 g to 103 g a day. If possible, divide your protein equally among your daily meals to maximize muscle protein synthesis.