Does strength training build muscle even in your mid-80s? Researchers enrolled, two groups of people- age 65 to 75 or older than 85 -in the same training program three times a week each training session included three leg presses, leg extensions chest presses and other exercises. After 12 weeks quadriceps (thigh) muscle mass rose about 10% and leg, upper body (arms, chest, back) strength rose by roughly 20 to 50 percent, with no difference between groups. What to do: Think you're too old to build strength? You just lost that excuse.
Source: Int. J. Sport Nutr. Exerc. Metab. 2023. doc 10.1123/ijnem.2023-0087 CSPINET.ORG