Sprinting
While it’s a good idea to periodically increase your workout intensity, adding sprints to a running or jogging routine could put you at greater risk for injury after 50, Holland says. “Some people can do a 7-minute mile after age 50, but most benefit more from a slow and steady pace,” he says. Sprinting, especially without an extended warm-up, comes with a much greater risk of injury as we age. “The faster the speed, the greater the chance of pulling a muscle or developing some other lower-body injury,” Holland says. "In general, I recommend all exercises in moderation," Podesta says. “Plus, you need to consider any underlying medical condition before making specific recommendations.” Lighter weights using combined motions, such as squats versus leg extensions, work best, versus single joint movements that are not as functional.