Walking is a great way to stay active and build muscular endurance, but Grace Horan, MS, ACSM-EP, exercise physiologist at HSS, noted it’s not enough to build significant muscle. 

“To build muscle, the human body must be continuously challenged by increasing resistance and/or volume of exercise, which is known as progressive overload,” said Horan. 

The reason walking on its own can’t stimulate muscle growth effectively? Walking activates your slow-twitch muscle fibres, which build muscular endurance and resistance to fatigue, as opposed to your fast-twitch muscles fibres, which build muscle mass, explained Horan. 

Read the full article at runnersworld.com.