"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." If you’ve ever been posted up at the squat rack, wondering how heavy you can lift, there’s a simple way ...

Women's Health may earn commission from the links on this page, but we only feature products we believe in. Why Trust Us? If you’ve ever been posted up at the squat rack, wondering how heavy you can ...

If you’ve ever been posted up at the squat rack, wondering how heavy you can lift, there’s a simple way to figure out just how strong you really are. Enter: the one-rep max (1RM), or “the maximum ...