If you can do 19 reps of this simple exercise after 60, your leg strength is considered elite

Try this simple exercise to test your leg strength over 60.
来自MSN

Reps Hold the Key to Muscle Growth. Here’s How Trainers Say You Should Use Them.

Look, if you’re at all curious about weight lifting and strength training exercises, you’ve probably heard the word “reps” at some point. You may have even used the abbreviation yourself but still not ...