Become a Member

Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more.

Already have an account? Sign In

Become a Member

Get access to more than 30 brands, premium video, exclusive content, events, mapping, and more.

Already have an account? Sign In

Brands

Ask the Professor

Ask the Professor: Hamstring Conditioning Ball Curl

Get full access to Outside Learn, our online education hub featuring in-depth fitness and nutrition courses and more than 2,000 instructional videos when you sign up for Outside+.

Complete 2-3 sets, 10-20 reps; roll in for 1 count, hold for 4 counts, roll out for 2 counts.

Get to the bottom of your “tight” hamstrings with Erin Calderone, MS, NASM-CPT, CES, BCS, AFAA-GFI, in her Ask the Professor column.