Which is better, Sweet Spot training or polarized training? To find out, Fast Talk hosts Trevor Connor and Caley Fretz invited in proponents of each type of training — FasCat's Frank Overton on the Sweet Spot side, and Boulder Center for Sports Medicine's Ryan Kohler to advocate for a polarized model — and let them have at it.

Don't know what Sweet Spot or polarized training are? Don't worry, that's covered first.

Now presented by Quarq.