The popular 80/20 approach to training promotes doing 80 per cent of your training at an easy effort and 20 per cent hard.

Seiler’s endurance epiphany occurred in the ... ‘Whether the elite is training 20 or 40 hours a week, the training broadly follows this 80/20 split,’ says Seiler. At the extreme end, Paula ...

Runners often swear by the 80/20 rule for organizing their training—but this is no relation to the Pareto principle of the same name. Let’s talk about where the 80/20 idea comes from, how to implement ...

Though brain endurance training comes with an evident stack of benefits, “it’s not for every athlete,” says Ring. BET is hard ...