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Cover Story:

Evidence-based Strategies for Helping Clients Improve Endurance Performance

by Lance C. Dalleck, Ph.D., Ryan M. Weatherwax, M.S., and Isaiah St. Pierre

Many of your clients have undoubtedly committed to running a half-marathon (or longer race) in the coming year. To help you design effective programs for these endurance-minded clients, here are the latest evidence-based training strategies for improving three key performance-defining physiological parameters related to endurance: VO₂max, lactate threshold and economy.

Certified™: Training and Performance Special Issue 2016

HIIT Workouts Starting to Feel Stale? Try These Innovative Ideas for Making HIIT Workouts Fun Again

by Amanda Vogel
Health and Fitness Expert

While any unskilled trainer can assault clients with exercises that are over-the-top challenging, educated fitness pros know that programming safe, effective high-intensity interval training (HIIT) workouts requires forethought and purpose. Read on for expert-tested ideas and inspiration for keeping HIIT drills fresh without compromising the basic tenets of intelligent interval exercise.