Q&A #25 - RPE or power/pace in workout prescriptions, best cross-training for running, and Big Days and 70.3 races in preparation for an Ironman   Is it better to use subjective Rating of Perceived Exertion (RPE) or objective outputs like power or pace when prescribing workouts? What is the best cross-training method for running when carrying an injury?  Where in your Ironman training program should you include Big Days, and how should you prepare and recover from them?  How should you taper and recover from 70.3 races in the lead-up to an Ironman, and should you race them at planned Ironman intensity?    LINKS AND RESOURCES:   That Triathlon Show website  Coaching Training Plans World Champions keep things simple: training masterclass with Joel Filliol | EP#172   SPONSORS:   ROKA - The finest triathlon wetsuits, apparel, equipment, and performance eyewear on the planet. Trusted by Javier Gómez, Gwen Jorgensen, Flora Duffy, Mario Mola, Lucy Charles and others. Get 20% off your entire order with the discount code THATTRIATHLONSHOW.     RATE AND REVIEW:   If you enjoy the show, please help me out by subscribing, rating and reviewing.      CONTACT:   Want to send feedback, questions or just chat? Email me at mikael@scientifictriathlon.com or connect on Twitter - my handle is @SciTriat.