Another reason to back your perception of exertion and again helps support why I prefer to programme based on exertion/effort and time. That doesn't mean to say external assessments of speed/power are unimportant - they are crucial in tracking your response to training. This data is from 5,500 training sessions collected over 4 years with 21 professional cyclists from Team Sunweb a hugely successful set up. . . . From the author: . . . itโs the relationship between internal and external metrics that tells you whether youโre getting fitter or overly fatigued. In training, itโs meaningless to know that your internal load is going up or down if you donโt also know whether youโre going faster or slower. In racing, itโs useless or even counterproductive to know what power output you โshouldโ be able to maintain if you donโt also consider how youโre feeling that day. So the message here isnโt that you should ditch your power meter. Itโs that you should also trust how you feelโand track it. Those subjective numbers, which it may seem like youโre pulling arbitrarily out of a hat, are trying to tell you something meaningful. . . . #boxingscience #boxing #boxingtraining #boxingvideos #boxingworkout #boxingfans #boxingtalk #boxingfit #conditioning #sprints #sprinting #hiit #highintensity #intervaltraining #sit #sprintinterval #winning #running #runningmotivation #run #runninghype #hiitworkout #runningmotivation #fitnessmotivation #winner #fight #fitnesslife #fitnessjourney #runningman #instarun (at Sheffield) https://www.instagram.com/p/BpWR5bLA5TQ/?utm_source=ig_tumblr_share&igshid=1qfnh555t7t5v