Just before the start of this yearâ€™s Tour de France, WHOOP became theÂ official fitness wearable of the EF Pro Cycling team. All riders and staff were outfitted with WHOOP straps prior to the race, giving the EF team access to unparalleled 24/7 biometric data.
â€śThe Tour de France is arguably the pinnacle of endurance sport performance. WHOOP has allowed us to quantify both the strain and daily recovery of some of the fittest athletes in the world, and the numbers are impressive,â€ť saidÂ Kevin Sprouse, Head of Medicine for EF Pro Cycling.
The EF squad finished 4th out of 22 teams, and was the top team overall for 7 of the raceâ€™s 21 stages.
Below weâ€™ll share many of the insights gained from monitoring these athletesâ€™ physiological data while competing in one of the most grueling events in sports.
WHOOP quantifies the strainÂ (cardiovascular load) your body takes on each day on a 0-21 scale. Through the Tourâ€™s 21 stages (which spanned just 23 days total with only a pair of days off), the EF riders posted average day strains of 20 or moreÂ 13 times. Additionally, on other days they averaged 19.5, 19.4, 19.2, 18.8 and 18.0 (see graphic below).
To put that into perspective, WHOOP classifiesÂ , meaning the EF athletes basically pushed themselves to the limit nearly every time they got on the bike, for 3 weeks straight.
Itâ€™s also important to note that the WHOOP strain metric is highly individualized–so if an elite athlete and an average athlete do the same thing, the activity will almost certainly cause less strain for the better athlete. Considering that the EF riders are among the most physically fit humans on the planet (with the ability to take on significantly more cardiovascular load than the average person), the fact that they still put up strains in the 20s on a regular basis is somewhat mind-boggling.
Curious just how fit the EF team is? On the day the Tour began, the team membersâ€™ averageÂ resting heart rateÂ was 42 beats per minute (the American Heart Association says that anything between 60 and 100 bpm is normal), and their averageÂ heart rate variabilityÂ was 139 milliseconds (theÂ average HRV for all WHOOP members is 64 ms).
As the Tour progressed, it naturally took a toll on these impressive metrics. After the first week, the teamâ€™s average RHR had risen to 51 bpm, and its average HRV had dropped to 73 ms. However, it took just one day of rest for these numbers to bounce back. Following the ridersâ€™ day off prior to Stage 10, the EF teamâ€™s average RHR and HRV were actuallyÂ betterÂ than they were before the race began, at 40 bpm and 152 ms, respectively.
The team also averaged a 90%Â WHOOP recoveryÂ (a measure of the bodyâ€™s readiness to take on strain) after the first rest day, better than the 73% on the morning of Stage 1.
Itâ€™d be natural to assume that day after day of all-out strain would significantly hurt the teamâ€™s recovery each morning, but that was not the case with the EF riders.
â€śIâ€™ve seen lots of 20.7 [strains],â€ť said Sprouse, â€śrarely is it lower than 20. Whatâ€™s just as amazing is the fact that recovery scores tend to be good as well, often 55% and higher. That is a huge testament to the amazing staff we have supporting these guys at the Tour. From the finish line to bedtime, everything is set up to encourage recovery so that they can perform again the following day.â€ť
In fact, over the entire 23-day Tour, the teamâ€™s average daily recovery never dipped into the red (33% and below). Amazingly, it even stayed in the green (67% and higher) 4 times following stages where the average strain was 20+ (see above).
Another indication of just how hard these riders pushed themselves is the amount of time they spent at close to theirÂ max heart rate.
For example, in Stage 8, Neilson Powless (pictured below) was on the bike for a little more than 4 hours. His average heart rate was 165 bpm, and he spent 51% of the time at 80-90% of his max heart rate. Amazingly, he was in the 90-100% of maxÂ heart rate zoneÂ for 38% of the stage, orÂ 1 hour and 35 minutes.
After crushing themselves on the road all day, effective sleep is obviously an essential aspect of recovery. Powless, in particular, was spectacular at this. The team averaged just shy of 8 hours per night during the Tour, however Powless regularly got about half an hour more than his teammates did.
On the night of the raceâ€™s second rest day (between Stages 15 and 16), Powless got just over 9 hours of sleep. He also spent 5:51 (a whopping 64% of his time asleep) in what we call the â€śrestorative stagesâ€ť of sleep (REMÂ andÂ deep sleep). People usually only spend about 40-45% of theirÂ sleep time in these stagesÂ when the body repairs itself.
Similarly, following the first rest day, Powless slept for 7:59 and spent 5:02 in REM and deep sleep (63%). This helped him achieve a 92% recovery the next morning.
Photo Credits: Getty Images, Jered and Ashley Gruber