87 research-tied claims examined: 2 contradicted 4 overstated 3 context 68 supported 10 unverified
"I think there can be general agreement that when we say high-intensity, we're talking a relative heart rate of about 80% of your maximum." (said at 0:02:05)
No published record matching the claim was located; this does not prove the claim false.
"And so a typical untrained individual would have a resting cardiac output of about 5 liters per minute." (said at 0:23:20)
No published record matching the claim that a typical untrained individual has a resting cardiac output of about 5 liters per minute was located; this does not prove the claim false.
"it has been shown that high intensity exercise is more potent for stimulating autophagy and skeletal muscle than just an overnight fast fast itself and you don't even have to be in a fasted State when you're doing the high intensity exercise" (said at 0:39:15)
No published record matching the claim that high-intensity exercise stimulates skeletal muscle autophagy more potently than an overnight fast was located; this does not prove the claim false.
"Human muscle is much more variable, heterogeneous, and so elite endurance athletes tend to have a much higher preponderance of slow-twitch muscle fibers, 70, 80%. Elite strength athletes, powerlifters, tend to have much higher preponderance of fast-twitch muscle fibers. But the vast majority of us are walking around somewhere around 50/50, 40/60." (said at 1:01:59)
No published record matching the claim regarding the specific muscle fiber type distributions in elite endurance athletes (70–80% slow-twitch), elite powerlifters (predominantly fast-twitch), and the general population (approximately 50/50 or 40/60) was located; this does not prove the claim false.
"And the shear force itself, at least at the blood-brain barrier—and this, kind of when you were talking about muscle capillary, I was thinking about the shear force—it in and of itself in a dose-dependent manner is responsible for increasing VEGF and BDNF at the blood-brain barrier." (said at 1:14:09)
No published record matching the claim that hemodynamic shear force directly increases both VEGF and BDNF at the blood-brain barrier in a dose-dependent manner was located; this does not prove the claim false.
"Elite athletes, elite power athletes: 1,500 watts on the bike." (said at 1:25:52)
No published record matching the specific claim that elite power athletes generate peak power outputs of 1,500 watts on a stationary bicycle was located; this does not prove the claim false.
"Because that was a protocol that we've used a lot in our studies, minute on, minute off repeated 10 times. Took about 25 minutes for individuals. But now there's studies that have looked at 5x1 showing that much of the improvements, certainly in VO2 max, is almost as good." (said at 1:36:20)
No published record matching the claim that studies evaluating a 5x1-minute interval protocol show VO2 max improvements almost as large as those from a 10x1-minute protocol was located; this does not prove the claim false.
"Like classic Borg RPE scales are based on 6 to 20 because that generally correlated with young, fit individuals who had a resting heart rate of 60 and a maximal heart rate of 200; that's where that rating scale comes in." (said at 1:47:45)
No published record matching the claim that the classic Borg rating of perceived exertion scale (6 to 20) was designed specifically to correlate with the resting and maximal heart rate (60 to 200 bpm) of young, fit individuals was located; this does not prove the claim false.
"And then on the, you know, who is absolutely contraindicated, you know, atrial fibrillation—there are some very clearly defined no-gos that if you have certain conditions, that you shouldn't be engaging in vigorous-intensity exercise. Unstable angina would be another example." (said at 1:57:40)
No published record matching the claim that unstable angina and atrial fibrillation are absolute clinical contraindications to engaging in vigorous-intensity exercise was located; this does not prove the claim false.
"The UK guidelines explicitly refer to HIIT; uh the WHO and and and the US guidelines really do not, at least in terms of incorporating it." (said at 2:17:43)
No published record matching the claim that UK physical activity guidelines explicitly incorporate high-intensity interval training (HIIT) whereas WHO and US guidelines do not was located; this does not prove the claim false.