2. Cyclists generate more power and (more leg muscle engagement) and therefore need more fuel.
As others have pointed out... what the heck are you talking about? It's fine to not know things, but you shouldn't pretend to know things (and speak authoritatively trying to convince others to listen to you) when you actually don't have a clue.
For anyone concerned, T2D is caused by a high fat diet. Just look up Sir Harold Hemsworth, Walter Kempner, or look up how scientist induce diabetes in test animals.
Hah! No. You're completely wrong. T2D is caused by a high-carb diet, it can be reversed with the low-carb, high-fat diet (LCHF). Read article below about world-class athlete Sami Inkinen and the Virta Health study.
Virta Health is a five-year-old start-up that wants to reverse Type 2 diabetes without medication. Its treatment plan offers patients personalized dietary guidance, health coaching and biomarker tracking.
The most amount of calories I've ever consumed was when I cycled 200 miles in a day on an indoor trainer to win a friendly cycling distance competition in the gym themed after Tour de France. I joined the competition late and the only way I could win was to cycle that much in a day.
I was in great aerobic shape having stacked 100 mile running weeks for the 6 months before this. On a normal 14 mile run in doubles day plus weights I would consume around 4,200 calories. On the 200 cycling miles in a day, I was so surprised that I consumed over 9,000 calories and never felt full. It's like the furnace burned whatever I ate to fuel the constant pedaling for 10-11 hours (more with breaks).
For anyone concerned, T2D is caused by a high fat diet...
Are you a marketing bot for Coca-cola corp? aka, Big Food. Why else would you propagate such misinformation campaign. T2D is caused by carb intolerance, it's almost like a "carb allergy." Over time, the pancreas wears out because of over consuming carbs. Watch Dr. Sarah Hallberg's (RIP!) TedX talk.
For anyone concerned, T2D is caused by a high fat diet. Just look up Sir Harold Hemsworth, Walter Kempner, or look up how scientist induce diabetes in test animals.
Hah! No. You're completely wrong. T2D is caused by a high-carb diet, it can be reversed with the low-carb, high-fat diet (LCHF). Read article below about world-class athlete Sami Inkinen and the Virta Health study.
I can't tell if you're joking. The science of T2D has not changed since it was first discovered by Sir Harold Hemsworth nearly 100 years ago. The "keto" diet or any low carb diet only masks the condition, it does not reverse it. The only way to reverse it is by removing from the diet what initially caused it: large amounts of fat. There is no such thing as a "carb allergy," it's insulin resistance, and it's what happens when the insulin receptor sites on every cell in your body are coated in fat, leaving insulin nowhere to go and blood sugar high. This signals the pancreas to release more insulin, and, over time, it eventually cannot keep up. Let me ask you this, what is a food that you consider "high carb?"
2. Cyclists generate more power and (more leg muscle engagement) and therefore need more fuel.
Sage, you've got this one backwards. There is zero question that running requires more fuel than cycling at similar relative intensity. This has been known for as long as we've been measuring oxygen consumption in labs.
If you've used the Stryd footpod, your power zones while running are probably 50 watts or more above your comparable cycling zones. (Not looking to start a debate about the validity of "running power," but what Stryd is doing is basically estimating metabolic power, then scaling it to cycling power measured at the crank. So if your Stryd "power" is 15% higher than your cycling power, you are burning 15% more calories.)
Now, if you put a pro cyclist on a treadmill and hook him up to a metabolic cart, it's possible he'll struggle to put up the same numbers, but that's just because he doesn't have any experience running.
OP, I think the impact of the carb craze on running shows up mostly in two places. First is ultrarunning, where the calorie needs are extreme and having more carbs allows one to operate at a higher relative intensity. Second is in training. More athletes are aware that lack of adequate glycogen is interfering with quality workouts, and there's more attention to ensuring that they enter those key sessions with sufficient fuel.
I don't think the carb revolution is really coming to the marathon. For one thing, athletes at race pace already struggle to consume much. Elites are frequently losing over 4% of their body weight over the course of a race. They're often getting only a few small gulps from each bottle before tossing it. Trying to get down 100+ grams per hour would be an extreme challenge.
It also seems that carbs are already a solved problem in the marathon. Evidence suggests that either carb loading or taking gels aids performance, but that both together have no additive effect. So it's very likely that athletes adopting best practices (as of the last few decades) are not experiencing performance limitations due to insufficient fuel.
Let me clarify:
(And yes I think even trying to quantify "running power" is silly and so is Stryd. It's not a calculation of real wattage like the power meter readings (mechanical) that we are getting on a bike. So don't compare them! Running is more "inefficient"...obviously (we can't "coast downhill"). But in cycling we can hold higher relative HR values for longer periods of time more often because it's non-impact.
On a bike pros can wail at 400watts for hours on end. They push higher on climbs and it's a more effective mode of engagement in terms of harnessing the body's ability to "do work."
Totally different training strategy (cycling v running) and fueling is easier because of the mechanics and how the body is worked. Like I said: You can eat and drink more easily without GI distress simply because of the lack of vertical oscillation on the stomach. Not to mention bottles mounted on a frame etc.
It's why pro cyclists need to train a good 4-6 hours a day whereas most pro runners are topping out at 2-3 hours of running a day only. The skeletal muscular pounding of even going at LT1-LT2 too many times and miles per week is simply too demanding on the body in running. Let alone Vo2max intervals.
And I stand by my stance on doping. You simply can't take that one out of the equation when it comes to top performances: In track, marathoning, ultra running and cycling etc.
The "keto" diet or any low carb diet only masks the condition, it does not reverse it.
A low-carbohydrate, ketogenic diet puts Type 2 diabetes in remission (did you even watch the above Ted talk? Patients going off all of their insulin and diabetes meds. ) - so it does in effect reverse it. However, if the patient goes back to eating high-carbs, the condition will present itself again.
It doesn't "cure it," but the low-carbohydrate, ketogenic diet can keep T2D in remission for a lifetime. We are partially arguing over semantics. T2D is like a carb intolerance.
