Reducing core body temperature through palmar cooling can improve exercise performance.

“In other words, you can heat up best at the face, the palms and the bottoms of the feet, and you can cool down best at the face, the palms and the bottoms of the feet than you can anywhere else on your body.”

“So cooling the core, I want to be very clear that it's not cooling the muscle, wasn't about cooling the chest alone or just cooling the palms, it was about allowing cold to pass through the palms because of the unique vasculature that's there, these AVAs allowed the subjects to do far more work per unit time.”

“what they essentially found was that cooling the palms, palmer cooling allowed people, athletes, and recreational athletes to run much further, to lift more weight and to do more sets and reps to a absolutely staggering degree.”

“Absolutely incredible data showing that the proper use of palmar cooling, so the palms or the upper half of the face or the bottoms of the feet, can vastly, I mean vastly increase the volume of exercise that one can do and still recover from that exercise and derive benefits from it.”

“And we've actually demonstrated that with a naive group. We had a class, a physical conditioning class. And we had half of the, the first days of the class, we had to establish their true capacity, what they could do. So these were pretty heavy workouts for these new recruits. And we gave half of them the benefit of cooling and the other half not. And then we had them record their subjective levels of delayed onset muscle soreness. And those that were cool, didn't have significant muscle soreness.”

“the way that palmer cooling can improve performance by way of reducing core body temperature is known and that is because when one engages in exercise or muscular output of any kind, strength or endurance exercise, the range of temperatures under which a muscle can perform is actually very narrow.”

“So the effects of palmer cooling are very clear and very robust. And in the context of endurance exercise almost always allow people to do more work, to go longer with less perceived effort and to quit later so to speak.”

“So the very first experiment we had I think maybe 18 subjects just off the street. For this group with one trial with and without cooling we could double their endurance walking on the treadmill, walking uphill on the treadmill in the heat like maybe 40° ambient temperature, 40° centigrade.”

“So from one day to two or three days later with cooling, he doubled the total number of dips >> by adding more sets and more repetitions to each set.”