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Oct
22
comment How is energy derived from muscle, fat and glucose at different intensities?
From your post: "So if the total energy expenditure is relatively high, 50% from carbohydrates, 40% from fat, and 10% from muscle, which creates lactic acid." And, lactate != lactic acid, despite the common misconception.
Oct
22
comment How is energy derived from muscle, fat and glucose at different intensities?
-1 again for a rather glaring mistake. Lactate (the actual term for what is commonly called lactic acid) does NOT come from burning muscle. I'm also not sure where you got your quote, as it is not from the link that you provided. If you do look at around slide 33 onward, there is good information on the ratios, what lactate actually is/does (It's a secondary fuel source), and where muscle energy comes from.
Oct
22
comment How is energy derived from muscle, fat and glucose at different intensities?
If your body is to the point of breaking down muscle for energy, you are WAY far over length of exercise, or you have some disease state showing up. Fat stores will be used long before muscle, so unless you are 3% body fat and working out for 5-6 hours, you should have plenty before your body turns to muscle.
Oct
22
comment How is energy derived from muscle, fat and glucose at different intensities?
It is ratios. It's not like eating the steak, then the peas, then the potatoes. It all gets burned at different ratios according to intensity.
Oct
19
comment Position of weight during weighted pull ups
@zero-divisor to some extent. Open chain if you move the weight off the expected line, it can introduce injury and/or make the exercise unnecessarily difficult (Bringing a bench press down to the hips instead of the chest). If you move the weight away from the central line in a closed chain, it either forces a form adaptation or minimizes the effectiveness (Such as placing a weight plate on the calves when doing pushups, doesn't do much).
Oct
19
comment Workout during Menstruation
Also, your friend needs to be aware of nutritional requirements during this time. Increased iron, folate, calcium, zinc and iodine being primary among these.
Oct
18
revised Workout during Menstruation
Spelling correction
Oct
18
answered Position of weight during weighted pull ups
Oct
18
comment Increase range of movement in Shoulders
+1 right back at you for the recommendation on the internal/external rotation and the rotator cuff plug.
Oct
16
comment I run 7 miles in an hour, how can i make it 10 miles in an hour?
@Baarn - You edited it but left in the colloquialism "ain't"? :)
Oct
16
comment Weird measurements of my heart monitor
Anaerobic means without oxygen, and is really only sustainable for short bursts (up to 30ish seconds), and is somewhat unrelated to heart rate. Many elite marathoners will be in the 150-170 range for their races for 2+ hours. My n=1 is that during sprint triathlons (~ 1 hour in duration) I will be anywhere from 150-180 depending on effort level.
Oct
15
comment Weird measurements of my heart monitor
Also, a HR of 160 is not "well into the anaerobic".
Oct
15
comment Weird measurements of my heart monitor
150 bpm is not high at all for someone running. However, if your polar HR monitor is reading 160, did you take your pulse manually to compare?
Oct
14
comment relationship between power and body fat
Yes, we do want the message to carry correct information. Your answer is barely even related to the original question.
Oct
14
comment Increase range of movement in Shoulders
No exercise will "lock in" a joints range of motion. For safe shoulder stretches, look at modern swimming stretching. The shoulder is mainly held together with ligaments/muscle, there isn't much defined structure, so the ROM of the shoulder will come from muscle flexibility more than anything.
Oct
14
comment What exercises will bulk up the pectorals and shoulders while avoiding the arms?
Why do you want to bulk those muscles specifically without the arms? What about the latissimus dorsi?
Oct
14
answered relationship between power and body fat
Oct
13
comment What is this chest pain I get every time I run?
Lets see...I run, I get chest pain. What's my best course of action...TO THE INTERWEBS! Go to a doctor. Chest pain is nothing to mess around with.
Oct
11
comment Is running safe for me
I'm 46. I regularly hit in the 190's on interval training. 220-age was intended as a "safe" level for cardiac rehab patients, and was originally based on a very small sample (< 10 people). And as far as the OP stating if he has a bad heart, he may not know the state of his heart health, very few people know, many assume. Supporting study from an Exercise Physiology journal: cyclingfusion.com/pdf/220-Age-Origins-Problems.pdf
Oct
11
comment Is running safe for me
-1. 220-age is one of the worst myths in exercise science, and you have no clue about the actual health of the OP's heart.