Hi there. I've recently started cycling again, and have the following two goals for my training:
1) Improve cycling performance and reduce body fat
2) Build (upper body) muscle
The problem I have is balancing the two above goals in my training as in some respects the two are contradictory.
I have read that at a low exercise intensity, I think L1 or L2, the majority of calories burnt come from body fat, and at increasing intensity (eg L3 / L4) an increasing proportion of calories burnt come from food.
My question is, firstly, why does the body use fat for energy at all, given that there is sufficient carbs floating around it can burn, when fat is supposedly
the second choice energy source? Am I going to be losing fat as a natural result of aerobic exercise, even if I don't lose weight overall?
Also, since I have generous stores of fat around my waist, need I worry about the body consuming muscle protein if I max the cycling training, since in theory it should use the fat stored ahead of this? i.e. will I still be able to build muscle?
Hope this makes sense!
Gary.
1) Improve cycling performance and reduce body fat
2) Build (upper body) muscle
The problem I have is balancing the two above goals in my training as in some respects the two are contradictory.
I have read that at a low exercise intensity, I think L1 or L2, the majority of calories burnt come from body fat, and at increasing intensity (eg L3 / L4) an increasing proportion of calories burnt come from food.
My question is, firstly, why does the body use fat for energy at all, given that there is sufficient carbs floating around it can burn, when fat is supposedly
the second choice energy source? Am I going to be losing fat as a natural result of aerobic exercise, even if I don't lose weight overall?
Also, since I have generous stores of fat around my waist, need I worry about the body consuming muscle protein if I max the cycling training, since in theory it should use the fat stored ahead of this? i.e. will I still be able to build muscle?
Hope this makes sense!
Gary.