ireland57 wrote:Alex, I'm in a state of confusion here.
The bike fit I just got done has set out a lot of strengthening and stretching based around my core strength and flexibility (or lack of it tbh).
The person who did the testing said that core strength was paramount to mountain biking and important to road biking.
I.e. if there's no core strength other muscle groups will take over.
In my case glutes don't do any work but lower back and quads do. This is possibly from lifetime of building work (lifting weights far too heavy for my size).
Regardless of the cause since I started following her suggestions (about a stable core helping the bike handle properly uphills, removing excess strain from the lower back and lower body stabilising instead of arms and shoulders doing everything) I suffer less pain.
The glutes should be working; they weren't; quads, lower back and shoulders did everything and suffered the consequences.
There's been improvement in less than 2 weeks.
What does control the bike?
You are wrong if you think the glutes are not doing any work. It just may not feel like it but they are working.
Flexibility and strength are totally different things, which are you talking about?
And are you anecdotally attributing the improvement to the better position on a bike (which is what I've been saying) or from 2 weeks of core work?
Core is helpful when upper body becomes more engaged, such as happens in sprint, BMX, MTB etc. and guess what will help the core for those events? yep sprinting and MTB and starts and accelerations and hard efforts etc on a bike.
Core are deep down, they don't drive the bike or provide the power.
Seriously, how much core strength do you think is needed to sit on a bike and pedal and hold yourself up? I mean
both legs are only pushing ~ 14 kg on average when doing 250 watts and they are the largest muscles we have.
If you train, and some muscles are not up to the task, then provided training is progressed in a sensible manner, they will adapt to the stimulus. just like our legs and heart does.