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frame ageing and stiffness, lung strength, squishy bar tape(10 posts)
|frame ageing and stiffness, lung strength, squishy bar tape||ishmael|
Aug 9, 2002 8:08 AM
|Do the different metals used in making a frame get more or less flexable with age?
How useful is lung strength? and if it is improveable, how? (besides the powerlung gizmo)
Wouldnt the squishiness of bar tape and gloves make a bike less stiff and rob you of energy when standing in the drops?
What are my spelling mistakes above?
|You asked for it.||Spoke Wrench|
Aug 9, 2002 8:19 AM
|I don't know the answer to any of those questions, but you do have a syntax error that I'd be delighted to point out.
You don't actually stand in the drops. You stand on the pedals while holding the drops with your hands. I think it would be better to say "standing while in the drops"
Now I'm sure someone else will get to have fun pointing out some error in what I've written. Please be gentle.
|You asked for it.||ishmael|
Aug 9, 2002 8:31 AM
|Cant I get away with it since it's an expression? Kinda like, ooo I dont know,..."no food or drink"(its on the wall beside me). I noticed you avoided a period after the " mark. Is that because you are unsure what side it belongs on, I am.|
Aug 9, 2002 8:44 AM
|I imagine somebody will tell us.|
|re: frame ageing and stiffness, lung strength, squishy bar tape||netso|
Aug 9, 2002 8:40 AM
|Flexible not Flexable.|
|re: frame ageing and stiffness, lung strength, squishy bar tape||Jon Billheimer|
Aug 9, 2002 9:10 AM
|You can't do a lot to increase your lungs' absolute ventilatory capacity as that is genetically fixed. However, you can improve lung function by strengthening your respiratory muscles and learning certain techniques for enhancing gas exchange. One way to accomplish this is learning to extend the exhalation of your breath by abdominal contraction and passively inhaling by relaxing your abdomen and diaphram. The exhalation should always be to a longer count than the inhalation. A second technique is to purse one's lips or to push the tip of your tongue against your teeth when exhaling, making an "sss" sound. This will increase pulmonary back pressure which will enhance CO2/Oxygen exchange at the alveoli. I learned these techniques from Ian Jackson. As an ex-emphysema patient and occasional asthmatic, these techniques have helped me significantly. I no longer have any clinical emphysema systems and have not experienced a re-occurrence of allergic-asthmatic symptoms since learning to breath this way while on the bike.
Some cyclists have been tested while employing these techniques and one of the results was higher ventilatory volume.
|Spelling mistakes, grammar and answers||brider|
Aug 9, 2002 9:31 AM
|aging, not ageing |
improvable, not improveable
wouldn't, not wouldnt
flexible, not flexable (already stated)
periods go inside the quotation marks
Now to your answers:
(1) A bike doesn't actually lose or gain stiffness. A metal can undergo "work hardening" when it is bent permanently (bend a wire back and forth until it breaks -- this is work hardening). But in most cases, the loads on a bike frame are within the fatigue limit of the material used.
(2) It's not really "lung" strength (the lung tissue is actually very fragile), it's the strength of the intercostal mmuscles and the diaphragm. About all you can do is to improve the gas transfer rate by aerobic conditioning.
(3) Well, the firmness of the bar tape and gloves really has no effect on the stiffness of the bike, but it might affect how firmly you need to grasp the handlebar in order to feel "well connected." You really shouldn't be gripping the bars that tightly any way, even in a sprint.
|Anyway, not any way. nm||scottfree|
Aug 9, 2002 10:19 AM
|In this case the period goes outside the quotes. (nm)||Chen2|
Aug 9, 2002 11:51 AM
|leave spelling mistakes above||cyclopathic|
Aug 9, 2002 12:49 PM
|(1) carbon frames get more flexible with age due to layer separation. Metal frames mostly maintain same properties. Why mostly? first there's residual stress associated with frame mfg (welding, brazing). Break in removes stress and makes frames more compliant. This is very small change, usually not something you can measure. Second, material gets more flexible when it approaches failure point due to micro fractures.
(2) very useful ;). Beside powerlung gizmo you can do VO2Max intervals, endurance/tempo rides, yoga breathing exercises. Though max lung capacity is genetically predefined you can do alot to improve ventilation. There're also studies showing additional capillary growth associated with exercising, and it improves O2 absorbtion.
The most amazing things is that birds and whales can ventilate 80-90% of their lungs in one breath; humans can only manage 10-20%
(3) very minimal. If it weren't your hands would get fried
(4) have you tried checkspeller?