引用第27楼光光于2012-04-23 01:20发表的 :
过大又怎么定义呢,shelden的观点只能代表他自己,我不想被代表。
我的观点很明确:选择合适自己q值的曲柄,不要盲从各种舆论。没有什么可反驳的。中国有句老话,实践是检验真理的唯一标准
前面Coolsear 已经提到了,Sheldon 的观点是基于如下三个原因,
When we walk, our footprints fall almost in a straight line under the center-of-gravity of our bodies. When we cycle, the "tread" forces our feet to be exerting their force farther apart than they are designed to do. Some theorists blame this for knee and hip problems experienced by some cyclists, but the jury is still out on this.
A wider "tread" also creates a greater sideways force when pedaling out of the saddle, so the rider must exert more upper-body strength when riding "en danceuse".
A wider "tread" decreases pedal-ground clearance when the bicycle is banked over into a tight turn.
而结论则是 For most cyclists, the narrower the tread the better.
而你的"胯骨宽度"理论却并不完善,比如胯骨宽度是多少?投影下来,扣除两倍的半个脚掌宽度之后,还剩多少?这个数值,对于现在的牙盘的Q,是大是小?一个问题都回答不了。
至于实践,我一直说,我毫不怀疑人体的潜力和适应能力,但是,你怎么知道你适应的,养成的习惯,就一定是合理而没有伤害的?