Berkeley CSUA MOTD:Entry 46191
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2018/11/18 [General] UID:1000 Activity:popular
11/18   

2007/4/4-6 [Transportation/Bicycle, Health] UID:46191 Activity:low
4/4     http://www.powercranks.com/about/concept.htm
        Want to bike more efficiently? Use the PowerCranks! Each
        leg is independent of the other, ensuring proper strokes per leg!
        \_ Another silly solution to a non-existent problem.  -tom
        \_ It doesn't make sure that people actually exert force to propel the
           bicycle on the upstroke.  It only makes sure people exert enough
           force to lift the leg.
        \_ Take the power crank challenge?  No thanks.  I don't need psychotic
           episodes and facial sores.
2018/11/18 [General] UID:1000 Activity:popular
11/18   

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Cache (1866 bytes)
www.powercranks.com/about/concept.htm
PowerCranks(TM) integrates a one-way clutch in each crank-arm of your bicycle or stationary bike. This patented modification changes the cranks from being fixed to each other at 180 (as are regular cranks), to being independent from one another. Each leg can drive the bicycle but one leg cannot assist the other. Effectively, with PowerCranks(TM) the rider is doing one-legged pedaling with both legs simultaneously. This simple modification benefits the PowerCranks(TM) user: * Fully train the hip flexors and hamstring muscles that are otherwise difficult to train * Enable neuromuscular changes that improve cycling efficiency and running form * Balance the muscle effort and improve the coordination in lower extremities and core which can lower the risk of injury * Improve running ability while training in a non-impact environment * Act as a rehabilitation tool since the good leg cannot assist the bad leg (thereby utilizing all the major muscle groups in the legs). Twice as many muscles exercised results in increased basal metabolic rate compared to standard biking or spinning Why do PowerCranks have such a revolutionary effect? As children, we learn how to pedal our tricycles and bicycles by pushing on the downstroke and relaxing on the upstroke. As we grow older, we learn to push harder on the downstroke and unweight our feet on the upstroke. The reality is that, without PowerCranks(TM) training, we still leave back-pressure on the upstroke. Eventually, we may purchase toe-clips or clipless pedals to allow us to "pull up" on the upstroke. Even so, do we actually pull-up and achieve proper mechanics in our pedal stroke? We may use clipless pedals, but it does not mean we have changed our ingrained pedal stroke. This is the change demanded in the PowerCranks(TM) revolution. Become a better athlete by using more of your total muscle power.