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Showing posts with label turnover. Show all posts
Showing posts with label turnover. Show all posts

Tuesday, August 10, 2010

4. Stride rate is the key to successful running


The forward lean in running is free speed, but the high stride rate, turnover or cadence really is the most important aspect of successful running. The less the amount of time, per foot strike, your foot can be on the ground, the less strength is required, the less fatigue is accumulated & the less eccentric micro tearing in the leg muscles takes place. A hallmark of champion distance runners is a stride rate of over 180 steps per minute – some as high as 208! Count your cadence by counting the number of foot strikes you achieve with one foot in 15sec & then multiply that by 4. This will give you a single leg turnover. The minimum number you are striving for is 23 (or 92 steps per foot per minute, which is 184 for both feet). Your length, leg length or gender is irrelevant. Lastly, do not simply try to move up your cadence by moving your legs faster; this may lead to injury & may not improve performance. Do this by leaning slightly forward from the ankle, staying tall through the hips, bending your elbows 90*, (till you could hold a pebble in the crook of your elbow & not drop it for the duration of the run), punching your elbows rearward slightly &, most importantly, pushing your foot to the ground, (but NOT while on the ground). Do this rather than launching up into the air (pushing off) & dropping to the ground – a recipe for injury, fatigue & poor performance.

Bobby McGee – Bobby McGee Endurance Sports
www.BobbyMcGee.com

Thursday, July 16, 2009

Cracking the tough nuts who CANNOT get their cadence up


Those of you that know my mechanics methodology will recall that I insist that an increased cadence should not be sought as a primary objective, but should rather be a result of the forward lean & the unloaded downward application of force, until the foot hits the surface. Thereafter loading takes place as momentum causes the pelvis to continue forward, but the foot is grounded & the psoas, hip & soleus, & associated tendons & ligaments load elastically. While this is still completely correct in my estimation – I have the hardest time teaching athletes to fire the glutes & not the psoas concentrically. Today I had something of a breakthrough – while working with an older marathon runner (not the lady in the pic - she is a pro IM athlete!) for about the 6th or 7th session, who has a very slow stride rate: Despite doing the intermittent application of resistance across the pelvis from the rear with a harness which, as usual, increased his power application correctly, as soon as I backed off, he again engaged the psoas & started lifting again.
So I went against my better judgment & ran next to him & told him to match my cadence no matter what – i.e. move up stride rate as a primary objective. He popped upright, lost power, but looked great & the level of dissipation (& consequent reduced impact sound) decreased dramatically & all I had to do was have him reinstitute the lean & voila he was a racing machine!
Conclusion: Metronomes work as cadence guides, as long as the forward lean aspect is addressed & upward oscillation is limited/eradicated.

Wednesday, July 15, 2009

Stride Rate - The Rhythm of the Run


Stride rate clearly is a wonderful indicator of performance. In any given race it is interesting to note that the runners with the higher stride rates are the most likely to be the fastest. They will definitely be better kickers & have less drop off of in pace in the closing stages, especially in the longer races. In discussions with elite African runners it becomes clear that what they tune into during a race is rhythm—not effort, breathing, heart rate or even pace. The cadence is the underlying drum beat of the run. When going slowly the stride length is shorter, when running uphill it is shorter, when running down hill it is longer, when running on soft surfaces it is shorter , when running faster it is longer – but the stride rate stays the same