Home Swimming Pool Two New Metrics to Consider Breaststroke

Two New Metrics to Consider Breaststroke


Courtesy of Gary Corridor Sr., 10-time World Document Holder, 3-time Olympian, 1976 Olympic Video games US Flagbearer and The Race Club co-founder.

Adam Peaty and Lilly King have rewritten the principles on breaststroke method. They each pull extensively, elevate the shoulders extraordinarily excessive, crash down arduous with the higher physique and head, which is timed exquisitely with the propulsion from their kicks. Oh, and did I overlook to say that their stroke charges are quicker than almost everybody else’s?

We name the new technique the Power Breaststroke. It’s a lot simpler to explain than it’s to show or be taught. A part of the explanation for that’s that Energy Breaststroke requires, as Indiana College Head Coach Ray Looze describes, lightning-fast legs. Not everybody has that skill. For the reason that kick contributes nearly all of the breaststroker’s pace, Energy Breaststroke additionally requires that they use a way that won’t considerably gradual them down after the propulsive kick happens.

The lightning-fast legs of Energy Breaststroke are required to excellent the timing of the method. Breaststroke is essentially the most timing-sensitive stroke for the reason that pull and kick happen independently. The kick, which is already crucial supply of propulsion, turns into much more highly effective when its peak propulsion coincides with the physique and head crashing down into the water. That is known as coupling, however it’s a problem to do in breaststroke!

For that to occur, the higher physique and shoulders have to rise out of the water just like the legendary Phoenix. The decrease again wants to increase or arch totally, bending the physique to almost proper angles. Then, the higher physique and head want to come back crashing down aggressively, with the pinnacle main the way in which. By the point the physique reaches the water on the way in which down, to attain coupling, the legs should be in propulsion mode. The nearer they’re to peak propulsion, the higher. The result’s an amazing surge ahead, assuming the swimmer generates first rate propulsion with the kick. 

When a breaststroker elevates out of the water as excessive as potential, it accomplishes two issues. First, it buys the breaststroker just a little extra time till the physique hits the water. Second, it will increase the kinetic power of the physique coming down. The upper the swimmer climbs, the more durable she or he falls.

One metric that we now use in Velocity Meter technology to evaluate breaststrokers is the time between peak propulsion from the pull and peak propulsion from the kick. In impact, that measures the breaststroker’s leg pace throughout the kicking cycle. With elite breaststrokers, like Peaty, King, or Rebecca Soni, we imagine that point is round .5 seconds. If it takes for much longer than that, even a number of hundredths of a second, the swimmer misses the boat. The coupling power of the higher physique is wasted as a result of there is no such thing as a kicking propulsion happening when the physique hits the water. Shortly after the physique hits the water, its kinetic power goes to zero.

A second metric that we really feel is necessary in breaststroke is the share of velocity misplaced after the kick. Primarily, that could be a measurement of how nicely the swimmer is streamlining after the kick at each ends of the physique. In different phrases, how nicely the swimmer retains the pace from the kick. The metric is completely different than distance per stroke, which additionally measures propulsion. This one simply focuses on holding pace by decreasing frontal drag.

With among the elite breaststrokers we’ve examined, like Olympian Mike Alexandrov, we’ve discovered that shedding 20-30% of the pace after the kick is nice. With breaststrokers utilizing poor method, we regularly discover that the swimmer will lose over 50% of his or her pace after the kick. I’ve seen as excessive at 80% lack of pace! Ouch.

This week, in our breaststroke video series, we proceed with among the methods we use to assist the breaststroker’s leg pace, to allow them to seize their physique’s power. We additionally display the best way to retain the pace after the kick utilizing good streamlining methods. We hope you’ll be a part of us in Lane 2 or Lane Three for our tutorial movies.

Yours in swimming,

Gary Sr.

Gary Corridor, Sr., Technical Director and Head Coach of The Race Membership (courtesy of TRC)

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