@szihn that low angle technique is essentially what I try to model. You mentioned the smooth unhurried stroke. If video playback is normal speed, cadence is between 50 and 60 spm. While his speed is not that high, it’s a reasonable pace compared to his effort. Paddle length and blade area is equivalent to gears in a car transmission. Reaching a given speed for a 110 sq in paddle and one with less than 85 square inches of surface area depends on moderating output. The big blade accelerates faster, but the small blade simply takes longer for the paddle cadence to match the speed of the boat. Pushing beyond the capability of the paddle will show up with a splash at the catch. That doesn’t mean the boat won’t go faster, it just means you’re losing efficiency. The level of efficiency you strive for depends on how fast you want go, how much energy you have to spare, and how much abuse you want to impose on your joints. Extending the paddle length doesn’t give you more power, it simply allows you to dwell in the power range longer. Theoretically, it doesn’t matter if the length slows the cadence, because it doesn’t change the transition between exit and catch - unlike a longer high angle paddle which delays the transition from exit to power, length, the low angle transition is only a matter of inches longer. Therefore, the length you need is the length you can handle without going anerobic (measure that threshold by your breathing). If the longer paddle is too long, it will push you beyond your aerobic threshhold and impact speed, either positively or negatively. I’ll find out this season.
The primary advangtage of low angle is the short transition interval between the exit and the catch. Notice the slight hitch after the power blade exits, when he pauses for a fraction of a second as the paddle reaches level, before plunging to the catch. I’m not sure why that delay is there, unless he is setting up for a deliberate, efficient catch.
As I mentioned to you before, watch as your blade enters the water. A spash in front of the blade blunts forward progress, while a splash from the power face means you’re slapping the water, shocking your joints, and wasting energy. Similarly, watch your exit. If you fling a pint of water, that represents one pound of weight at the end of a stick. Multiply spm by 60 minutes by the duration of the trip to figure out the weight you moved unnecessarily. Then calculate the paddle weight coupled with the swing weight and distance its lifted. If the equation meets your expectations, or it doesn’t bother you, keep doing it. I don’t claim to be right, just that I think about it and try to mitigate the minutia. For me, it paid off. Some people just like to paddle without worrying about the details.
In a sprint, residual energy after the race is energy that didn’t improve your finish. That works for 400 meters which is over in minutes, or 2 miles, which is the anerobic limit of most paddlers. Covering 3 miles requires a more metered output, and the energy output equation changes again for 10 or 30 miles.
The key is to find the sweet spot of the boat design, so you can extract the most miles per calorie. Converting the glucose aerobically gives the best efficiency. The difference is like running you engine in choke mode or on cruise control. My goal isn’t how fast - it’s how fast can I cover a specific distances without energy depletion. I want to have enough surplus energy that enables me to burn out my reserves in the last 2 miles (20 to 25 minutes) of all out effort. That’s where the GPS is critical, and the speed/time graph is helpful to verify hitting the mark. You can see that pattern in a good run when speeds in the last 2 miles is above the average speed. If it drops off in the last few minutes, that balance shows an effective strategy where sufficient power remains to handle an emergency, or unexpected condition.
![1000006462|690x343]
If you look at the graphs, you can see the areas where I had an assist from conditions. Rather than trying hit 5.7 or 6.1 mph in that phase of the trip, I stayed closer to 5.3 mph to conserve energy for the resistance I expected during the return in the opposite direction. Still you can see the yellow and red lines in the two graphs that indicate I was exceeding my optimum energy output. Yet I still could manage an elevated power output in theclast two miles before a sharp drop off where I effectively bonked. I only use the GPS, but Craig uses the whole range of devices to monitor heart rate, speed, oxygen, blood sugar . . . Consequently, he calculates his outputbto the tenth of a mph. All that while paddling a 175 Tsunami barge.
(upload://ijzfX851Ax6aGEHfK04gcyjibPy.jpeg)
By burning off that residual energy, it helps build anerobic capacity for the next trip. ove use to I try to eliminate any delay which is why I manage a standard 72 spm, as well as short periods at 80 spm which takes a higher level of consentration.
The power lapse in low angle is miniscule compared to the high angle stroke, where the next power phase of the stroke is the length of the paddle hoovering overhead. That’s why a shorter paddle is better for the high angle stroke. Compared to the low angle stroke that benefit from the longer paddle. If you focus exclusively on a clean catch, the exit happens automatically.
If you rely on a GPS and haveva graph that illustrates speeds through the course, look at the spikes. If the spike range looks like a seiesmograph during a 7.3 tremor, contemplate whether you are going anerobic during that phase. You can’t exceed and sustain your physical capacity for long. Your body sensors shut will shut you down to prevent death from oxygen starvation. The red and yellow lines show the limits of my physical ability. A flat line shows that you’re managing your physical output efficiently.