Posts Tagged ‘Leg Speed Drills’

The EKG workout

Friday, December 17th, 2010

Had a new workout sent to me for last night. Looking at the data chart for the session, I’ve decided to call it my “EKG Workout”. Of course, it wasn’t my heart causing the spikes, it was my legs.

Watts, RPM, and BPM graph

No, this isn't a stress test... (Click to Enlarge)

The setup was my Giant road bike in the trainer with the gearing set at 38:13. It was supposed to be a training session on my fixed gear, but I’ve not yet figured out how to mount it securely in the trainer. The Giant would have to do, though I’m sure that even though the gearing was the same, the overall experience didn’t match exactly.

It was later in the evening by the time I got on the bike. I had been at a board meeting and the way things were going in the meeting I figured I would be there past 10 PM. Thankfully, some of the agenda items were moved to a future time and the meeting suddenly finished up and we adjourned. I was able to be on the trainer by 9:30 PM.

My first instruction was to warm up for 15 minutes. I was to ramp up my effort from about 2 RPE (rating of perceived exertion) to about a 6.  This is one of those things I have always struggled with. How do I really know what a 2 is or a 6? Typically, I just either go hard or go easy. I figure I’ve got to come close in there somewhere and if I’m turning my legs, then it can’t be bad for me.

That is one of the reasons why I like training with power. It is more absolute. I must prefer instructions that say, “Ride between 160 -190 watts and ramp up to 230 watts.” That I can measure and know I’m where I should be.

Anyway, I ended up riding at about 180 watts turning 88 rpm for that warm up period. As I started it out I realized I might have an issue with the second portion of my workout. The problem was that as I would start out my wheel would slip on the roller and the “jump” in power you would typically get from a quick start was negated by the lack of grip.

The second part of the session was to “Start at 8 m.p.h. & 50 rpm’s, stay in the saddle and push pedals as hard as can working up to 85 rpm’s as quickly as possible.” Two things: 1) I had no idea what speed I was going. I use a Garmin to measure my speed and when you are on your basement trainer — well. 2) I wasn’t sure how long to go. Turns out I was going from 50 rpm to 85 rpm so fast it wasn’t registering on the computer screen.

I think part of that was due to my wheel “slipping” when I attacked. The wheel was turning much faster off the start than it would be on the road. I was going from 55 rpm to 100 rpm in no time.

So, it was time to adjust. What I decided to do was turn it into a quasi leg speed drill. Each effort would last for 30 seconds. For some I would attack and try to hold a leg speed of 120 – 130  rpm for as long as I could during the 30 seconds. For others, I would start at a slower rpm and work my way up to a top effort.

Effort 1: Average 125 rpm / Max. 146 rpm – Average 567 watts / Max. 852 watts

Effort 2: Average 123 rpm / Max. 144 rpm – Average 559 watts / Max. 744 watts

Effort 3: Average 118 rpm / Max. 127 rpm – Average 464 watts / Max. 584 watts

Effort 4: Average 117 rpm / Max. 127 rpm – Average 460 watts / Max. 550 watts

Effort 5: Average 115 rpm / Max. 136 rpm – Average 467 watts / Max. 704 watts

Effort 6: Average 117 rpm / Max. 143 rpm – Average 470 watts / Max. 780 watts

Effort 7: Average 108 rpm / Max. 144 rpm – Average 412 watts / Max. 833 watts

Effort 8: Average 109 rpm / Max. 142 rpm – Average 420 watts / Max. 772 watts

Effort 9: Average 132 rpm / Max. 146 rpm – Average 379 watts / Max. 818 watts

You can see from the numbers above how the various approaches to the efforts changed the results. The data above is reflected in the chart near the top of the post. You can see the burst broken up by “5 minutes between efforts at RPE of 1-2.” That is what makes it look like an EKG.

One thing seems pretty clear, I can’t pedal any faster than 146 rpm when spinning with a 38:13 gear ratio. I have exceeded 200 rpm in previous leg speed drills. Last night I was turning as fast as I could at times and the max I could get out was 146 rpm.

I wasn’t paying that much attention to my wattage during the session. My peak was only for 2 seconds at 822 watts. 10 seconds was 716 watts. No sir, 38:13 is NOT my sprinting gear!

Overall, it felt like a good workout. As I cooled down for the last 10 minutes or so, I felt that little spot nauseousness in my upper stomach. That normally means I’ve put out a pretty good effort. Those sudden spikes of effort gave me a pretty good shock to the system.  I’ve had that feeling in races before. Good to get used to it again.

Oh, as for the heart? Don’t think I’ll need an EKG. Average heart rate for the entire session was 132 bpm. The maximum output was only 146 bpm.

Leg speed drills – all spun out

Wednesday, December 23rd, 2009

After joining the TrainingPeaks webinar yesterday, I went out all motivated to get some data! I took a look at the plan for the day… Ah, leg speed drills. Wouldn’t be seeing a lot of wattage today. Still, I would have the goal to see what maximum cadence I could generate. So, I put the rubber to the road.

Here is the plan:

Warm up at 140-200 watts over 10 minutes. Then do: 3 sets of 5 jumps — 10-12 revs of cranks out of saddle. Do these with hands in drops like a ‘real’ sprint. Goal is to ACCELERATE CRANKARMS QUICKLY and to a final cadence of 135 rpm’s or more. 1 minute between jumps, 5 minutes between sets. Max power not a goal here; leg speed is goal!

THEN do 4 X 10 second all-out sprints choosing a target line for each one. Focus on selecting the correct gear where you are not spun out at the target line yet spinning a high cadence. 5 minutes between each of these. Cool down for balance of duration.

As I warmed up, I headed toward a long stretch of road I knew to be nice and smooth with little traffic. I figured I could get the work done by going back and forth on this road and then head home. I didn’t want to get too far out there.

The first part of the test was simple enough. On the trainer, I had been able to do these jumps and hit a max cadence over 200 rpm. As I attempted them on the road, I was not able to see the computer face during the jumps and was guessing I was hitting 140 rpms. Of course, the WKO+ report would give me the low down.

The second part of the workout was a little harder to do. It wasn’t really that it was hard physically, but it was hard to properly execute. It entailed 1) finding the proper gear, 2) pedaling for at least 10 seconds, and 3) sprinting toward a line.

I played around with 1 during the five attempts I made. 2 and 3 I just hoped I was getting it right. However, right away I knew I was messing up. The goal of the day was leg speed – not power. Being afraid that I would spin out in the sprint, I moved to the big ring. Unfortunately, this caused me to see only numbers like 115 to 130 rpms when I looked down.

WKO+ leg speed workout graph (click to enlarge)

WKO+ leg speed workout graph (click to enlarge)

Well, I would just wait to see the report from my coach. Here is what he said:

Jumps are excellent with max cadences of 140+-170+ rpm’s.  One is even in the 180′s; so high that I took a closer look at the ‘raw data’ file to be sure meter is reading right.  I think it is!  Mission accomplished on the jumps indeed.

That made me happy.  Looking at the numbers I see my lowest was 155 rpm and my highest was 188 rpm. The higher rpms came toward the end of the workout as I started getting comfortable doing the efforts on the road rather than the trainer.

My power efforts during this time weren’t that bad. All of them were over 1000 watts (and I wasn’t supposed to be trying for wattage). All in all, I am happy with that portion of the workout.

Now for the second part that I was more nervous about…

Sprints – #3 of the five sprints is most like what I was looking for here; that is, ‘…not spun out and spinning a high cadence’.  The other four are a lower cadence than you’re capable of.  That said, you will improve at this as you’ve never trained nuero-muscularly before.

Hindsight is key here; knowing what gear to pick.  And even the big sprinters get this wrong at times.  Let today be a learning process.  I’d like to see you sprinting at +-1300 watts and a max cadence of 150 rpm’.  Zoom in on each sprint and see max cadence as a comparison to this thought.  Mind you, your wattages are all over 1000 in these sprints where the focus is NOT on power.  Very encouraging nonetheless.  All make sense?

Yeah, that is what I figured. So, I went to compare the five attempts in WKO+. The below chart is a Mult-File/Range Analysis. At the bottom of the chart there is a listing of the various ranges where you can compare the details of each attempt.

Multi-File/Range Analysis

Multi-File/Range Analysis

I see I got my max power on the first one at 1300 watts. Obviously, I was going with too big of a gear at that point. My max cadence came on the third one with an rpm of 145. Looks like this was the only successful attempt out of five! Interesting that though it was my lowest wattage output at 1099 it was my second highest max speed.

Two final graphs to look at from TrainingPeaks WKO+ 3.0. Here you can see the above attempts compared to each other according to power and cadence. You can see a dotted line going through each. That is the target for all the attempts.

Cadence Comparison

Cadence Comparison

The colors of the lines correspond to the color boxes to the left of each attempt as shown in the MFRA chart above. The below chart shows the same comparison according to power output. The dotted line shows the average the five sprints.

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Power Comparison

I did this little exercise to give you an idea of how my coach and I use the WKO+ software when reviewing my workouts. We are able to do this from anywhere. He is able to use the WKO+ as a teaching tool — kind of like a visual aid — to help me understand what he is telling me.

I now have something to aim for in my future attempts. I want to replicate that third sprint as much as possible. One thing this tells me is that I need to take better mental notes about things such as gearing and technique.