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IF ON JOULE 2.0

jelmermdjelmermd
in General Training Discussions

 Kinda new with this power.  Have used Garmin 310 but trying to convert to Joule.  Is there any way to set the Joule Dashboard to display realtime IF, or only the cumuluative IF for that workout?  Does everyone just calculate the percentage FTP watts for that particular workout and follow that, or can you display the IF?   Thanks for your help...

Comments

  • Spokane_AlSpokane_Al
    James, you can definitely display IF on your Joule. It is one of many choices of metrics to display. Page 21 of the Joule User Guide provides all of your display options.
  • Al TruscottAl Truscott

    Just to refine Al's instructions. The Joule allows you to see two additional metrics for each of the six main ones you have on the dashboard at any one time, for a total of it. E.g., by toggling (moving the center stick) the shaded area over the "IF" number, real time (total) NP and TSS are displayed in small numerals at the bottom. Or you can switch thru them on the main dashboard by pressing down BRIEFLY on the stick. 

  • jelmermdjelmermd
    @all: thanks for your responses. I tried displaying the IF but realized that it is showing a cumulative IF over the ride and not a realtime value. I haven't figured out the usefulness of that calculation mid-ride as opposed to looking at the data after. I'm still trying to figure out the best display options as there are obviously a lot. I did change the Joule to display only 4 items in deference to my 55 year old near vision issues, and that helped a lot. My current display shows 1. Watts 2. Time/miles/Kj 3. Cadence (working at trying to keep my cadence up) 4. Heart Rate.
    I'm still trying to decide if I should race with the Joule or the Garmin 310 (on the bike, still will use 310 on the run) or even carry both. I'm an old pilot who appreciates redundancy! I have a mount on the forward aerobars with attachments for both. I have had a couple of occasions where the Garmin froze, and would not be happy if that happened at mile 30. I have the Garmin cycling rapidly through several screens all of which have a prominent WATTS on the top and I can follow data somewhat easier, but I am just learning the Joule.
  • Al TruscottAl Truscott

     Real Time IF> Coach Rich notes that he carries in his head a few numbers which provide a Watts/IF equivilency. For a hypothetical FTP of 200, say, 140=0.7, 150=0.75, 160=0.8, etc.That's his "real-time IF." No cycle comuter willdo that (yet), so we have to rely on the ol' noggin.

    Joule display: There have been several threads about this, and whie there is some personal preference involved, most people seem to want current watts, IF/NP/TSS, ride time/distance. HR and cadence are other popular choices. To those, I add Elevation/%grade. Many people avoid having the ability to show speed, as that is not a metric we are using to monitor our performance.

    So my display shows:

    Watts                     HR

    % grade                IF

    Ride time              Cadence

    Also, many people here are routinely using the "Interval" function to help better understand their current IF. This thread may help you understand how to do that, and why.

  • Coach RichCoach Rich

    Not sure what your question is about "real time IF?"

    For racing I will have either in my head or taped to my aerobars:

    • My goal IF and PNorm for each hour of the bike, and goal IF, Pnorm and Pavg for the ride. However, I'll create an interval every 30' vs 60'. I did this during the IMWI camp and it worked great. See below.
    • My wattage gears: 1st hour, goal watts, short hills and long hills. Personally, I'll probably keep it simple and just have one "do not go above" number.

    Then while riding, I'll jump on the bike and wake up the Joule.

    • After a minute or two I'll press the interval button once, quickly. This starts to record an interval in the background, my first 30' interval.
    • I'll then press and hold the interval button. This makes the Joule display the data for the current interval. The IF on the display, in this case, I think is the "real time IF" you're asking about? It's the IF and Pnorm for that interval and I'm referencing the by-the-hour numbers I've taped to my bars above.

    Then as I ride each 30' interval, I have my goal Pnorm and IF for the interval, I have my wattage gears, and my do-not-go-above number. I just ride the bike and dial in the effort I need/want on each terrain feature. The rest pretty much takes care of itself.

    From time to time I'll press and hold again the interval button. This doesn't end the current interval but instead toggles the display over to the cummulative ride data: IF, Pnorm, time, distance, KJ, etc for the ride. I'll check this out at mile 56 and at other times, just to give me something to do and because I'm just curious.

    My display is set up as:

    Current watts      Normalized watts   ---> I like having these next to each other as current watts is what drives Pnorm up or down.

    Cadence             IF  --> Cadence under current watts because I'm always searching for the cadence that gives me the best watts. IF under normalized watts because IF is the result of normalized watts. So, the relation I'm looking at is current watts drives normalized watts drives IF so I have them all close together.

    Ride time            Speed --> time so know when the 30' interval ends. Speed to tell me when I have permission to come out of the bars and climb in the hoods. I also like to small position changes (turtle my head, etc) and see the resultant speed changes.

    Distance             KJ 

    When I toggle the display over the cummulative data for the ride, I'll check out my Pnorm, Pavg, IF, and average speed for the ride.

    • I have goals for Pnorm and Pavg, based on some pace modeling I've done with Matts IF/TSS spreadsheet.
    • Pnorm/Pavg = VI. While I can't do that math in my head, I do have a goal Pavg based on my goal Pnorm and goal VI of 1.03-1.04. Gives me a good enough idea of how steady I'm riding
    • Avg speed and my 56 mile split: gives me an idea of my finishing bike split. While IM is a solo time trial...I am definitely racing IMWI. I may make some decisions in the last 60-90' of the bike.
  • Dave BarrDave Barr

    Thanks for the explanation Rich.  I've wondered about a better way to utilize the Joule on race day and this seems very solid.  I think I'll play with this on my ride this weekend.

  • jelmermdjelmermd
    @Al & Rich: thanks for the great clinics on the Joule!
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