The usual course of events when a novice cyclist buys a Turbo Trainer is; they buy a HRM at the same time. They load their bike on the machine and go riding off until their HR is 85ish % of 220 – age, CV region.
After 5 boring minutes, they decide to “sod this, I’m going to LT” so they up the HR to 95ish % of 220 – age.
Doing this, an unfit individual will get adrenaline after 15 – 20 minutes of pedalling. Mediocre fitness chaps and chapesses will get adrenaline before half an hour.
When this happens, pedalling becomes a bit less painful.
Before the bike even goes on the Turbo Trainer, do some testing or look on the manufacturer’s website for a realistic kW vs kmh curve for the bike. Plot a chart and pick some speeds like 10, 13, 16, 19, 22 and 25 kmh.
Put the bike’s computer magnet and pick up on the driven wheel.
Weigh yourself.
Put the bike on the Turbo Trainer, take a few deep breaths and ride at the 6 speeds for 2 minutes each, noting down your HR at the end of each two minute cruise.
ALWAYS using the same curve, with the estimate for Watts ( this is a COMPARATIVE test, not ABSOLUTE ), your HR and your mass, you can estimate your VO2 max.
Use this test as a ‘Warm up’ for Turbo Trainer sessions.
The second test is a 20 minute ‘balls out blast’ to ride as far ( by the computer’s trip ) as you can.
Get an average speed for the 20 minute blast, estimate the Wattage you pedalled at and multiply this by 0.95.
This will be your Functional Threshold Power by using a simple £150 set-up instead of spending £1000 on a CycleOps PowerBeam.
The results are comparative, so if you use the same curve, the same bike and the same procedure, you can see your improvement over the coming weeks.