Join Date: Jan 2006
Location: Cleveland, OH
Bikes: Kestrel talon sl, Specialized Tarmac SL, Paket tandem, Co-Motion Robusta tandem, Burley Paso Doble tandem with child stoker kit
Power output during single and tandem cycling
As some of you may know, we have a laboratory tandem that is capable of measuring the power output of the captain and stoker individually. We have used it for an exercise intervention for Parkinson's patients.
The recent thread regarding 'are tandems faster than singles' got me thinking that we can address this issue, at least from a power standpoint with our tandem. I am planning to make couple modifications to our lab tandem to make it road worthy and conduct some testing. What do you think of the following protocol:
8-10 experienced tandem teams (e.g. annual miles >1000)
two conditions on the same date (randomized); 20-30 minute rest between conditions.
1) three mile time trial on instrumented tandem (periscope so we should be able to accommodate most teams)...maximum effort
2) individual three mile TT on single bike with powertap or SRM
Primary outcomes: average and maximum watts for each rider under each test condition, total watts during tandem compared to summed individual efforts (e.g. test the social loafing hypothesis), average cadence, maximum cadence and time and speed measures. No heart rate monitoring as we have not found reliable methods to dissociate capt and stoker that interface with SRM units.
Maximum efforts are always difficult to get from subjects, we would likely use a financial incentive for the top times for individuals and teams.
thoughts, since this is a side project not directly related to my research.