*Know and understand in detail how to administer a submaximal leg (bicycle) ergometer test as well as calculate and interpret the results of a submaximal leg (bicycle) ergometer test.
PROTOCOL
(1) set seat height to achieve almost full leg extension on the pedal downstroke and then have the subject establish a pedaling cadence of 50 rpm against "0" kg workload
(2) at 50 rpm pedal against an initial resistance load for 2 minutes (2 minute work periods)
-for larger or more highly fit/trained individuals, the initial resistance or workload should be 1 kg or 300 kgm/min (300kgm = 50 rpm x 6m x 1kg)
-for smaller, less fit/trained or older individuals, the initial resistance or workload should be 0.5 kg or 150 kgm/min (150 kgm = 50 rpm x 6m x 0.5 kg)
(3) take the heart rate during the last 30 seconds of the intial workload
- -heart rate must be greater than or equal to 70% of PHR_{max}
- -record the heart rate during the last 30 seconds of the last two minutes at this final, steady-state, workload
-average the final two heart rates recorded during the last 30 seconds of the last two minutes
-the average of the final two heart rates is the steady-state heart rate at the final steady-state workload
-final workload is 4 minutes
(4) note the final steady-state workload and steady-state heart rate, then allow the subject to cool-down against "0" kg of resistance or workload as needed
(5) calculation of maximal oxygen uptake rate (VO
_{2} Max)
- using the final workload and average steady-state heart rate values, find the preliminary VO
_{2} Max in L/min from the conversion tables (i.e., males on 8-4 and females on 8-5)
-using the preliminary VO
_{2} Max, adjust the value based on the subject's age. In order to adjust for age, multiple the preliminary VO
_{2} Max by the correction factor for listed
- using VO
_{2} Max in L/min and body weight (BW), convert VO
_{2} Max in L/min to ml/kg/min.
- BW in KG = BW in lb divided by 2.2046
- VO
_{2} Max in ml/min = VO
_{2} Max in L/min multiplied by 1000
- VO
_{2} max in ml/kg/min = VO
_{2} Max in ml/min divided by BW in KG
(6) evaluate and classify cardiorespiratory endurance fitness level based on maximal oxygen uptake rate expressed in ml/kg/min using table on 8-3