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If Carla (63 kg) wants to burn 250 kcals by cycling 80 rpm’s against 1.5 kp of resistance, how long will she need to cycle? According to MET values would this be a Light, Moderate, or Hard activity?

If Carla (63 kg) wants to burn 250 kcals by cycling 80 rpm’s against 1.5 kp of resistance, how long will she need to cycle? According to MET values would this be a Light, Moderate, or Hard activity?

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If Carla (63 kg) wants to burn 250 kcals by cycling 80 rpm’s against 1.5 kp of resistance, how long will she need to cycle? According to MET values would this be a Light, Moderate, or Hard activity?
CYCLE EXAMPLES Cycle ergometry problems always assume using a standard Monark cycle with 6m/rev flywheel and MUST specify the weight of the subject 300 kpm/min; 70 kg subject VO2 = 3.5 ml/kg/min*70kg +0+ 2.0ml/kpm * 300 kpm/min = 245 ml/min + 600 ml/min = 845 ml/min (absolute terms) or 845/70kg = 12.07 ml/kg/min (relative terms) 100 Watts; 50 kg subject * VO2 = 3.5 ml/kg/min*50kg + 0 + (2.0ml/kpm * 100 Watts 6 kpm/min/Watt) = = 175 ml/min + 1200 ml/min = 1375 ml/min (absolute terms) or 1375/50kg = 27.5 ml/kg/min (relative terms) OTHER CALUCLATIONS MET Values: Classifications 1 MET = 3.5 ml/kg/min LIGHT Activity MODERATE Activity MET <3.0 MET 3.0-6.0 MET Activity > 6.0 MET HARD Using Walking example (3.0 mph, 5% grade) VO2 = 18.7 ml/kg/min METS = 18.7/3.5 = 5.34 METs, thus MODERATE
Transcribed Image Text:CYCLE EXAMPLES Cycle ergometry problems always assume using a standard Monark cycle with 6m/rev flywheel and MUST specify the weight of the subject 300 kpm/min; 70 kg subject VO2 = 3.5 ml/kg/min*70kg +0+ 2.0ml/kpm * 300 kpm/min = 245 ml/min + 600 ml/min = 845 ml/min (absolute terms) or 845/70kg = 12.07 ml/kg/min (relative terms) 100 Watts; 50 kg subject * VO2 = 3.5 ml/kg/min*50kg + 0 + (2.0ml/kpm * 100 Watts 6 kpm/min/Watt) = = 175 ml/min + 1200 ml/min = 1375 ml/min (absolute terms) or 1375/50kg = 27.5 ml/kg/min (relative terms) OTHER CALUCLATIONS MET Values: Classifications 1 MET = 3.5 ml/kg/min LIGHT Activity MODERATE Activity MET <3.0 MET 3.0-6.0 MET Activity > 6.0 MET HARD Using Walking example (3.0 mph, 5% grade) VO2 = 18.7 ml/kg/min METS = 18.7/3.5 = 5.34 METs, thus MODERATE
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