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      Comparison of a modified double poling ergometer for cross country skiers with disabilities

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      Date
      2007
      Author
      Forbes, Scott Chapman
      Type
      Thesis
      Degree Level
      Masters
      Metadata
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      Abstract
      The purpose of this study was to compare physiological variables (i.e. oxygen consumption, blood lactate, heart rate, respiratory exchange ratio) during exercise on a double poling ergometer modified for sit skiers to a field test for the same skiers. Three male and four female athletes from the Canadian National / Developmental team (17-54 years of age, ranging in ability from a complete T7 spinal injury to cerebral palsy) completed a field test and a double poling ergometer protocol separated by at least 24 hours. Both protocols consisted of three maximal sets of skiing of three minutes duration per set separated by approximately one and a half minutes rest. A wireless metabolic system (Sensormedics, VmaxST or Cosmed, K4b2) and heart rate monitor were used to measure physiological responses during each test. Arterialized blood lactate was measured before and after each set and for 15 minutes post exercise. There were no significant differences between the field and ergometer tests for peak oxygen consumption (VO2 peak) (field=35±6 mL/kg/min vs. ergometer=33±7 mL/kg/min; p=0.491). However, significantly higher peak heart rate (field=173±5 bpm vs. ergometer=178±4 bpm; p=0.046) and respiratory exchange ratio (RER) (field=1.2±0.1 vs. ergometer=1.4±0.1; p=0.022) were found during the double poling ergometer protocol. There were no significant differences in blood lactate at baseline and after set one between protocols. However, a significantly higher lactate was found after set two (field=7±4 mmol/L vs. ergometer=12±5 mmol/L; p
      Degree
      Master of Science (M.Sc.)
      Department
      College of Kinesiology
      Program
      College of Kinesiology
      Supervisor
      Chilibeck, Philip D.
      Committee
      Dal Bello-Haas, Vanina; Baxter-Jones, Adam D. G.; Drinkwater, Donald T.
      Copyright Date
      2007
      URI
      http://hdl.handle.net/10388/etd-09262007-083500
      Subject
      Oxygen Consumption
      Exercise
      Collections
      • Graduate Theses and Dissertations
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