Exercise Testing in Laryngectomized Patients | 223 9 Table 3. Median values at the end of CPET Regular resistance Lower resistance (0.15 hPa) Total group N=10 0.6 hPa N=8 0.3 hPa N=2 Total group N=10 Usual 0.6 hPa N=8 Usual 0.3 hPa N=2 Time in Test (seconds) 1000 1006 930 999 1000 916 Wpeak (Watts) 141.2 148.1 101.0 129.7 136.2 90.0 HR (beats per minute) 138 138 134 133 133 131 VO2peak (L/min) 1.48 1.62 1.04 1.59 1.72 1.14 Relative VO2peak (ml/kg/min) 20.4 21.4 15.7 20.6 21.9 15.8 VE peak (L/min) 57.1 61.2 42.0 53.0 56.2 45.0 RER 1.05 1.10 0.85 1.00 1.05 0.91 Anaerobic threshold* ( VO2/kg) N=7 12.4 N=6 12.0 N=1 17.6 N=7 12.0 N=6 11.4 N=1 13.6 VE/VCO2 at anaerobic threshold 32.4 31.9 38.7 33.2 32.4 34.2 Borg-Score Min score 6; low effort – max 20; high effort) 15.0 15 16.0 14 14 16.5 All scores are medians. Total group scores are displayed in bold. Individual scores and therefore ranges can be found in Table 4. *Anaerobic threshold was not reached by 1 subject and could not be determined in two subjects (see table 4 for details). Abbreviations: maximum workload (Wpeak), heart rate (HR), maximum oxygen consumption (VO2 peak), CO2 production (VCO2), respiratory exchange ratio (RER), and minute ventilation/carbon dioxide production at anaerobic threshold (VE/VCO2). Wpeak and VO2peak related to resistance level Figure 3 shows the comparisons of individual results per test. As can be seen from the graphs, patients performed quite similarly in both tests, regardless of HME worn. The results for Peak oxygen consumption (VO2peak, graph 1B) show more variability between the two resistances compared to other outcomes, but are still quite similar and within limits of regular test-retest variability29.
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