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Table 2 Resting, AT, and peak exercise data including HR, RER, time, \( \dot{\mathrm{V}} \)O2, and \( \dot{\mathrm{V}} \)CO2 along with PFSS

From: Measures of excess \( \dot{\mathrm{V}} \)CO2 and recovery \( \dot{\mathrm{V}} \)CO2 as indices of performance fatigability during exercise: a pilot study

 

Resting

AT

Peak

 

Mean ± SD

Median

Range

HR (bpm)

86 ± 7 (80, 92)

133 ± 12 (122, 144)

188 ± 7 (182, 194)

RER

0.90 ± 0.05 (0.86, 0.94)

0.82 ± 0.02 (0.80, 0.85)

1.20 ± 0.80 (1.13, 1.28)

\( \dot{\mathbf{V}} \)O2 (ml/(kg*min))

4.6 ± 0.7 (3.97, 5.32)

20.9 ± 2.8 (18.3, 23.4)

35.6 ± 4.7 (31.2, 40.0)

\( \dot{\mathbf{V}} \)O2 (ml/min)

345 ± 117 (237, 453)

1594 ± 579 (1059, 2130)

2915 ± 854 (2126, 3705)

\( \dot{\mathbf{V}} \)CO2 (ml/min)

310 ± 106 (212, 409)

1315 ± 483 (868, 1761)

3522 ± 1025 (2575, 4470)

Time (s)

 

223 ± 50 (177, 270)

580 ± 83 (504, 657)

PFSSa

0.98 ± 0.14 (0.86, 1.11)

  
  1. AT Anaerobic threshold, HR Heart rate, RER Respiratory exchange ratio, \( \dot{V} \)O2 Oxygen consumption, \( \dot{V} \)CO2 Expired carbon dioxide, PFSS Performance fatigability severity score
  2. Data presented as mean ± 1 standard deviation unit and (95% confidence interval)
  3. aPerformed following exercise testing