Table 2.
HR, respiratory measures, and TEE at rest and during continuous progressive voluntary arm ergometry for paraplegic subjects
| Variable | Rest | Stage 1 | Stage 2 | Stage 3 | Stage 4 | Stage 5 | Stage 6 | Stage 7 |
|---|---|---|---|---|---|---|---|---|
| n | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 5 |
| Power output range (W) | — | 0–0 | 5–10 | 10–20 | 15–35 | 20–45 | 30–60 | 40–70 |
| Power output (W) | — | 0 ± 0 | 6 ± 2 | 14 ± 4 | 24 ± 7 | 32 ± 8 | 43 ± 11 | 56 ± 13 |
| HR (beats/minute) | 77 ± 8 | 84 ± 6 | 94 ± 7 | 97 ± 8 | 105 ± 11 | 113 ± 12 | 127 ± 17 | 134 ± 19 |
| VO2 (ml/kg/minute) | 3.4 ± 0.6 | 4.9 ± 1.0 | 6.9 ± 1.6 | 7.7 ± 1.5 | 9.6 ± 1.9 | 11.1 ± 2.0 | 13.4 ± 2.8 | 15.0 ± 3.1 |
| VO2peak (%) | 20.4 ± 4.3 | 29.7 ± 6.8 | 41.1 ± 8.8 | 46.3 ± 8.0 | 58.2 ± 13.1 | 67.6 ± 14.5 | 75.0 ± 13.1 | 81.2 ± 12.9 |
| VCO2 (ml/kg/minute) | 2.9 ± 0.6 | 4.2 ± 1.1 | 6.1 ± 1.9 | 7.1 ± 1.7 | 9.4 ± 2.1 | 11.6 ± 2.9 | 14.8 ± 4.1 | 16.6 ± 4.2 |
| RER | 0.87 ± 0.06 | 0.85 ± 0.07 | 0.88 ± 0.06 | 0.91 ± 0.06 | 0.97 ± 0.06 | 1.03 ± 0.09 | 1.09 ± 0.09 | 1.09 ± 0.06 |
| EE (kcal/minute) | 1.42 ± 0.32 | 2.03 ± 0.32 | 2.85 ± 0.47 | 3.26 ± 0.58 | 4.14 ± 0.80 | — | — | — |
Values are mean ± SD; n = 10 subjects. Significant main effect of intensity for all variables (RER stages 4–7 > all previous) (P < 0.001).
W, power output; VO2, oxygen consumption; VCO2, carbon dioxide production; RER, respiratory exchange ratio; EE, energy expenditure.