Table 2. Cardiorespiratory and metabolic data recorded at the intensity of the lactate threshold (LT1) in the incremental HS test and the constant-load test in the study participants (n=24). Data are means (±SD).
| Variable |
IRT at LT1 |
Mean recorded in the CLT |
T |
P |
% of IRT value |
Maximum recorded in the CLT |
T |
P |
% of IRT value |
| Lactate (mmol·L-1) |
4.58 (1.50) |
3.26 (.83) |
-5.09 |
.000 |
71.2 % |
3.45 (.70) (S18) |
-4.208 |
.000 |
75.3% |
| HR (bpm) |
144(16) |
144(18) |
-0.45 |
.964 |
100.1% |
150(19) (S21) |
1.586 |
.126 |
104.3% |
| VO2 (L·min-1) |
2.06 (.34) |
1.59 (.20) |
-8.99 |
.000 |
77.5 % |
1.66 (.30) (S21) |
-7.513 |
.000 |
80% |
| VCO2 (L·min-1) |
1.84 (.34) |
1.47 (.20) |
-5.84 |
.000 |
79.7 % |
1.52 (.20) (S21) |
-5.193 |
.000 |
82.4 % |
| VE (L·min-1) |
52.72 (11.94) |
42.75 (6.70) |
-5.25 |
.000 |
81 % |
45.60 (7.30) (S21) |
-3.629 |
.001 |
86.5 % |
| RER |
.91 (.07) |
.93 (.04) |
1.37 |
.184 |
102.2 % |
.95 (.05) (S6) |
2.476 |
.021 |
104.2 % |
| VE·VO2-1 (L·min-1) |
25.98 (2.83) |
27.39 (2.06) * |
2.87 |
.009 |
105.4 % |
28.00 (2.10) (S21) |
3.825 |
.001 |
107.8 % |
| VE·VCO2-1 (L·min-1) |
28.56 (1.81) |
29.39 (2.04) |
1.86 |
.076 |
102.9% |
30.00 (2.00) (S21) |
2.953 |
.007 |
105 % |
| Kilograms |
49.9 (16.15 ) |
|
|
|
|
|
|
|
|
IRT = incremental resistance test; CLT = constant load test; HR = heart rate; VO
2 = oxygen consumption; VCO
2 = carbon dioxide production; VE = minute ventilation; RER = respiratory exchange ratio; VE·VO
2-1 = ventilatory equivalent for O
2; VE·VCO
2-1 = ventilatory equivalent for CO
2; bpm = beats per minute; L = liters, min = minute; S6 = Set 6; S18 = Set 18; S21 = S21.
