Table 2 Physiological and perceptual responses during cycling endurance test pre and post respiratory muscle endurance training (RMET), inspiratory muscle resistive training (IMT) and SHAM training.

From: Similar effects on exercise performance following different respiratory muscle training programs in healthy young men

 

RMET

IMT

SHAM

Mean values

 \({\dot{\text{V}}}\)E (l∙min−1)

  Pre

139.0 (28.7)

148.9 (23.4)

140.0 (22.5)

  Post

138.7 (30.4)

142.6 (25.0)

135.3 (24.5)

 VT (l)

  Pre

3.0 (0.5)

3.1 (0.8)

2.8 (0.7)

  Post

3.4 (0.5)†††

3.3 (1.0)†††

3.1 (0.7)†††

  fB (breaths min−1)

  Pre

47 (8)

51 (17)

54 (17)

  Post

41 (9)†††

48 (18)†††

46 (14)†††

 \({\dot{\text{V}}}\)O2 (ml∙min−1)

  Pre

3520 (622)

3538 (577)

3290 (509)

  Post

3654 (543)

3558 (678)

3351 (497)

 \({\dot{\text{V}}}\)CO2 (ml∙min−1)

  Pre

3481 (590)

3688 (507)

3381 (511)

  Post

3668 (565)

3660 (672)*

3415 (466)

 PETCO2 (mmHg)

  Pre

30.4 (2.2)

30.3 (4.6)

28.8 (2.9)

  Post

31.8 (2.3)†††

31.5 (5.0)†††

30.4 (2.9)†††

 HR (bpm)

  Pre

167 (10)

167 (12)

172 (9)

  Post

169 (10)

166 (12)

170 (9)

 Blood Lactate Concentration (mmol∙l−1)

  Pre

8.9 (1.9)

10.5 (1.5)

9.9 (1.8)

  Post

9.0 (2.3)

9.7 (1.9)

9.8 (1.8)

 Breathlessness (points)

  Pre

1.4 (2.4)

0.5 (0.6)

2.0 (1.9)

  Post

0.4 (0.7)

0.6 (0.9)

1.9 (2.4)

 Resp. Exertion (points)

  Pre

4.9 (2.0)

5.0 (2.3)

6.7 (1.8)

  Post

3.7 (1.6)

4.1 (2.2)

5.7 (2.0)

 Leg Exertion (points)

  Pre

5.9 (1.2)

5.9 (2.0)

6.2 (2.1)

  Post

5.8 (1.7)

5.7 (2.4)

6.2 (1.0)

End Part 1 (isotime)

 HR (bpm)

  Pre

178 (9)

178 (12)

183 (9)

  Post

179 (9)

176 (12)

181 (9)

 Blood Lactate Concentration (mmol∙l−1)

  Pre

11.0 (2.6)

12.8 (2.3)

12.0 (2.1)

  Post

10.9 (2.8)

12.0 (2.4)

11.9 (2.2)

 Breathlessness (points)

  Pre

2.5 (3.8)

1.7 (3.0)

5.1 (3.8)

  Post

1.1 (1.9)

1.1 (1.7)

3.0 (3.5)

 Respiratory Exertion (points)

  Pre

8.1 (2.0)

7.7 (2.8)

9.0 (1.6)

  Post

6.6 (2.4)

6.2 (3.2)

8.4 (2.5)

 Leg Exertion (points)

  Pre

9.6 (0.6)

8.6 (1.7)

8.6 (1.7)

  Post

8.3 (1.3)

8.1 (2.2)

7.6 (2.3)

  1. As indicated, data presented are either the mean values of the equal time cycled during the pre- and post- assessments or the values collected at the end of the first cycling bout (isotime). Values are mean (SD). \({\dot{\text{V}}}\)E, pulmonary ventilation; VT, tidal volume; fB, breathing frequency; \({\dot{\text{V}}}\)O2, oxygen uptake; \({\dot{\text{V}}}\)CO2, carbon dioxide output; PETCO2, pressure of end tidal CO2; HR, heart rate. main effect for time (p < 0.05, ††p < 0.01, †††p < 0.001); *different from before training (p < 0.05).