caa a22 4500 467941297 CHVBK 20180406153013.0 cr unu---uuuuu 170328e20060301xx s 000 0 eng 10.1007/s00421-005-0101-9 doi (NATIONALLICENCE)springer-10.1007/s00421-005-0101-9 Reproducibility of relationships between human ventilation, its components and oesophageal temperature during incremental exercise [Elektronische Daten] [A. Sancheti, M. D. White] For human exercise at intensities greater than ~70 to 85% of maximal levels of exertion, ventilation (V E) increases proportionately to core temperature (T C) following distinct T C thresholds. This suggested T C in humans could be a modulator of exercise-induced ventilation. This study tested the reproducibility of relationships between oesophageal temperature (T oes), ventilation and its components during incremental exercise. On two nonconsecutive days, at an ambient temperature of 22.1±0.3°C and RH of 45±5%, seven untrained adult males of normal physique pedaled on a seated cycle ergometer in an incremental exercise protocol from rest to the point of exhaustion. In each exercise session, ventilatory equivalents for oxygen consumption $$(V_{\text{E}} \cdot {V_{\text{O}_{\text{2}}}} ^{ - 1}) $$ and carbon dioxide production $$(V_{\text{E}} \cdot {V_{\text{CO}_{\text{2}}}} ^{ - 1}) $$ plus the components of V E, tidal volume (V T) and frequency of respiration (ƒ), were expressed as a function of T oes. Results indicated the reproducibility criteria of Bland and Altman were met for the relationships between T oes and both $$V_{\text{E}} \cdot {V_{\text{O}_{\text{2}}}} ^{ - 1} $$ and $$V_{\text{E}} \cdot {V_{\text{CO}_{\text{2}}}} ^{ - 1} $$ as well as for relationships between T oes and each of V T and f. Intraclass correlation coefficients (R) for between-trial T oes thresholds for $$V_{\text{E}} \cdot {V_{\text{O}_{\text{2}}}} ^{ - 1} $$ (R=0.91, P<0.05) and $$V_{\text{E}} \cdot {V_{\text{CO}_{\text{2}}}} ^{ - 1} $$ (R=0.88, P<0.05) were also high and significant. In both trials, after T oes increased by ~0.3°C, V T demonstrated a distinct plateau point at a reproducible T oes (R=0.93, P<0.05) and ƒ demonstrated a distinct and reproducible T oes threshold (R=0.84, P<0.05). In conclusion, the results illustrate that for humans, ventilation has a significant and reproducible relationship with core temperature during incremental exercise. Springer-Verlag, 2005 Frequency of respiration nationallicence Hyperpnea nationallicence Hyperthermia nationallicence Panting nationallicence Tachypnea nationallicence Temperature regulation nationallicence Tidal volume nationallicence Work nationallicence Sancheti A. School of Human Kinetics and Recreation, Memorial University, St. John's, NL, Canada aut White M. D. School of Kinesiology, Simon Fraser University, V5A 1S6, Burnaby, BC, Canada aut European Journal of Applied Physiology Springer-Verlag 96/5(2006-03-01), 495-504 1439-6319 96:5<495 2006 96 421 https://doi.org/10.1007/s00421-005-0101-9 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00421-005-0101-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sancheti A. School of Human Kinetics and Recreation, Memorial University, St. John's, NL, Canada aut NATIONALLICENCE 700 1- White M. D. School of Kinesiology, Simon Fraser University, V5A 1S6, Burnaby, BC, Canada aut NATIONALLICENCE 773 0- European Journal of Applied Physiology Springer-Verlag 96/5(2006-03-01), 495-504 1439-6319 96:5<495 2006 96 421 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer