Two Operational Modes of Cardio-Respiratory Coupling Revealed by Pulse-Respiration Quotient
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Due to the fact that respiratory breath-to-breath and cardiac intervals between two successive R peaks (BBI and RRI, respectively) are not temporally concurrent, in a previous paper, we proposed a method to calculate both the integer and non-integer parts of the pulse respiration quotient (PRQ = BBI/RRI = PRQint + b1 + b2), b1 and b2 being parts of the border RRIs for each BBI. In this work, we study the correlations between BBI and PRQ, as well as those between BBI and mean RRI within each BBI (mRRI), on a group of twenty subjects in four conditions: in supine and standing positions, in combination with spontaneous and slow breathing. Results show that the BBI vs. PRQ correlations are positive; whereas the breathing regime had little or no effect on the linear regression slopes, body posture did. Two types of scatter plots were obtained with the BBI vs. mRRI correlations: one showed points aggregated around the concurrent PRQint lines, while the other showed randomly distributed point...s. Five out of six of the proposed aggregation measures confirmed the existence of these two cardio-respiratory coupling regimes. We also used b1 to study the positions of R pulses relative to the respiration onsets and showed that they were more synchronous with sympathetic activation. Overall, this method should be used in different pathological states.
Кључне речи:
cardio-respiratory coupling / cardio-respiratory synchronization / heart rate variability / pulse respiration quotient / slow breathing / sympatho-vagal balanceИзвор:
Bioengineering, 2023, 10, 2, 180-Финансирање / пројекти:
- Ministry for Science, Technological Development and Innovation of the Republic of Serbia [T0302203]
- Innovation Fund of the Republic of Serbia [Project Proof of Concept 5537]
Институција/група
VinčaTY - JOUR AU - Kalauzi, Aleksandar AU - Matić, Zoran AU - Platiša, Mirjana M. AU - Bojić, Tijana PY - 2023 UR - https://vinar.vin.bg.ac.rs/handle/123456789/10708 AB - Due to the fact that respiratory breath-to-breath and cardiac intervals between two successive R peaks (BBI and RRI, respectively) are not temporally concurrent, in a previous paper, we proposed a method to calculate both the integer and non-integer parts of the pulse respiration quotient (PRQ = BBI/RRI = PRQint + b1 + b2), b1 and b2 being parts of the border RRIs for each BBI. In this work, we study the correlations between BBI and PRQ, as well as those between BBI and mean RRI within each BBI (mRRI), on a group of twenty subjects in four conditions: in supine and standing positions, in combination with spontaneous and slow breathing. Results show that the BBI vs. PRQ correlations are positive; whereas the breathing regime had little or no effect on the linear regression slopes, body posture did. Two types of scatter plots were obtained with the BBI vs. mRRI correlations: one showed points aggregated around the concurrent PRQint lines, while the other showed randomly distributed points. Five out of six of the proposed aggregation measures confirmed the existence of these two cardio-respiratory coupling regimes. We also used b1 to study the positions of R pulses relative to the respiration onsets and showed that they were more synchronous with sympathetic activation. Overall, this method should be used in different pathological states. T2 - Bioengineering T1 - Two Operational Modes of Cardio-Respiratory Coupling Revealed by Pulse-Respiration Quotient VL - 10 IS - 2 SP - 180 DO - 10.3390/bioengineering10020180 ER -
@article{ author = "Kalauzi, Aleksandar and Matić, Zoran and Platiša, Mirjana M. and Bojić, Tijana", year = "2023", abstract = "Due to the fact that respiratory breath-to-breath and cardiac intervals between two successive R peaks (BBI and RRI, respectively) are not temporally concurrent, in a previous paper, we proposed a method to calculate both the integer and non-integer parts of the pulse respiration quotient (PRQ = BBI/RRI = PRQint + b1 + b2), b1 and b2 being parts of the border RRIs for each BBI. In this work, we study the correlations between BBI and PRQ, as well as those between BBI and mean RRI within each BBI (mRRI), on a group of twenty subjects in four conditions: in supine and standing positions, in combination with spontaneous and slow breathing. Results show that the BBI vs. PRQ correlations are positive; whereas the breathing regime had little or no effect on the linear regression slopes, body posture did. Two types of scatter plots were obtained with the BBI vs. mRRI correlations: one showed points aggregated around the concurrent PRQint lines, while the other showed randomly distributed points. Five out of six of the proposed aggregation measures confirmed the existence of these two cardio-respiratory coupling regimes. We also used b1 to study the positions of R pulses relative to the respiration onsets and showed that they were more synchronous with sympathetic activation. Overall, this method should be used in different pathological states.", journal = "Bioengineering", title = "Two Operational Modes of Cardio-Respiratory Coupling Revealed by Pulse-Respiration Quotient", volume = "10", number = "2", pages = "180", doi = "10.3390/bioengineering10020180" }
Kalauzi, A., Matić, Z., Platiša, M. M.,& Bojić, T.. (2023). Two Operational Modes of Cardio-Respiratory Coupling Revealed by Pulse-Respiration Quotient. in Bioengineering, 10(2), 180. https://doi.org/10.3390/bioengineering10020180
Kalauzi A, Matić Z, Platiša MM, Bojić T. Two Operational Modes of Cardio-Respiratory Coupling Revealed by Pulse-Respiration Quotient. in Bioengineering. 2023;10(2):180. doi:10.3390/bioengineering10020180 .
Kalauzi, Aleksandar, Matić, Zoran, Platiša, Mirjana M., Bojić, Tijana, "Two Operational Modes of Cardio-Respiratory Coupling Revealed by Pulse-Respiration Quotient" in Bioengineering, 10, no. 2 (2023):180, https://doi.org/10.3390/bioengineering10020180 . .