Cardiorespiratory Coordination in Acute Hypoxia in Runners

Кривощеков, С. Г.; Uryumtsev, D. Yu.; Gultyaeva, V. V.; Зинченко, М. И.

doi:10.1134/s0362119721030087

Cited by 3 publications

(1 citation statement)

References 19 publications

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“…Moreover, it has been suggested that the inability of the cardiorespiratory system to control and regulate its function is due to circular causality between VE, FeCO 2 , FeO 2 , and HR [ 95 ]. In addition, the importance of forming a PC 1 due to FeCO 2 and FeO 2 in respect to CRC was also documented in runners under normoxia condition [ 96 ].…”

Section: Discussionmentioning

confidence: 99%

Cardiorespiratory Coordination in Collegiate Rowing: A Network Approach to Cardiorespiratory Exercise Testing

Papadakis

Etchebaster

García‐Retortillo

2022

IJERPH

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Collegiate rowing performance is often assessed by a cardiopulmonary exercise test (CPET). Rowers’ on-water performance involves non-linear dynamic interactions and synergetic reconfigurations of the cardiorespiratory system. Cardiorespiratory coordination (CRC) method measures the co-variation among cardiorespiratory variables. Novice (n = 9) vs. Intermediate (n = 9) rowers’ CRC (H0: Novice CRC = Intermediate CRC; HA: Novice CRC < Intermediate CRC) was evaluated through principal components analysis (PCA). A female NCAA Division II team (N = 18) grouped based on their off-water performance on 6000 m time trial. Rowers completed a customized CPET to exhaustion and a variety of cardiorespiratory values were recorded. The number of principal components (PCs) and respective PC eigenvalues per group were computed on SPSS vs28. Intermediate (77%) and Novice (33%) groups showed one PC1. Novice group formed an added PC2 due to the shift of expired fraction of oxygen or, alternatively, heart rate/ventilation, from the PC1 cluster of examined variables. Intermediate rowers presented a higher degree of CRC, possible due to their increased ability to utilize the bicarbonate buffering system during the CPET. CRC may be an alternative measure to assess aerobic fitness providing insights to the complex cardiorespiratory interactions involved in rowing during a CPET.

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Section: Discussionmentioning

confidence: 99%

Cardiorespiratory Coordination in Collegiate Rowing: A Network Approach to Cardiorespiratory Exercise Testing

Papadakis

Etchebaster

García‐Retortillo

2022

IJERPH

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Physiological Features of the Response of the Respiratory and Circulation Systems to Physical Load in Students Engaged in Winter Soccer

Kapilevich,

Ilyin,

Jiao

et al. 2024

Hum Physiol

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Physiological Features of the Response of the Respiratory and Circulation Systems to Physical Load in Students Engaged in Winter Football

Kapilevich,

Ilyin,

Jiao

et al. 2024

Fiziologiâ čeloveka

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Adaptive changes in the circulatory and respiratory systems under the influence of winter football training were studied. 50 men aged 21-25 years — 3rd-4th year students — were examined: control group — 25 people specializing in “soccer” (S), main group — 25 people studying in the specialization “winter football” (WF). The examination was performed twice — before and after physical activity. Running (average pace, 180 steps/min) for 15 minutes was used as dosed physical activity. The loads were performed either indoors at a temperature of plus 22–24°C, or in winter outside at a temperature of minus 18–20°C. Indoor and outdoor surveys were carried out on different days. Assessment of peripheral blood flow in the lower extremities was performed using rheography; to assess the main blood flow in the femoral artery, Doppler ultrasound was used. The study of external respiration functions was carried out using pneumotachography. The lactate concentration in capillary blood was determined photometrically. It has been shown that physical activity performed in the cold in adapted athletes (WF group) promotes increased integration between the respiratory and circulatory systems, ensuring the formation of a functional system characterized by stronger connections for optimal adaptation to the combined effects of physical activity and cold. In athletes training indoors (group S) under conditions of a combination of physical activity and cold exposure, on the contrary, desynchronization of the interaction of the respiratory and circulatory systems occurs, which leads to a decrease in adaptive reserves. Thus, sports training in winter football triggers phenotypic adaptive changes and creates a number of physiological mechanisms that promote increased integration between the respiratory and circulatory systems, providing optimal adaptation to the combined effects of physical activity and cold. The obtained facts will be useful for the development of special training programs aimed at increasing the functional reserve of the cardiorespiratory system of athletes training in cold conditions.

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Cardiorespiratory Coordination in Acute Hypoxia in Runners

Cited by 3 publications

References 19 publications

Cardiorespiratory Coordination in Collegiate Rowing: A Network Approach to Cardiorespiratory Exercise Testing

Cardiorespiratory Coordination in Collegiate Rowing: A Network Approach to Cardiorespiratory Exercise Testing

Physiological Features of the Response of the Respiratory and Circulation Systems to Physical Load in Students Engaged in Winter Soccer

Physiological Features of the Response of the Respiratory and Circulation Systems to Physical Load in Students Engaged in Winter Football

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