Multiple baseline approach to predict the heart rate response to simulated diving in young adults

Smolinska, Maria; Malinowski, Krzysztof; Zajączkowski, Stanisław; Wierzba, Tomasz H.

doi:10.1109/esgco.2014.6847592

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…Istotne obniżenie wartości HR doszło w warunkach, kiedy zasymulowano nurkowanie poprzez zanurzenie w zimnej wodzie podczas wstrzymania oddechu: w pierwszych 15 sekundach wartość HR obniżyła się z 108.97 do 81.77, w kolejnych 15 sekundach wartość ta jeszcze bardziej się obniżyła [5]. Co więcej, wyniki badań, w których zastosowano podobną metodę symulacji nurkowania poprzez zanurzenie w zimnej wodzie [6] wykazały początkowy wzrost HR podczas ekspozycji. Reakcja na nurkowanie nie będzie taka sama, kiedy nie dojdzie do wstrzymania oddechu podczas tej czynności [7].…”

Section: Wstępunclassified

“…A significant reduction in HR values was observed when diving was simulated by immersing in cold water with breath held: HR values dropped from 108.97 to 81.77 during first 15 seconds, and decreased even further during the subsequent 15 seconds [5]. Furthermore, results from a study using a similar method to simulate diving by immersion in cold water [6] demonstrated that an initial increase in HR occurs during exposure. However, the physiological reaction to diving is not the same when a diver's breath is not held during the activity [7].…”

Section: Introductionmentioning

confidence: 98%

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Effects of Hyperbaric Exposure on the Cardiovascular System. Role of the Autonomous Nervous System

Kujawski

Słomko

Zawadka‐Kunikowska

et al. 2017

Polish Hyperbaric Research

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Introduction Among experienced divers, dive adaptation is seen as a modified pattern of physiological changes. This is reflected, inter alia, in the change in cardiovascular responses, therefore there is need to examine the role of the autonomic nervous system in cardiovascular response modulation after hyperbaric exposure. Material and methods Ten experienced divers took part in the study. The effects of hyperbaric exposure at 30 and 60 meters and interaction (depth x time) were measured. Changes in HR, RRI, CI and HRV values have been taken into analysis. Results Hyperbaric exposure at 30 meters significantly affected HFnu-RRI elevation and decrease of LFnu-RRI (F = 42.92, p <0.00001), without significant affecting the HR, RRI and CI. Exposure to hyperbaric 60 m increased HR and CI (F = 7.64, p = 0.01 and F = 4.89, p = 0.04 respectively) and RRI (F = 7.69, p = 0.01), without significant impact on other variables. The influence of interaction (depth x time) was significant in all measured variables. Conclusions The results indicate that hyperbaric exposure at 60 meters affected HR, RRI, CI parameters, that were not significantly affected by hyperbaric exposure at 30 meters. On the other hand, the exposure at 30 meters showed a significant effect on the LFnu and HFnu HRV, which were not significantly affected by the exposure at 60 meters. Significant effect of time and depth interaction in each of the analyzed variables was observed.

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Section: Wstępunclassified

Section: Introductionmentioning

confidence: 98%

Effects of Hyperbaric Exposure on the Cardiovascular System. Role of the Autonomous Nervous System

Kujawski

Słomko

Zawadka‐Kunikowska

et al. 2017

Polish Hyperbaric Research

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“…The HR can be described as the mean RRi over the particular time. Additionally, minimum and maximum HR can be evaluated, which corresponds to the longest and shortest RRi [ 16 ].…”

Section: Introductionmentioning

confidence: 99%

Resting Heart Rate Affects Heart Response to Cold-Water Face Immersion Associated with Apnea

Malinowski

Wierzba

Neary

et al. 2023

Biology

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The regular cardiac response to immersion of the face in cold water is reduction in heart rate (HR). The highly individualized and unpredictable course of the cardiodepressive response prompted us to investigate the relationship between the cardiac response to face immersion and the resting HR. The research was conducted with 65 healthy volunteers (37 women and 28 men) with an average age of 21.13 years (20–27 years) and a BMI of 21.49 kg/m2 (16.60–28.98). The face-immersion test consisted of stopping breathing after maximum inhaling and voluntarily immersing the face in cold water (8–10 °C) for as long as possible. Measurements included determination of minimum, average, and maximum HR at rest and minimum and maximum HR during the cold-water face-immersion test. The results indicate a strong relationship between the cardiodepressive reaction of the immersion of the face and the minimum HR before the test, as well as a relationship between the maximum HR during the test and the maximum HR at rest. The results also indicate a strong influence of neurogenic HR regulation on the described relationships. The parameters of the basal HR can, therefore, be used as prognostic indicators of the course of the cardiac response of the immersion test.

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Heart Rate Variability at Rest Predicts Heart Response to Simulated Diving

Malinowski

Wierzba

Neary

et al. 2023

Biology

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A characteristic feature of the cardiac response to diving is the uncertainty in predicting individual course. The aim of the study was to determine whether resting regulatory heart rate determinants assessed before diving may be predictors of cardiac response in a simulated diving test. The research was conducted with 65 healthy volunteers (37 women and 28 men) with an average age of 21.13 years (20–27 years) and a BMI of 21.49 kg/m2 (16.60–28.98). The simulated diving test consisted of stopping breathing after maximum inhaling and voluntarily immersing the face in water (8–10 °C) for as long as possible. The measurements included heart rate variability (HRV) analysis before diving and determination of the course of the cardiac response to diving—minimum and maximum heart rate (HR). The results indicate that minimum HR during diving (MIN_div) is dependent on the short-term HRV measures, which proves the strong influence of the parasympathetic system on the MIN_div. The lack of dependence of MIN_div on short-term HRV in women may be associated with differences in neurogenic HR regulation in women and men. In conclusion, cardiac response to simulated diving is strictly dependent on the autonomic regulation of the heart rhythm under resting conditions. The course of the cardiac response to diving and its relationship with resting HRV appears to be gender dependent.

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Multiple baseline approach to predict the heart rate response to simulated diving in young adults

Cited by 3 publications

References 2 publications

Effects of Hyperbaric Exposure on the Cardiovascular System. Role of the Autonomous Nervous System

Effects of Hyperbaric Exposure on the Cardiovascular System. Role of the Autonomous Nervous System

Resting Heart Rate Affects Heart Response to Cold-Water Face Immersion Associated with Apnea

Heart Rate Variability at Rest Predicts Heart Response to Simulated Diving

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