The elevation training mask induces modest hypoxaemia but does not affect heart rate variability during cycling in healthy adults

Jung, Hyun-Chul; Lee, Nan Hee; John, Smith D; Lee, Sukho

doi:10.5114/biolsport.2019.79976

Cited by 24 publications

(25 citation statements)

References 26 publications

(31 reference statements)

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“…Thus, the SIE ARDS session was not perceived as more difficult, which is of great importance for its implementation in regular training in a variety of populations. Similar findings were reported by Jung et al [ 43 ], where RPE did not differ between normal breathing and respiration with ETM during continuous cycling (50 and 70% VO 2 max). Unfortunately, we did not measure other psychological characteristics, such as the sense of pleasure.…”

Section: Discussionsupporting

confidence: 91%

Acute Effects of Using Added Respiratory Dead Space Volume in a Cycling Sprint Interval Exercise Protocol: A Cross-Over Study

Danek

Michalik

Smolarek

et al. 2020

IJERPH

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Background: The aim of the study was to compare acute physiological, biochemical, and perceptual responses during sprint interval exercise (SIE) with breathing through a device increasing added respiratory dead space volume (ARDSV) and without the device. Methods: The study involved 11 healthy, physically active men (mean maximal oxygen uptake: 52.6 ± 8.2 mL∙kg1∙min−1). During four visits to a laboratory with a minimum interval of 72 h, they participated in (1) an incremental test on a cycle ergometer; (2) a familiarization session; (3) and (4) cross-over SIE sessions. SIE consisted of 6 × 10-s all-out bouts with 4-min active recovery. During one of the sessions the participants breathed through a 1200-mL ARDSv (SIEARDS). Results: The work performed was significantly higher by 4.4% during SIEARDS, with no differences in the fatigue index. The mean respiratory ventilation was significantly higher by 13.2%, and the mean oxygen uptake was higher by 31.3% during SIEARDS. Respiratory muscle strength did not change after the two SIE sessions. In SIEARDS, the mean pH turned out significantly lower (7.26 vs. 7.29), and the mean HCO3– concentration was higher by 7.6%. Average La− and rating of perceived exertion (RPE) did not differ between the sessions. Conclusions: Using ARDSV during SIE provokes respiratory acidosis, causes stronger acute physiological responses, and does not increase RPE.

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Section: Discussionsupporting

confidence: 91%

Acute Effects of Using Added Respiratory Dead Space Volume in a Cycling Sprint Interval Exercise Protocol: A Cross-Over Study

Danek

Michalik

Smolarek

et al. 2020

IJERPH

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“…Table 1 shows the participants' cardiovascular characteristics prior to cycling. These obtained values are comparable with other baseline measures in previous studies [38,39]. Table 2).…”

Section: Descriptive Statisticssupporting

confidence: 91%

Short-Term Impact of Traffic-Related Particulate Matter and Noise Exposure on Cardiac Function

Buregeya

Apparicio

2020

IJERPH

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Exposure to traffic-related air pollution and noise exposure contributes to detrimental effects on cardiac function, but the underlying short-term effects related to their simultaneous personal exposure remain uncertain. The aim is to assess the impact of total inhaled dose of particulate matter and total noise exposure on the variations of electrocardiogram (ECG) parameters between pre-cycling and post-cycling periods. Mid-June 2019, we collected four participants’ personal exposure data related to traffic-related noise and particulate matter (PM2.5 and PM10) as well as ECG parameters. Several Bayesian linear models were built to examine a potential association between air pollutants and noise exposure and ECG parameters: heart rate (HR), standard deviation of the normal-to-normal intervals (SDNN), percentage of successive RR intervals that differ by more than 50 ms (pNN50), root mean square of successive RR interval differences (rMSSD), low-frequency power (LF), high-frequency power (HF), and ratio of low- to high-frequency power (LF/HF). We analyzed in total 255 5-min segments of RR intervals. We observed that per 1 µg increase in cumulative inhaled dose of PM2.5 was associated with 0.48 (95% CI: 0.22; 15.61) increase in variation of the heart rate, while one percent of total noise dose was associated with 0.49 (95% CI: 0.17; 0.83) increase in variation of heart rate between corresponding periods. Personal noise exposure was no longer significant once the PM2.5 was introduced in the whole model, whilst coefficients of the latter that were significant previously remained unchanged. Short-term exposure to traffic-related air and noise pollution did not, however, have an impact on heart rate variability.

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“…Although it has been reported that respiratory distress is enhanced by respiratory restriction associated with the surgical mask, there is no report examining the effect of the product on the cardiopulmonary function. Indeed, this aspect must be considered when prescribing the appropriate aerobic exercise intensity at the rehabilitation site if it is established that the respiratory restriction associated with the surgical mask affects the cardiopulmonary function (Jung HC et al, 2019). Therefore, this study aimed to evaluate whether cardiopulmonary function and AT vary when surgical masks are worn.…”

Section: Introductionmentioning

confidence: 99%

Wearing a surgical mask does not affect the anaerobic threshold during pedaling exercise

Otsuka¹,

Komagata²,

Sakamoto³

2020

jhse

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The effect of wearing a surgical mask on cardiopulmonary function and anaerobic threshold (AT) has not been reported. Thus, we aimed to determine whether cardiopulmonary function and AT vary while wearing surgical masks. Six healthy men were enrolled and underwent the cardiopulmonary exercise (CPX) stress test under two different conditions (with and without a commercially available surgical mask) to evaluate their AT. To confirm that there was no breath leakage, a gas mask connected with a respiratory gas analyser was worn over the surgical mask when the participants performed the CPX. The AT was measured by the V-slope method. Moreover, the AT time, exercise load, oxygen consumption, and ventilation values after the CPX were determined. No significant differences were found between the two conditions. The number of complaints of respiratory distress, however, was significantly higher while wearing a surgical mask. The exercise intensity achieved by each participant was equivalent, irrespective of whether they wore the surgical mask; therefore, wearing a surgical mask does not affect cardiopulmonary function during vigorous exercise.

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The elevation training mask induces modest hypoxaemia but does not affect heart rate variability during cycling in healthy adults

Cited by 24 publications

References 26 publications

Acute Effects of Using Added Respiratory Dead Space Volume in a Cycling Sprint Interval Exercise Protocol: A Cross-Over Study

Acute Effects of Using Added Respiratory Dead Space Volume in a Cycling Sprint Interval Exercise Protocol: A Cross-Over Study

Short-Term Impact of Traffic-Related Particulate Matter and Noise Exposure on Cardiac Function

Wearing a surgical mask does not affect the anaerobic threshold during pedaling exercise

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