Effect of air ionization on heart rate and perceived exertion during a bicycle exercise test

1979 ◽  
Vol 41 (4) ◽  
pp. 285-291 ◽  
Author(s):  
A. R. A. Sovij�rvi ◽  
S. Rosset ◽  
J. Hyv�rinen ◽  
A. Franssila ◽  
G. Graeffe ◽  
...  
Keyword(s):  
Heart Rate ◽  
Exercise Test ◽  
Perceived Exertion ◽  
Bicycle Exercise ◽  
Air Ionization ◽  
Bicycle Exercise Test

Comparison of dipyridamole-handgrip test and bicycle exercise test for thallium tomographic imaging

1988 ◽  
Vol 61 (4) ◽  
pp. 264-268 ◽  
Author(s):  
Heikki V. Huikuri ◽  
Ulla R. Korhonen ◽  
K.E.Juhani Airaksinen ◽  
Markku J. Ikäheimo ◽  
Juhani Heikkilä ◽  
...  
Keyword(s):  
Exercise Test ◽  
Tomographic Imaging ◽  
Bicycle Exercise ◽  
Handgrip Test ◽  
Bicycle Exercise Test

Reproducibility of Heart Rate Variability Threshold in Untrained Individuals

2018 ◽  
Vol 40 (02) ◽  
pp. 95-99 ◽  
Author(s):  
Fabiula Novelli ◽  
Jaqueline de Araújo ◽  
Geovane Tolazzi ◽  
Gabriel Tricot ◽  
Gisela Arsa ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Exercise Test ◽  
Perceived Exertion ◽  
Intraclass Correlation ◽  
Physical Effort ◽  
Incremental Exercise Test ◽  
Significant Difference ◽  
High Intraclass Correlation Coefficient ◽  
Cardiac Modulation

AbstractThe aim of this study was to evaluate the reproducibility of the heart rate variability threshold (HRVT) by different HRV indexes and determination criteria. 68 untrained participants, 17 women (24.09±4.91 years old; 21.54±1.97 kg∙m−2) and 51 men (24.52±3.52 years old; 26.51±6.31 kg∙m−2), were evaluated on 2 different days (test and retest). The HRVT was determined during an incremental exercise test using 2 indexes (SD1 and RMSSD) and criteria (HRTV1, first intensity of physical effort with index<3 ms, and HRVT2, first intensity of physical effort, in which the index presents a difference<1 ms between 2 consecutive intensities). There was no significant difference (p<0.05) between the test and retest for any of the variables evaluated. All variables, except for the rate of perceived exertion at HRVT2, presented moderate to high intraclass correlation coefficient (HRVT1: 0.55–0.85 and HRVT2:0.58–0.69). All variables at HRVT1 and the heart rate at HRVT2 showed coefficient of variation ~ 10%. The HRVT, regardless of criteria and HRV index used, showed satisfactory reproducibility. Thus, these criteria can be used to assess clinically autonomic cardiac modulation and aerobic capacity, and to analyze the effect of different interventions.

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