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Effect of Baseline Status on Cardiovascular Responses Post-isometric Handgrip Exercise

Nidhi Gupta
Nidhi Gupta
, 
Kapil Gupta
Kapil Gupta
, 
Harsh S. Dave
Harsh S. Dave
 et 
Amit Tak
Amit Tak
   | 14 déc. 2022
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Article Category: Original Article
Publié en ligne: 14 déc. 2022
Pages: 174 - 181
DOI: https://doi.org/10.2478/rjc-2022-0029
Mots clés
© 2022 Nidhi Gupta et al., published by Sciendo
This work is licensed under the Creative Commons Attribution 4.0 International License.

One-way repeated-measures ANOVA to compare various absolute heart rate variability measures before (baseline), during (phase 1), and after 5 minutes (phase 2) of handgrip exercise

Repeated measures ANOVA using Friedman Test Conover's post hoc comparisons
Levels Median IQR Test statistic p Level 1 Level 2 T-Stat pbonf
SDNN bSDNN 0.059 0.04 7.112 0.029 bSDNN SDNN1 0.159 1
SDNN1 0.064 0.039 bSDNN SDNN2 2.385 0.058
SDNN2 0.073 0.059 SDNN1 SDNN2 2.226 0.086
RMSSD bRMSSD 0.067 0.058 9.911 0.007 bRMSSD RMSSD1 0.527 1
RMSSD1 0.061 0.066 bRMSSD RMSSD2 2.424 0.052
RMSSD2 0.068 0.071 RMSSD1 RMSSD2 2.951 0.012
pN50 bpN50 0.211 0.374 11.227 0.004 bpN50 pN501 0.427 1
pN501 0.26 0.268 bpN51 pN502 2.666 0.027
pN502 0.378 0.46 pN501 pN502 3.092 0.008
TP bTP 1087 2077.8 4.844 0.089 bTP TP1 0.211 1
TP1 1204 2390.5 bTP TP2 2.003 0.145
TP2 1427 3198 TP1 TP2 1.792 0.23
HF bHF 322.08 826.42 5.404 0.067 bHF HF1 0.742 1
HF1 356.4 832.54 bHF HF2 1.537 0.384
HF2 534.79 967.96 HF1 HF2 2.279 0.075
LF/HF bLF/HF 0.66 0.46 70.136 < .001 bLF/HF LF/HF1 8.21 < .001
LF/HF1 1.1 1.05 bLF/HF LF/HF2 5.545 < .001
LF/HF2 0.9 0.78 LF/HF1 LF/HF2 2.666 0.027

Relationship between absolute and relative changes in heart rate variability parameters before (baseline), during (phase 1), and after 5 minutes (phase 2) of isometric handgrip exercise

Variable Parameter 1 Parameter 2 Pearson's correlation coefficient p
TP bTP ΔTP1 −0.819 < .001
bTP ΔTP2 −0.163 0.286
TP1 ΔTP1 0.206 0.174
TP2 ΔTP2 0.59 < .001
HF bHF ΔHF1 −0.763 < .001
bHF ΔHF2 −0.116 0.447
HF1 ΔHF1 0.224 0.139
HF2 ΔHF2 0.544 < .001
LF/HF bLF/HF ΔLF/HF1 0.335 0.025
bLF/HF ΔLF/HF2 0.188 0.215
LF/HF1 ΔLF/HF1 0.832 < .001
LF/HF2 ΔLF/HF2 0.737 < .001
RMSSD bRMSSD ΔRMSSD1 −0.581 < .001
bRMSSD ΔRMSSD2 −0.078 0.611
RMSSD1 ΔRMSSD1 0.347 0.02
RMSSD2 ΔRMSSD2 0.605 < .001
pN50 bpN50 ΔSpN501 −0.524 < .001
bpN50 ΔSpN502 −0.027 0.86
pN501 ΔSpN501 0.193 0.203
pN502 ΔSpN502 0.438 0.003
SDNN bSDNN ΔSDNN1 −0.634 < .001
bSDNN ΔSDNN2 −0.023 0.882
SDNN1 ΔSDNN1 0.151 0.323
SDNN2 ΔSDNN2 0.585 < .001

One-way repeated-measures ANOVA to compare various absolute hemodynamic parameters before (baseline), during (phase 1), and after 5 minutes (phase 2) of handgrip exercise

Repeated measures ANOVA using Friedman Test Conover's post hoc comparisons
Hemodynamic Variable Levels Median IQR Test statistic p Level 1 Level 2 T-Stat pbonf
SBP bSBP 114 10 34.785 < .001 bSBP SBP1 5.747 < .001
SBP1 120 12 bSBP SBP2 4.057 < .001
SBP2 120 12 SBP1 SBP2 1.69 0.284
DBP bDBP 78 10 74.235 < .001 bDBP DBP1 8.622 < .001
DBP1 90 14 bDBP DBP2 4.061 < .001
DBP2 80 10 DBP1 DBP2 4.561 < .001
HR bHR 80 19 74.279 < .001 bHR HR1 8.523 < .001
HR1 86 20 bHR HR2 5.394 < .001
HR2 86 18 HR1 HR2 3.129 0.007
PP bPP 38 12 12.358 0.002 bPP PP1 3.335 0.004
PP1 31 12 bPP PP2 0.699 1
PP2 37 12 PP1 PP2 2.635 0.03
MAP bMAP 89.333 10 79.416 < .001 bMAP MAP1 8.905 < .001
MAP1 99.333 13.333 bMAP MAP2 4.771 < .001
MAP2 94 10.667 MAP1 MAP2 4.135 < .001
RPP bRPP 92.4 17.84 76.227 < .001 bRPP RPP1 8.637 < .001
RPP1 107.1 24.84 bRPP RPP2 5.438 < .001
RPP2 101.48 18.63 RPP1 RPP2 3.199 0.006

Relationship between absolute and relative changes in hemodynamic parameters before (baseline), during (phase 1), and after 5 minutes (phase 2) of isometric handgrip exercise

Variable Parameter 1 Parameter 2 Pearson's correlation coefficient p
SBP bSBP ΔSBP1 −0.17 0.264
bSBP ΔSBP2 −0.158 0.299
SBP1 ΔSBP1 0.594 < .001
SBP2 ΔSBP2 0.497 < .001
DBP bDBP ΔDBP1 −0.41 0.005
bDBP ΔDBP2 −0.367 0.013
DBP1 ΔDBP1 0.397 0.007
DBP2 ΔDBP2 0.362 0.015
HR bHR ΔHR1 −0.197 0.195
bHR ΔHR2 −0.274 0.069
HR1 ΔHR1 0.09 0.557
HR2 ΔHR2 −0.054 0.724
PP bPP ΔPP1 −0.408 0.005
bPP ΔPP2 −0.339 0.023
PP1 ΔPP1 0.594 < .001
PP2 ΔPP2 0.492 < .001
MAP bMAP ΔMAP1 −0.317 0.034
bMAP ΔMAP2 −0.304 0.042
MAP1 ΔMAP1 0.401 0.006
MAP2 ΔMAP2 0.363 0.014
RPP bRPP ΔRPP1 −0.077 0.615
bRPP ΔRPP2 −0.147 0.336
RPP1 ΔRPP1 0.401 0.006
RPP2 ΔRPP2 0.244 0.107

Comparison of relative hemodynamic parameters during (phase 1) and after 5 minutes (phase 2) of IHG exercise

Variable PhaseΔX=X-baselineX Mean/Median SD/IQR Statistic p
SBP ΔSBP1 6 12 413 0.018
ΔSBP2 4 7
DBP ΔDBP1 12 10 736 < .001
ΔDBP1 6 8
HR ΔHR1 7 6 694.5 < .001
ΔHR2 4 4
PP ΔPP1 −5.333 9.677 −3.964 < .001
ΔPP2 −1.378 7.779
MAP ΔMAP1 9.667 7.667 916 < .001
ΔMAP2 4.667 7.333
RPP ΔRPP1 13.057 7.909 3.769 < .001
ΔRPP2 9.647 6.083

Comparison of various relative heart rate variability parameters during (phase 1) and after 5 minutes (phase 2) of IHG exercise

Variable PhaseΔX=X-baselineX Median IQR Statistic# p
RMSSD ΔRMSSD1 −0.001 0.032 314 0.022
ΔRMSSD2 0.01 0.046
pN50 ΔpN501 0 0.11 213 0.002
ΔpN502 0.049 0.129
SDNN ΔSDNN1 0 0.021 269 0.005
ΔSDNN2 0.006 0.032
TP ΔTP1 −2.7 1067.8 334 0.038
ΔTP2 557.5 2461
HF ΔHF1 −34.32 433.16 309 0.03
ΔHF2 101.9 572.9
LF/HF ΔLF/HF1 0.47 0.57 715 < .001
ΔLF/HF2 0.24 0.27
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Medicine, Clinical Medicine, Internal Medicine, Cardiology, Pediatrics and Juvenile Medicine, Paediatric Cardiology, Surgery, Cardiac Surgery
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