Comparison of Incremental Shuttle Walking Test, 6-Minute Walking Test, and Cardiopulmonary Exercise Stress Test in Patients with Myocardial Infarction

17 October 2022 : Clinical Research

Ho-Jeong Lim^12ABCF, Sung-Ju Jee^2BDE, Myung-Mo Lee^3ADEG*

DOI: 10.12659/MSM.938140

Med Sci Monit 2022; 28:e938140

Table 2 Comparison of correlations between the indicators of the Maximal Exercise Stress Test and the Submaximal Exercise Stress Test.

	CPX vs ISWT		CPX vs 6MWT
	Pearson r	95% CI	Pearson r	95% CI
Peak VO vs distance, m
Mild (n=6)	.813^*	.301~1.000	.737	.294~.999
Moderate (n=8)	.808^*	.466~.988	.745^*	.113~.977
Severe (n=6)	.855^*	.477~1.000	.817^*	.103~1.000
Total (n=20)	.823^*	.681~.910	.776^*	.683~.870
HRmax, beats
Mild (n=6)	.940	.759~.999	.929	.714~1.000
Moderate (n=8)	.488	.293~1.000	.600	.276~1.000
Severe (n=6)	.987	.954~1.000	.698	.509~1.000
Total (n=20)	.815^*	.451~.996	.664^*	.146~.911
RPE, scores
Mild (n=6)	.632	.316~1.000	.250	−.500~1.000
Moderate (n=8)	−.025	−.698~.920	−.525	−.851~.224
Severe (n=6)	−.632	−1.000~.316	−.250	−1.000~.500
Total (n=20)	.297	−.203~.717	.296	−.185~.742
^* p 6MWT – 6-minute walking test; CPX – cardiopulmonary exercise test; HRmax – maximum heart rate; ISWT – instrumental shuttle walking test; RPE – rating of perceived exertion; VO – oxygen uptake.