Abstract
Cardiological diagnostics use maximal and submaximal tests with increasing load. Maximal stress tests are currently considered the gold standard. The Institut für Prävention und Nachsorge, Cologne (IPN) test may be an alternative when maximal patient load is not indicated. The universality of the test is well-documented in sport, but the reliability of this test is unknown. The aim of this study was to assess between-trial and between-day reliability for parameters assessed by the IPN stress test in cardiological patients.: In a study of 24 patients aged 39 to 79 years with cardiovascular diseases, the IPN cycle ergometer short test was performed (submaximal performance test). The reliability of heart rate, systolic and diastolic pressure, absolute power at submaximal load, relative performance at submaximal load and target heart rate were assessed. Good (Interclass Correlation Coefficient (ICC) values ranged from 0.832 to 0.894) and excellent (ICC values ranged from 0.904 to 0.969) between-trial reliability was noted. Between-day reliability was good (ICC values from 0.777 to 0.895) and excellent (ICC values from 0.922 to 0.950). The obtained results suggest that the IPN test may be a reliable tool for use in the assessment of cardiological patients, avoiding the implementation of maximal efforts when excessive patient load is not recommended.
Highlights
Cardiac rehabilitation plays an important role in the treatment of cardiovascular diseases
The aim of the study is to assess between-trial and between-day reliability for parameters assessed by the IPN stress test in cardiological patients
Strong correlations were noted between measurements (r = 0.722–0.858; p = 0.001)
Summary
Cardiac rehabilitation plays an important role in the treatment of cardiovascular diseases. One of them is assessment based on a patient’s subjective fatigue This is a highly subjective and ineffective test in patients with concomitant disease reducing respiratory function. Another method is the cardiopulmonary exercise test (ergospirometry), a valuable evaluation tool allowing us to differentiate between the causes of dyspnoea in patients undergoing rehabilitation. The assessment of the body’s response during physical effort is one of the most important elements of diagnostics used in cardiac rehabilitation. Some disease symptoms, such as, e.g., indications of myocardial ischaemia, early signs of failure or arrhythmia, can only manifest themselves when the body is under stress. Testing is useful in the qualification of the performance of certain professional activities or determining the intensity of physical activity [8,9]
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