Power Output at the Heart Rate Turn Point in Relation to Metabolic Steady-State Conditions in Patients With CHD

Pokan, Rochus; Hofmann, Paul; Smekal, Gerhard; Pelikan, Janine; Retzer, H; Rohrer, A; Duvillard, Serge P. von; Wonisch, Manfred; Schmid, Peter; Bachl, Norbert

doi:10.1097/00005768-200105001-00360

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“…It was shown that some authors confirmed that the HRTP was able to predict the MLSS for cycle ergometer exercise, 27 kayaking, 69 badminton 70 and even in coronary heart disease patients. 71 However, other authors have failed to show this relationship. 3 Some of the discrepancies may be explained by methodological differences.…”

Section: Relationship Of Hrtp and Ltp 2 Vt 2 Mlssmentioning

confidence: 99%

Value of the Application of the Heart Rate Performance Curve in Sports

Hofmann¹,

Pokan²

2010

International Journal of Sports Physiology and Performance

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The heart rate performance curve (HRPC) has been shown to be nonlinearly related to work load. This phenomenon has been used to determine a defection point and to be related to the lactate anaerobic threshold. The original method was heavily criticized, and the method was challenged by several authors. However, some authors also demonstrated a high value for this method’s application in various sports conditions. Unfortunately, the HRPC was shown to be not uniform and three different patterns were found. Basic investigations have shown a dependence of the HR-defection on beta1-receptor sensitivity, which gave a plausible explanation of the phenomenon. Important details regarding the testing protocol and the method of turn point determination are given in this review. As a conclusion, we may state that based on numerous studies the method is plausible and valid to determine aerobic exercise performance in various laboratory ergometer and specific sports-related field conditions. Standard protocol conditions adjusted to the exercise performance level of subjects and a computer-supported determination of turn points are necessary to obtain reliable results. Large-scale investigations to validate the heart rate turn point with maximal lactate steady state are still needed. However, from the available literature, the application of this noninvasive method can be recommended to determine aerobic exercise performance in various sports. This noninvasive test is easy to perform repeatedly, which gives interesting possibilities for the monitoring of training adaptation in the short term, such as altitude training or specifc taper forms.

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