Heart Rate Response during Incremental Exercise in Master Runners.

Lucı́a, Alejandro; Carvajal, Alfredo; Pérez, Margarita; Boraita, Araceli; Serratosa, Luis; Chicharro, José López

doi:10.2170/jjphysiol.50.155

Cited by 7 publications

(10 citation statements)

References 10 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this study, we succeeded in identifying HR DP in nine of our runners, whereas the remaining three runners showed entirely linear HR response. These results support the findings of other investigators who documented that HR DP could not always be observed during an incremental exercise test even when the modified CT protocol was applied (24,25). Bourgois and Vrijens (8) and Bourgois et al (7), on the other hand, were able to detect HR DP in all of their subjects who were also submitted to the modified CT.…”

Section: Discussionsupporting

confidence: 89%

See 1 more Smart Citation

Prediction of lactate threshold using the modified Conconi test in distance runners

et al. 2016

View full text Add to dashboard Cite

This study aimed to examine the validity of the modified Conconi test (CT) to predict lactate threshold (LT) during running. Twelve distance runners randomly performed the modified CT and the incremental test in which LT was determined directly by measuring blood lactate (BLa). Mean values of heart rate (HR) and running speed (RS) at heart rate deflection point (HR DP ) obtained through the modified CT were compared with those at LT. Subsequently, the runners who showed a HR DP in the modified CT performed a 30-min prolonged exercise test (PET) at a RS corresponding to HR DP . During this test, the kinetics of BLa and HR were analyzed to determine whether a steady state in these variables could be attained. We succeeded in identifying HR DP in nine of our runners, whereas the remaining three runners showed entirely linear HR response. In those nine runners, no significant difference was found between HR and RS at HR DP and those at LT. Significant correlation was found between HR at HR DP and HR at LT (r = 0.84, p = 0.005), but RS at HR DP was not significantly correlated with RS at LT (r = 0.63, p = 0.07). All nine runners were able to complete the PET with steady state conditions being achieved for both BLa and HR. In conclusion, these findings indicate that the modified CT has a potential to be used as an alternative method for assessment of LT in distance runners presenting a HR DP .

show abstract

Section: Discussionsupporting

confidence: 89%

“…However, the small sample size is a common characteristic of the majority of the previous HR DP studies (7,8,17,18,(22)(23)(24). Another limitation of this study is the fact that runners did not repeat the modified CT to assess reliability of this test.…”

Section: Discussionmentioning

confidence: 94%

Prediction of lactate threshold using the modified Conconi test in distance runners

et al. 2016

View full text Add to dashboard Cite

show abstract

“…From a great number of tests performed in subjects of different performance levels and age there were a number of heart rate curves to be non regular which was in contrast to Conconi et al 1,21 In a study including a great number of young male students we showed three typical patterns of the heart rate performance curve, namely a regular pattern such as described for Conconi's test, a strictly linear time course without any deflection at all and, even more interesting, an inverted time course of the HRPC in 6-8% of healthy young male subjects without any differences in the lactate performance curve or other related performance variables. 17 This pattern was also found in master runners 20 and young healthy female subjects ( Figure 2); however, the number of inverted curves was found half of the male counterparts. 39 This inverted HRPC focused our attention as this pattern was similar to that typically seen in heart disease patients which gave rise to some speculations about pathophysiological (pre)conditions even in young trained and apparently healthy subjects.…”

Section: Physiological Backgroundsupporting

confidence: 65%

“…No physiological explanation rather than a methodological artifact of the phenomenon 15 No causal relationship of the heart rate deflection point and the lactate anaerobic threshold 13,14 No standard methods for AT determination were used for comparison by the Italian working group [3][4][5] No uniform time course of the heart rate performance curve and even curves without a deflection at all [16][17][18][19][20] In 1996 Conconi et al presented an update of the method and gave some comments and results to clarify some of the early questions and criticism. 21 However, there were a substantial number of papers refuting the method.…”

mentioning

confidence: 99%

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

Hofmann¹,

Pokan²

2010

International Journal of Sports Physiology and Performance

View full text Add to dashboard Cite

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.

show abstract

“…In endurance-trained elderly men (i.e., master marathoners with a mean age of 62 y and a mean V Ç O 2max of 50 ml´kg ±1´m in ±1 ), AerT GE and AnT GE occurred at similar relative intensities than those reported in young endurance athletes, i.e. at~65 and~85% V Ç O 2max , respectively [71]. These findings might indicate that habituation to high degrees of effort enables higher maximal ergometric measurements and, consequently, lower relative values for AerT GE and AnT GE .…”

Section: Older Subjectsmentioning

confidence: 84%

A Conceptual Framework for Performance Diagnosis and Training Prescription from Submaximal Gas Exchange Parameters - Theory and Application

et al. 2005

View full text Add to dashboard Cite

The first part of this article intends to give an applicable framework for the evaluation of endurance capacity as well as for the derivation of exercise prescription by the use of two gas exchange thresholds: aerobic (AerTGE) and anaerobic (AnTGE). AerT GE corresponds to the first increase in blood lactate during incremental exercise whereas AnTGE approximates the maximal lactate steady state. With very few constraints, they are valid in competitive athletes, sedentary subjects, and patients. In the second part of the paper, the practical application of gas exchange thresholds in cross-sectional and longitudinal studies is described, thereby further validating the 2-threshold model. It is shown that AerTGE and AnTGE can reliably distinguish between different states of endurance capacity and that they can well detect training-induced changes. Factors influencing their relationship to the maximal oxygen uptake are discussed. Finally, some approaches of using gas exchange thresholds for exercise prescription in athletes, healthy subjects, and chronically diseased patients are addressed.

show abstract

Heart Rate Response during Incremental Exercise in Master Runners.

Cited by 7 publications

References 10 publications

Prediction of lactate threshold using the modified Conconi test in distance runners

Prediction of lactate threshold using the modified Conconi test in distance runners

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

A Conceptual Framework for Performance Diagnosis and Training Prescription from Submaximal Gas Exchange Parameters - Theory and Application

Contact Info

Product

Resources

About