Variations in Heart Rate at Blood Lactate Threshold Due to Exercise Mode in Elite Cross-Country Skiers

2006 ◽  
Vol 20 (4) ◽  
pp. 855
Author(s):  
Abigail J. Larson
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Lactate Threshold ◽  
Exercise Mode ◽  
Cross Country

Physiological Responses to Specific Maximal Exercise Tests for Cross-Country Skiing

1993 ◽  
Vol 18 (4) ◽  
pp. 359-365 ◽  
Author(s):  
Phillip B. Watts ◽  
Jon Eric Sulentic ◽  
Kip M. Drobish ◽  
Timothy P. Gibbons ◽  
Victoria S. Newbury ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Blood Lactate ◽  
Maximal Exercise ◽  
Physiological Responses ◽  
Peak Oxygen Uptake ◽  
Open Circuit ◽  
Exercise Tests ◽  
Double Poling ◽  
Cross Country

The present study attempted to quantify differences in peak physiological responses to pole-striding (PS), double poling on roller skis (DP), and diagonal striding on roller skis (DS) during maximal exercise. Six expert cross-country ski racers (3 M, 3 F) with a mean age of 20.2 ± 1.3 yrs served as subjects. Testing was conducted on a motorized ski treadmill with a tracked belt surface. Expired air was analyzed continuously via an automated open-circuit system and averaged each 20 s. Heart rate was monitored via telemetry and arterialized blood was collected within 1 min of test termination and analyzed immediately for lactate. Peak values for heart rate and blood lactate did not differ among techniques. Peak oxygen uptake was higher for PS and DS versus DP whereas no difference was found between PS and DS. The VO2 peak for DP was 77 and 81% of VO2 peak for PS and DS, respectively. It was concluded that despite similar peak heart rate and blood lactate values, DP elicits a lower VO2 peak than DS or PS and that PS responses appear to closely reflect those of DS. Key words: exercise testing, maximum oxygen uptake, roller skiing, specificity of exercise, x-c skiing

Heart-Rate Variability and Blood-Lactate Threshold Interaction During Progressive Resistance Exercise in Healthy Older Men

2010 ◽  
Vol 24 (5) ◽  
pp. 1313-1320 ◽  
Author(s):  
Rodrigo P Simões ◽  
Renata G Mendes ◽  
Viviane Castello ◽  
Heloísa G Machado ◽  
Larissa B Almeida ◽  
...  
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
Resistance Exercise ◽  
Blood Lactate ◽  
Lactate Threshold ◽  
Older Men ◽  
Progressive Resistance Exercise ◽  
Progressive Resistance

scholarly journals Performance Diagnostic in Cross-Country Skiing

2015 ◽  
Vol 16 (2) ◽  
Author(s):  
Benedikt A. Gasser ◽  
Hans H. Hoppeler
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Endurance Capacity ◽  
Maximum Heart Rate ◽  
Running Speed ◽  
Cross Country Skiing ◽  
Cross Country ◽  
The Relationship

AbstractPurpose. Recreational cross-country skiers can benefit from a performance diagnostic when planning a training program. The aim of this study was to establish a simple test protocol to measure endurance capacity and provide training recommendations. Methods. The relationship between endurance performance and cross-country skiing technique was assessed using two tests. First, a lactate threshold test whereby running speed was determined on a treadmill at 4 mmol/l blood lactate concentration. Second, participants completed a variation of the Cooper test using skating technique on flat terrain to determine the distance covered in 12 min and maximum heart rate. Results. There was a correlative (r = 0.18 respectivelly R2 = 0.43) relationship of between the distance covered in the Cooper test and treadmill running speed at 4 mmol/l blood lactate concentration. Conclusions. The two tests allow recreational athletes to rank themselves with regards to their endurance capacity within a population. The relationship between distance covered and maximum heart rate can indicate whether future training should focus on technical or physical improvement.

scholarly journals Do Elite Endurance Athletes Report Their Training Accurately?

2014 ◽  
Vol 9 (1) ◽  
pp. 85-92 ◽  
Author(s):  
Øystein Sylta ◽  
Espen Tønnessen ◽  
Stephen Seiler
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Intensity Distribution ◽  
Gold Standard ◽  
Reporting Guidelines ◽  
Training Data ◽  
Endurance Athletes ◽  
Altitude Training ◽  
Expert Analysis ◽  
Cross Country

Purpose:The purpose of this study was to validate the accuracy of self-reported (SR) training duration and intensity distribution in elite endurance athletes.Methods:Twenty-four elite cross-country skiers (25 ± 4 y, 67.9 ± 9.88 kg, 75.9 ± 6.50 mL · min−1 · kg−1) SR all training sessions during an ~14-d altitude-training camp. Heart rate (HR) and some blood lactate measurements were collected during 466 training sessions. SR training was compared with recorded training duration from HR monitors, and SR intensity distribution was compared with expert analysis (EA) of all session data.Results:SR training was nearly perfectly correlated with recorded training duration (r = .99), but SR training was 1.7% lower than recorded training duration (P < .001). SR training duration was also nearly perfectly correlated (r = .95) with recorded training duration >55% HRmax, but SR training was 11.4% higher than recorded training duration >55% HRmax (P < .001) due to SR inclusion of time <55% HRmax. No significant differences were observed in intensity distribution in zones 1–2 between SR and EA comparisons, but small discrepancies were found in zones 3–4 (P < .001).Conclusions:This study provides evidence that elite endurance athletes report their training data accurately, although some small differences were observed due to lack of a SR “gold standard.” Daily SR training is a valid method of quantifying training duration and intensity distribution in elite endurance athletes. However, additional common reporting guidelines would further enhance accuracy.

Heart Rate and Blood Lactate Level of 8–12-Years-Old Boys and Girls During Cross-country Ski-Competitions

1984 ◽  
pp. 189-195
Author(s):  
J. Ilmarinen ◽  
C-H. Nygard ◽  
P. V. Komi ◽  
J. Karlsson
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Lactate Level ◽  
Blood Lactate Level ◽  
Cross Country

scholarly journals The Effect of Endurance Exercise Modality on Markers of Fatigue

2021 ◽  
Vol 9 (3) ◽  
pp. 35
Author(s):  
Andrew R. Moorea ◽  
Jasmin C. Hutchinsona ◽  
Christa R. Wintera ◽  
Paul C. Daltona ◽  
Vincent J. Paolonea
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
Power Output ◽  
Repeated Measures ◽  
Perceived Exertion ◽  
Rating Of Perceived Exertion ◽  
Exercise Mode ◽  
Dependent Variables ◽  
Exercise Fatigue ◽  
Peripheral Sensory

Background: Exercise power output, and resulting fatigue, is regulated based on central and peripheral sensory input. Whether exercise mode, specifically, contributes to this regulation remains unexplored. Objective: This study was designed to determine if differences in markers of fatigue would be present during two time trials of similar duration and intensity, as a result of exercise mode (cycling and rowing). Method: In a randomized crossover design, nine subjects completed the two 7-min time trials, on different days. Exercise power output, heart rate, rating of perceived exertion, and blood lactate measurements were analyzed using repeated-measures ANOVAs. Results: There was a significant interaction between mode and time for power output (p =.02), but no significant differences between matched time points were observed for any of the dependent variables used to assess fatigue (p >.05). Conclusion: Similar levels of heart rate, perceived exertion, and blood lactate for time trials on different modes, but with the same duration and directed intensity, suggest that in a laboratory environment, exercise is regulated more by physiological disturbance and sensory cues than by exercise mode. These findings support the sensory tolerance limit of exercise fatigue.

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