Relation Between Blood Lactate Levels, Heart Rate, And Rating Of Perceived Exertion In Kickboxing
0
Citation
0
Reference
10
Related Paper
Abstract:
Blood lactate has been shown to be a reliable tool to monitor the exercise intensity and fatigue level. However, heart rate (HR) seems to be more convenience and noninvasive index compared with blood lactate. PURPOSE To examine the relation between blood lactate levels (BL), HR, and rating of perceived exertion (RPE) in professional kickboxers during different periods of competition. METHODS 12 male and 11 female professional kickboxers (mean ± SD; age 20.1 ± 1.8 years; height 173.2 ± 5.9 cm; body mass 62.0 ± 1.5 kg) participated in this study. The BL, HR and RPE were measured before, during and after the match at national level competition. Subjects also performed incremental cycling test until exhaustion at which similar measurements were made. RESULTS There was a moderate correlation between BL and HR before, during and after the match, and the maximal relative coefficients were 0.87 (P<0.05) in male and 0.93 (P<0.05) in female. BL was highly correlated to HR during the last 3 rounds (P<0.05) during the match. Similar result was found in cycling trial. Whereas, the relation between BL and RPE was low, with the maximal relative coefficients were 0.37 in male and 0.33 in female (P>0.05). The relation between HR and RPE was also not significant. CONCLUSION The results reconfirmed that there is a close relationship between HR and BL during kickboxing. HR could be viewed as a valid tool to monitor the exercise intensity and fatigue level during the game.Keywords:
Perceived exertion
Cycling
The aim of this study was to examine the impacts on blood lactate concentration, measured heart rate and assessment of perceived exertion during split sessions of equal relative load, as also their relationship to the specific sport practised. Nineteen regional-level athletes (nine middle and long-distance runners (cyclic group) and ten field-sport team players (acyclic group)) performed four high-intensity interval training (HIIT) sessions with work-interval durations of 10 s, 50 s, 90 s and 130 s. The sessions were carried out at their usual training sites with a separation of at least 48 hours. Blood lactate concentration was measured at rest and 3 min after the completion of each protocol. Heart rate was measured continuously during all sessions with a sampling rate of 1 s, and rating of perceived exertion (RPE) was requested at the end of the trial. The results showed an increase in blood lactate concentration, peak heart rate and rating of perceived exertion during long protocols as compared with short ones. No differences were observed in dependent variables between cyclic and acyclic groups. Significant but moderate correlations were observed between post-exercise blood lactate concentration, peak heart rate and RPE.
Interval training
Perceived exertion
Intensity
Exertion
Work rate
High-Intensity Interval Training
Lactate threshold
Cite
Citations (29)
The relation between perceived exertion and physiological indicators of exertion during exercise was studied. HR (heart rate) Vo2, (oxygen uptake) and blood lactate concentration were measured, and RPE (rating of perceived exertion) waa recorded at different work loads for 12 subjects working with a wheelbarrow, with lifting of weights, and on a bicycle ergometer. The results showed that RPE is related to HR in a fairly linear way irrespective of the kind of work. Differences in the level of perceived exertion in relation to heart rate were found between the different kinds of work. These differences were related, to some extent, to the amount of oxygen uptake and blood lactate concentration.
Exertion
Perceived exertion
Cite
Citations (137)
Blood lactate has been shown to be a reliable tool to monitor the exercise intensity and fatigue level. However, heart rate (HR) seems to be more convenience and noninvasive index compared with blood lactate. PURPOSE To examine the relation between blood lactate levels (BL), HR, and rating of perceived exertion (RPE) in professional kickboxers during different periods of competition. METHODS 12 male and 11 female professional kickboxers (mean ± SD; age 20.1 ± 1.8 years; height 173.2 ± 5.9 cm; body mass 62.0 ± 1.5 kg) participated in this study. The BL, HR and RPE were measured before, during and after the match at national level competition. Subjects also performed incremental cycling test until exhaustion at which similar measurements were made. RESULTS There was a moderate correlation between BL and HR before, during and after the match, and the maximal relative coefficients were 0.87 (P<0.05) in male and 0.93 (P<0.05) in female. BL was highly correlated to HR during the last 3 rounds (P<0.05) during the match. Similar result was found in cycling trial. Whereas, the relation between BL and RPE was low, with the maximal relative coefficients were 0.37 in male and 0.33 in female (P>0.05). The relation between HR and RPE was also not significant. CONCLUSION The results reconfirmed that there is a close relationship between HR and BL during kickboxing. HR could be viewed as a valid tool to monitor the exercise intensity and fatigue level during the game.
Perceived exertion
Exertion
Intensity
Cite
Citations (0)
Perceived exertion
Bicycle ergometer
Exertion
Cite
Citations (5)
Purpose : In long-track speed skating, drafting is a commonly used phenomenon in training; however, it is not allowed in time-trial races. In speed skating, limited research is available on the physical and psychological impact of drafting. The aim of this study was to determine the influence of “skating alone,” “leading,” or “drafting” on physical intensity (heart rate and blood lactate) and perceived intensity (perceived exertion) of speed skaters. Methods : Twenty-two national-level long-track speed skaters with a mean age of 19.3 (2.6) years skated 5 laps, with similar external intensity in 3 different conditions: skating alone, leading, or drafting. Repeated-measures analysis of variance showed differences between the 3 conditions, heart rate ( F 2,36 = 10.546, P < .001), lactate ( F 2,36 = 12.711, P < .001), and rating of perceived exertion ( F 2,36 = 5.759, P < .01). Results : Heart rate and lactate concentration were significantly lower ( P < .001) when drafting compared with leading (heart rate Δ = 7 [8] beats·min –1 , 4.0% [4.7%]; lactate Δ = 2.3 [2.3] mmol/L, 28.2% [29.9%]) or skating alone (heart rate Δ = 8 [7.1] beats·min –1 , 4.6% [3.9%]; lactate Δ = 2.8 [2.5] mmol/L, 33.6% [23.6%]). Rating of perceived exertion was significantly lower ( P < .01) when drafting (Δ = 0.8 [1.0], 16.5% [20.9%]) or leading (Δ = 0.5 [0.9], 7.7% [20.5%]) versus skating alone. Conclusions : With similar external intensity, physical intensity, as well as perceived intensity, is reduced when drafting in comparison with skating alone. A key finding of this study is the psychological effect: Skating alone was shown to be more demanding than leading, whereas leading and drafting were perceived to be similar in terms of perceived exertion. Knowledge about the reduction of internal intensity for a drafting skater compared with leading or skating alone can be used by coaches and trainers to optimize training conditions.
Intensity
Perceived exertion
Exertion
Cite
Citations (5)
Treadmill
Perceived exertion
Exertion
Intensity
Running economy
Cite
Citations (27)
The purpose of this research was to study effect of small-sided games training on heart rate (HR), blood lactate (BL) and rating perceived exertion (RPE). Twelve male futsal players age between 18-25 years were the subjects of the research. The participants were divided into 3 teams and completed two different pitch size of a small-sided games training (20x20 m. and 20x28 m.). The games consisted in 4x3 min. bouts interspersed with 3 min. active recovery and each games lasted 24-hour on separate occasions. HR was measured throughout the game. BL and RPE were recorded immediately after training. RPE using the Borg Scale (0-10 Scale). Data were statistically analyzed by mean, standard deviation and matched paired t-test. All testing used the 0.05 level of significant. The result showed the mean of HR and BL were significantly different between pitch sizes (p 0.05) (the 20x20 m. of training RPE = 4.3±0.7 and 20x28 m. training RPE =4.3±0.5). In conclusion, the pitch size 20x28 m. of training might be used for practice and give maximum benefit. (Journal of Sports Science and Technology 2014;14(1): 93 -104) KEYWORD: Small-Sided Futsal Games Training, Heart Rate, Blood Lactate, Rating Perceived Exertion
Perceived exertion
Exertion
Cite
Citations (0)
To examine the game characteristics and physiological (ie, blood lactate concentration) and perceptual (ie, rating of perceived exertion, RPE) responses during actual tennis competition in professional performers.Eight trained and internationally ranked (Association of Tennis Professionals rankings) male tennis players were studied during singles matches (best of three sets) played on an outdoor clay court surface during a professional, invitational tournament. Blood lactate concentrations (n = 53) and RPE (n = 113) were determined at selected change-overs during the game. The variables describing the characteristics of the matches, (a) duration of rallies (DRs); (b) rest time (RT); (c) effective playing time (EPT); and (d) shots per rally (SR), were determined from video recordings.The mean (SD) values for the match-play activity variables were DR 7.5 (7.3) s, RT 16.2 (5.2) s, EPT 21.5 (4.9%), SR 2.7 (2.2) shots. Average blood lactate concentration and RPE values were 3.8 (2.0) mmol/l and 13 (2). Blood lactate concentrations and RPE values were significantly higher (p<0.01) in service games than in receiving games. Both blood lactate concentration and RPE values were significantly correlated with SR and DR (r = 0.80 to 0.28; p<0.001).Blood lactate concentrations and RPE were found to be influenced by the characteristics of the match and the playing situation (ie, serving or returning). These specific situations might be used to alter the overload training stimulus during tennis on-court practice.
Perceived exertion
Exertion
Tournament
Match play
Cite
Citations (119)
1214 The purpose of this study was to investigate whether blood lactate concentrations (BLCs) could be reproduced corresponding to previously measured BLCs by using Borg's rate of perceived exertion (RPE) scale to determine exercise intensity at three different levels during a single 30 min exercise bout. Twelve subjects (4 M, 8 F; age: 26.5 ± 3.7 yr; Ht: 168.9 ± 8.3 cm; Wt: 68.2 ± 14.1 kg) completed an RPE estimation trial (a 3 min stage incremental treadmill protocol to volitional fatigue), practiced running at the workloads corresponding to their RPEs of 11, 14, and 16, and, one week after the practice run, completed the production trial (a continuous self-selected intensity run for 10 min at each RPE target value). Although the absolute BLCs at each RPE were higher than anticipated, dependent t-tests indicated that there was no significant difference in BLC, VO2, or HR between the two trials. (Table)TableThe results demonstrate that Borg's RPE scale can be used for self-regulated production of previously determined BLC levels and that intensity can be changed during a single bout of exercise to reflect different BLCs. These findings suggest that RPE may be used for exercise prescription when constant monitoring of BLC is neither desirable nor possible if individual BLC-RPE relationships have been pre-determined.
Exercise prescription
Perceived exertion
Treadmill
Exercise intensity
Intensity
Exertion
Incremental exercise
Cite
Citations (0)
The aim of this study was to investigate the use of incremental ergometry determined heart rate training intensities for the control of kayak ergometer and open water kayak training. Eight well-trained male kayakers completed a maximal incremental exercise test on an air-braked kayak ergometer for the determination of LT1 (the power output at which blood lactate concentration increased by ≥ 1 mmol × L-1), the associated heart rate (HR-LT1), V˙O2peak, maximal heart rate and maximal aerobic power. Subjects then performed 20 min trials of kayak ergometry (E), open water kayaking in a single kayak (K1) and open water kayaking in a four-seat kayak (K4) at HR-LT1. During the three trials, heart rate was continuously measured, and blood lactate concentration, rating of perceived exertion (RPE) and stroke rate were determined every 5 min. In all trials, exercise at HR-LT1 resulted in stable blood lactate concentrations and a stable RPE. Comparison of the three trials demonstrated that the only difference was for RPE, which was lower in (K4) than in (E), (p < 0.05). The results demonstrate that the prescription of HR-LT1 elicits similar blood lactate concentrations during kayak ergometer and open water kayak training in both single and team boats.
Exercise prescription
Bicycle ergometer
Open water
Lactate threshold
Cite
Citations (44)