scholarly journals Heart Rate Responses during Sport-Specific High-Intensity Circuit Exercise in Child Female Gymnasts

Sports ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 68
Author(s):  
Andreas Salagas ◽  
Olyvia Donti ◽  
Christos Katsikas ◽  
Gregory C. Bogdanis
Keyword(s):  
Heart Rate ◽  
High Intensity ◽  
Training Session ◽  
Rest Interval ◽  
Training Set ◽  
Peak Heart Rate ◽  
Circuit Training ◽  
Female Gymnasts ◽  
Maximal Effort ◽  
Circuit Exercise

This study examined heart rate (HR) responses during a sport-specific high-intensity circuit training session to indirectly assess cardiorespiratory stress in child athletes. Seventeen, female gymnasts, aged 9–11 years performed two 5-min 15 s sets of circuit exercise, interspersed by a 3 min rest interval. Each set included five rounds of five gymnastic exercises (7 s work, 7 s rest) executed with maximal effort. During the first circuit training set, peak heart rate (HR) was 192 ± 7 bpm and average HR was 83 ± 4% of maximum HR (HRmax), which was determined in a separate session. In the second set, peak HR and average HR were increased to 196 ± 8 bpm (p < 0.001, d = 0.55) and to 89 ± 4% HRmax (p < 0.001, d = 2.19), respectively, compared with the first set. HR was above 80% HRmax for 4.1 ± 1.2 min during set 1 and this was increased to 5.1 ± 0.4 min in set 2 (p < 0.001, d = 1.15). Likewise, HR was above 90% of HRmax for 2.0 ± 1.2 min in set 1 and was increased to 3.4 ± 1.7 min in set 2 (p < 0.001, d = 0.98). In summary, two 5-min 15 s sets of high-intensity circuit training using sport-specific exercises, increased HR to levels above 80% and 90% HRmax for extended time periods, and thus may be considered as an appropriate stimulus, in terms of intensity, for improving aerobic fitness in child female gymnasts.

scholarly journals Heart Rate Responses during High-Intensity Functional Training in Child Female Gymnasts

Proceedings ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 31
Author(s):  
Andreas Salagas ◽  
Olyvia Donti ◽  
Gregory C. Bogdanis
Keyword(s):  
Heart Rate ◽  
High Intensity ◽  
Recovery Period ◽  
Training Session ◽  
Female Child ◽  
Limited Information ◽  
Functional Training ◽  
High Intensity Training ◽  
High Intensity Interval ◽  
Female Gymnasts

AIM: Energy supply in artistic gymnastics is derived mainly through the anaerobic metabolism, due to the brief duration of the competitive routines. However, during training, gymnasts perform repetitive exercises and routines, which may require aerobic adaptations, in order to recover fast and maintain high quality of execution. To improve this aspect of fitness, coaches use high-intensity interval circuit training with sport-specific exercises. Despite the popularity of this training method, there is limited information regarding the demands placed on aerobic metabolism, especially in very young athletes. Thus, the aim of this study was to examine heart rate responses during a high-intensity functional training session in female child gymnasts, to indirectly assess the contribution of aerobic energy metabolism. MATERIAL & METHOD: Seventeen girls aged 9.8 ± 0.8 years (height, 1.38 ± 0.10 m; body mass, 33.7 ± 7.25 kg) performed two 5-min sets, each consisting of five rounds of five gymnastics exercises (5–7 s work and equal rest) executed at maximal effort. The two sets were separated by a 3-min recovery period. Prior to the main measurement, athletes performed a 20-m shuttle run test until exhaustion where maximum heart rate (HRmax) was measured and the maximum oxygen uptake (VO2max) was estimated. Heart rate was continuously monitored during all sessions using a Polar team 2 system. RESULTS: VO2max was 47.8 ± 3.0 mL kg-1 min-1 and HRmax was 207 ± 5 bpm. During the first set, peak HR was 192 ± 7 bpm and average HR was 171 ± 8 bpm (83% HRmax). During the second set, peak HR was 196 ± 8 bpm and average HR was increased to 186 ± 6 bpm (90% HRmax, p < 0.001 compared with set 1). The time during which HR was above 90% of HRmax was 2.0 ± 1.2min in set 1 and increased to 3.4 ± 1.7 min in set 2 (p < 0.01). HR recovery was similar after both sets, with HR decreasing by about 30% (to 139 ± 7 bpm and 134 ± 10 bpm) after 2 min (p < 0.001). CONCLUSION: These results suggest that high-intensity training using sport-specific exercises increases HR to levels above 90% HRmax for extended time periods. Thus, this type of training may be an appropriate stimulus for concurrent improvements in muscle strength/power and aerobic fitness.

scholarly journals Do Obese Children Achieve Maximal Heart Rate during Treadmill Running?

Sports ◽  
2019 ◽  
Vol 7 (1) ◽  
pp. 26
Author(s):  
Sveinung Berntsen ◽  
Elisabeth Edvardsen ◽  
Shlomi Gerbi ◽  
Magnhild Kolsgaard ◽  
Sigmund Anderssen
Keyword(s):  
Heart Rate ◽  
Children And Adolescents ◽  
Perceived Exertion ◽  
Treadmill Running ◽  
Maximal Heart Rate ◽  
Obese Children ◽  
Peak Heart Rate ◽  
Exercise Tests ◽  
Active Play ◽  
Maximal Effort

Objective: Maximal heart rate (HR) is commonly defined as the highest HR obtained during a progressive exercise test to exhaustion. Maximal HR is considered one of the criteria to assess maximum exertion in exercise tests, and is broadly used when prescribing exercise intensity. The aim of the present study was to compare peak HR measurements during maximal treadmill running and active play in obese children and adolescents. Design: Comparison of peak heart rate during active play vs. maximal treadmill running in 39 (7–17 years old, 18 males) obese children and adolescents. Methods: Heart rate was recorded during intensive active play sessions, as well as during a progressive running test on a treadmill until exhaustion. HR, respiratory exchange ratio (RER), and oxygen uptake were continuously measured during the test. The criteria for having reached maximal effort was a subjective assessment by the technician that the participants had reached his or her maximal effort, and a RER above 1.00 or reporting perceived exertion (RPE) above 17 using the Borg-RPE6–20-Scale. Results: Thirty-four children had a RER ≥1.00, and 37 reported a RPE ≥ 17. Thirty-two children fulfilled both criteria. During active play, peak HR was significantly (p < 0.0001) increased (4%) (mean and 95% confidence intervals; 204 (201, 207) beats/min), compared to during maximal treadmill running (196 (194, 199) beats/min), respectively. Conclusion: The results of the present study indicate that peak heart rate measurements during progressive running to exhaustion in obese children and adolescents cannot necessarily be determined as maximal heart rate.

Validation of an equine fitness tracker: heart rate and heart rate variability

2020 ◽  
pp. 1-10
Author(s):  
F. ter Woort ◽  
G. Dubois ◽  
M. Didier ◽  
E. Van Erck-Westergren
Keyword(s):  
Heart Rate ◽  
Heart Rate Variability ◽  
High Intensity ◽  
Pearson Correlation ◽  
Training Session ◽  
High Intensity Exercise ◽  
Thoroughbred Racehorses ◽  
Corrected Data ◽  
Validity Criteria ◽  
Fitness Tracker

The adoption of fitness tracker devices to monitor training in the equine market is in full expansion. However, the validity of most of these devices has not been assessed. The aim of this study was to examine the validity of heart rate (HR) and heart rate variability (HRV) measurements during high-intensity exercise by an integrated equine fitness tracker with an electrocardiogram (ECG) (Equimetre) in comparison to an ECG device (Televet). Twenty Thoroughbred racehorses were equipped with the two devices and completed a training session at the track. Data from 18 horses was readable to be analysed. Equimetre HR was compared to Televet HR derived from the corrected Televet ECG. HRV parameters were computed in a dedicated software (Kubios) on uncorrected and manually corrected ECG from both devices, and compared to the Televet corrected data. The HR was recorded on the entire training session and HRV parameters were calculated during the exercise and recovery periods. A strong correlation between the Equimetre HR and Televet HR on corrected data was found (Pearson correlation: r=0.992, P<0.001; root mean square error = 4.06 bpm). For HRV, the correlation was good for all parameters when comparing corrected Equimetre to corrected Televet data (Lin’s coefficient = 0.998). When comparing data obtained from uncorrected Equimetre data to the corrected Televet data, the correlation for HR was still good (Lin’s coefficient = 0.995) but the correlation for all HRV parameters was poor, except for the triangular index (Lin’s coefficient = 0.995). However, correlation between the uncorrected Televet HRV data and the corrected Televet data was equally poor (Lin’s coefficient <0.9). In conclusion, the integrated equine fitness tracker Equimetre satisfies validity criteria for HR monitoring in horses during high intensity exercise. When using corrected ECG data, it provides accurate HRV parameters as well.

Cardiometabolic and Perceptual Responses to Body-Weight Resistance High-Intensity Interval Exercise in Boys

2020 ◽  
pp. 1-8
Author(s):  
Jeanette M. Ricci ◽  
Todd A. Astorino ◽  
Katharine D. Currie ◽  
Karin A. Pfeiffer
Keyword(s):  
Heart Rate ◽  
Body Weight ◽  
High Intensity ◽  
Perceived Exertion ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Rating Of Perceived Exertion ◽  
Peak Heart Rate ◽  
Interval Exercise ◽  
High Intensity Interval

The majority of studies examining children’s responses to high-intensity interval exercise primarily utilized running; however, this modality does not require/include other important aspects of physical activity including muscular fitness. Purpose: To compare acute responses between a body weight resistance exercise circuit (CIRC) and treadmill-based (TM) high-intensity interval exercise. Method: A total of 17 boys (age = 9.7 [1.3] y) completed a graded exercise test to determine peak heart rate, peak oxygen uptake (VO2peak), and maximal aerobic speed. Sessions were randomized and counterbalanced. CIRC required 2 sets of 30-second maximal repetitions of 4 exercises. TM included eight 30-second bouts of running at 100% maximal aerobic speed. Both included 30-second active recovery between bouts. Blood lactate concentration was measured preexercise and postexercise. Rating of perceived exertion, affective valence, and enjoyment were recorded preexercise, after intervals 3 and 6, and postexercise. Results: Participants attained 88% (5%) peak heart rate and 74% (9%) VO2peak for CIRC and 89% (4%) peak heart rate and 81% (6%) VO2peak for TM, with a significant difference in percentage of VO2peak (P = .003) between protocols. Postexercise blood lactate concentration was higher following CIRC (5.0 [0.7] mM) versus TM (2.0 [0.3] mM) (P < .001). Rating of perceived exertion, affective valence, and enjoyment responses did not differ between protocols (P > .05). Conclusion: HR responses were near maximal during CIRC, supporting that this body-weight circuit is representative of high-intensity interval exercise.

Influence of players’ physical performances on the variation of the external and internal responses to repeated bouts of small-sided games across youth age categories

2021 ◽  
pp. 175433712110175
Author(s):  
Daniel Castillo ◽  
Javier Yanci ◽  
Javier Raya-González ◽  
Ángel Lago-Rodríguez
Keyword(s):  
Heart Rate ◽  
High Intensity ◽  
Soccer Players ◽  
Peak Heart Rate ◽  
Youth Soccer ◽  
Total Distance ◽  
Physical Performances ◽  
Training Impulse ◽  
And Training ◽  
Age Category

The aim of this study was twofold: (1) to test for differences on the external and internal responses encountered by youth soccer players during four bouts of 5-a-side small-sided game (SSG) across age categories and, (2) to analyze the external and internal responses attending to players’ sprinting and jumping profile within each age-category (i.e. under 14 (U14), under 16 (U16) and under 18 (U18)). Forty-eight young soccer players participated in this study and were distributed by each age-category. Players were classified based on jumping-profile (stronger and weaker) and sprint-profile (faster and slower). Also, players played four bouts of 4 min of a 5-a-side SSG, including goalkeepers. Likewise, external responses (i.e. total distance, distance covered at walking, jogging and high-intensity speeds, number of accelerations and decelerations, body impacts and player load) and internal responses (peak heart rate, % of peak heart rate and training impulse) were collected. The main results revealed a significant age-category by bout interaction for total distance covered, distance at jogging, number of accelerations, body impacts and player load for players from the U16 and U18 age categories, showing lower values during the last bouts, compared to the first bouts ( p ≤ 0.001–0.020, [Formula: see text] = 0.13–0.17). Moreover, while no significant ( p = 0.09–0.95) sprint-profile by bout interaction was found for the registered variables across age categories, stronger U18 players showed a smaller decrease across bouts for distance covered at high-intensity, compared to weaker U18 players. These findings suggest there is a need for coaching staff to include training strategies that allow for reducing accumulated neuromuscular fatigue in U16 and U18 age categories.

Influence of Rest Interval Length Between Sets on Blood Pressure and Heart Rate Variability After a Strength Training Session Performed By Prehypertensive Men

2016 ◽  
Vol 30 (7) ◽  
pp. 1813-1824 ◽  
Author(s):  
Tiago Figueiredo ◽  
Jeffrey M. Willardson ◽  
Humberto Miranda ◽  
Claudio M. Bentes ◽  
Victor Machado Reis ◽  
...  
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Strength Training ◽  
Training Session ◽  
Interval Length ◽  
Rest Interval

Effect of Environmental Temperature on High-Intensity Intervals in Well-Trained Cyclists

2019 ◽  
Vol 14 (10) ◽  
pp. 1401-1407 ◽  
Author(s):  
Jason R. Boynton ◽  
Fabian Danner ◽  
Paolo Menaspà ◽  
Jeremiah J. Peiffer ◽  
Chris R. Abbiss
Keyword(s):  
Heart Rate ◽  
Effect Size ◽  
Power Output ◽  
High Intensity ◽  
Environmental Temperature ◽  
Physiological Responses ◽  
Training Session ◽  
Mean Power ◽  
Optimal Power ◽  
Power Outputs

Purpose: To examine the effect of environmental temperature (TA) on performance and physiological responses (eg, body temperature, cardiopulmonary measures) during a high-intensity aerobic interval session. It was hypothesized that power output would be highest in the 13°C condition and lower in the 5°C, 22°C, and 35°C conditions. Methods: Eleven well-trained cyclists randomly completed 4 interval sessions at 5°C, 13°C, 22°C, and 35°C (55% [13%] relative humidity), each involving five 4-min intervals interspersed with 5 min of recovery. During the intervals, power output, core temperature (TC), skin temperature, VO2, and heart rate were recorded. Results: Mean session power output for 13°C (366 [32] W) was not higher than 5°C (363 [32] W; P = 1.00, effect size = 0.085), 22°C (364 [36] W; P = 1.00, effect size = 0.061), or 35°C (352 [31] W; P = .129, effect size = 0.441). The 5th interval of the 35°C condition had a lower power output compared with all other TA. TC was higher in 22°C compared with both 5°C and 13°C (P = .001). VO2 was not significantly different across TA (P = .187). Heart rate was higher in the 4th and 5th intervals of 35°C compared with 5°C and 13°C. Conclusions: This study demonstrates that while mean power outputs for intervals are similar across TA, hot TA (≥35°C) reduces interval power output later in a training session. Well-trained cyclists performing maximal high-intensity aerobic intervals can achieve near-optimal power output over a broader range of TA than previous literature would indicate.

scholarly journals Individual Adaptation in Cross-Country Skiing Based on Tracking during Training Conditions

Sports ◽  
2019 ◽  
Vol 7 (9) ◽  
pp. 211
Author(s):  
Martin ◽  
Hadmaș
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
High Intensity ◽  
Training Session ◽  
Functional Adaptation ◽  
Training Volume ◽  
Stress Indicator ◽  
High Intensity Training ◽  
Cross Country ◽  
Intensity Training

Research on heart rate (HR), mean arterial pressure (MAP) and blood pressure (BP) during specific training stages is less common in endurance athletes, whereas resting BP and HR are less studied in relationship to HRmax. In the current study, the objective was to conduct a medium-term HR, BP and MAP analysis while tracking individual training outcomes. The study was conducted during the 2017–2018 season, over 43 days and 1033 km of training volume, on 12 competitive male cross-country ski athletes. One VO2max test was performed 10 days before the start of the training program. After the test, training volume and intensity was preset for each subject, according to the general training methodology. Early morning HR, MAP and BP measurements were taken as part of the basic functional analysis. Training volume was correlated to both distance (p = 0.01, r = 0.85, CI95% = 0.80 to 0.88) and training HR%, namely the percentage of HRmax (p = 0.01, r = −0.47, CI95% = −0.58 to −0.34). Both the supine (sHR) and orthostatic HR (oHR) values were significantly correlated with the training intensity. We obtained a significant correlation between sHR and oHR values and the training objective (p = 0.01). An increased oHR was correlated to high intensity training activity (HIT) during the second training session (p = 0.01). Heart rate and blood pressure measurements represent predictive functional adaptation parameters over different training phases. We highlight a link between sHR, oHR, MAP data, and the athletes’ ability to perform in lower effort zones during physical exertion. However, we failed to validate MAP as a cardiovascular stress indicator following high intensity training.

Cardiorespiratory Responses to Constant and Varied-Load Interval Training Sessions

2020 ◽  
pp. 1-8
Author(s):  
Fernando G. Beltrami ◽  
Elena Roos ◽  
Marco von Ow ◽  
Christina M. Spengler
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
High Intensity ◽  
Pulmonary Ventilation ◽  
Lactate Concentration ◽  
Training Session ◽  
Blood Lactate Concentration ◽  
Interval Training ◽  
Active Recovery ◽  
Cardiorespiratory Responses

Purpose: To compare the cardiorespiratory responses of a traditional session of high-intensity interval training session with that of a session of similar duration and average load, but with decreasing workload within each bout in cyclists and runners. Methods: A total of 15 cyclists (maximal oxygen uptake [] 62 [6] mL·kg−1·min−1) and 15 runners ( 58 [4] mL·kg−1·min−1) performed both sessions at the maximal common tolerable load on different days. The sessions consisted of four 4-minute intervals interspersed with 3 minutes of active recovery. Power output was held constant for each bout within the traditional day, whereas power started 40 W (2 km·h−1) higher and finished 40 W (2 km·h−1) lower than average within each bout of the decremental session. Results: Average oxygen uptake during the high-intensity intervals was higher in the decremental session in cycling (89 [4]% vs 86 [5]% of , P = .002) but not in running (91 [4]% vs 90 [4]% of , P = .38), as was the time spent >90% of and the time spent >90% of peak heart rate. Average heart rate (P < .001), pulmonary ventilation (P < .001), and blood lactate concentration (P < .001) were higher during the decremental sessions in both cycling and running. Conclusions: Higher levels of physiological perturbations were achieved during decremental sessions in both cycling and running. These differences were, however, more prominent in cycling, thus making cycling a more attractive modality for testing the effects of a training intervention.

scholarly journals Acute Cardiometabolic Responses to Multi-Modal Integrative Neuromuscular Training in Children

2019 ◽  
Vol 4 (2) ◽  
pp. 39 ◽  
Author(s):  
Avery D. Faigenbaum ◽  
Jie Kang ◽  
Nicholas A. Ratamess ◽  
Anne C. Farrell ◽  
Mina Belfert ◽  
...  
Keyword(s):  
Heart Rate ◽  
Oxygen Uptake ◽  
Physical Fitness ◽  
Peak Oxygen Uptake ◽  
Moderate Intensity ◽  
Neuromuscular Training ◽  
Effective Strategy ◽  
Rest Interval ◽  
Peak Heart Rate ◽  
Experimental Conditions

Integrative neuromuscular training (INT) has emerged as an effective strategy for improving health- and skill-related components of physical fitness, yet few studies have explored the cardiometabolic demands of this type of training in children. The aim of this study was to examine the acute cardiometabolic responses to a multi-modal INT protocol and to compare these responses to a bout of moderate-intensity treadmill (TM) walking in children. Participants (n = 14, age 10.7 ± 1.1 years) were tested for peak oxygen uptake (VO2) and peak heart rate (HR) on a maximal TM test and subsequently participated in two experimental conditions on nonconsecutive days: a 12-min INT protocol of six different exercises performed twice for 30 s with a 30 s rest interval between sets and exercises and a 12-min TM protocol of walking at 50% VO2peak. Throughout the INT protocol mean VO2 and HR increased significantly from 14.9 ± 3.6 mL∙kg−1∙min−1 (28.2% VO2 peak) to 34.0 ± 6.4 mL∙kg−1∙min−1 (64.3% VO2 peak) and from 121.1 ± 9.0 bpm (61.0% HR peak) to 183.5 ± 7.9 bpm (92.4% HR peak), respectively. While mean VO2 for the entire protocol did not differ between INT and TM, mean VO2 and HR during selected INT exercises and mean HR for the entire INT protocol were significantly higher than TM (all Ps ≤ 0.05). These findings suggest that INT can pose a moderate to vigorous cardiometabolic stimulus in children and selected INT exercises can be equal to or more metabolically challenging than TM walking.

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