scholarly journals Technical Analysis and Heart Rate Response of Minifootball Players During a Competitive Match

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Jamel Halouani ◽  
Thouraya Mhenni ◽  
Nejah Kacem ◽  
Khaled Trabelsi ◽  
Cain Clark ◽  
...  
Keyword(s):  
Heart Rate ◽  
Body Mass ◽  
High Intensity ◽  
Heart Rate Response ◽  
Rest Heart Rate ◽  
Technical Analysis ◽  
Technical Ability ◽  
High Level ◽  
Number Of Passes

Objectives: The aim of this study was to investigate the technical actions and heart rate response of amateur minifootball players during a competitive match. Methods: Ten male amateur minifootball players (age: 26.3 ± 4.2 years, height: 176 ± 7.4 cm and body mass: 78.9 ± 10 kg), from a First Division Tunisian team, participated in a match (2 × 25-min with 10 min rest). Heart rate was recorded during the whole time that participants spent on court. The minifootball match was recorded and analyzed for technical actions (i.e., data pertaining to passes, shots, actions, duels, fouls) using InStat. Results: Results showed that a minifootball match induced an intensity of 84.2% heart rate max (HRmax) (i.e., high intensity). The percentage of success in actions was 53.33 % and in shots was 36.54 %. A large number of passes (400 (290 successful)) and duels (210 (145 successful)) was found both in offensive and defensive phases. Conclusions: A minifootball match is of high intensity and requires a high level of physical and technical ability.

scholarly journals FEATURES OF THE REACTION OF THE HEART RATE OF LABORATORY ANIMALS EXPOSED TO VARIOUS MODES OF MOTOR ACTIVITY DURING ADMINISTRATION β, α1 AND α2-ADRENO STIMULANTS

2021 ◽  
Vol 247 (3) ◽  
pp. 306-311
Author(s):  
A.V. Shigapova ◽  
◽  
I.H. Vakhitov ◽  
R.H. Ravilov ◽  
A.H. Volkov ◽  
...  
Keyword(s):  
Heart Rate ◽  
Motor Activity ◽  
Heart Rate Response ◽  
Laboratory Animals ◽  
Muscle Training ◽  
High Level ◽  
First Time

For the first time, studies have been conducted to study the features of the heart rate response of laboratory animals exposed to various modes of motor activity when administered β, α1 and α2-adrenostimulants. It was found that in animal’s subject to a regime of limited motor activity, i.e. hypokinesia, the heart rate response to the introduction of β and α1-adreno stimulators remains at a high level. It was revealed that the regime of systematic muscle training significantly contributes to the reduction of this reaction. It was found that in the process of systematic muscle training of animals, there is also a significant decrease in the heart rate response to the introduction of an α2-adrenostimulator. The hypokinesia mode keeps this reaction at a high level.

Physiological Response, Time–Motion Characteristics, and Reproducibility of Various Speed-Endurance Drills in Elite Youth Soccer Players: Small-Sided Games Versus Generic Running

2014 ◽  
Vol 9 (3) ◽  
pp. 471-479 ◽  
Author(s):  
Jack D. Ade ◽  
Jamie A. Harley ◽  
Paul S. Bradley
Keyword(s):  
Heart Rate ◽  
Blood Lactate ◽  
High Intensity ◽  
Heart Rate Response ◽  
Lactate Concentration ◽  
Blood Lactate Concentration ◽  
Soccer Players ◽  
Youth Soccer ◽  
Time Motion ◽  
Motion Characteristics

Purpose:To quantify the physiological responses, time–motion characteristics, and reproducibility of various speed-endurance-production (SEP) and speed-endurance-maintenance (SEM) drills.Methods:Sixteen elite male youth soccer players completed 4 drills: SEP 1 v 1 small-sided game (SSG), SEP running drill, SEM 2 v 2 SSG, and SEM running drill. Heart-rate response, blood lactate concentration, subjective rating of perceived exertion (RPE), and time–motion characteristics were recorded for each drill.Results:The SEP and SEM running drills elicited greater (P < .05) heart-rate responses, blood lactate concentrations, and RPE than the respective SSGs (ES 1.1–1.4 and 1.0–3.2). Players covered less (P < .01) total distance and high-intensity distance in the SEP and SEM SSGs than in the respective running drills (ES 6.0–22.1 and 3.0–18.4). Greater distances (P < .01) were covered in high to maximum acceleration/deceleration bands during the SEP and SEM SSGs than the respective running drills (ES 2.6–4.6 and 2.3–4.8). The SEP SSG and generic running protocols produced greater (P < .05) blood lactate concentrations than the respective SEM protocols (ES 1.2–1.7). Small to moderate test–retest variability was observed for heart-rate response (CV 0.9–1.9%), RPE (CV 2.9–5.7%), and blood lactate concentration (CV 9.9–14.4%); moderate to large test–retest variability was observed for high-intensity-running parameters (CV > 11.3%) and the majority of accelerations/deceleration distances (CV > 9.8%) for each drill.Conclusions:The data demonstrate the potential to tax the anaerobic energy system to different extents using speed-endurance SSGs and that SSGs elicit greater acceleration/deceleration load than generic running drills.

scholarly journals Exercise Intensity and Validity of the Ratings of Perceived Exertion (Borg and OMNI Scales) in an Indoor Cycling Session

2013 ◽  
Vol 39 (1) ◽  
pp. 93-101 ◽  
Author(s):  
José M. Muyor
Keyword(s):  
Heart Rate ◽  
Body Mass ◽  
Exercise Intensity ◽  
High Intensity ◽  
Perceived Exertion ◽  
Body Height ◽  
Total Duration ◽  
Rating Of Perceived Exertion ◽  
Heart Rate Reserve ◽  
Ratings Of Perceived Exertion

Abstract The purpose of the study was: 1) to determine the intensity of an indoor cycling session; 2) to know the correlation between the rating of perceived exertion (RPE) scales (Borg and OMNI) and % heart rate reserve (%HRR) with categories; and 3) to evaluate the validity of RPE scales (Borg and OMNI) with respect to the heart rate (HR) and %HRR. A total of fifty-three subjects, 25 males and 28 females (ages: 28.79 ± 6.04 years; body height: 1.71 ± 0.09 m; body mass: 69.59 ± 13.69 kg) were recruited from a private fitness club. All subjects performed the same predesigned indoor cycling session with a total duration of 50 minutes. During the experimental trial, the HR was recorded every 5 s. The Borg 6-20 RPE and OMNI 0-10 scales were used to assess perceived exertion in each phase. The average HR in the cardiovascular phase was 152.24 ± 14.11 b•min-1, the %HRR was 80.62 ± 7.10; and the overall RPE (Borg and OMNI scales) was 14.94 ± 1.11 and 7.18 ± 0.79 points, respectively. The correlation between an average HR and %HRR with Borg and OMNI scales was lower than r = 0.4 (p < 0.05). The correlation value between the Borg and the OMNI RPE scales was r = 0.82 (p < 0.001). It can be concluded that indoor cycling elicits effort of high intensity which could be inappropriate for some participants. The Borg and OMNI scales showed a low validity to quantify the intensity performed in indoor cycling sessions. It indicates the necessity to control the intensity of effort with other instruments to improve efficacy and decrease the risk of overload in this activity.

scholarly journals A 1-Minute Re-warm Up at High-Intensity Improves Sprint Performance During the Loughborough Intermittent Shuttle Test

2021 ◽  
Vol 11 ◽  
Author(s):  
Takuma Yanaoka ◽  
Risa Iwata ◽  
Akane Yoshimura ◽  
Norikazu Hirose
Keyword(s):  
Heart Rate ◽  
Body Mass ◽  
High Intensity ◽  
Maximal Voluntary Contraction ◽  
Test List ◽  
Team Sports ◽  
Voluntary Contraction ◽  
Sprint Performance ◽  
Warm Up ◽  
Loughborough Intermittent Shuttle Test

Although a 3- to 7-min re-warm up (RW) elicits performance and physiological benefits after half-time (HT), a time-efficient and feasible RW protocol is required for the use of an RW in the athletic setting. This study aimed to investigate the effect of a 1-min RW at high-intensity on the performance and physiological responses during the Loughborough Intermittent Shuttle Test (LIST). In a randomized and counterbalanced cross-over design, 12 male amateur intermittent team sports players (soccer, basketball, handball, and lacrosse; age, 22 ± 2 years; height, 1.70 ± 0.08 m; body mass, 65.1 ± 8.3 kg; body mass index, 22.4 ± 1.9 kg m−2; VO2max, 53.5 ± 4.5 ml kg−1 min−1) performed the LIST. The LIST comprised two 45-min halves separated by a 15-min HT. Each half comprised repetitions of exercise cycles consisting of 3 × 20-m walking, 1 × 20-m maximal sprint, 3 × 20-m jogging, and 3 × 20-m running. During the HT, the participants were assigned to a control trial (CON; 15-min seated rest) or an RW trial (1-min running at 90% of the maximal oxygen uptake after a 14-min seated rest). Compared to the CON, the RW prevents reductions in sprint performance at the fourth and sixth periods of the LIST (fourth: 2.4%, p = 0.002, d = 1.68, sixth: 3.6%, p = 0.012, d = 1.74) and a decrement of gastrointestinal temperature during HT (0.5°C, p = 0.010, d = 1.41). Moreover, the RW decreased the electromyogram amplitude of maximal voluntary contraction (MVC) after HT (12%, p = 0.017, d = 1.12) without a decrease of maximal voluntary contraction force, suggesting an increased neuromuscular efficiency (9%, p = 0.048, d = 0.58). The RW also increased the mean heart rate in the initial part of the second half (4 bpm, p = 0.016, d = 0.38). In conclusion, the RW improved sprint performance, core temperature, muscle activation, and heart rate in the second half of the LIST. The findings suggest that the RW should be recommended for intermittent team sports players when longer RWs are not possible.

scholarly journals Effects of Different Training Interventions on Heart Rate Variability and Cardiovascular Health and Risk Factors in Young and Middle-Aged Adults: A Systematic Review

2021 ◽  
Vol 12 ◽  
Author(s):  
Bernhard Grässler ◽  
Beatrice Thielmann ◽  
Irina Böckelmann ◽  
Anita Hökelmann
Keyword(s):  
Risk Factors ◽  
Systematic Review ◽  
Heart Rate ◽  
Heart Rate Variability ◽  
Body Mass ◽  
Physical Training ◽  
High Intensity ◽  
Cardiovascular Health ◽  
Middle Aged ◽  
Training Interventions

Introduction: Heart rate variability (HRV), the beat-to-beat variation of adjacent heartbeats, is an indicator of the function of the autonomic nervous system (ANS). Increased HRV reflects well-functioning of autonomic control mechanism and cardiovascular health. The aim of this systematic review is to provide a systematic overview of the effects of different physical training modalities on resting HRV and cardiovascular health and risk factors (i.e., baroreflex sensitivity, body fat, body mass, body mass index, blood pressure, heart rate recovery, VO2 max, and VO2 peak) in young and middle-aged (mean age of the studies samples up to 44 years), healthy adults.Methods: A systematic review in accordance with the PRISMA guidelines was performed. Studies investigating the effects of different physical interventions (endurance, resistance, high-intensity, coordinative, or multimodal training) on HRV were included. Trials were considered eligible if the intervention lasted for at least 4 weeks and participants were regarded as general healthy. Five electronic databases were searched from 2005 to September 8th, 2020. The methodological quality of eligible studies was assessed by two study quality and reporting assessment scales (TESTEX and STARDHRV). PROSPERO registration number: CRD42020206606.Results: Of 3,991 retrieved records, 26 were considered eligible and analyzed. Twelve studies used an endurance training (of which three included high-intensity sessions), six studies resistance training, four studies coordinative training, two studies high-intensity training, and two studies used a multimodal intervention. Overall, the results showed for all types of intervention an improvement in linear and non-linear HRV parameters and cardiovascular health and risk factors. However, quality assessment revealed some methodological and reporting deficits.Conclusion: This systematic review highlights the benefits of different types of physical training interventions on autonomic function and health parameters in young and middle-aged, healthy adults. In conclusion, higher training intensities and frequencies are more likely to improve HRV. For future studies, we recommend adhering to the criteria of methodological standards of exercise interventions and HRV measurements and encourage the use of non-linear HRV parameters.

scholarly journals FLUCTUATIONS IN HEART RATE RESPONSE AND EXTERNAL DEMANDS RELATIVE TO GAME PERIOD IN RECREATIONAL FOOTBALL

2019 ◽  
pp. 015
Author(s):  
Emilija Stojanović
Keyword(s):  
College Students ◽  
Heart Rate ◽  
Physical Fitness ◽  
Fat Mass ◽  
Effect Size ◽  
High Intensity ◽  
Heart Rate Response ◽  
Football Players ◽  
Paired Sample ◽  
Male College

This study aimed to investigate fluctuations in external demands and heart rate (HR) response across two game periods (half-times) in recreational football players. Eighteen recreationally active, male college students (goalkeepers: n = 2; outfield players: n = 16; age: 20.9 ± 1.5 yr; height: 179.4 ± 5.0 cm; body mass: 76.9 ± 8.1 kg; fat mass: 15.3 ± 5.5%) participated in this study. Two sessions were used to administer 4-a-side small-side games (SSG). Differences in activity demands and HR response were analyzed using a paired sample t-test. The magnitude of the differences in each dependent variable was quantified with effect size (ES) analyses and interpreted as: trivial, <0.2; small, 0.2–0.59; moderate, 0.6–1.19; large, 1.2–1.99; very large, >2. An ES analysis showed, small to moderate, significant decreases in distance covered at 0-6.00 km·h-1 (ES = -0.54, small), 6.01-12.00 km·h-1 (ES = -0.99, moderate), 12.01-18.00 km·h-1(ES = -0.66, moderate), >24 km·h-1 (ES = -0.72, moderate), total distance (ES = -0.91, moderate) and high-intensity accelerations (ES = -0.60, moderate) during the second rather than the first half. In addition, unclear significant decreases in HRmean, and percentage of time spent working 81-90% HRmax were observed across two game periods. Our findings indicate game-related fatigue, whereby players demonstrated a consistent HR response across two game periods despite diminutions in activity demands during the second half. Similarities in HR response across two game periods might be due to the lower physical fitness of recreational players, eliciting slower HR recovery.

scholarly journals Effects of pre-exercise acupuncture stimulation on heart rate response during short-duration exercise

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Hidehiro Nakahara ◽  
Shin-ya Ueda ◽  
Eriko Kawai ◽  
Rui Higashiura ◽  
Tadayoshi Miyamoto
Keyword(s):  
Heart Rate ◽  
Short Duration ◽  
High Intensity ◽  
Perceived Exertion ◽  
Heart Rate Response ◽  
High Intensity Exercise ◽  
Rating Of Perceived Exertion ◽  
Manual Acupuncture ◽  
Low Intensity ◽  
Acupuncture Stimulation

Abstract Background The purpose of the present study was to investigate the effects of bradycardia induced by pre-exercise acupuncture on heart rate responses during short-duration exercise. Methods A total of 29 healthy subjects underwent two protocols: protocol 1 assessed the effects of manual acupuncture on heart rate response during rest, and protocol 2 tested the hypothesis that the bradycardic effects induced by pre-exercise acupuncture continue during low- and high-intensity exercise. Their average age, height, weight, and body mass index were 21.2 ± 2.0 years, 167.2 ± 8.8 cm, 63.8 ± 12.8 kg, and 22.7 ± 3.5 kg/m2, respectively. In acupuncture stimulations for protocols 1 and 2, an acupuncture needle was inserted into the lower leg and manual acupuncture stimulation was performed at 1 Hz. Results In protocol 1 (resting condition), acupuncture stimulation induced a bradycardic response, which continued for 4 min after the cessation of acupuncture stimulation (p < 0.05). In protocol 2, the bradycardic response induced by pre-exercise acupuncture stimulation remained during low-intensity exercise and in the beginning of high-intensity exercise performed immediately after the cessation of acupuncture stimulation (p < 0.05). However, the effects disappeared when post-acupuncture exercise was performed when the heart rate was approximately 140 beats/min during high-intensity exercise. The rating of perceived exertion after exercise differed significantly between the acupuncture stimulation task (7.9 ± 1.6) and no-stimulation task (8.5 ± 2.0) (p = 0.03) only in the low intensity group. Conclusion This study may provide new insights into the effect of acupuncture stimulation on psycho-physiological conditions during exercise.

L-Arginine Improves Endurance to High-Intensity Interval Exercises in Overweight Men

2020 ◽  
pp. 1-9
Author(s):  
Ali Daraei ◽  
Sajad Ahmadizad ◽  
Hiwa Rahmani ◽  
Anthony C. Hackney ◽  
Kelly E. Johnson ◽  
...  
Keyword(s):  
Body Mass Index ◽  
Heart Rate ◽  
Body Mass ◽  
High Intensity ◽  
Cardiopulmonary Exercise Testing ◽  
Treadmill Running ◽  
Strenuous Exercise ◽  
Physiological Strain ◽  
Double Blind ◽  
High Intensity Interval

The effects of acute consumption of L-Arginine (L-Arg) in healthy young individuals are not clearly defined, and no studies on the effects of L-Arg in individuals with abnormal body mass index undertaking strenuous exercise exist. Thus, we examined whether supplementation with L-Arg diminishes cardiopulmonary exercise testing responses, such as ventilation (VE), VE/VCO2, oxygen uptake (VO2), and heart rate, in response to an acute session of high-intensity interval exercise (HIIE) in overweight men. A double-blind, randomized crossover design was used to study 30 overweight men (age, 26.5 ± 2.2 years; body weight, 88.2 ± 5.3 kilogram; body mass index, 28.0 ± 1.4 kg/m2). Participants first completed a ramped-treadmill exercise protocol to determine VO2max velocity (vVO2max), after which they participated in two sessions of HIIE. Participants were randomly assigned to receive either 6 g of L-Arg or placebo supplements. The HIIE treadmill running protocol consisted of 12 trials, including exercise at 100% of vVO2max for 1 min interspersed with recovery intervals of 40% of vVO2max for 2 min. Measurements of VO2 (ml·kg−1·min−1), VE (L/min), heart rate (beat per min), and VE/VCO2 were obtained. Supplementation with L-Arg significantly decreased all cardiorespiratory responses during HIIE (placebo+HIIE vs. L-Arg+HIIE for each measurement: VE [80.9 ± 4.3 L/min vs. 74.6 ± 3.5 L/min, p < .05, ES = 1.61], VE/VCO2 [26.4 ± 1.3 vs. 24.4 ± 1.0, p < .05, ES = 1.8], VO2 [26.4 ± 0.8 ml·kg−1·min−1 vs. 24.4 ± 0.9 ml·kg−1·min−1, p < .05, ES = 2.2], and heart rate [159.7 ± 6.3 beats/min vs. 155.0 ± 3.7 beats/min, p < .05, d = 0.89]). The authors conclude consuming L-Arg before HIIE can alleviate the excessive physiological strain resulting from HIIE and help to increase exercise tolerance in participants with a higher body mass index who may need to exercise on a regular basis for extended periods to improve their health.

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