Научная статья на тему 'Application of hypoxicators in the rowers’ training'

Application of hypoxicators in the rowers’ training Текст научной статьи по специальности «Науки об образовании»

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Ключевые слова
AEROBIC POWER / HEMOGLOBIN / HYPOXIA TRAINING / HYPOXICATOR / ROWERS / АЭРОБНАЯ СИЛА / ГЕМОГЛОБИН / ГИПОКСИЧЕСКАЯ ТРЕНИРОВКА / ГИПОКСИКАТОР / ГРЕБЦЫ / АЕРОБНА СИЛА / ГЕМОГЛОБіН / ТРЕНУВАННЯ ГіПОКСії / ГіПОКСИКАТОР / ВЕСЛЯРИ

Аннотация научной статьи по наукам об образовании, автор научной работы — Neykov S., Bachev V., Petrov L., Alexandrova A., Andonov S.

Intermittent altitude exposure leads to improvements in aerobic performance and blood parameters of athletes. The variety of hypoxic devices and simulated altitude training models requires a detailed study of their effects to achieve the best results. The aim of this study was to investigate the effect of a four-week training camp at sea level conditions, combined with normobaric hypoxia, provided by hypoxicators during the night's sleep of the athletes. Sixteen rowers of the Bulgarian national team (17.13±0.83 years old) were divided into a control group (n=8) and an experimental group (n=8) subjected to hypoxia for a period of four weeks. At the beginning and end of the training camp, anthropometric and hematological data were measured. A submaximal test on the Concept II rowing ergometer was performed, and the physical work capacity and anaerobic threshold were determined. The results showed: 1) a lack of significant changes in the aerobic performance after training camp, both within and between groups; 2) at the end of the training camp in the experimental group a statistically significant increase in hemoglobin concentration (156.25±4.11 vs 162.75±4.11 g/L, p<0.01) and erythrocyte count (5.26±0.13 vs 5.49±0.10 g/L, p<0.01) was observed. The encouraging results regarding the higher increase in blood oxygen-carrying capacity in the experimental group did not lead to an increased working capacity. Further research should be provided in the search for optimal hypoxic training parameters, allowing not only a rise in hemoglobin concentration, but also the preservation of blood rheological properties.

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Применение гипоксикаторов в тренировках гребцов

Прерывистое высотное воздействие приводит к улучшению аэробных показателей и показателей крови спортсменов. Разнообразие гипоксических устройств и моделируемых тренировочных высотных моделей требует детального изучения их воздействия для достижения наилучших результатов. Цель этого исследования состояла в том, чтобы изучить влияние четырехнедельного тренировочного лагеря в условиях уровня моря в сочетании с нормобарической гипоксией, которую обеспечивают гипоксикаторы во время ночного сна спортсменов. Шестнадцать гребцов болгарской сборной (17,13 ± 0,83 года) были разделены на контрольную группу (n = 8) и экспериментальную группу (n = 8), подвергавшуюся гипоксии в течение четырех недель. В начале и в конце тренировочного сбора были измерены антропометрические и гематологические данные. Был проведен субмаксимальный тест на гребном эргометре Concept II, определены физическая работоспособность и анаэробный порог. Результаты показали: 1) отсутствие значительных изменений аэробных показателей после тренировочного сбора как внутри, так и между группами; 2) в конце тренировочного лагеря в экспериментальной группе статистически значимое увеличение концентрации гемоглобина (156,25 ± 4,11 против 162,75 ± 4,11 г / л, р <0,01) и количества эритроцитов (5,26 ± 0,13 против 5,49 ± 0,10 г / л). р <0,01). Обнадеживающие результаты, касающиеся более высокого увеличения кислородоносности крови в экспериментальной группе, не привели к увеличению работоспособности. Необходимо провести дальнейшие исследования в поисках оптимальных параметров гипоксической тренировки, позволяющих не только повысить концентрацию гемоглобина, но и сохранить реологические свойства крови.

Текст научной работы на тему «Application of hypoxicators in the rowers’ training»

Monitoring training loads: from training to competition

Zeghari L.ABCD, Moufti H.ABCD, Arfaoui A.CD, Bougrine N.BD, Tanda N. BC

Royal Institute of Management training, National Center of Sports Moulay Rachid, Salé, Morocco

Authors' Contribution: A - Study design; B - Data collection; C - Statistical analysis; D - Manuscript Preparation;

E - Funds Collection.

Abstract

Purpose: Monitoring is a new method that allows coaches and physical trainers to manage training in order to

meet the needs of athletes. This study aims to evaluate through a scientific approach the homogeneity between the training program established by the coach in the pre-competition period, and the characteristics of the competition.

Material: The study was conducted at the FAR (Royal Armed Forces) Sports Association in Salé from February 10,

2019 to March 16, 2019, on a sample of 12 taekwondo athletes (5 girls and 7 boys), category "senior" with a middle age of 26.28 ± 1.97 for boys and 24.4 ± 3.32 for girls. The data collection concerns two different periods, the training and the competition period, in order to make a comparison between the different phases of the combat situations (preparation phase, exchange phase and recovery phase) during these two periods.

Results: For the combat in the training period we saw that the percentage of the preparation phase was 80.11%,

the exchange phase was 19.69%, and the recovery phase was 0.18%, however, in the competition period, the percentage of the preparation phase is 21.60%, the exchange phase is 39.84%, and the recovery phase is 38.54%. The study of the correlation between the three phases of combat in the training period and the competition shows that there is no link between the different phases except between the exchange phase and the recovery phase (sig = 0.021 < 0.05).

Conclusions: Our study was able to reveal that the requirements of the competition were not taken into consideration

by the coach, which influenced the performance of the athletes during the competition. Therefore, a monitoring program is necessary in order to better plan the training and even predict the results of the competition.

Keywords: monitoring, taekwondo, training load, performance, competition, combat, Morocco.

Introduction

In preparing an athlete for a competition, we must consider two important criteria: the training load and the fatigue. Generally, any coach seeks to push the fatigue limits without exceeding the threshold at which the athlete risks overtraining [1, 2]. This strategy is complicated to apply since a taekwondo coach addresses his/her athletes as a group and not as individuals, thus a standard workout can suit some athletes, while causing others to either under or over train, eventually impacting their competitiveness [3, 4].

Observing, monitoring and verifying the progress and quality of training over a set period of time are very important steps in determining if the training program is well suited for an athlete, and can help prevent injuries. This is defined as Monitoring. A new method that allows coaches and physical trainers to manage training to meet the needs of athletes [5]. The monitoring of athletes is becoming a necessity, and this to better understand the athlete and to know if the training carried out is coherent or not with the competition [6, 7]. Despite the lack of data on high level athlete's publications, athlete tracking can provide an explanation of performance changes. This can help reduce the degree of uncertainty related to the results during the competition. More importantly, load monitoring is also put in place to reduce the risk of injury, especially in combat sports as taekwondo [8].

Hypothesis: the surveillance of athletes training may help the coach to determine the problems related

© Zeghari L., Moufti H., Arfaoui A., Bougrine N., Tanda N., 2019 doi:10.15561/18189172.2019.0508

to the training program, in order to prevent any kind of overtraining or athletes exhaustion, and also for a better training planning which will be in correlation with the competition requirement.

Purpose: The objective of our study is to evaluate by a scientific approach the conformity between the training established by coaches in the phase of preparation, and the characteristics of the competition.

Material and methods:

Participants:

The studied population consisted of 12 "senior" taekwondo athletes (5 girls and 7 boys), with a mean age of 26.28 ± 1.97 for boys and 24.4 ± 3.32 years for girls. They practice at the Royal Armed Forces Sports Club of Salé "FAR" league center. These athletes were qualified for the finale of Morocco's championship.

Research design:

The study focuses on the collection of several variables described in Table 1 and 2, in two different periods, training and competition, in order to make a comparison between combat situations during training and competition, the number of athletes participating for the training phase was 12, of which only four will be followed in the competition phase due to the lack of materials and human resources to carry out the follow-up for the whole sample (12 athletes).

Statistical analysis

For the analysis of the link between the two groups we chose the study of correlation between the different phases

2019

Table 1. The different variables studied in the training phase

Training Phase:

Variables Objective

-time ;

Warm up -nature :

- General warm up ;

- Specific warm up ;

Recovery time The time taken for recovery

Cognitive engagement The time taken to explain the exercises by the coach.

Motor Engagement the application time of the exercises explained by the coach

- Number of fights;

Combat situation - The duration of each phase of the fight

- The techniques performed in each fight;

Return to the initial state Method with which the athletes return to the initial state (stretching ....)

Table 2. The different variables studied in the competition phase

Competition Phase Variables

Preparation Phase

Exchange Phase Referee phase

Recovery

Objective

This is the exploration phase, looking for rifts in the opponent's game, feints, false attacks, displacements, footwork.

As soon as one of the two fighters triggers an action, we enter a so-called exchange phase that ends with the last action of one of the two protagonists. An exchange is constituted at least by an action (kick or punch) or more. - The techniques performed in each fight

Corresponds to the time of passivity where the referee stops the game to

intervene and where the fighters do nothing.

-Nature:

-The number and duration of preparation of attack and displacement (active recovery).

_-The duration of passive recovery._

Table 3. Table representing the analysis of the warm-up part

Times_Duration (%)

T.T 26min (100%)

S.T 3min22s (11.53%%)

E.T = T.T-ST 23min22s (88,47%%)

Warming up:

This table presents the analysis of the warm-up part which lasts in total (TT) 26minutes, the stopping time (ST) is

3m22s and that of effort (ET) is 23min22s and represents a percentage of 88 , 47% of the total time.

Note: T.T: total time, S.T: stopping time, E.T: effort time, R: recovery.

Table 4. Table showing the analysis of the motor Engagement (effort time) part.

Times_Duration (%)_

E.T 32,84min (80,87%)

S.T 5min (9,85%%)

_R_3,98ms (9,80°%)_

Motor Engagement:

The table shows that the motor engagement time or the effort time represents 80.87% of the total time, the sopping time represents 9.85%, and the recovery time represents 9.80%._

Note: T.T: total time, S.T: stopping time, E.T: effort time, R: recovery.

of the combat in the training and in the competition, with the software SPSS version 25.

And for the monitoring and data collection we used: -An observation sheet; -A stopwatch; -A camera; -Software SPSS; -DARTFISH software.

Results

Training phase:

The average duration of sessions of the program 1h48min (tabl. 3, 4).

Recovery time analysis:

According to the analysis of this phase we note that the recovery was active with a percentage of 13.01% of the total time of the session which corresponds to 12min12s. Analysis of combat situations: According to the results obtained throughout the program, the time devoted to combat situations represents 8 minutes (11.13%) of the total time.

Analysis of the combat phases in the training: From the table below, we note that the percentage of the preparation phase is 80.11%, the exchange phase is 19.69%, and finally the recovery phase with a percentage of 0.18%.

Table 5. Evaluation of the combat phases in training training

Combat Phases Duration Percentage

Preparation phase 01min 07s 00ms 80,11%%

exchange phase 0min 31s 22ms 19,69%%

recovery phase 0min00s30ms 0,18%%

Competition phase:

This table represents the characteristics of each subject, as well as the results of the competition. Table 6. Characteristics of the subjects studied

subjects height weight gender competition

(m) (kg) result

1 1,93 87 male wins

2 1,71 58 female wins

3 1,60 46 male lose

4 1,90 68 female lose

Analysis of the combat phases for the 4 subjects From the table below, we note that the average percentage of the preparation phase is 21.60%, the exchange phase is 39.84%, and finally the recovery phase with a percentage of 38.54%.

Table 7. Evaluation of the combat phases in the competition.

Competition

combat phases Durée Percentage

preparation phase 01min 22s 00ms 21,60%%

exchange phase 2min 31s 22ms 39,84%

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recovery phase 2min26s30ms 38,54%%

-The correlation between combat in training and competition:

According to the table below, there is a difference between the techniques used, the number of shots and the points scored by each technique between the fight in the training phase and the fight in the competition phase.

From Table 9 we find that there is a significant correlation between the exchange phase and the recovery phase (sig = 0.021 <0.05). While there is no correlation between the other phases of training and competition.

Discussion

At the international level, many coaches and physical trainers are taking an increasingly scientific approach to design and monitor their training programs, whereas in Morocco these approaches are rarely used. This demonstrate itself by the huge lack of bibliography in this sense, despite the fact that the training supervision allows to reach a sufficiently large load to improve the targeted qualities, with managing the magnitude of the fatigue that can lead to the fateful threshold leading to the injury [9, 10]. With this in mind, we sought to identify the gaps that may exist between training and competition in the precompetitive period among qualified taekwondo athletes practicing within the FAR Sports Association in Salé, Morocco.

The descriptive analysis of the training phase allows us to see that the average duration of the sessions of the program that was 1h48min, the warm-up time lasts in total before each session 26 minutes which is a good result, due to the role warm-up in the prevention of injuries during intense training sessions [11].

The analysis of the training program allows us to say that the athletes work the same training program, which is explained by the fact that the coach does not follow the most important training principle, which is individualization. It is a fundamental factor for the progression of athletes, and allows to establish a training program according to the athlete's abilities, characteristics and needs [12-15].

Calculating the average part of the combat situation throughout the entire program, we found out its percentage to be around (11.13%). It is a very small and negligible result given that the athletes were in a pre-competition period. This negligible percentage does not benefit athletes since it doesn't give them the opportunity to experience combat situations as part of their training in order to ready themselves for real matches [12].

From these results, we found that there is no correlation between the different phases of the combat during training and during the competition, which proves that the training plan does not support the characteristics of the competition, except between exchange and recovery (sig = 0.021 <0.05), which can be explained by the fact that the more the exchange time (effort time) increases the more the athlete needs time to recover [16-19].

Several techniques used by the athletes in the competition have not been established in the training program namely; DWITT TCHAGUI for athlete number 2 and subject 4 on the table 8, who used this technique in

Table 8. Analysis of techniques used during training combat and those used in competitive combat:

Subjects Techniques Training Shots number points scored competition Shots number Points scored

YOPTCHAGUI 10 4 3 0

DOLYEU TCHAGUI 18 9 39 7

1 MON DOLYEU TCHAGUI 0 0 0 0

DWITT TCHAGUI 9 2 4 1

NELYEU TCHAGUI 5 0 2 3

PUNCHE 12 8 8 3

YOPTCHAGUI 12 3 1 1

DOLYEU TCHAGUI 24 8 20 1

2 MON DOLYEU TCHAGUI 0 0 0 0

DWITT TCHAGUI 0 0 13 2

NELYEU TCHAGUI 8 2 0 0

PUNCHE 12 4 17 3

YOPTCHAGUI 12 6 10 0

DOLYEU TCHAGUI 21 3 76 4

MON DOLYEU TCHAGUI 0 0 0 0

3 DWITT TCHAGUI 5 0 1 0

NELYEU TCHAGUI 4 3 0 0

PUNCHE 6 4 10 5

HITCHEU 2 0 0 0

YOPTCHAGUI 17 5 6 0

DOLYEU TCHAGUI 12 3 31 4

4 MON DOLYEU TCHAGUI 0 0 0 0

DWITT TCHAGUI 0 0 9 0

NELYEU TCHAGUI 2 0 2 0

PUNCHE 6 1 12 0

Table 9. Correlation between the preparation phase, exchange and recovery in training and competition.

Indicators Training phase Preparation Exchange Recovery

Preparation - C. c -Sig.(bilateral) 1,000 0,095 0,279

Competition 0,823 0,503

Exchange -C. c 0,095 1,000 0,786

Phase -Sig.(bilateral) 0,823 0,021*

Recovery - C. c -Sig.(bilateral) 0,279 0,503 0,786 0,021* 1,0000

. The correlation is significant at the 0.05 (bilateral). C.C: coefficient of correlation

the competition without being able to try it in the training period.

Conclusion

The monitoring or the surveillance of athletes using technological tools, can help the coach to fairly judge their athletes, and to better program trainings that are based on tangible data. This study revealed that the requirements of the competition were not taken in consideration by the coach, which influenced the performance of the athletes during the competition. However, this method can also be used to analyze the game of potential opponents during the preparation stage of competitions.

Thanks

To the entire staff of the Royal Armed Forces Sports Club of Salé, and especially to the coach Mr. Tanda Abdellah for his valuable contribution and advice throughout the realization of this work.

Contributions of the authors

All the authors contributed to the conduct of this work.

Conflicts of interest

There is no conflict of interest.

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Information about the authors:

Zeghari L.; (Corresponding author); https://orcid.org/0000-0001-6769-6864; zegharilotfi@gmail.com; Royal Institute of Management training, National Center of Sports Moulay Rachid, Salé; National Center of Sports Moulay Rachid, Road of Meknes Km 12, Salé, Morocco.

Moufti H.; http://orcid.org/0000-0001-6421-1454; h_moufti@yahoo.fr; Royal Institute of Management training, National Center of Sports Moulay Rachid, Salé; National Center of Sports Moulay Rachid, Road of Meknes Km 12, Salé, Morocco.

Arfaoui A.; http://orcid.org/0000-0002-5705-2536; amine_arfaoui@yahoo.fr; Royal Institute of Management training, National Center of Sports Moulay Rachid, Salé; National Center of Sports Moulay Rachid, Road of Meknes Km 12, Salé, Morocco.

Bougrine N.; https://orcid.org/0000-0002-6735-2823 ; Nadiabougrine68@gmail.com; Royal Institute of Management training, National Center of Sports Moulay Rachid, Salé; National Center of Sports Moulay Rachid, Road of Meknes Km 12, Salé, Morocco.

Tanda N.; https://orcid.org/0000-0002-6022-5055; tkd99naoual@gmail.com; Royal Institute of Management training, National Center of Sports Moulay Rachid, Salé; National Center of Sports Moulay Rachid, Road of Meknes Km 12, Salé, Morocco..

Cite this article as:

Zeghari L, Moufti H, Arfaoui A, Bougrine N, Tanda N. Monitoring training loads: from training to competition. Pedagogics, psychology, medical-biological problems of physical training and sports, 2019;23(5):262-266. https://doi.org/10.15561/18189172.2019.0508

This is an Open Access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (http://creativecommons.org/licenses/by/4.0/deed.en).

Received: 07.08.2019

Accepted: 25.07.2019; Published: 17.09.2019

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