Specific Endurance Research Articles

Special Endurance of Young Gymnasts: The Role of Aerobic Capacity in Fatigue Development in the Training

In artistic gymnastic alteration of all component of coordination capacities may related to fatigue. So the resistance to fatigue is a specific endurance component, which has direct relation to the techniques of gymnastic exercises. We supposed that changes of motor actions precise in the process of fatigue development during training sessions might presumably have a negative impact on the quality of performing complex gymnastic elements and combinations and set the goal to determine the significance level of aerobic capacity for special endurance. Twelve young skilled gymnasts aged 15-18 years measured the maximum oxygen consumption (VO2 max). During the training sessions specially designed tests of specific endurance were carried out, heart rate (HR) was measured and the quality of the presentation of the combinations was evaluated (by the sum of the judges' ratings of all the elements). The interrelation between VO2 max, HR in progress of gymnastic combinations and the quality of their performance were analyzed. Results showed that a higher aerobic capacity contributes to a relatively lower HR when performing intense gymnastic combinations and a slower development. Iof “coordination fatigue” t may be of special importance for young athletes at the stage of advanced specialization when a great volume of complex combinations is learned and thus, high volume of training loads is performed. According to obtained data use of the proposed endurance tests is of great importance for control of maintenance of aerobic capacities by young athletes. Account of the factors of “coordination fatigue” development, related to aerobic capacities, may be of special importance for young gymnasts at the stage of advanced specialization when a great volume of complex combinations is learned and thus, high volume of training loads is performed.

THE EFFECT OF BLOCK AND TRADITIONAL PERIODIZATION MODELS ON JUMPING AND SPRINTING DYNAMICS DURING THE SIMULATED BASKETBALL GAMES

Background. The aim of the study was to compare the effect of block and traditional periodization preseason preparation on advanced players’ jumping and sprinting dynamics during the simulated basketball games. Methods. Ten college-level males (age (mean ± standard deviation (SD)), 21.5 ± 1.7 years; weight, 83.5 ± 8.9 kg; height, 192.5 ± 5.4 cm) were divided into two teams according to the training model: block periodization (BP) and traditional periodization (TP). Block periodization (BP) consisted of the following blocks: aerobic endurance (AE), power endurance (PE), basketball specific aerobic endurance (BSAE), and power (P). Both groups played a simulated basketball game with each other before and after preseason preparation. Vertical countermovement jump and 20 meters sprint were measured before each simulated game and after each quarter of the game. Results. In BP, the 8 weeks of preseason training resulted in elevated vertical jump and 20 meters sprint dynamics during simulated games (p < .05). Conclusion. We conclude that 8 weeks of block periodization enhanced leg power production and sprint abilities during simulated games and therefore is more effective than traditional periodization model.

Effect of Variable-Intensity Running Training and Circuit Training on Selected Physiological Parameters of Soccer Players

Proper planning of the training process based on individual LT and AT metabolic thresholds is essential to improve athletic performance. Development of endurance in soccer players is mainly based on continuous runs and variable-intensity runs, supplemented with strength conditioning and sport-specific training. The aim of the study was to analyse selected parameters of physical capacity of soccer players after 8-week variable-intensity running training and circuit training. The experiment was carried out in a group of 34 soccer players aged 21 to 26 years. The athletes were divided into two groups: 17 people in the experimental group and 17 people in the control group. The experimental group was involved in 30-minute tempo runs two times a week for 8 weeks with variable intensity at AT. In the same period, the control group performed two 60-minute continuous runs at the intensity of 70-75%HRmax. The determination of metabolic thresholds used two indirect tests: the multistage shuttle run test (beep test) and maximal lactate steady state test (MLSS) with author's own modification. In order to evaluate maximal heart rate (HRmax), the research procedure was started from the beep test (distance: 20 m). The speed at the first level was 8.5 km/h and increased with each level by 0.5 km/h. Training of the experimental group where variable exercise intensity was used caused a statistically significant increase in HRmax (by 1.9%) and blood lactate levels at the AT (by 20.5%). The training in the experimental group led to the statistically significant (p < 0.05) increase in the parameters of the following variables: HRmax (by 1.9%); lactate level (by 7.85); HR at the AT (by 1,9%); lactate level at the AT (by 20.5%). The assumptions of the experimental training did not cause statistically significant changes in pretest vs. posttest HRmax and blood lactate levels for the LT. Endurance training with high intensity is more effective in soccer players compared to training with moderate intensity. Development of special endurance in soccer should also assume the intensity and method of working similar to the method used during sport competition.

Effects of periodization in long-term training on the dynamics of changes in punch endurance of a boxer – case study

Introduction. The aim of this work was to monitor the changes a boxer undergoes in the punch endurance test in relation to special training indicators and subsequently, by means of correlation of the time series, to determine the time shift of the delayed cumulative effect in long-term preparation of boxers. Material and methods. The work has an intraindividual basis. By means of the training logs, we recorded the special training indicators and periodization in the training cycles in accordance with the sporting calendar. The athlete under observation carried out a special punch endurance test on the punch bag in regular 4-week intervals, whose duration was identical with the competitive match. The test was issued by the International Boxing Association (AIBA) in the AIBA Coaches Manual (AIBA Coaches Commission, 2011). When correlating the time series, we used the Spearman’s correlation coefficient. The statistical significance of the relationships has been judged at a 20 % level of significance. Results. The average count in the punch endurance test was RTC1 830,17 ± 75,67 punches and RTC2 867 ± 40,36 punches. Statistically significant correlations with training means of speed endurance (SpdE) 1-2 time shifts (2-4 weeks) and sparring (TT S) 1-3 time shifts (2-6 weeks) have been demonstrated. Conclusions. In terms of the dynamics of changes in special punch endurance, the development copied the systematic periodization of training load, the level improved from accumulation, through the intensification up to the transformation stage, where the best test results were achieved before the top events.

Effects of Passive and Active Rest on Physiological Responses and Time Motion Characteristics in Different Small Sided Soccer Games.

The purpose of this study was to investigate the effects of resting regimes on physiological responses and time motion characteristics between bouts during small sided games (SSGs) in young soccer players. Sixteen players (average age 16.87 ± 0.34 years; body height 176.69 ± 3.21 cm; body mass 62.40 ± 2.59 kg; training experience 3.75 ± 0.44 years) performed four bouts 2-a-side, 3-a-side and 4-a-side games with three minutes active (SSGar: Running at 70% of HRmax) and passive (SSGpr) rest between bouts at two-day intervals. The heart rate (HR) along with total distance covered in different speed zones - walking (W, 0-6.9 km·h-1), low-intensity running (LIR, 7.0-12.9 km·h-1), moderate-intensity running (MIR, 13.0-17.9 km·h-1) and high-intensity running (HIR, >18km·h-1), were monitored during all SSGs, whereas the rating of perceived exertion (RPE, CR-20) and venous blood lactate (La-) were determined at the end of the last bout of each SSG. The results demonstrated that all SSGpr elicited significantly higher physiological responses compared to SSGar in terms of the RPE and La- (p < 0.05). In addition, 2-a-side SSGpr induced significantly lower %HRmax responses and total distance covered than 2-a-side SSGar (p < 0.05). Moreover, the distance covered at HIR was significantly higher in 4-a-side SSGar than 4-side SSGpr. The results of this study indicate that both SSGs with passive and active rest can be used for soccer specific aerobic endurance training. Furthermore, all SSGs with active recovery should be performed in order to increase players and teams’ performance capacity for subsequent bouts.

High-Intensity Small-Sided Games versus Repeated Sprint Training in Junior Soccer Players.

The aim of this study was to compare the effects of high-intensity small-sided games training (SSGT) versus repeated-sprint training (RST) on repeated-sprint ability (RSA), soccer specific endurance performance and short passing ability among junior soccer players. The junior soccer players were recruited from of a professional team (age 16.9 ± 1.1 years). The tests included the repeated-shuttle-sprint ability test (RSSAT), Yo-Yo Intermittent Recovery Test level 1 (Yo-Yo IR1) and Loughborough Soccer Passing Test (LSPT). Nineteen participants were randomly assigned to either the small-sided games training (SSGTG) (n = 10) or repeated-sprint training group (RSTG) (n = 9). Small-sided games or repeated-sprint training were added to the regular training sessions for two days of the regular practice week. The Wilcoxon signed-rank and Mann-Whitney U tests were used to examine differences in groups and training effects. A time x training group effect was found in the improvement of short-passing ability for the smallsided games training group which showed significantly better scores than the repeated-sprint training group (p ≤ 0.05). Both groups showed similar improvements in RSAdecrement (p < 0.05). Only the repeated-sprint training group improved in the Yo-Yo IR1 (p < 0.05). This study clearly shows that high-intensity small-sided games training can be used as an effective training mode to enhance both repeated sprint ability and short-passing ability.

EFFECTS OF SPEED, AGILITY AND QUICKNESS (SAQ) TRAINING ON ANAEROBIC ENDURANCE AND FLEXIBILITY OF NOVICE TENNIS PLAYERS

This study aims to analyse the effects of SAQ training on anaerobic endurance and flexibility of novice tennis players, selected subject from Ramanadan Krishnan Tennis Academy, Trivandrum, Kerala, India. Totally twenty participants were selected and randomly divided them into two groups (n=10) namely SAQ training group (age: 10.80 ± 0.78 years, height: 147.90 ± 2.60 cm and weight: 39.95 ± 1.51 kg) and control group (age: 11.10 ± 0.73 years, height: 147.30 ± 2.79 cm and weight: 40.12 ± 2.23 kg). After 12 weeks training, all subjects had tested their anaerobic endurance and flexibility according to Tennis Specific Agility Endurance Test and V-Sit and Reach Test. The data were analyzed by SPSS software, Paired-‘t’ test was used to determine the difference between pre and post mean scores of experimental and control groups and experimental group had improved more significantly (p<0.05) than the control group. The study suggests that SAQ training is more beneficial for anaerobic endurance and flexibility of novice tennis players. Article visualizations:

Analysis of the functional state of students in the process of healthy training exercises in different phases of the ovarian-menstrual cycle

Aim: to substantiate the application of a rational program of health-training sessions in the educational process of physical education of students in different phases of the ovarian-menstrual cycle. Material: in study participated students (n=127), who did not have deviations in health (the main medical group). According to the results of the tests were determined: heart rate; blood pressure; vital capacity of the lungs. To determine physical performance was used Harvard step-test. Physical exercises from the main means of health fitness were used differentially and dosed. Results: It was established that the consideration in the phases of the ovarian-menstrual cycle of indicators of the functional state, changes in well-being and working capacity give an opportunity: planning loads in the training process; adjustment of volume and intensity of loads. We recommend to schedule the load of our program as follows: in the menstrual phase - the development of flexibility (moderate load); in the postmenstrual phase - development of coordination, overall endurance; in ovulatory - speed development; in postovulatory - development of special endurance; in premenstrual - the development of strength, flexibility. In the postmenstrual and postovulatory phase, a high level of physical working capacity, functional state of the cardiopulmonary system has been registered. It also has a positive effect on body weight correction in the women students. Conclusions: When developing programs of health training sessions with women students it is necessary to take into account the phases of the ovarian-menstrual cycle.

Specific Physical Training in Elite Male Team Handball.

Wagner, H, Gierlinger, M, Adzamija, N, Ajayi, S, Bacharach, DW, and von Duvillard, SP. Specific physical training in elite male team handball. J Strength Cond Res 31(11): 3083-3093, 2017-Specific physical training in elite team handball is essential for optimal player's performance; however, scientific knowledge is generally based on temporary training studies with subelite athletes. Therefore, the aim of the study was to analyze the effects of specific physical training in an elite male handball team over the entire season. Twelve players of a male handball team from the First Austrian Handball League conducted a 1-year specific physical training program in addition to their normal (team handball techniques and tactics) weekly training. Performance was measured with 5 general and 4 specific tests as well as game statistics during competition. Repeated measures analysis of variances and paired sample t-test were used to analyze differences in performance during training. We found a significant increase in oxygen uptake, offense time, defense time, fast break time, and jump height in the specific tests. Game performance statistics revealed a lower throwing percentage in the hosting team (59%) compared with the rival teams (63%). Our results indicated that specific endurance and agility are an acceptable modality in elite male team handball. However, performance in competition is strongly influenced by specific techniques and tactics. We recommend to strength and conditioning professionals that they tailor strength and power training, coordination and endurance as specific as possible, using free weights, agility exercises that include change in direction and jumps as well as short (10-15 seconds) high-intensity intervals.

Вплив занять аеробного характеру на спеціальну витривалість студентів у групах зі спортивною спрямованістю (секційні заняття) настільний теніс

Vitaliy Hrynko &amp; Viktoriya Kudelko Purpose: experimentally to reveal the influence on the special endurance of aerobic activities (cross training and basic aerobics), which are included in the program of higher educational institutions of groups with sports orientation (sectional occupations) table tennis, and to explore the need to include these classes in the curriculum for physical education. Material &amp; Methods: analysis and generalization of literary sources, pedagogical observation, pedagogical experiment, modeling. In the experiment, 106 first-year students took part: (53 – control group and 53 – experimental). Results: technique of revealing the influence of aerobic training on the special endurance of students of groups with a sports orientation was tested; the effectiveness of the experimental technique of training for increasing special endurance was developed and proved. Conclusion: at this stage of the experiment, the effectiveness of the program was substantiated and proved with the inclusion of aerobic activities (cross training and basic aerobic elements) in the training groups on sporting orientation (sectional occupations) table tennis.

Adaptation of junior orienteers to loads, developing local-regional and special muscular endurance

Purpose: complex assessment of junior sport orientation athletes in conditions of concentrated training of local-regional muscular endurance and stroke loads (final part of preparation for competitions). Materials: in the research sport orientation athletes (n=34, age 13-16 years) participated. The athletes were divided into tested group (n=17) and group of comparison (n=17). In every group there were 17 boys and girls. The tested group consisted of volunteers, who practiced sport orientation. Comparison group included average distance and steeplechase runners. Results: In system of junior orienteers’ training we found: gender distinctions in carbohydrates and fats consumption (in the ranges of aerobic and anaerobic thresholds; substantial physiological changes in static-kinetic balance (tests with open and closed eyes. Dynamic coefficient of balance in main stance was better in sport orienteers, comparing with runners. Conclusions: it is recommended to fulfill exercises in conditions of stretching, combined with motor actions of speed-power orientation and relaxation.

Does small-sided games training improve physical fitness and team-sport-specific skills? A systematic review and meta-analysis.

This paper aimed to systematically review the training effects of small-sided games (SSG) on physical fitness and specific skills related to team sport according to the level of play and the period of the season. The search covered the following electronic databases (PubMed, Google Scholar, and ScienceDirect). The publications' search period ranged from 2000 to 2016. The terms (small-sided game, training, skill-based game, aerobic fitness, sprint, agility, jump and team sports) were used either singularly or combined in a systematic sequence. Appraisal of 16 articles (15 were analyzed) was performed after the application of exclusion criteria and quality assurance processes and the standardized mean effects were measured using random effects. The results revealed that SSG training had a large beneficial effect on maximal oxygen uptake V̇O2max (effect size 1.94; 95% CI: 0.15, 3.74; I2=94%), agility (-1.49; 95% CI: -2.27, -0.71; I2=80%), and repeated sprint ability (-1.19; 95% CI: -2.17, -0.21; I2= 53%). There was a moderate beneficial effect on 10- and 20-m sprint performance (-0.89; 95% CI: -1.7, -0.07; I2=88%), jump height (0.68; 95% CI: 0.03, 1.33; I2= 79%), and intermittent endurance (0.61; 95% CI: 0.17, 1.05; I2= 0%). The results also showed greater positive effects on specific skills (specific endurance and agility tests and techniques) after SSG when compared with generic or agility training. Small-sided games may represent an effective strategy of multicomponent training that can induce greater positive effects on specific skills tasks when compared with interval or agility training and moderate to large improvements in team sport-related physical fitness.

Motor tasks for special endurance development in skilled gymnasts in group exercises of rhythmic gymnastics

Specially selected motor tasks aimed at improving endurance in skilled gymnasts positively affect their body in group exercises . This is evidenced by HR decrease under load, a short and qualitative rest period as well as a significant reduction of errors during control performance of the competitive exercise.

Upper-Body Muscular Endurance Training Improves Performance Following 50 min of Double Poling in Well-Trained Cross-Country Skiers.

This study investigated the effect of muscular endurance training on O2-cost and performance in double poling (DP) on a rollerski treadmill. Twenty-two well-trained cross-country skiers (31 ± 4 years, 77 ± 9 kg, 181 ± 8 cm, VO2max running: 64 ± 5 mL·kg−1·min−1) were counter-balanced to either a combined muscular endurance and running interval training group [MET; n = 11 (♂ = 9, ♀ = 2)], or an endurance running interval training group [ET; n = 11 (♂ = 9, ♀ = 2)]. Both groups continued their normal low-and moderate intensity training, but replaced 2 weekly high intensity-training sessions with two project-specific sessions for 6 weeks. In these sessions, MET combined upper-body muscular endurance training (4 × 30 repetitions, 90 s rest between sets) and running intervals (3 × 4 or 2 × 6 min, 3 min rest), while ET performed running intervals only (6 × 4 or 4 × 6 min, 3 min rest). The DP test-protocol consisted of 50 min submaximal poling for O2-cost measurement, followed by a self-paced 1,000-m performance test. In addition, subjects performed a VO2max test in running. MET increased muscular endurance (P < 0.05) and 1RM in simulated DP (P < 0.01) more than ET. Further, MET reduced the 1,000-m time and O2-cost compared to baseline values (P < 0.05), and tended to improve the 1,000-m time more than ET (P = 0.06). There were no changes in VO2max running or VO2peak DP in either MET or ET. In conclusion, 6 weeks of muscular endurance training increased both muscular endurance and 1RM in simulated DP. Further, specific upper-body muscular endurance training improved DP performance and thus, seems as a promising training model to optimize performance in well-trained cross-country skiers.

Assessment of Special Endurance of Athletes in Freestyle Wrestling at the Preparatory Stage of a Sports Cycle

Assessment of Special Endurance of Athletes in Freestyle Wrestling at the Preparatory Stage of a Sports Cycle

REVIEW OF MATERIALS AND TECHNOLOGICAL METHODS USED IN THE MANUFACTURE OF ENDOPROSTHESIS IN TRAUMATOLOGY AND ORTHOPAEDICS

Traumas and diseases of the musculoskeletal system are the second among the causes of temporary disability of the population, and the third among the causes of disability and mortality. An effective method of treatment is endoprosthetics. ; Every year across the globe 500-1000 patients per 1 million of population require prosthetics. The development of endoprostheses is progressing in various spheres: design of the implant parts, methods of fixation, use of various materials, different types of surface finish of implants. Endoprostheses that are currently produced and used in traumatology and orthopaedics are unified, i.e. ; standardized - all of them have different size, but their shape is the same. This imposes serious limitations on the use of implantation in difficult clinical cases. The way out can be the use of personified implants, designed and manufactured with the use of modern rapid prototyping technologies. In this case, the use of titanium will fully implement the most important advantages of this direction: the best biocompatibility, high corrosion resistance, low modulus of elasticity, high specific strength and endurance.

When and Why Java was Deliberated from the Slavery?

Java islands as one of the colonies on the European nations in Asia, had several changes since the Dutch Government liquidated the operation. This condition was caused by the change of the political constellation in Europe since the end of this century. As we knew that since 1795 till 1813, the Netherland was dominated by the French. From the year 1795, in January, the Bataafsche Republic was established in Netherland, supported by French after the governor (Staathouder) escaped by leaving his country to London. The result of this fact, the changes were happened in all provinces in Netherland and in almost of its colonies, included in Java. The form of the government was changed because of the implementation of the French Revolutionary ideas. How to overlook the colonies were different compared by the VOC era. In VOC era, East India had been looked as the economical point of view. In the other hand, in Bataafsche Republic era, it had been considered as the integrated territory of French. So, there was a different management of both. During the VOC era, East India was placed under the Ministry of trade and colony regions. Then, in the Bataafsche Republic era, it was located under the Ministry of Maritime Army and the Colonies.The status of this colony was totally changed. The consequence of this change, there were a reformation of the social, politic and economic. The influences of the liberation idea, the main idea of French Revolution, was applied in almost all the regulations of its colony regions. Human rights guaranteed the rights not only as individual but also as a member of society. The Governor General deliberated all slaves in Java and others several islands to be trained as the soldiers.From the French point of view, Java would be set as centre of the French strategy in the effort to reoccupy India as before. According to Napoleon Bonaparte, India had natural resources more than the riches of all European kingdoms. So, the position of Java island geographically was very important because of his location was directly in front of India Ocean, and the military troupes could directly attack India. Java which was very rich of the natural resources as wood as the basic materials of ship industry, potassium nitrate, as the materials of ammunition and the Javanese who had the very special endurance were considered by the Emperor as a very ideal island. The Javanese could compete the Sepoy soldiers, the Indian indigenous soldiers formed by the British. So, Napoleon Bonaparte considered that the Javanese would be prepared to realize the Napoleonic strategy. Java had to be saved from the British attack.

Specific physiological and biomechanical performance in elite, sub-elite and in non-elite male team handball players

Team handball is a dynamic sport game that is played professionally in numerous countries. However, knowledge about training and competition is based mostly on practical experience due to limited scientific studies. Consequently, the aims of our study were to compare specific physiological and biomechanical performance in elite, sub-elite and in non-elite male team handball players. Thirty-six elite, sub-elite and non-elite male team handball players performed a game based performance test, upper-body and lower-body strength tests, 30-m sprint test, counter movement jump test and an incremental treadmill running test. Significant differences (P<0.05) were found for the peak oxygen uptake, heart rate, offense and defense time, jump height and ball velocity during the jump throw in the game based performance test, maximal oxygen uptake in the incremental treadmill running test as well as in maximal leg strength and leg explosive strength in the isometric strength test. Elite male players have an enhanced specific agility, a better throwing performance, a higher team handball specific oxygen uptake and higher leg strength compared to sub-elite and non-elite players. Based on these results we recommend that training in team handball should focus on game based training methods to improve performance in specific agility, endurance and technique.

Muscle Specific Endurance of the Lower Back Erectors using Electrical Twitch Mechanography

Lower back pain is a common symptom that may be associated with skeletal muscle dysfunction. PURPOSE: This study evaluated the endurance of the lower back muscles in healthy participants using accelerometer-based Mechanomyography (aMMG). METHODS: Surface electrodes and a tri-axial aMMG device were placed on the belly of the erector spinae muscles along the T11-L1 vertebrae. Current levels that evoked visible and tolerable twitch contractions were used. The muscles were stimulated for 3 minutes each at 2, 4, and 6 Hz. An endurance index (EI) was calculated as the maintenance of acceleration at the end of each stage of stimulation relative to the peak acceleration. Subjects (N=7) were tested on two separate days to assess reproducibility. Muscle oxygenation (HbO2) was measured with near infrared spectroscopy (NIRS) during stimulation and during a maximal isometric back extension to induce complete ischemia for signal calibration (N=5). EI was measured in the wrist flexor and vastus lateralis muscles for comparison. RESULTS: EI for the erector spinae muscles were 70.3 + 13.4%, 32.6 + 8.4%, and 19.2 + 6.2 % for 2, 4, 6 Hz, respectively. The coefficients of variation were 9.8%, 13.9%, and 20.3% for 2, 4, 6 Hz, respectively. EI values for the erector spinae were significantly lower than EI values for the arm and the leg (all comparisons, p &lt 0.05). HbO2 values for the erector spinae were 86.4 + 10.9 % at rest, and 77.2 + 15.5%, 84.3 + 14.1%, and 84.1 + 18.9% for 2, 4, 6 Hz, respectively. CONCLUSION: EI is a reproducible method of assessing muscle endurance of the lower back erector muscles that is not related to low oxygen levels. The erector spinae muscles have lower muscle endurance relative to limb muscles.:

Training of students’ special endurance in ping pong sport circles

Urpose: to test experimentally influence of aerobic trainings (cross country training and basic aerobic) on students’ special endurance in sport oriented groups (sport circles, ping pong). Material: 106 first year students (n=53 - control group and n=53 - experimental) participated in experiment. For determination of temporal series’ trends R-S analysis was used. Prognostication of mistakes’ quantity per one set was fulfilled with the help of exponential smoothing method. Results: it was shown that exponential smoothing method permits to prognosticate by one set ahead with rather high accuracy. As initial predictor we found mean quantity of mistakes in all sets. It permits to average all internal and external factors, which influence on the next predicting indicators. Such approach increases confidence of mistakes’ calculation in prognostication. Criteria of prognostication methodic for possible indicators’ values were also determined. Conclusions: the recommended time distribution in program is as follows: ping pong - 75%; cross country training and basic aerobic - 25%.