Anaerobic Power Test Research Articles

50 m Serbest Yüzme Performansının Alt Ekstremite Wingate Anaerobik Güç ve Kapasite Testi İle İlişkisi

Bu calismanin amaci, 50 m serbest yuzme performansinin alt ekstremite wingate anaerobik guc ve kapasite testi ile iliskisini incelemektir. Calismaya 11 erkek (yas: 13.45 ± 1.03 yil, boy: 166.18 ± 10.12 cm, vucut agirligi: 55.00 ± 11.13 kg, spor yasi: 6.2 ± 1.1 yil) performans yuzucusu gonullu olarak katilmistir. Tum deneklere ilk gun Wingate anaerobik guc ve kapasite testi, ikinci gun 50 m yuzme testi yapilmistir. Bu calismada 50 m serbest yuzme performansi standart bir atlama tasindan yapilmamistir, sporcu suyun icinden ve havuzun kenarindan yuzmeye baslamistir. Ayrica 10’ar metrelik gecis sureleri kayit edilmistir. Verilerin istatistiksel analizi Pearson Korelasyon analizi ile degerlendirilmis ve anlamlilik duzeyi olarak p 0.05). Yorgunluk indeksi ile relatif anaerobik kapasite, relatif minimum anaerobik guc ve minimum anaerobik guc arasinda istatistiksel olarak anlamli iliski bulunmustur (p 0.05). Yuzme performanslarindaki 10’ar metrelik gecis surelerinin Wingate anaerobik testi ile arasindaki iliskiye bakildiginda; yuzme maksimum hiz ile wingate anaerobik guc, yuzme ortalama hiz ile wingate anaerobik kapasite, yuzme minumum hiz ile wingate minumum guc degerleri arasinda hem relatif hem de absolut deger olarak istatistiksel olarak anlamli bir iliski bulunmustur (p 0.05). Bu sonucu; deneklerin spor yasi, profesyonellik duzeyi, suda ve karada yapilan aktivite arasindaki surtunme farki, ortam kosullari (nem, sicaklik vb.) gibi faktorler etkilemis olabilir

Physical and physiological characteristics of baseball trained adolescents

Aydin, G., Cakir Atabek, H., & Yilmaz, I. (2015). Physical and physiological characteristics of baseball trained adolescents. J. Hum. Sport Exerc., 9(Proc1), pp.S169-S175. The aim of the study is to contrast the physical characteristics of 13-16 years old baseball trained adolescents with the same age sedentary adolescents. Baseball trained adolescents (n=10), who were trained approximately 45 ± 10.67 month, and inactive adolescents (n=14) participated in this research voluntarily. Sit and reach flexibility test, 10-20-30 meter sprint test, active and squat jump tests, hand grip strength test, Wingate anaerobic power test were used to evaluate the physical characteristics of baseball trained adolescents and sedentary adolescents. As a result of the research there is no significant difference between the sedentary adolescents' and baseball trained adolescents' age, height, body mass, BMI, body fat percentage and sit-reach flexibility test values. There is a significant difference between the sedentary adolescents' and baseball trained adolescents' active and squat jump test, 10-20-30 meter sprint test, left and right hand grip strength test values (p≤0.05). Baseball play trained adolescents' active and squat jump test, 10-20-30 meter sprint test, left and right hand grip strength test values were found statistically higher than values of sedentary adolescents. Baseball trained adolescents' absolute peak power and absolute average power were determined higher than sedentary adolescents but no difference was found between the relative peak

Comparison of Aerobic and Anaerobic Power between University Men Football and Hockey Players

The purpose of the study was to compare the aerobic and anaerobic power between university men football and hockey players. To achieve the purpose of this study, thirty male football and thirty male hockey players were selected as subjects from the Department of Physical Education and Sports Sciences, Annamalai University and their ages ranged from 19 to 25 years. The criterion variables selected in present study were aerobic and anaerobic power. These were measured using 12 minutes run/walk test and Margaria Kalamen anaerobic power test. To compute the difference between football and hockey players independent t test was calculated. The result showed that there was no significant difference between football and hockey players on aerobic and anaerobic power (p > 0.05). It was concluded that there was no significant difference between football and hockey players in aerobic and anaerobic power. This may due to the fact that, basically football and hockey players having the same qualities aerobic and anaerobic performance. So, the difference may not be achieved between each of them.

Reliability and validity of a 20-s alternative to the wingate anaerobic test in team sport male athletes.

The intent of this study was to evaluate relative and absolute reliability of the 20-s anaerobic test (WAnT20) versus the WAnT30 and to verify how far the various indices of the 30-s Wingate anaerobic test (WAnT30) could be predicted from the WAnT20 data in male athletes. The participants were Exercise Science majors (age: 21.5±1.6 yrs, stature: 0.183±0.08 m, body mass: 81.2±10.9 kg) who participated regularly in team sports. In Phase I, 41 participants performed duplicate WAnT20 and WAnT30 tests to assess reliability. In Phase II, 31 participants performed one trial each of the WAnT20 and WAnT30 to determine the ability of the WAnT20 to predict components of the WAnT30. In Phase III, 31 participants were used to cross-validate the prediction equations developed in Phase II. Respective intra-class correlation coefficients (ICC) for peak power output (PPO) (ICC = 0.98 and 0.95) and mean power output (MPO) (ICC 0.98 and 0.90) did not differ significantly between WAnT20 and WAnT30. ICCs for minimal power output (POmin) and fatigue index (FI) were poor for both tests (range 0.53 to 0.76). Standard errors of the means (SEM) for PPO and MPO were less than their smallest worthwhile changes (SWC) in both tests; however, POmin and FI values were “marginal,” with SEM values greater than their respective SWCs for both tests values. Stepwise regression analysis showed that MPO had the highest coefficient of predictability (R = 0.97), with POmin and FI considerable lower (R = 0.71 and 0.41 respectively). Cross-validation showed insignificant bias with limits of agreement of 0.99±1.04, 6.5±92.7 W, and 1.6±9.8% between measured and predicted MPO, POmin, and FI, respectively. WAnT20 offers a reliable and valid test of leg anaerobic power in male athletes and could replace the classic WAnT30.

Acute Consumption of an Energy Drink Does Not Improve Physical Performance of Female Volleyball Players.

To determine the acute effect of an energy drink (ED) on physical performance of professional female volleyball players. 19 females (age= 22.3 ± 4.9 yr.; height= 171.8 ± 9.4 cm; weight= 65.2 ± 10.1 kg) participated in a randomized, crossover, double-blind study to measure grip strength, vertical jump and anaerobic power in 3 different sessions (ED, placebo [PL] or no beverage [CTL]). For each session, participants arrived in a fasted state, consumed a standardized breakfast meal, and 1 hr later completed the 3 baseline performance tests without having ingested the beverage. After completing the premeasurements, the athletes drank 6 ml/kg of body weight of the ED or PL and in the CTL condition no beverage was consumed. Posttest measurements were taken 30 min after the ingestion of liquids. A 3 × 2 repeated-measures ANOVA revealed no significant within-session and measurement time interactions for each performance test. Regardless of the measurement time, right hand grip strength was significantly higher in the ED condition (34.6 ± 0.9 kg) compared with PL (33.4 ± 1.1 kg) and CTL (33.6 ± 1.0 kg) (p < 0.05). Regardless of the beverage ingested, averaged right hand grip strength, taking into account all 3 testing conditions, increased from pre to posttesting (Pre = 33.8 ± 0.9 kg vs. Post = 33.9 ± 1.0 kg; p = 0.029), as did the averaged fatigue index, obtained from the anaerobic power test (Pre = 65.9± 2.2% vs. Post = 68.7± 2.0%; p= 0.049). The acute ingestion of an ED did not improve physical performance of professional Costa Rican female volleyball players.

The Effect of Eight-week Workout Specific to Basketball on some Physical and Physiological Parameters

This study has been carried out to research the effect of eight-week basketball workout on some physical and physiological parameters. The research has been applied to the athletes of Uşak Sports Inc. taking place in Beko Basketball League. The sportsmen average age 26,00±3,16 years, average height 196,62±9,91cm, average weight 196,62±9,91cm and body–mass index was 24,33±1,68kg/m2, have participated. Anaerobic power test (before and after the workout in preparation stage), aerobic power, lactate test (shortly after the practice and 3minutes later) the strength of hand grip, the strength of back-leg, flexibility test and some pulmonary function tests have been carried out. A non-parametric test, ‘wilcoxon signed ranks test’ has been used to evaluate the data. Significant variations between anaerobic power, aerobic power, flexibility, FVC, FEV1 values and lactate levels three minutes after the training, the values of back-leg strength (p<0,05) have been established from the result of the measurement. On the other hand, it has been determined that there is no statistically significant variation between lactate after the workout, the strength of right and left grip and FEV1/FVC values. (p>0,05). As a result, it was seen that the eight-week workout specific to basketball held during the preparation stage improved some physical and physiological properties of sportsmen. It was found out that their lactate tolerance was increased. Therefore, their recovery time shortened and readiness level increased.

Prediction of rowing ergometer performance from functional anaerobic power, strength and anthropometric components.

The aim of this research was to develop different regression models to predict 2000 m rowing ergometer performance with the use of anthropometric, anaerobic and strength variables and to determine how precisely the prediction models constituted by different variables predict performance, when conducted together in the same equation or individually. 38 male collegiate rowers (20.17 ± 1.22 years) participated in this study. Anthropometric, strength, 2000 m maximal rowing ergometer and rowing anaerobic power tests were applied. Multiple linear regression procedures were employed in SPSS 16 to constitute five different regression formulas using a different group of variables. The reliability of the regression models was expressed by R2 and the standard error of estimate (SEE). Relationships of all parameters with performance were investigated through Pearson correlation coefficients. The prediction model using a combination of anaerobic, strength and anthropometric variables was found to be the most reliable equation to predict 2000 m rowing ergometer performance (R2 = 0.92, SEE= 3.11 s). Besides, the equation that used rowing anaerobic and strength test results also provided a reliable prediction (R2 = 0.85, SEE= 4.27 s). As a conclusion, it seems clear that physiological determinants which are affected by anaerobic energy pathways should also get involved in the processes and models used for performance prediction and talent identification in rowing.

Validity and Reliability of the Hawaii Anaerobic Run Test

This study examined the reliability and validity of the Hawaii anaerobic run test (HART) by comparing anaerobic capacity measures obtained to those during the Wingate Anaerobic Test (WAnT). Ninety-six healthy physically active volunteers (age, 22.0 ± 2.8 years; height, 163.9 ± 9.5 cm; body mass, 70.6 ± 14.7 kg; body fat %, 19.29 ± 5.39%) participated in this study. Each participant performed 2 anaerobic capacity tests: the WAnT and the HART by random assignment on separate days. The reliability of the HART was calculated from 2 separate trials of the test and then determined through intraclass correlation coefficients (ICCs). Blood samples were collected, and lactate was analyzed both pretest and posttest for each of the 2 exercise modes. Heart rate and rate of perceived exertion were also measured pre- and post-exercise. Hawaii anaerobic run test peak and mean momentum were calculated as body mass times highest or average split velocity, respectively. Intraclass correlation coefficients between trials of the HART for peak and mean momentum were 0.98 and 0.99, respectively (SEM = 18.8 and 25.7, respectively). Validity of the HART was established through comparison of momentum on the HART with power on the WAnT. High correlations were found between peak power and peak momentum (r = 0.88), as well as mean power and mean momentum (r = 0.94). The HART was considered to be a reliable test of anaerobic power. The HART was also determined to be a valid test of anaerobic power when compared with the WAnT. When testing healthy college-aged individuals, the HART offers an easy and inexpensive alternative maximal effort anaerobic power test to other established tests.

A Comparison of the Wingate Anaerobic Power Test Employing Two Different Resistance Settings

A Comparison of the Wingate Anaerobic Power Test Employing Two Different Resistance Settings

Determination of the optimal load setting for arm crank anaerobic testing in men and women.

This study compared different relative load factors for eliciting the highest peak 5 s and mean 30 s absolute power output (watts) during an arm crank 30 s Wingate anaerobic power test in 40 upper body trained and recreationally active men and women. The relative load factor of 0.075 kg · kg(- 1) BM elicited a higher peak 5 s power output than 0.070 and 0.080 kg · kg(- 1) for trained males, and 0.070 was higher than 0.055 and 0.080 kg · kg(- 1) for active males (P<0.05). In trained women, the peak 5 s power output was greatest at 0.065 kg · kg(- 1) and 0.060 kg · kg(- 1) for active women. Mean 30 s power output at a relative load factor of 0.060, 0.065 and 0.070 kg · kg(- 1) was higher than 0.080, 0.085 and 0.090 kg · kg(- 1) in trained men, and mean power output at 0.080 kg · kg(- 1) was lower than all other relative load factors in active men (P<0.05). Mean 30 s power was greatest at 0.050 kg · kg(- 1) for trained and active women. In conclusion, the optimal relative load factor was different for eliciting peak 5 s and mean 30 s power outputs during an arm crank Wingate anaerobic test and depends on training status and gender.

Kansas Squat Test

The purposes of this study were to establish stability reliability of a measure of lower-body anaerobic power, the Kansas squat test (KST), and to compare the KST with the commonly used Wingate anaerobic test (WAnT) for lower-body power. Fourteen resistance-trained men (mean ± SD; age = 24.2 ± 3.6 years) performed both the KST and the WAnT twice on separate occasions. The KST consisted of using an external dynamometer to measure mean repetition power while performing 15 repetitions of speed squats using 70% of 1 repetition maximum system mass (barbell + body mass), initiating each repetition at 6-second intervals. Repetition power, mean power for all 15 repetitions, and % fatigue for the KST were all reliable (intraclass correlation coefficient = 0.754-0.937; p ≤ 0.05). There were no differences between tests for the mean power for all repetitions or relative fatigue (p ≤ 0.05) and no significant differences between tests for any individual repetition (test × repetition interaction, p < 0.05). Although absolute values were different (p > 0.05), significant correlations were found between the KST and WAnT for mean (r = 0.752) and maximum (r = 0.775) test powers but not for relative fatigue (r = 0.174). Lactate (HLa) responses were greater for the WAnT compared with the KST. These data indicate that the KST is reliable for resistance-trained men, and that measures of maximum and mean test powers for the KST are highly correlated to those values for the WAnT, but fatigue rates and HLa responses were not correlated. It appears that the KST is a lifting-specific anaerobic power and power endurance test that emphasizes phosphagen metabolism and may be used to assess training-induced changes in lower-body power.

무산소성 운동이 경력별 레슬링 선수의 피로물질 및 기초체력에 미치는 영향

본 논문은 경력별 레슬링선수들을 대상으로 최대무산소성 운동 후 회복과정과 기초체력을 알아보기 위한 실험이다. 첫째, 무산소 파워 테스트에서 집단 및 시기별 결과는 PP, MP, LP 영역에서 집단간 유의한 차이가 나타나지 않았다. 둘째, 혈중 글루코스는 시기별 결과 경력 5년차 레슬링 선수집단에서 유의한 차가 나타났다(p<.001). 셋째, 혈중 젖산농도는 시기별 결과 경력 5년, 10년, 15년 모두 나타났다(p<.001). 넷째, 사이드스텝과 전신반응은 세 집단 모두 유의한 차이가 나타나지 않았다. 결론적으로 무산소성 운동 후 선수들의 경기력에 영향을 미치는 무산소 파워, 글루코스, 젖산, 기초체력반응 변화에서 증가와 감소를 나타내고 유의한 차이도 보였다. 그리고 경력에 상관없이 피로회복도에서는 모두 유의한 차이를 보였다. 기초 체력반응에서는 경력 10년 선수집단이 우수한 것으로 생각된다. 그리고 파워 테스트와 글쿠코스 변인에서는 경력 5년차 선수집단이 우수한 것으로 생각된다. 피로도에서도 경력 15년차 선수집단에서 회복능력이 떨어지는 것은 경력과 연령에서의 상관관계가 있는 것으로 나타났다. This study is an experiment to look into recovering process after maximum anaerobic exercise of career wrestlers and their basic fitness. First, group time results in anaerobic power test did not show meaningful differences between groups in PP, MP, LP field. Second, blood glucose showed meaningful difference in 5-year wrestlers group according to time-wise result (p<.001). Third, time-wise results in blood lactic acid concentration showed meaningful difference all in 5-year, 10-year and 15-year career wrestlers group (p<.001). Fourth, side step and general reaction did not show meaningful differences in all the 3 groups. In conclusion, increase or decrease was seen from and also significant differences were seen from the change of anaerobic power, glucose, lactic acid, concentration, basic physical strength reaction which have influence over athletic performance of players after anaerobic exercise. It was found that 5-year career players group was good at variables of power test and glucose. Reason why recovery capability in connection with degree of fatigue was poor in 15-year career players group seemed to have correlation between career and age.

Evaluation of physical fitness parameters in patients with schizophrenia

The aims of this study were to compare aerobic and anaerobic exercise capacities, pulmonary functions, body composition and fat distribution parameters in patients with schizophrenia and healthy controls and to investigate the associations among these parameters. Sixty (30 male, 30 female) patients with schizophrenia and 60 (30 male, 30 female) healthy controls were included in the study. Maximal aerobic capacity was estimated with the Astrand submaximal exercise protocol, and anaerobic performance was determined with a Wingate test. Body composition was established with a bioelectrical impedance analyzer. Pulmonary function tests, skinfold thickness and body circumference measurements were also carried out. Maximal aerobic capacity, maximal anaerobic power, anaerobic capacity and pulmonary function tests (forced vital capacity and maximal voluntary ventilation) were found to be lower in male and female schizophrenic groups as compared to the controls. Body fat percentage, waist and abdomen circumferences, and waist to hip ratio were found to be higher in female schizophrenic patients than in controls. We suggest that maximal aerobic capacity, maximal anaerobic power, and anaerobic capacity are poor in the schizophrenia patients as compared to healthy controls. Low cardiorespiratory fitness is related to reduced pulmonary function and impaired body composition in schizophrenia patients.

Effect of a therapeutic dose of pseudoephedrine on swimmers’ performance

Background. The potential performance-enhancement effect of pseudoephedrine (PSE) use has led to its prohibition in competition sports (urine concentrations &gt;150 μg/ml). Data are, however, scarce regarding whether therapeutic PSE use enhances swimming performance.Objective. To investigate the effect of therapeutic PSE use on performance in aerobic and explosive sprint swimming events.Method. A double-blinded cross-over study design was used. Participants in the control group initially received a placebo and those in the experimental group received a divided PSE dose of 90 mg/d. Anaerobic power (50 m sprint) and aerobic (2 000 m) swimming testing was conducted at (i) baseline; (ii) after ingestion of a placebo or PSE; and (iii) after the groups were crossed over, following a wash-out period of 4 days, to determine changes in performance between trials.Results. The participants (mean age 44 years; N=7) were competitive masters swimmers with normal resting heart rates (68 beats per minute (bpm); standard deviation (SD) ±14) and blood pressures (BPs) (171 (SD ±27)/83 (SD ±16) mmHg). The use of PSE during the anaerobic swim test showed only a trivial chance (68%) of improvement, with a likely enhancement in systolic BP (86%). The aerobic swim test did not affirm performance enhancement as measured by time to completion (52% chance of a positive effect; 41% chance of a negative effect), nor did any other physiological variable of interest (peak heart rate and exercising BP) differ significantly from baseline results.Conclusion. The use of a therapeutic amount of PSE in short and endurance swimming trials did not appear to have any major ergogenic effect on performance.

Effect of a therapeutic dose of pseudoephedrine on swimmers’ performance

Background. The potential performance-enhancement effect of pseudoephedrine (PSE) use has led to its prohibition in competition sports (urine concentrations &gt;150 μg/ml). Data are, however, scarce regarding whether therapeutic PSE use enhances swimming performance.Objective. To investigate the effect of therapeutic PSE use on performance in aerobic and explosive sprint swimming events.Method. A double-blinded cross-over study design was used. Participants in the control group initially received a placebo and those in the experimental group received a divided PSE dose of 90 mg/d. Anaerobic power (50 m sprint) and aerobic (2 000 m) swimming testing was conducted at (i) baseline; (ii) after ingestion of a placebo or PSE; and (iii) after the groups were crossed over, following a wash-out period of 4 days, to determine changes in performance between trials.Results. The participants (mean age 44 years; N=7) were competitive masters swimmers with normal resting heart rates (68 beats per minute (bpm); standard deviation (SD) ±14) and blood pressures (BPs) (171 (SD ±27)/83 (SD ±16) mmHg). The use of PSE during the anaerobic swim test showed only a trivial chance (68%) of improvement, with a likely enhancement in systolic BP (86%). The aerobic swim test did not affirm performance enhancement as measured by time to completion (52% chance of a positive effect; 41% chance of a negative effect), nor did any other physiological variable of interest (peak heart rate and exercising BP) differ significantly from baseline results.Conclusion. The use of a therapeutic amount of PSE in short and endurance swimming trials did not appear to have any major ergogenic effect on performance.

Effect of a therapeutic dose of pseudoephedrine on swimmers’ performance

Background. The potential performance-enhancement effect of pseudoephedrine (PSE) use has led to its prohibition in competition sports (urine concentrations &gt;150 μg/ml). Data are, however, scarce regarding whether therapeutic PSE use enhances swimming performance.Objective. To investigate the effect of therapeutic PSE use on performance in aerobic and explosive sprint swimming events.Method. A double-blinded cross-over study design was used. Participants in the control group initially received a placebo and those in the experimental group received a divided PSE dose of 90 mg/d. Anaerobic power (50 m sprint) and aerobic (2 000 m) swimming testing was conducted at (i) baseline; (ii) after ingestion of a placebo or PSE; and (iii) after the groups were crossed over, following a wash-out period of 4 days, to determine changes in performance between trials.Results. The participants (mean age 44 years; N=7) were competitive masters swimmers with normal resting heart rates (68 beats per minute (bpm); standard deviation (SD) ±14) and blood pressures (BPs) (171 (SD ±27)/83 (SD ±16) mmHg). The use of PSE during the anaerobic swim test showed only a trivial chance (68%) of improvement, with a likely enhancement in systolic BP (86%). The aerobic swim test did not affirm performance enhancement as measured by time to completion (52% chance of a positive effect; 41% chance of a negative effect), nor did any other physiological variable of interest (peak heart rate and exercising BP) differ significantly from baseline results.Conclusion. The use of a therapeutic amount of PSE in short and endurance swimming trials did not appear to have any major ergogenic effect on performance.

마우스가드의 형태가 운동선수의 체력 및 운동능력에 미치는 영향

본 연구의 목적은 마우스가드의 착용이 기초 체력 및 운동 능력에 미치는 영향을 밝히는데 있다. 특히 부분피개 마우스가드 착용의 효과를 파악하여 교합의 안정성이 기초 체력 및 운동 능력에 미치는 영향을 밝히고자 한다. 이를 위해 K대학교 체육교육과에 재학 중인 대학생 20명을 대상으로 5가지 교합상태-마우스가드 미착용, 전악피개 마우스가드 착용, 좌우측 편측 마우스가드 착용, 전치부 마우스가드 착용-에서 각각 사이드스텝, 제자리 높이뛰기, 배근력, 악력, 외발서기, 유연성과 같은 기초 체력 및 운동능력을 측정하였다. 본 연구의 결과 전악피개 마우스가드의 착용은 운동능력 측정 항목 중 사이드스텝, 제자리 높이뛰기, 배근력, 악력, 외발서기, 유연성, 전신반응 모두에서 마우스 가드 미착용 시와 비교하여 유의성 있는 차이가 나타나지 않았다. 하지만 부분피개 마우스가드의 착용 시에는 미착용 시에 비해 전신반응이 유의성 있게 향상되었다. 이러한 결과를 통해 전악피개 마우스가드의 착용이 운동능력에 유의한 영향은 없으나 부분피개 마우스가드의 착용은 민첩성 향상에 기여할 수 있는 것으로 사료된다. 뿐만 아니라 교합적인 안정성이 단기적으로는 전신반응의 향상에 긍정적인 효과를 발생시키지 못하는 것으로 판단된다. This study examined the effects of the occlusal stability and a partial coverage mouthguard on physical fitness and motor capacity to determine the importance of the occlusal stability as a possible action mechanism of mouthguards on physical performance. Twenty physical education students were included for measurements of their handgrip strength, back strength, whole body reaction time, flexibility, sidestep test, stork stand test and jumping test according to the following 5 different occlusal conditions: mouth closed position without a mouthguard, with a full coverage mouthguard, with a right partial coverage mouthguard, with a left partial coverage mouthguard and with anterior partial mouthguard. The results revealed no significant difference in any of the measured physical factors between the occlusal conditions with and without a full-coverage mouthguard. On the other hand, a significant difference was observed in whole body reaction between the occlusal conditions with and without the partial coverage mouthguards. Therefore, isokinetic muscle tests on both knee joints and the Wingate anaerobic power test should be performed under the following five occlusal conditions: with or without full-coverage maxillary custom-made mouthguard, with a unilateral right or left partial-coverage maxillary mouthguard and with an anterior partial-coverage maxillary mouthguard. These results suggest that the partial coverage mouthguard had a short-term beneficial effect on agility rather than full coverage mouthguard.

USEFULNESS AND METABOLIC IMPLI-CATIONS OF A 60-SECOND REPEATED JUMPS TEST AS A PREDICTOR OF ACROBATIC JUMPING PERFORMANCE IN GYMNASTS

Gymnastics floor exercises are composed of a set of four to five successive acrobatic jumps usually called a “series”. The aims of the study were: 1) to relate the acrobatic gymnastics performance of these series with a repeated jumps test of similar duration (R60), 2) to study the relation between R60 and physiological parameters (heart rate and blood lactate), and the performance obtained in different kinds of jumps, 3) to confirm whether R60, executed without a damped jumping technique, can be considered an anaerobic lactic power test. Twenty male and twenty-four female gymnasts performed three repeated jumps tests for 5 s (R5), 10 s (R10) and 60 s (R60) and vertical jumps, such as drop jumps (DJ), squat jumps (SJ) and countermovement jumps (CMJ). We assessed heart rate (HR) and blood lactate during R10 and R60. The average values of the maximal blood lactate concentration (Lmax) after R10 (males = 2.5±0.6 mmol · l−1; females = 2.1±0.8 mmol · l−1) confirm that anaerobic glycolysis is not activated to a high level. In R60, the Lmax (males = 7.5±1.7 mmol · l−1 females = 5.9±2.1 mmol · l−1) that was recorded does not validate R60 as an anaerobic lactic power test. We confirmed the relation between the average power obtained in R60 (R60Wm) and the acrobatic performance on the floor. The inclusion in the multiple regression equation of the best power in DJ and the best flight-contact ratio (FC) in R5 confirms the influence of other non-metabolic components on the variability in R60 performance, at least in gymnasts.

Effect of music on anaerobic exercise performance.

For years, mostly the effects of music on cardiorespiratory exercise performance have been studied, but a few studies have examined the effect of music on anaerobic exercise. The purpose of this study was to assess the effect of listening to music and its rhythm on anaerobic exercise: on power output, heart rate and the concentration of blood lactate. 28 male subjects were required to visit the laboratory on 6 occasions, each separated by 48 hours. Firstly, each subject performed the Running-based Anaerobic Sprint Test (RAST) under 3 conditions on separate days: while listening to “slow rhythm music”, “fast rhythm music” or “no music”. 48 hours after the subjects completed RAST under 3 conditions, Wingate Anaerobic Power (WAN) tests were performed under 3 music conditions. The order of the 3 conditions (slow music, fast music and no music) was selected randomly to prevent an order effect. Results showed no significant differences between 3 conditions in anaerobic power assessments, heart rate or blood lactate (p > 0.05). On the basis of these results it can be said that music cannot improve anaerobic performance. The type of music had no impact on power outputs during RAST and WAN exercise. As a conclusion, listening to music and its rhythm cannot enhance anaerobic performance and cannot change the physiological response to supramaximal exercise.

Analysis of the characteristics of mouthguards that affect isokinetic muscular ability and anaerobic power

PURPOSEThe purpose of this study was to estimate the effects of occlusal stability to identify action mechanisms of mouthguards, known to have a modulatory effect on limb muscle function.MATERIALS AND METHODSThis study included 20 male subjects to perform the isokinetic muscle tests and the Wingate anaerobic power test on both knee joints under five closed-mouth conditions: without or with 4 types of mouthguards with thickness of 2 mm based on premolar area: (1) full-coverage, (2) anterior partial-coverage, (3) right posterior partial-coverage, and (4) left posterior partial-coverage. The obtained results were subjected to One-way ANOVA with repeated measures, followed by post hoc test of the contrast method (α=.05).RESULTSThere was no significant difference between the closed position with and without a full-coverage mouthguard in all variables. However, significant differences were observed between with and without a partial-coverage mouthguard in muscular endurance during extension of the left knee, muscular power and endurance during flexion of the right knee. Additionally, significant differences were found between occlusal states with full- and partial-coverage mouthguards in muscular power and endurance during extension of the left knee.CONCLUSIONThese findings indicate the elevation of vertical dimension by 2 mm or the inducement of occlusal stability had little effect on isokinetic muscle strength and anaerobic performance, while uneven distribution of occlusal force might have some positive effects.