NON-INVASIVE MEASURES OF AEROBIC AND ANAEROBIC THRESHOLDS
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This study analysed the changes of power output, blood lactate concentration, and plasma enzyme activity, and the relationship of these parameters. 1. Peak power output and mean power output of 10sec anaerobic exercise showed the highest values among a various anaerobic exercise, and fatigue index of l0sec anaerobic exercise showed the lowest value. 2. In peak value of blood lactate, values of 60sec and 90sec anaerobic exercise were significantly higher than the other types of anaerobic exercise. Peak values of blood lactate after l0sec and 30sec anaerobic exercise were a significantly higner than the rest value, but it cannot showed the sufficient activation, of lactate metabolism. 3. Activity of plasma creatine phosphokinase showed a significant increase after anaerobic exercise, and the increase of l0sec and 30sec anaerobic exercise were higher than the other anaerobic exercise. Activities of plasma lactate dehydrogenase showed a significant increase after anaerobic exercise, but the increase of 60sec and 90sec anaerobic exercise were higher than the other anaerobic exercise. 4. In 60sec and 90sec anaerobic exercise, peak value of blood lactate concentration showed a significant correlation to the fatigue index and peak value of plasma LDH activity.
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The use of anaerobic threshold in assessment of aerobic capacity was evaluated in 34 normal subjects and 47 patients with various kinds of chronic heart disease. Anaerobic threshold was determined as the oxygen consumption (VO2) at which a linear relationship between pulmonary ventilation (VE) and VO2 was lost during progressive treadmill exercise. Anaerobic threshold determined in this manner was validated with that determined by blood lactate measurements in eight normal subjects and nine cardiac patients (r = .962, p less than .001). Thereafter, anaerobic threshold was determined only by respiratory measurements. In symptom-limited, maximal exercise, anaerobic threshold was reached well before maximal effort and corresponded to 70% of maximal VO2 both in normal subjects and cardiac patients. Anaerobic threshold decreased as age progressed in normal subjects (r = - .70, p less than .001). Anaerobic threshold in cardiac patients was lower than that in the normal subjects and decreased progressively as Ne...
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A mixed cross-sectional longitudinal design was used to study the effect of growth and physical maturation on peak aerobic and anaerobic mechanical power. Subjects were divided into three groups based on Tanner staging: 16 prepubertal (PP, Stage 1), 15 midpubertal (MP, Stages 2, 3, 4), and 5 late pubertal (LP, Stage 5). Aerobic and anaerobic power were observed every 6 months for IS months. Peak mechanical aerobic power and peak oxygen consumption were determined using a progressive cycle ergometer test. Anaerobic power indices were derived from the Wingate Anaerobic Test. There was no difference in peak mechanical aerobic power (in W · kg −1 ) among the maturation groups, nor with chronological age. There was a significant difference in peak and mean anaerobic power (in W · kg −1 ) among maturation groups, but the increase with chronological age was not statistically significant. There was a significant correlation between aerobic and anaerobic power (in Watt) during each session among the PP and MP boys but not among the LP boys. This may suggest that the child’s metabolic specialization into either an aerobic or anaerobic performer begins in late puberty.
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Incremental exercise
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Practising the martial art of taekwon-do (TKD) has been proposed to have beneficial effects on cardiovascular fitness as well as general physical ability. Furthermore, TKD masters and participants have promoted TKD as a total fitness programme. Research studies substantiating this, however, seem to be lacking, perhaps because TKD is recognised more as a method of self defence than a fitness programme.Nineteen TKD practitioners with an average age of 13.8 years and 10.4 months of TKD training experience were recruited to participate. Measurements included resting heart rate, aerobic power, anaerobic power, and anaerobic capacity.Paired t test analysis showed no significant differences in either resting heart rate or aerobic power after training. However, significant differences were observed in anaerobic power and anaerobic capacity (p = 0.05). The increases in anaerobic power and anaerobic capacity were 28% and 61.5% respectively.The practice of TKD promotes anaerobic power and anaerobic capacity, but not aerobic power, in male adolescents.
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The purpose of this study was to compare the impact of maximum aerobic and anaerobic activity of a meeting on the level of LDL-C, HDL-C reactive protein and C (CRP). Therefore, 26 students of Tabriz University randomly two groups of 13 persons were aerobic and anaerobic. Methods to form aerobic group was subjects during a test session under the standard Bruce (aerobic group) and Group subjects under anaerobic Wingate test standard (group anaerobic ) groups. Blood samples before and immediately after running test was performed to analyze and compare statistical data from the independent t was used. Results showed a significant difference in HDL-C levels between groups are aerobic and anaerobic Web increase in aerobic than anaerobic group was however a significant difference between aerobic and anaerobic groups in the amount of LDL- C was observed but the decrease LDL-C in aerobic compared to anaerobic More was also compared between two groups of aerobic and anaerobic significant difference in the amount of CRP was observed, the results show aspects of the effect of activity maximum aerobic on the rate of increase in CRP Note more will attract.
Aerobic Exercise
Wingate test
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Soccer requires excellent physical fitness, including cardiorespiratoty endurance known as maximum oxygen volume (VO2max). Some exercise to improve soccer players VO2max are aerobic exercise and anaerobic exercise. Aim of this study was to prove the efficiency of aerobic and anaerobic exercise to increase VO2max. Subjects in this study were 22 soccer players aged 20 years. Subjects participated in a 16-meeting training program with group exercises, aerobic exercise and anaerobic exercise. Aerobic exercise used jogging variations and anaerobic exercise used sprint variations. Research instruments used Mutistage Fitness Test (MFT) to determine VO2max capacity. The significance value of aerobic and anaerobic exercise on VO2max enhancement is 0.00 (p 0.05). The conclusion of this study is that aerobic exercise and anaerobic exercise can increase VO2max soccer players, whereas no significant difference between aerobic and anaerobic exercise in VO2max enhancement.
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Aerobic capacity
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Aerobic exercise draws energy mainly from biochemical processes requiring oxygen, whereas anaerobic exercise draws energy from processes not requiring oxygen.20 healthy male athletes aged (18-24 yrs.) were recuited for this study. Healthy low active males and BMI matched participants (n=10) aged (20-22 yrs.) wererecuited as controls. Aerobic and anaerobic testing was performed on a cycle ergometer. The testing wasa modification of AstrandRhyming protocol forVo2max. Pulserate estimation,Rbcs,Wbcs, HB and hematocrit were estimated using coulter counter. Lactateby accusport, CD34+ stem cells were determined by flow cytometry. Results indicated:VO2 max was increased in case of aerobic exercise bout compared to anaerobic one.Lactate concentration was decreased in case of aerobic exercise bout compared to anaerobicone.Hb, Rbcs,Wbcs and hematocrit were increased after both exercise bouts.CD34+ stem cells were increased in case of anaerobic exercise bout than aerobic one. It is concluded that Vo2 max increased in case of aerobic exercise bout compared to anaerobic one due to the longer period of cycling. Lactate concentration was decreased in case of aerobic exercise bout compared to anaerobic one due to the higher intensity expressed in anaerobic bout leading to decrease oxygen .CD 34+ HPC counts were increased in peripheral blood of anaerobic exercise bout than aerobic one due to stress induced by anaerobic exercise bout .
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Cycle ergometer
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