Effects of altitude training on long residential sub plateau swimmers hematological indexes
0
Citation
0
Reference
20
Related Paper
Abstract:
By studying more than six swimmers,reside the plateau for gradient during altitude training,the effects of altitude training on the physiological indexes. The result shows that:The plateau during altitude training by swimming athlete small variations in heart rate、body weight,Beneficial effects of hemoglobin based value compared with the plateau has significant difference,and the plateau effect last longer; Increase in CK concentration and there is no significant difference between the plateau based value; BUN,compared with the plateau based values have significant difference; Visible,the plateau swimmers during altitude training,in the same as the intensity and volume of altitude training cases each physiological index remained in a relatively ideal range.Keywords:
Altitude training
Topics:
Cite
Hypoxia
Oxygen transport
Altitude training
Low altitude
Cite
Citations (1)
For sea level based endurance athletes who compete at low and moderate altitudes, adequate time for acclimatization to altitude can mitigate performance declines. We asked whether it is better for the acclimatizing athlete to live at the specific altitude of competition or at a higher altitude, perhaps for an increased rate of physiological adaptation. After 4 wk of supervised sea level training and testing, 48 collegiate distance runners (32 men, 16 women) were randomly assigned to one of four living altitudes (1,780, 2,085, 2,454, or 2,800 m) where they resided for 4 wk. Daily training for all subjects was completed at a common altitude from 1,250 to 3,000 m. Subjects completed 3,000-m performance trials on the track at sea level, 28 and 6 days before departure, and at 1,780 m on days 5, 12, 19, and 26 of the altitude camp. Groups living at 2,454 and 2,800 m had a significantly larger slowing of performance vs. the 1,780-m group on day 5 at altitude. The 1,780-m group showed no significant change in performance across the 26 days at altitude, while the groups living at 2,085, 2,454, and 2,800 m showed improvements in performance from day 5 to day 19 at altitude but no further improvement at day 26 The data suggest that an endurance athlete competing acutely at 1,780 m should live at the altitude of the competition and not higher. Living ∼300-1,000 m higher than the competition altitude, acute altitude performance may be significantly worse and may require up to 19 days of acclimatization to minimize performance decrements.
Altitude training
Cite
Citations (27)
In order to investigate the mechanism of plateau pika(Ochotona curzoniae) adapted to different altitude. The plateau pika caught in altitude of 3960 m was as habitat control group by adaptation training within a week in the low altitude and put them in the simulation cabin in different altitude, compared the differences of the number of red cells( RBC), hematocrit( HCT) and hemoglobin concentration( HGB) in different simulated altitude group and habitat control group. The experimental results showed that with the rising of simulated altitude, the RBC and HGB of plateau pika increased obviously, increasing rate of HCT is slowing. While the mean corpuscular volume(MCV), mean corpuscular hemoglobin(MCH) and mean corpuscular hemoglobin concentration(MCHC) decreased. The HCT of plateau pika did not increase significantly with the altitude increasing, which helps to reduce the circulation resistance of blood and reduce the burden on the heart. The adaptability of plateau pika is contribute to living in hypoxic environment for a long time.
Pika
Mean corpuscular hemoglobin
Cite
Citations (1)
The underlying mechanisms of altitude training are still a matter of controversial discussion. The aim of this study was to compare the hemoglobin concentration, red blood cell count and volume between normal and high altitude situations and their persistence after returning back from higher altitudes. The study population included male students of Ardal Branch, Islamic Azad University. Twelve apparently healthy individual with high level of physical activity, mean age of 22.6 ± 1.50 years were selected through purposive and available sampling method. In this study, blood samples were collected at different time and altitudes in order to compare the changes of Red Blood Cell (RBC), Mean Cell Hemoglobin (MCH), Mean Corpuscular Hemoglobin Concentration (MCHC) and Mean Cell Volume (MCV). The first blood sampling was conducted at the altitude of 1830 m. The subsequent blood samplings were conducted 48 and 72 h after reaching the altitude of 4000 m and 24, 48 and 72 h after returning back to the altitude of 1830 m. The statistical method used in this study was repeated measurement ANOVA. Red Blood Cell (RBC) changes between onset of climbing to 1830 m and 24, 48 and 2 h after sojourn at 1830 m height (after returning from 4000 m altitude) was significant. Mean Cell Hemoglobin (MCH) showed no significant change in any of the altitudes. MCHC changes between onset of moving toward altitude 1830 meters and 24, 48 and 72 h after sojourn at 1830 m height (after returning from 4000 m altitude) was also significant in addition, MCHC showed a significant difference between 24 h staying at 1830 m altitude with 48 and 72 h staying at 4000 m altitude. Mean Cell Volume (MCV) showed no significant difference between 48 and 72 h staying at 4000 m altitude and also between 24, 48 and 72 h staying at 1830 m altitude; however, there was a significant difference between onset of moving toward 1830 m altitude with 24, 48 and 72 h staying at 1830 m altitude and also 48 and 72 h staying at 4000 m altitude. The results showed that being in altitude has significant effect on RBC and MCHC.
Blood sampling
Altitude training
Mean corpuscular hemoglobin
Cite
Citations (1)
Haematologic studies were carried out in 20 high altitude natives during two months stay at plains (200 m) and on their return to an altitude of 3,500 m. Haemoglobin, erythrocyte count, haematocrit and reticulocyte count decreased rapidly on arrival to plains and attained minimum level by the end of fourth week. All these parameters increased rapidly on return to high altitude and were found to attain maximum values by 23rd day on return to high altitude. Mean cell volume and mean cell haemoglobin showed significant increase at altitude. Blood volume and red cell mass increased significantly at altitude. It is concluded that the high altitude natives of Ladakh were well adapted to hypoxic environment due to normocythaemic hypervolemia.
Cite
Citations (0)
The extracellular space was studied in young adult males before and during acute exposure to an altitude of 4,300 meters, and also in a group of high altitude permanent residents. The results obtained indicate that during acute exposure to high altitude the sulfate space decreases 1.4 ± 0.2 liters (P<0.01) and that there is no difference between sea level and high altitude natives.
Acute exposure
Cite
Citations (8)
During altitude training several physiological and biochemical indexes were applied to monitor the training loads.It was found that the hemoglobin values of the athletes during altitude training increased more remarkably,compared with those in training at the plain (P0.05).The individual hemoglobin values of the athletes in creased averagely 1.1g/dl.The range of the increase was 0.6～1.9g/dl.The changes of hemoglobin and blood urea related to the arrangement of the training loads.The lean body mass of the female athletes decreased during altitude training.It was suggested that before going to the altitude the arrangement of training loads should serve the preparation of altitude training so as to shorten the duration for the accommodation at the altitude.Meanwhile,weight-training should also be stressed.
Altitude training
Cite
Citations (0)
Objective To analyze the physiological change characteristics and morbidity situation of medical staff during medical support mission on the Tibetan Plateau. Methods The blood pressure, heart rate, oxygen saturation and morbidity situation of medical staff in different altitude, ways to enter and station, acclimatization stage were statistically analyzed. Results( 1) The blood pressure of medical staff showed an upward trend with the rise of altitude, there was no significant change of diastolic blood pressure within the altitude of 2000 m, and a significant rise in diastolic blood pressure above the altitude of 3000 m. Systolic blood pressure differed significantly among the plain, altitude of 1000-1000 m, 3000-3670 m and 4400 m( P﹤0.05). The heart rate increased with altitude rising gradually, the differences among those at altitudes of below 2000 m, and of 3000 m, 3670 m and 4400 m were significantly( P﹤0.05). Oxygen saturation of medical staff reduced gradually with altitude increasing, the differences among those at altitudes of below 1000 m, and of 2000 m, 3000 m, 3670 m and 4400 m were significantly different( P﹤0.05).( 2) Changes of blood pressure and heart rate of medical staff between the two ways: railway transportation and motorized mobility were compared, the differences were statistically significant( P﹤0.05), and there was no statistically significant difference in change of oxygen saturation between the two ways; the incidence of acute altitude sickness between the two ways were compared, the difference was statistically significant( P﹤0.05).( 3) Within two weeks after medical staff entering and station on Tibetan Plateau, acute altitude sickness( 71.97%) and upper respiratory tract infection( 28.79%) were the main diseases, two weeksafter the entering and station, acute altitude sickness reduced significantly( 1.51%), upper respiratory tract infection decreased(6.28%). Conclusions During the implementation of medical support mission on plateau, physiological change characteristics and morbidity situation of medical staff were closely related to the altitudes, ways to enter and station, and encamping training time.
Oxygen Saturation
Cite
Citations (0)
To explore the blood oxygen saturation and heart rate changes of the Antarctic explorers.During August 2010 to April 2011, the changes in blood oxygen saturation, heart rate and plateau reaction of 16 Antarctic expedition team in different plateau environments (Tibetan plateau versus Antarctic plateau) were monitored with the noninvasive pulse oximeter MD300-C. The extent of acute mountain sickness was determined according to the Lake Louise Consensus acute mountain reaction symptom scores and judgment method.The changes of blood oxygen saturation, heart rate at different altitudes of 110, 3650, 4300 m (96.8% ± 1.2%,89.1% ± 1.2%, 86.1% ± 2.0%, (75.0 ± 5.4) times/min, (104.0 ± 4.3) times/min, (113.0 ± 5.2) times/min,F = 214.155, 240.088,both P < 0.05). With rising latitude and elevation gradient in Antarctic plateau, the changes of blood oxygen saturation, heart rate at different altitudes of 2000, 2500, 3000, 3500 and 4087 m(91.9% ± 1.3%,90.5% ± 1.3%,87.6% ± 1.4%,85.0% ± 1.8%,81.5% ± 2.2%, (85.9 ± 3.2) times/min, (90.6 ± 2.8) times/min, (97.8 ± 4.1) times/min, (102.0 ± 3.4) times/min, (106.3 ± 3.9) times/min, F = 105.418, 90.174, both P < 0.05). Levels of blood oxygen saturation and heart rate were both correlated with the risk of altitude sickness (r = -0.446 and 0.565, both P < 0.05).As the increases of altitude, there are significant changes in oxygen saturation, heart rate of the Antarctic explorers. And with the increases of altitude, the risk of altitude sickness gradually increases.
Oxygen Saturation
Saturation (graph theory)
Cite
Citations (1)
Key Points 1. As altitude increases, the barometric pressure and the oxygen partial pressure decrease. This means that any athletic performance critically dependent on oxygen for metabolism, i.e., any event lasting longer than roughly two minutes, might be adversely affected. By contrast, because the air at high altitude is less dense than at sea level, jumping, sprinting, and other activities in which air resistance needs to be overcome might be enhanced when competing at high altitude. 2. The most important physiological adaptations to living at high altitude are increased ventilation of the lungs, increased blood hemoglobin, and enhanced extraction of oxygen by the tissues. Maximal cardiac output is not usually affected by altitude. 3. Although acclimatization to or residence at high altitude is required for optimal endurance performance at high altitude, the value of high altitude training for endurance performance at sea level has yet to be proven. 4. Nutrition for athletes at altitude can be a major problem, and weight loss will be significant at moderate to high altitudes. The amount of weight loss is generally dependent on the absolute altitude.
Altitude training
Cite
Citations (4)