Assessment Of Hematological Selected Physiological And Anthropometrical Parameters Of Endurance Runners At Guna Athletics Sport Club And Ethiopian Youth Sport Academy Training Camps Ethiopia.

Introduction: Running performance is dependent upon physiological, anthropometrical, diet,rngenetic, hematological and training characteristics. Increased oxygen transport and efficiency ofrntissue in extracting oxygen are the major determinants to competitions that require endurance.rnThus altitude training is often employed to increase blood oxygen-carrying capacity in order tornimprove sea-level endurance performance. Ethiopian and Kenyan athletes who reside and trainrnat moderately hypoxic altitude in the rift valley dominates such events for years. Objective ofrnthe study: To assess and compare hematological, selected physiologic, anthropometric andrntraining load characteristics of runners training at Guna Athletics Sport Club and EthiopianrnYouth Sport Academy. Methodology: Institutional based comparative cross-sectional studyrndesign was conducted at Guna Athletics Sport Club and Ethiopian Youth Sport Academy.rnEndurance runners fulfilling the eligibility criteria were recruited from May - October / 2019. Arnsample size of 102 (26 runners and 25 controls at Guna and 26 runners and 25 controls at AddisrnAbaba) were used. Three ml of blood was drawn in the early morning before breakfast from thernantecubital vein. Training diary was assessed using standardized questionnaires.rnAnthropometric measurements were taken according to standard procedures. Heart rate andrnoxygen saturation were measured using pulse-oximetry. Result: There were no significantrndifferences in IAAF scores between Guna and Addis Ababa runners of both sexes (Guna vs AddisrnAbaba runner, male: 947 ± 85.6 vs 940 ± 85.40 points; female: 1011.3 ± 85 vs 973.9 ± 118rnpoints respectively). Male runners in Guna (MAG) had significantly higher Hgb, MCH andrnMCHC than male runners in Addis Ababa (MAA). Additionally, female runners in Guna (FAG)rnhad significantly higher MCH and MCHC than runners in Addis Ababa (FAA). However, therernwere no significant differences between Guna and Addis Ababa runners in RBC count, Hct andrnMCV for both sexes and Hgb for females. Training frequency and training load of Guna runnersrnwere significantly lower than Addis Ababa runners for both sexes. Runners in Guna hadrnsignificantly lower resting SaOrn and peak heart rate immediately after maximal exertion thanrnAddis Ababa runners for both sexes. MAG and FAG have developed severe (SaOrn2rn=86.8 ± 4.4%)rnand moderate (SaOrn=89.4 ± 5.7%) exercise-induced hypoxemia respectively immediately afterrnmaximal exertion. Hence, the relatively higher hypoxic condition in Guna has impacted on thernmaximal performance of athletes. Guna runners had significantly shorter-thigh length thanrnAddis Ababa runners for both sexes. In addition, FAG had significantly small chestrncircumference than FAA. However, other anthropometric variables like height, weight, BMI;rntotal leg, lower leg, upper arm length; thigh, calf, ankle and upper arm circumferences werernsimilar between athletes in Guna and athletes in Addis Ababa. Conclusion: There werernsignificant differences in hematological, anthropometric, training load and some selectedrnphysiological variables between Guna and Addis Ababa runners for both sexes. The IAAF scoresrnwere similar between Guna and Addis Ababa runners for both sexes. Despite the higher Hgb,rnMCH and MCHC, severe exercise-induced hypoxemia develops in MAG that compromiserntraining load and intensity. Endurance runners need to train at a moderate attitude (~2400m)rnabove sea level but not higher than 3000m. rn2rn2

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