Comparison of anthropometric, physiologic and physical properties of Iran’s elite cross-country and alpine skiers
Journal Title: Journal of Biodiversity and Environmental Sciences (JBES) - Year 2013, Vol 3, Issue 9
Abstract
Sport performances and executions improve day by day, in ways that kinds of performances of elite athletes of previous decades, considered as regular and ordinary performances for nowadays athletes. Hence, new records are registered in sport fields every day. One of the most important factors in magnificent and remarkable progresses of athletes is well-timed and scientific knowledge of sport talents. Therefore, the present study was designed and executed with the purpose of comparison anthropometric, physiologic and physical properties of Iran’s elite cross-country and alpine skiers. Statistical society of the present study consisted whole Iran’s elite sprint and endurance skiers which were practicing in Iran national teams during 2010; including 12 elite sprint skiers with averages age of 25.42±3.95 years old, 80.22±7.67 kg weight and 178.57±3.23 cm height and 12 endurance ones with averages age of 26.71±6.15 years old, 69.08±5.61 kg weight and 179.57±3.86 cm height which selected purposefully. Anthropometric variables (like body fat percentage, muscular mass, BMI, height, weight, sitting height and length of hands), physiologic variables (as maximal oxygen consuming and lactate threshold) and physical variables (like speed, endurance, power, agility, flexibility and reaction duration) were gauged from the subjects. After classification, the outcome data were analyzed by using descriptive and perceptive statistical methods (T test). Weights and muscular masses of sprint skiers were significantly more (P=0.009 and P=0.004, respectively) and body fat percentages and Body Mass Index (BMI) were significantly less (P=0.034 and P=0.007, respectively) than endurance ones. Also, speed running records of sprint skiers were less, indeed better, than endurance ones (P=0.012) which means sprint skiers have rather agilities than endurance ones (P=0.019). In addition, maximal oxygen consumptions and lactate thresholds of endurance skiers were more than sprint ones (P=0.007 and P=.005, respectively). Sprint skiers are heavier than endurance ones, and because of gravity effect, this matter is an advantage for them, who compete in downhill. So, their speed and agility records are superior. Body fat percentages and Body Mass Index (BMI) of endurance skiers and muscular masses of sprint skiers are further than the others, which their probable reasons refer to feeding situations and kinds of sport metabolism. Also, maximal oxygen consumptions (VO2max) and lactate thresholds of sprint skiers were more than endurance ones, which concern different characteristics of the two branches. However, with regard to information shortage and some incongruous founds, further researches are required.
Authors and Affiliations
Mostafa Mirhashemi, Bahman Tarverdizadeh, Mohammad Ali Kohanpour, Mohammad Hassan Boostani, Mohammad Ali Boostani, Amir Akbari
Keywords
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