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Although many studies have examined the physiological profile of soccer athletes, no comprehensive studies have been conducted on developmental soccer athletes in the United States. Therefore, the purpose of this study was to quantify physiological and sport-specific skill characteristics of Olympic Developmental soccer athletes by age group and region. Following written informed consent, 59 male athletes (age=14.6±2 yrs; wt=60.5±1.4 kg; ht=172.4±1.2 cm) completed a battery of tests to determine oxygen consumption (VO2max), heart rate (HRmax), ventilation (VEmax)1 respiratory exchange ratio (Rmax), anaerobic threshold (AT), and blood pressure (BPrestzmax) during a Bruce graded exercise test (GXT). Anaerobic power [peak power (PR), mean power (MP), total work output (TWO)] was achieved using a Wingate test. Leg power (vertical squat and countermovement jumps), percent body fat, and flexibilities (trunk, spine, hip, knee, and ankle) were assessed. Agility and sport-specific skill were determined using accepted sport-specific protocols (T-test, line drill test, juggling test, Johnson wall volley, and modified-Zelenka circuit). Factor analyses with subsequent MANOVAs indicated significant (£<05) main effects across age only. When compared to values reported for athletes of similar age and activity, these athletes were similar in aerobic power and anaerobic power/capacity, lower in leg power, and similar in agility and flexibility. Overall, this study has shown that although these athletes were similar in aerobic performance, improvements in anaerobic power, agility, and sport skill should be addressed. It is hoped that these results may serve as a point of reference for high school and club soccer coaches, as well as for further studies conducted with athletes of this age group and sport.

PHYSIOLOGICAL AND SPORT SKILL CHARACTERISTICS OF OLYMPIC DEVELOPMENTAL SOCCER ATHLETES 752