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Trunk and Lower Limber Muscle Strength Characteristics of National Elite Females Freestyle Skiing Aerials Athletes and Discuss with the Relations of Balance Ability

Author: WangYanLing
Tutor: ZuoHongGuang
School: Shenyang Institute of Physical
Course: Human Movement Science
Keywords: Freestyle Skiing Aerials Elite athlete Trunk strength Lower extremity strength Balance
CLC: G804.2
Type: Master's thesis
Year: 2010
Downloads: 150
Quote: 1
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Abstract


Six National Women's Freestyle Skiing Aerials athletes as the object of study, different speeds of isokinetic testing applications produced in Germany ISOMED2000 isokinetic testing athletes torso, hip, knee, and test out the maximum joint torque, maximum joint torque angle, the maximum torque of the unit of body weight, maximum flexion and extension torque ratio, total power, total power, average power, range of motion and other indicators, analysis of athletes torso, lower extremity muscle strength levels and characteristics. Body balance test application Finland METITUR balance testing system to test the distance and move around in the body center of gravity, distance moves back and forth, moving up and down distance, speed moment indicators, a preliminary evaluation of the athlete's ability to balance. SPSS16.0 statistical software for athletes test data statistics, and all the experimental data for paired samples T-test and multivariate analysis to investigate the athletes torso, lower limb muscle strength and body balance the relationship that exists. The results show that: 1 freestyle skiing aerials women's the athletes muscle strength characteristics: trunk extensor force is the the flexor force about 1.7 times. The right side of the hip flexion and extension muscle strength were better on the left side, the the athletes right leg advantage legs, allocate more muscle strength in the course of the campaign, to the right leg. The right side of the knee extensor strength better than the left extensor strength; the left flexor strength in the right flexor strength. This may be due to the training using the right and left side is not synchronized with the results of the muscle force training. Freestyle skiing aerials women athletes trunk muscle strength and body balance: the athletes body's balance and trunk unit weight flexor force, the maximum torsional strength of the right side of the unit weight there is a significant correlation. Freestyle Skiing Aerials female athletes lower extremity muscle strength and body balance relationship: about body balance and hip the side stretch unit of body weight, maximum strength there is a significant correlation with the right side of the knee flexion and extension unit of body weight force exists significant correlation. According to the findings suggest that: 1 athlete in peacetime training, pay attention to the reasonable control of the weight and balance training muscle strength. In the case of an appropriate increase in velocity, strengthen the trunk, lower extremity muscle strength training. 2 advises athletes proper control of the hip joint range of motion, improve hip flexion and extension muscle strength on the left side. Moderate to strengthen the right side of the knee flexor strength and left extensor strength training. 3 recommend an appropriate increase in the trunk flexor strength, maximum torsional strength of the right muscles to increase the body's balance. 4 an appropriate increase in the left and right side of the unit hip extensor strength, knee right in maximum flexion and extension muscle strength, increase female athletes body balance.

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