Comparing Ankle Range of Motion, Functional Ability, Talar Tilt Angle and Foot Injuries between High School Ballet Majors with and without Foot Deformities

BACKGROUND: The purpose of the study was to compare and contrast ankle range of motion, functional ability, talar- tilt angle and foot injuries between high school ballet majors with and without foot deformities and to provide fundamental data about effective intervention methods for their successful performance and injury prevention. METHODS: Subjects were 18 female high school ballet dancers, eight with foot deformities and ten without foot deformities. For statistical analysis, the independent t-test (SPSS 20.0; SPSS Inc, Chicago, IL, USA) was used and the significant level of P<0.050 was selected. RESULTS: 1. Foot injuries of plantar flexion and talar tilt were significantly different between the two groups (P<0.050). 2. The deformity group displayed a higher proportion of mechanical instability compared to that of the control group. CONCLUSIONS: Foot deformities in high school students majoring in ballet can have negative effects to the ankle joint, with a strong possibility of ankle instability and foot injuries linked to tarlar tilt, and quite probably, of chronic ankle sprain.

Comparing Ankle Range of Motion, Functional Ability, Talar Tilt Angle and Foot Injuries between High School Ballet Majors with and without Foot Deformities

BACKGROUND: The purpose of the study was to compare and contrast ankle range of motion, functional ability, talar- tilt angle and foot injuries between high school ballet majors with and without foot deformities and to provide fundamental data about effective intervention methods for their successful performance and injury prevention. METHODS: Subjects were 18 female high school ballet dancers, eight with foot deformities and ten without foot deformities. For statistical analysis, the independent t-test (SPSS 20.0; SPSS Inc, Chicago, IL, USA) was used and the significant level of P<0.050 was selected. RESULTS: 1. Foot injuries of plantar flexion and talar tilt were significantly different between the two groups (P<0.050). 2. The deformity group displayed a higher proportion of mechanical instability compared to that of the control group. CONCLUSIONS: Foot deformities in high school students majoring in ballet can have negative effects to the ankle joint, with a strong possibility of ankle instability and foot injuries linked to tarlar tilt, and quite probably, of chronic ankle sprain.

Comparing Ankle Range of Motion, Functional Ability, Talar Tilt Angle and Foot Injuries between High School Ballet Majors with and without Foot Deformities

BACKGROUND: The purpose of the study was to compare and contrast ankle range of motion, functional ability, talar- tilt angle and foot injuries between high school ballet majors with and without foot deformities and to provide fundamental data about effective intervention methods for their successful performance and injury prevention. METHODS: Subjects were 18 female high school ballet dancers, eight with foot deformities and ten without foot deformities. For statistical analysis, the independent t-test (SPSS 20.0; SPSS Inc, Chicago, IL, USA) was used and the significant level of P<0.050 was selected. RESULTS: 1. Foot injuries of plantar flexion and talar tilt were significantly different between the two groups (P<0.050). 2. The deformity group displayed a higher proportion of mechanical instability compared to that of the control group. CONCLUSIONS: Foot deformities in high school students majoring in ballet can have negative effects to the ankle joint, with a strong possibility of ankle instability and foot injuries linked to tarlar tilt, and quite probably, of chronic ankle sprain.

Swim training improves leptin receptor deficiency-induced obesity and lipid disorder by activating uncoupling proteins

Leptin receptor deficiency causes morbid obesity and hyperlipidemia in mice. Since physical exercise enhances energy expenditure, it is an important part of successful weight-control regimens. We investigated the mechanism by which swim training regulates leptin receptor deficiency-induced obesity and lipid disorder in a mouse model of obesity (obese db/db mouse). Swim training for 6 weeks significantly decreased body weight gain and adipose tissue mass in both sexes of obese and lean mice, compared to their respective sedentary controls. These effects were particularly evident in obese mice. Swim training also caused significant decreases in serum levels of triglycerides, free fatty acids and total cholesterol in both obese and lean mice. In obese mice, swim training increased the levels of mRNAs and proteins encoding uncoupling protein 1 (UCP1), UCP2 and UCP3 in brown adipose tissue, white adipose tissue and skeletal muscle, respectively. In conclusion, these findings suggest that, in mice, swim training can effectively prevent body weight gain, adiposity and lipid disorders caused by leptin receptor deficiency, in part through activation of UCPs in adipose tissue and skeletal muscle, which may contribute to alleviating metabolic syndromes, such as obesity, hyperlipidemia and type 2 diabetes.

The Effects of Exercise Type on Bone density, Body Fat and Blood Components of the Middle Aged Women / 체질인류학회지

No abstract available.

The Effects of Regular Exercise on Bone Density, Muscle Strength and % Body Fat in Elderly Women / 체질인류학회지

The purpose of this study was to investigate the effects of regular swimming, walking and aerobic exercise on bone density, muscle strength and % body fat in elderly women (above average 65-year-old). Thus, the study suggested that there is basic data for osteoporosis prevension, physical fitness development and health management. This research provided as follows ; 1. The bone density increases of lumbar and femur (femoral neck, ward's triangle, trochanter) site were found as ordinal of aerobic group, walking group, swimming group and control group. 2. The measuring site of muscle strength increases and % body fat decreases were found as ordinal of aerobic group, walking group, swimming group and control group. 3. The bone density of lumbar and femur get significant correlation coefficient with back strength, leg extension and % body fat in the control group. 4. The bone density of lumbar and femur were significant correlation coefficient with back strength and leg extension in the swimming group. Furthermore we can find significant correlation coefficient between bone density of lumbar and % body fat. 5. There are significant correlation coefficient between bone density of lumbar and back strength, leg flexion, leg extension in the walking group. Foremore we can find significant correlation coefficient between bone density of femur and back strength, leg extension and % body fat. 6. There are significant correlation coefficient between bone density of lumbar and grip strength, back strength, leg flexion, leg extension. Furthermore we can find significant correlation coefficient between bone density of femur and grip strength, back strength, leg flexion, leg extension and arm extension. But % body fat would be correlated with bone density of lumbar only. 7. The bone density of the sum of four group in the lumbar and femur was correlated with muscles strength and % body fat. Although swimming exercise of elderly women wouldn't effect the increase of bone density, it influence to muscle strength and leg strength increase. However, walking and aerobic exercise were considered as optimal exercise type for bone density and muscle strength increases. It would be suggested that the study supplies some information for increasing physical fitness and bone density if lifestyle and amount of calcium ingestion so on can be controlled and the exercise prescription of individual according to physical fitness level has been given.