Fast and slow dynamics of static balance of obese men under reduced gravity force conditions
Poster Presentation
Paper ID : 1293-SSRC
Authors
1دانشجوی دوره دکتری رفتار حرکتی دانشگاه فردوسی مشهد
2استاد دانشکده علوم ورزشی دانشگاه فردوسی مشهد
Abstract
Background:
Obesity in many researches is known as a detrimental factor on balance and motor performance. Lose weight can improve balance under different conditions. In past studies obese subjects lose weight by nutrition and exercise over time, and these changes are associated with the adaptation of the motor system.
Object:
The aim is to investigate the slow (long-term) and fast dynamic (short-term) effects of obesity on static balance using a gravity reduction device (simulated lose weight conditions) and compared to a normal weight group.
Methodology:
The tri-axial accelerometer-gyroscope device, which was placed on the waist of the subjects, was used to measure static balance. The balance scores of the obese group with the gravity reduction device and the normal weight group with the gravity increasing device were compared at three different base of support (shoulder width, Chaplin, tandem) and with eyes closed and open.
Results:
The independent t-test showed that the balance score of the obese group in the state of reduced gravity force compared to the normal weight group is not significant, except for tandem standing. Also, the dependent t-test showed that the obese group had a significant decrease in balance by reducing the base of support and with eyes closed. The normal weight group showed a significant decrease in balance by increasing the gravity force both with eyes open and closed and at all bases of support.
Conclusion:
The results of this study show that obesity, unexpectedly, does not have long-term negative effects on men's static balance, and these effects disappear quickly with lose weight. At normal base of support and lack of access to visual information, the lose static balance of obese people is greater than that of normal weight people. Also, with weight gain, normal weight people have more short-term and long-term balance loss than the obese group.
Obesity in many researches is known as a detrimental factor on balance and motor performance. Lose weight can improve balance under different conditions. In past studies obese subjects lose weight by nutrition and exercise over time, and these changes are associated with the adaptation of the motor system.
Object:
The aim is to investigate the slow (long-term) and fast dynamic (short-term) effects of obesity on static balance using a gravity reduction device (simulated lose weight conditions) and compared to a normal weight group.
Methodology:
The tri-axial accelerometer-gyroscope device, which was placed on the waist of the subjects, was used to measure static balance. The balance scores of the obese group with the gravity reduction device and the normal weight group with the gravity increasing device were compared at three different base of support (shoulder width, Chaplin, tandem) and with eyes closed and open.
Results:
The independent t-test showed that the balance score of the obese group in the state of reduced gravity force compared to the normal weight group is not significant, except for tandem standing. Also, the dependent t-test showed that the obese group had a significant decrease in balance by reducing the base of support and with eyes closed. The normal weight group showed a significant decrease in balance by increasing the gravity force both with eyes open and closed and at all bases of support.
Conclusion:
The results of this study show that obesity, unexpectedly, does not have long-term negative effects on men's static balance, and these effects disappear quickly with lose weight. At normal base of support and lack of access to visual information, the lose static balance of obese people is greater than that of normal weight people. Also, with weight gain, normal weight people have more short-term and long-term balance loss than the obese group.
Keywords