Effect on the Limit of Stability of the Lowered Center of Mass With a Weight Belt

• 발행기관: 한국전문물리치료학회
• 저자명: Jimmy Phan Kaylen Wakumoto Jeffrey Chen Woochol Joseph Choi
• 간행물 정보: 『한국전문물리치료학회지』한국전문물리치료학회지 제27권 제2호, 155~161쪽, 전체 7쪽
• 주제분류: 의약학 > 의학일반
• 파일형태: PDF
• 발행일자: 2020.05.30

영문 초록

Background: The consequences of falls are often debilitating, and prevention is important. In theory, the lower the center of mass (COM), the greater postural stability during standing, and a weight belt at the waist level may help to lower the COM and improve the standing balance. Objects: We examined how the limit of stability (LOS) was affected by the lowered center of mass with the weight belt. Methods: Twenty healthy individuals participated in the LOS test. After calculating each participant’s COM, a weight belt was fastened ten centimeters below the COM. Trials were acquired with five weight belt conditions: 0%, 2%, 4%, 6%, and 8% of body weight. Outcome measures included reaction time, movement velocity, endpoint excursion, maximum excursion, and directional control in 4 cardinal moving directions. Results: None of our outcome variables were associated with a weight belt (p > 0.075), but all of them were associated with moving direction (p < 0.01). On average, movement velocity of the COM and maximum excursion were 31% and 18% greater, respectively, in mediolateral than anteroposterior direction (5.4°/s vs. 4.1°/s; 97.5% vs. 82.6%). Conclusion: Our results suggest that postural stability was not affected by the weightinduced lowered COM, informing the development and improvement of balance training strategies.

목차

INTRODUCTION

MATERIALS AND METHODS

RESULTS

DISCUSSION

CONCLUSIONS

CONFLICTS OF INTEREST

AUTHOR CONTRIBUTIONS

REFERENCES

키워드

Balance Center of mass Limit of stability Weight belt