Effect of Slow Walking Speed on Gait.

, Kim, Deog Young; , Park, Chang il; , Choi, Yong Seok; , Moon, Ja Young; , Lim, Jong Yub; , Kim, Dug Young; , Lee, Don Shin

Original Article

Journal of the Korean Academy of Rehabilitation Medicine 2007;31(3):317-323.

Kim, Deog Young , Park, Chang il , Choi, Yong Seok , Moon, Ja Young , Lim, Jong Yub , Kim, Dug Young , Lee, Don Shin

Department and Research Institute of Rehabilitation Medicine, Yonsei University College of Medicine, Korea. dugykim@ilsanpaik.ac.kr

느린 보행 속도에 의한 보행 변화

김덕용, 박창일, 최용석, 문자영, 임종엽, 김덕영, 이돈신

연세대학교 의과대학 재활의학교실 및 재활의학연구소

Abstract

Objective
To investigate the effect of slow walking speed on the gait.
Method
Twenty healthy young male subjects were recruited. The temporospatial data, kinematic and kinetic data in sagittal plane at two different walking speed (2 km/hr, 4 km/hr) were obtained through three dimensional analyzer with the force plate, and compared these parameters at slow gait speed to those at normal gait speed.
Results
The cadence and step length decreased significantly and double support time increased significantly (p<0.05) at slow speed compared to at normal speed. The most peak angle of hip, knee and ankle joint decreased, maximal ankle dorsiflexion angle in stance phase increased significantly at slow speed compared to at normal speed (p＜0.05). The most maximal extension and flexion moment and power in sagittal plane decreased compared to at normal speed (p＜ 0.05).
Conclusion
The results of this study demonstrate that only slow walking speed without any pathology may change the temporospatial, kinematic and kinetic parameters of gait, and these results may be useful to interpret the data of gait analysis in the disabled persons with slow walking speed. (J Korean Acad Rehab Med 2007; 31: 317-323)

Key Words: Walking speed, Kinematic data, Kinetic data