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The Dynamics of Balance Control During Slipping

Published online by Cambridge University Press:  05 May 2011

You-Li Chou ,
Jia-Yuan You ,
Chii-Jeng Lin ,
Fong-Chin Su  and
Pei-Hsi Chou
You-Li Chou*
Affiliation:
Institute of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C.
Jia-Yuan You*
Affiliation:
Institute of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C.
Chii-Jeng Lin*
Affiliation:
Institute of Orthopedic Surgery in Medical Center, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C.
Fong-Chin Su*
Affiliation:
Institute of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan 70101, R.O.C.
Pei-Hsi Chou*
Affiliation:
Department of Orthopedic Surgery, Kaohsiung Medical University, Kaohsiung, Taiwan 80708, R.O.C.
*
* Professor
** Ph.D. Candidate
* Professor
* Professor
*** Attending Physician
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Abstract

This study investigates experimentally the velocity of the center of mass with respect to the base of support while subjects step on slippery flooring. The moments of the joints of both legs are also investigated to gain further insights into the source of any correlation found in reacting to slippery perturbation. Twenty-two healthy subjects dressed with safety harness walked first without and then with slippery perturbation, guided by a metronome at 120 steps/min and 90 steps/min cadence. Data were collected from a motion analysis system and force plates. Subjects falling had distinguishably slower velocity of center of mass with respect to the lead stance foot compared to the subjects maintaining balance at contralateral toe off. Larger knee flexion moment and ankle plantar flexion moment in the perturbed leg were found among subjects regaining balance. Faster velocity of center of mass with respect to base of support is noteworthy in subjects regaining balance from slippery perturbation. The response of lower extremities, especially about the thigh and leg in the lead stance limb, were important to improve the velocity of the center of mass with respect to base of support.

Keywords

SlipKineticsBalanceGait
Type
Articles
Information
Journal of Mechanics , Volume 17 , Issue 2 , June 2001 , pp. 69 - 78
Copyright
Copyright © The Society of Theoretical and Applied Mechanics, R.O.C. 2001

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References

REFERENCES

1Council of Labor Affairs, Executive Yuan, R.O.C., Monthly Bulletin of Labor Statistics, Taiwan Area, Rebulic of China, December 1999, Council of Labor Affairs, Executive Yuan, R.O.C., pp. 160–161 (1999).Google Scholar
2Manning, D. P., Ayers, I., Jones, C., Bruce, M. and Cohen, K., “The Incidence of Underfoot Accidents During 1985 in a Working Population of 10,000 Merseyside People,” J. Occup. Accid., 10, pp. 121–130 (1988).CrossRefGoogle Scholar
3Bentley, T. A. and Haslam, R. A., “Slip, Trip and Fall Accidents Occuring During the Delivery of Mail,” Ergonomics, 41, pp. 1859–1872 (1998).CrossRefGoogle ScholarPubMed
4Bjornstig, U., Bjornstig, J. and Dahlgren, A., “Slipping on Ice and Snow — Elderly Women and Young Men are Typical Victims,” Accid. Anal. Prev., 29, pp. 211–215 (1997).CrossRefGoogle Scholar
5Gabell, A., Simons, M. A. and Nayak, U. S., “Falls in the Healthy Elderly: Predisposing Causes,” Ergonomics, 28, pp. 965–975 (1985).CrossRefGoogle ScholarPubMed
6Strandberg, L., “On Accident Analysis and Slip-Resistance Measurement,” Ergonomics, 26, pp. 11–32 (1983).CrossRefGoogle ScholarPubMed
7Perry, J., Gait Analysis: Normal and Pathological Function, SLACK Inc., Thorofare, New York, USA, pp. 20–48 (1992).Google Scholar
8Pai, Y. C. and Iqbal, K., “Simulated Movement Termination for Balance Recovery: Can Movement Strategies Be Sought to Maintain Stability in the Presence of Slipping or Forced Sliding,” J. Biomech., 32, pp. 779–786 (1999).CrossRefGoogle ScholarPubMed
9Winter, D. A., Biomechanics and Motor Control of Human Movement, John Wiley & Sons, New York, USA, pp. 56–57 (1990).Google Scholar
10Kadaba, M. P., Ramakrishnan, H. K. and Wootten, M. E., “Measurement of Lower Extremity Kinematics During Level Walking,” J. Orthop. Res., 8, pp. 383–392 (1990).CrossRefGoogle ScholarPubMed
11Lanshammar, H. and Strandberg, L., “The Dynamics of Slipping Accidents,” J. Occup. Accid., 3, pp. 153–162 (1983).Google Scholar
12Chou, Y. L., You, J. Y., Lin, C. J., Su, F. C. and Chou, P. H., “The Modified Gait Patterns During Stepping on Slippery Floor,” The Chinese Journal of Mechanics (accept for publication, 2000).CrossRefGoogle Scholar
13Woltring, H. J., “A FORTRAN Package for Generalized, Cross-Validatory Spline Smoothing and Differentiation,” Adv. Eng. Software, 8, pp. 104–113 (1986).CrossRefGoogle Scholar
14Craik, R. L. and Oatis, C. A., Gait Analysis: Theory and Application, Mosby-Year Book, St. Louis, USA, pp. 436–449 (1995).Google Scholar
15Tang, P. F., Woollacott, M. H. and Chong, R. K., “Control of Reactive Balance Adjustments in Perturbed Human Walking: Roles of Proximal and Distal Postural Muscle Activity,” Exp. Brain Res., 119, pp. 141–152 (1998).CrossRefGoogle ScholarPubMed
16Tang, P. F. and Woollacott, M. H., “Inefficient Postural Responses to Unexpected Slips During Walking in Older Adults,” J. Gerontol. Med. Sci., 53A, M471–M480 (1998).CrossRefGoogle Scholar