geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Gait Characteristics When Walking on Different Slippery Walkways


, : Gait Characteristics When Walking on Different Slippery Walkways. IEEE Transactions on Bio-Medical Engineering 63(1): 228-239

This study sought to determine the changes in muscle activity about the ankle, knee, and hip in able-bodied people walking at steady state on surfaces with different degrees of slipperiness. Muscle activity was measured through electromyographic signals from selected lower limb muscles and quantified to directly compare changes across surface conditions. Our results showed distinct changes in the patterns of muscle activity controlling each joint. Muscles controlling the ankle showed a significant reduction in activity as the surface became more slippery, presumably resulting in a compliant distal joint to facilitate full contact with the surface. Select muscles about the knee and hip showed a significant increase in activity as the surface became more slippery. This resulted in increased knee and hip flexion likely contributing to a lowering of the body's center of mass and stabilization of the proximal leg and trunk. These findings suggest a proximal-distal gradient in the control of muscle activity that could inform the future design of adaptable prosthetic controllers. Walking on a slippery surface is extremely difficult, especially for individuals with lower limb amputations because current prostheses do not allow the compensatory changes in lower limb dynamics that occur involuntarily in unimpaired subjects. With recent advances in prosthetic control, there is the potential to provide some of these compensatory changes; however, we first need to understand how able-bodied individuals modulate their gait under these challenging conditions.

US$19.90

PMID: 26552073

DOI: 10.1109/TBME.2015.2497659


Other references

Laurance, W.F.; Camargo, Jé.L.C.; Fearnside, P.M.; Lovejoy, T.E.; Williamson, G.Bruce.; Mesquita, R.C.G.; Meyer, C.F.J.; Bobrowiec, P.E.D.; Laurance, S.G.W., 2017: An Amazonian rainforest and its fragments as a laboratory of global change. We synthesize findings from one of the world's largest and longest-running experimental investigations, the Biological Dynamics of Forest Fragments Project (BDFFP). Spanning an area of ∼1000 km<sup>2</sup> in central Amazonia, t...

Fegert, J.M.; Warnke, A.; Herpertz-Dahlmann, B., 2004: Access to help for emotionally disabled children and adolescents must be continued. Zeitschrift für Kinder- und Jugendpsychiatrie und Psychotherapie 32(4): 223-224

Anonymous, 1991: Personality styles of patients asserting environmental illness. Journal of Occupational Medicine. 33(4): 431, 435, 439 Passim-431, 435, 439 Passim

Low, S.H., 1957: Banding with mist nets. Bird Banding: 115-128

Lopez Bermudez F.; Romero Diaz M.A.; Ruiz Garcia A.; Fisher G.C.; Francis C.; Thornes J.B., 1984: Erosion and ecology of semi-arid Spain; Mula Basin, Murcia. Cuadernos de Investigacion Geografia: -2, Pages 113-126. 1984.

Brechtel H.M., 1970: Forest and retention simple methods to determine the local significance of the forest for flood flow reduction. Deutsche Gewaesserkundliche Mitteilungen 14(4): 91-102

Hingson, R.W.; Heeren, T.; Winter, M.R., 2006: Age of alcohol-dependence onset: associations with severity of dependence and seeking treatment. OBJECTIVE. We explored whether people who become alcohol dependent at younger ages are more likely to seek alcohol-related help or treatment or experience chronic relapsing dependence.METHODS. In 2001-2002 the National Institute on Alcohol Abuse...

Barus, V.; Libosvarsky, J.; Perez Martinez, A., 1991: On the Toxus creolus vs T. serripenis (Poeciliidae) and remarks to tribe Girardinini from Cuba. During repeated samplings we gathered a relative numerous material of the species Toxus creolus (Garman, 19895) from several localities of Cuba. Five meristic and twenty morphometric characters were examined and the morphology of gonopodium was do...

Larsson, M.C.; Hansson, B.S.; Strausfeld, N.J., 2004: A simple mushroom body in an African scarabid beetle. This account describes novel mushroom body organization in a coleopteran insect, the African fruit chafer Pachnoda marginata. Each of its prominent mushroom bodies possesses a pair of simple calyces comprising two populations of Kenyon cells, the...

Balcerzak S.P.; Barefield K.; Larrimer N.R.; Jensen W.N., 1969: Erythrocyte surfaces as examined by the inst scanning beam electron microscope. Clinical Research 17(2): 319