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1.
J Clin Med Res ; 1(5): 300-1, 2009 Dec.
Article in English | MEDLINE | ID: mdl-22481995

ABSTRACT

UNLABELLED: Tumours can metastasize to sites of other tumours but this is a rare event. The phenomenon has been well described in primary tumours of the lung and breast. This has been described in melanomas but as very rare occurrence. We describe a case of a malignant melanoma that metastasized to a pre-existing meningioma. We have tried to highlight this phenomenon in patient with melanoma and need for close vigilance of other pre-existing tumours to identify early metastasis. KEYWORDS: Melanoma; Metastasis; Tumour to Tumor; Intracranial; Meningioma.

2.
J Forensic Sci ; 47(6): 1303-8, 2002 Nov.
Article in English | MEDLINE | ID: mdl-12455654

ABSTRACT

This study compared utilized coefficient of friction (COF) measured during nonslip pedestrian gait to estimated utilized COF values calculated using anthropometric (i.e., leg length) and stride characteristic data (i.e., impact angle, step length). Twenty healthy adults walked at slow, medium, and fast speeds with kinematic and kinetic data recorded simultaneously. Estimated and measured impact angle varied with walking speed, with greater angles evident with faster speeds (p < 0.001 and p < 0.05, respectively). The estimated impact angle was greater than the measured impact angle (p < 0.05). Estimated and measured peak utilized COF values varied with walking speed, with higher utilized COF values evident with faster speeds (p < 0.001 and p = 0.001, respectively). Estimated utilized COF values were 86, 118, and 131% greater than measured peak utilized COF values for slow, medium, and fast speeds, respectively (p < 0.001). Higher estimated utilized COF values varied moderately with increased measured peak utilized COF values (r = 0.522; p < 0.001). These data suggest that impact angle and step length alone cannot be used to accurately assess the utilized COF on level walking surfaces.


Subject(s)
Gait/physiology , Walking/physiology , Accidental Falls , Adult , Anthropometry , Biomechanical Phenomena , Female , Friction , Humans , Kinetics , Leg/physiology , Male , Mathematics , Reference Values , Statistics as Topic/methods
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