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Evidence of altered kinesthesia about the knee following increased skin temperature

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Title: Evidence of altered kinesthesia about the knee following increased skin temperature
Author: Lamers, Meghan
Department: Department of Human Health and Nutritional Sciences
Program: Human Health and Nutritional Sciences
Advisor: Bent, Leah
Abstract: Introduction: Skin information does contribute to knee joint position sense (Collins et al., 2005; Edin, 2001). It remains unclear if increased skin temperature can affect dynamic joint position sense (DJPS) about the knee. Purpose: To determine how increased skin temperature can affect knee DJPS. Method: Participants (n=11; F= 6) were seated in a HUMAC NORM dynamometer (CSMi Medical Solutions, Stoughton, MA). Participants pressed a trigger when they perceived their left knee reached a 90o angle. Five extension and five flexion trials were performed at baseline (28.74 ± 2.43 oC). Skin temperature was increased (38.05 ± 0.16 oC) and the protocol was repeated. Directional error (DE), absolute error (AE) and precision absolute error (PAE) were calculated. Results: Increasing knee-skin temperature improved extension AE (p= 0.032). Discussion: Information from muscle spindles may be preferentially weighted over information from cutaneous afferents during knee extension. Conclusion: Increased knee-skin temperature improves DJPS during knee extension.
URI: http://hdl.handle.net/10214/14172
Date: 2018-07


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