Indomethacin and Mechanisms Underlying Risk of Falling

Healthy

indometacin, reaction time, postural balance, obstacle avoidance, accidental falls

The purpose of this study is to determine whether indometacin has an effect on reaction time, postural stability, and the avoidance of obstacles.

A lot of (epidemiologic) research is done on causes for falls and factors contributing to falling. Most of this research was conducted on the elderly, either community-dwelling or institutionalised. It became clear that the elderly have a greater risk at falling because of: * physiological changes due to increasing age \[Gerdhem et al., 2005\] * previous falls \[Myers et al., 1991; Lipsitz et al., 1992\] * comorbidity (including RA) \[Bergland et al., 2004; Gerdhem et al., 2005; Lawlor et al., 2003\] * polypharmacy \[Lawlor et al., 2003; Walker et al., 2005; Ziere et al., 2005\] and/or * use of specific drugs like antidepressives, benzodiazepines, vasodilators, and NSAIDs \[Cumming R, 1998; Herings RMC, 2001; Kallin K et al., 2004; Granek et al., 1987\]. The relation between benzodiazepines and falling has been extensively investigated in and affirmed by several fields of research and is practically common sense. However, the (possible) relation between NSAIDs and falling is much less investigated, even though there are various articles in which a higher risk of falling when using NSAIDs is stated; sometimes the risk is even as high as with benzodiazepines \[Cumming R, 1998; Granek et al., 1987; Walker et al., 2005\]. Objective of the study: NSAIDs are drugs that are often prescribed to patients with rheumatic or orthopedic diseases. They seem to be at a greater risk for falls than healthy persons because of their disease, age and medication use. Therefore it is very important to keep this risk as small as possible. In this study healthy adults are measured on reaction time, postural balance and obstacle avoidance with and without use of indometacin or placebo. This is done in order to gain more comprehension in the mechanism and actual risk for falls when using NSAIDs.

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