“…In anaesthesia, body sway has been used to assess recovery (Green et al, 1963;Goldman and Kennedy, 1964;Swerdlow and Moore, 1967;Korttila et al, 1975). Objective measurement of sway has been successfully used to quantify recovery from intravenous thiopental (Vickers, 1965, Eriksen et al, 1981Korttila et al, 1981), propranidid (Eriksen et al, 1978) and diazepam (Kortilla et al, 1981) but was not successful with methohexital (Kortilla et al, 1981). Sway has also been shown to be increased after perivascular axillary block with the local anaesthetic mepivacaine (Kjaergard et al, 1984).…”