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Biomedical subjects

D W Low

Publications and source records attributed to D W Low.

4 recordsLinked to original sources

Soft-tissue injuries of the hand and wrist in racquet sports.

Participants in racquet sports are prone to a host of soft-tissue injuries to their hands and wrists owing to the direct impact of the handle as well as the repetitive stretching that occurs as the wrist is forcefully whipped into extremes of position. Tendinitis can occur in all tendons but is most common in the first dorsal compartment, flexor carpi ulnaris, flexor carpi radialis, and extensor carpi ulnaris. Ligamentous tears can produce instability patterns that, if unrecognized, can become chronic disabilities. Vessels and nerves can be compromised by repetitive blunt trauma to the structures themselves or by entrapment by surrounding structures. Prompt diagnosis will allow for the appropriate treatment and eliminate the need for vague terms such as "wrist sprain." The goal of early recognition and treatment is to allow the player to get back to the court and prevent the development of chronic discomfort or permanent impairment.

Athletic Injuries

Differential hemispheric activation during complex visuomotor performance.

Bilateral EEGs were recorded from central, temporal and parietal scalp locations from seven male and seven female human subjects (Ss) while they were engaged in verbal and non-verbal tasks. Alpha power was higher in the right hemisphere when Ss listened to verbal material being read to them; the reverse was true when Ss performed in an imaginative block rotation task. Compared with intergame rest periods, alpha power was suppressed in the right hemisphere when Ss either watched or played Pong (TV tennis). Watching Pong was as effective in producing in producing alpha asymmetry as playing the game in the parietal region, but motor involvement enhanced asymmetry at central and temporal leads. Performance was non-linearly related to asymmetry, first increasing and then decreasing as asymmetry increased.

Adult

Effects of chlorhexidine spray on plaque and gingival health in institutionalized persons with mental retardation.

In this study, eight institutionalized males received a 0.12% chlorhexidine gluconate spray twice daily. A second group of eight males received a placebo spray in the same manner. The results indicated that pump-administered chlorhexidine spray can effectively reduce plaque and gingivitis in patients with mental retardation who are unable to brush their own teeth.

Adult