Age-based normative data for a computerized dynamic posturography system that uses a virtual visual surround environment.

Background: Computerized dynamic posturography (CDP) is the gold standard to differentiate between sensory, motor, and central adaptive impairments to postural control.

Objective: To obtain normative values in healthy adults age 20-69 for a CDP system that uses a full-field dynamic visual surround. This is in contrast to the mechanically movable visual surround used in traditional CDP systems.

A giant planet undergoing extreme-ultraviolet irradiation by its hot massive-star host.

The amount of ultraviolet irradiation and ablation experienced by a planet depends strongly on the temperature of its host star. Of the thousands of extrasolar planets now known, only six have been found that transit hot, A-type stars (with temperatures of 7,300-10,000 kelvin), and no planets are known to transit the even hotter B-type stars. For example, WASP-33 is an A-type star with a temperature of about 7,430 kelvin, which hosts the hottest known transiting planet, WASP-33b (ref.

Vestibular functioning and migraine: comparing those with and without vertigo to a normal population.

Objective: This study compared vestibular functioning in a migrainous vertigo group, a migraine without vertigo group and a control group. It was hypothesised that the migrainous vertigo group would perform worse in tests of vestibular function and gait than the other groups during a non-migrainous period.

Methods: Sixty-six participants (22 per group) were assessed using the head shake sensory organisation test, the gaze stabilisation test, the dynamic visual acuity test and the functional gait assessment.

Vestibular functioning and migraine: pilot study comparing those with and without vertigo.

Background: The current study compared a migrainous vertigo group with a migraine without vertigo group. It was hypothesised that those with migrainous vertigo would have more abnormal test results during a non-migrainous period than those who suffer from migraine without vertigo.

Methods: Both groups, comprising 10 participants each, were tested using: the gaze stabilisation test, dynamic visual acuity test, sensory organisation test, head shake sensory organisation test and functional gait assessment.

Partial body weight treadmill training in persons with chronic stroke.

Purpose: A series of pilot studies were conducted to examine the effects of partial body weight (PBW) ambulation in people with chronic stroke.

Methods: First, we compared gait characteristics during 3 modes of walking: level ground ambulation; level ground ambulation with PBW; and treadmill ambulation with PBW. Second, we examined the effects of repeated PBW treadmill training during level ground ambulation.