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Biomedical subjects

M M Fairweather

Publications and source records attributed to M M Fairweather.

3 recordsLinked to original sources

Cricket bowling deliveries and the discrimination ability of professional and amateur batters.

Bowlers in cricket try to disguise their bowling action by movement pattern similarity. The batter's task is, therefore, to solve rapidly perceptual discrimination problems. Previous research has suggested that batters can discriminate perceptual cues that provide depth or target information. However, at present, there is a lack of applied research evidence on further perceptual cue utilization, including bowling delivery identification. This ability is required when batting against wrist-spin bowlers who may use five different types of delivery. In the present study, we assessed this perceptual discrimination ability among three distinct standards of batters. In addition, the relative potency of body action and ball flight information was assessed by visual occlusion techniques. We found that more expert batters in general showed greater perceptual discrimination skills when faced with different ball types. However, this discrimination ability was linked specifically to delivery type and to previous experience. We also found that additional ball flight information provided no more advantage to this discrimination ability. This finding reinforces the importance of advanced cue information and the need to expose cricket batters to different bowling actions. Further study of the development of movement pattern recognition is recommended.

Adult↗

Hemispheric teaching strategies in the acquisition and retention of a motor skill.

An extreme preference in processing information within either the left or right hemisphere is known as hemisphericity. A previous study investigating hemisphericity as a factor in motor skill learning (Murray, 1979) found that matching subjects' hemisphericity characteristics with hemispherical teaching strategies enhanced skill acquisition. In contrast, our study examined the effects of hemispherical teaching strategies on a group of subjects who did not present hemisphericity. Right-handed male high school students were randomly assigned to either a left hemisphere, right hemisphere, or an interhemispherical teaching condition. Subjects in the right hemisphere and interhemispherical conditions performed and learned the skill more effectively than subjects in the left hemisphere teaching condition. The right hemisphere and interhemispherical groups performed comparably in acquisition; however, the interhemispherical group showed significantly better retention of the skill. Motor skill acquisition and retention for nondominant processors appears best served by directing both verbal and nonverbal attention to the skill.

Adolescent↗

Ideokinetic imagery as a postural development technique.

In two experiments we examined the effectiveness of ideokinetic imagery and flexibility combined with abdominal strength training as methods for improving the spinal angles of lordosis and kyphosis and reducing low back pain. Ideokinetic imagery is a postural development technique that involves using movement images to gain subcortical control over the spinal musculature. Experiment 1 investigated the effectiveness of these treatments for males with a previous history of low back pain. Findings indicated that only ideokinetic imagery had a positive effect on the spinal column and low back pain. Experiment 2 extended these findings by investigating males and females using a noninvasive video analysis technique to record changes in spinal angles. This study further supports the effectiveness of ideokinetic imagery as a postural development technique in males with acute spinal angles. In these subjects spinal angles improved significantly, and the subjects reported complete cessation of low back pain. This research supports the use of ideokinetic imagery as an inexpensive and noninvasive technique to improve poor posture and reduce low back pain.

Abdominal Muscles↗