Biomedical subjects

Sue Jenkins

Publications and source records attributed to Sue Jenkins.

6 recordsLinked to original sources

PubMed1998

Ventilatory and cardiovascular responses to unsupported low-intensity upper limb exercise in normal subjects.

The ventilatory and cardiovascular responses, and the rating of perceived exertion (RPE) to three types of unsupported low-intensity upper limb exercise (static, dynamic - unilateral and bilateral) were investigated in 22 normal subjects. A significant increase in tidal volume, respiratory rate, minute ventilation, oxygen consumption, carbon dioxide production and pulse rate occurred during all three exercises (p < 0.05). With the exception of tidal volume, these increases were significantly greater with dynamic exercise (p < 0.05). Local RPE was significantly higher than general RPE following both static and dynamic exercise (p < 0.05) with no significant differences between the three exercises. These findings provide some basis for the development of exercise protocols for testing in post-operative patients.

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PubMed1998

Rate and force of application of manual chest percussion by physiotherapists.

The rate and force of manual chest percussion as applied by 35 physiotherapists was investigated. The influence of gender, body weight, body mass index (BMI), rate and frequency of usage on force were examined. Percussion was applied to a healthy male for 35 seconds and the rate and force were measured using a force platform. The rate and force varied among subjects. The mean (SD) rate and force of percussion were 6.60 (1.00) Hertz and 58.10 (15.32) Newtons respectively. There was no relationship between force and 1) gender, 2) body weight, 3) BMI or 4) frequency of usage of percussion. A weak relationship was found between rate and force (r = -0.358, p = 0.034). Thirty-two subjects demonstrated a hand dominance.

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PubMed1998

Respiratory and cardiovascular responses to manual chest percussion in normal subjects.

The respiratory and cardiovascular responses to manual chest percussion were studied in seven naive healthy subjects. Percussion during quiet breathing, percussion with thoracic expansion exercises (TEE) and TEE alone were applied to subjects in side-lying. Inspired volume, oxygen consumption, oxygen saturation, heart rate and blood pressure were measured before, during and after each technique. Significant increases in inspired volume and heart rate occurred with all three techniques (p < 0.01). Oxygen consumption increased with all three techniques however only the increases during percussion with TEE, and TEE alone were significant (p < 0.01). Oxygen saturation increased with percussion with TEE and TEE alone (p < 0.01). No significant changes in blood pressure were observed.

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PubMed1997

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PubMed1996

The effect of breathing exercises with body positioning on regional lung ventilation.

This review discusses the distribution of ventilation in the normal adult lung and includes the influence of quiet and deep breathing on regional ventilation. The effects of breathing at low lung volumes; inspiratory flow rate; posture; age; and body weight on ventilation are also described. A selection of breathing exercises are examined with regard to their ability to influence regional ventilation. There is no evidence that breathing control (diaphragmatic breathing exercises) improves regional ventilation to the dependent zones of the lungs. Limited evidence does suggest that thoracic expansion exercises, whereby respiratory muscles are voluntarily contracted to alter regional chest wall expansion, can improve underlying ventilation. However, there remains a paucity of evidence regarding the effects of breathing exercises on regional ventilation.

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PubMed1996

The physiotherapy management of patients undergoing coronary artery surgery: A questionnaire survey.

The current physiotherapy management of patients undergoing coronary artery surgery in 22 public and 13 private hospitals across Australia and New Zealand was examined using a questionnaire survey. Respondents were asked to identify assessment and treatment techniques used in the pre- and post-operative management. An 83 per cent response from physiotherapists was obtained. Ninety-four per cent of respondents reported that pre-operative assessment was performed routinely. Eighty-nine per cent of respondents indicated that all patients were treated routinely by physiotherapists in the post-extubation period. Positioning and deep breathing exercises were the most commonly used techniques for patients post-extubation. Factors determining treatment choice and the impact of research on current physiotherapy practice are discussed.

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