Browsing by Subject "rehabilitation sciences"

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    Open Access
    Assessment of lung function abnormalities in adult patients with tuberculosis in a high HIV-prevalent setting and the impact of a pulmonary rehabilitation intervention to improve lung function, functional capacity, and quality of life
    (2022) Manie, Shamila; Amosun, Seyi Ladele; Meintjes, Graeme; Allwood, Brian; Zinyakatira, Nesbert
    Background: Globally, tuberculosis (TB) continues to be a major health problem. In the most recent World Health Organisation (WHO) Global Tuberculosis Report of 2019, TB was ranked as the leading cause of death from an infectious disease ahead of the human immunodeficiency virus (HIV) and acquired immune-deficiency syndrome (AIDS). In the 2019 WHO Global Report on TB, there is little information relating to TB post-cure effects and management. Although there is evidence that successful completion of TB treatment does not equate to normal lung function, there is growing need for research, both during and after TB treatment, on the extent of lung function abnormalities and how these impact on the individual's quality of life (QoL). Pulmonary rehabilitation programmes may provide a continuum of care for individuals with TB to address both lung function abnormalities as well as positively impacting on QoL. Objectives: The present PhD thesis aimed to provide insight into the extent of pulmonary disease in individuals with pulmonary TB during and near completion of TB treatment as well as to establish whether provision of a pulmonary rehabilitation programme (PRP) could address the research gap. To achieve this, three linked studies were undertaken in the form of observational (prevalence) study (Study 1), a systematic review (Study 2), and a randomised control trial (Study 3). Study One: Observational Study Objectives: The overall aim of the present observational study was to ascertain the prevalence of lung function abnormalities in first time, drug sensitive individuals living with TB, with or without HIV coinfection, at near completion (at least four months) of TB treatment. The specific objectives were to determine: i) baseline clinical and socio-economic profile, ii) baseline information pertaining to the QoL outcome measures of EQ-5D-3L and the St George's Respiratory Questionnaire (SGRQ), iii) measure lung function parameters, iv) establish the proportion of participants with normal or abnormal (obstructive, restrictive, or mixed) lung function and the severity of these, v) whether a correlation of lung function abnormalities with chest x-ray (CXR) abnormalities exist, vi) establish whether a relationship exists between lung function and QoL measures, and vii) identify the predictors of lung function abnormality in individuals being treated for active TB. Methods: A cross-sectional observational study using a sample of convenience was conducted. Inclusion criteria included all adult male and females between the age of 18-80 years with confirmed (smear positive or by CXR) drug-susceptible TB who were receiving treatment, with or without HIV coinfection, for at least four months (16 weeks). ii Participants were excluded from Study 1 if they were adult patients who had had previous TB episodes, recent severe chest trauma (within the previous three months), a recent history of pneumonia, known atopic asthma, chronic bronchitis, emphysema, bronchiectasis prior to TB diagnosis, cardiac failure, or any other unrelated respiratory disease as reported in their medical folder. Participants completed two QoL questionnaires (EQ-5D-3L and SGRQ), a self-designed clinical research form to collect descriptive data, a six-minute walk test (6MWT), CXR, and spirometry once off. Results: The sample of 305 participants were predominantly male (n=168:55; 1%), had a median age of 36 years (IQR:28-43), and had median time of 19 weeks (IQR:18-22) on TB treatment. Overall, 32% of the sample presented with abnormal lung function (obstructive=11%, restrictive=15%, and mixed=6%). Only 2.2% of the total sample had two or more co-morbidities. There was no statistically significant difference (p=0.29) in distance covered by participants who had obstructive compared to restrictive lung function abnormality. After logistic regression analysis of clinical and sociodemographic variables (multi-variate), only being older (56–65 years old) and being obese were statistically significant (p=0.02 and p=0.04 respectively). When considering QoL, only the domain of mobility for the EQ-5D-3L questionnaire was statistically associated with abnormal lung function (p=0.02). Linear regression modelling for continuous variables of lung function (FEV1, FVC, FEV1/FVC and percentage predicted of FEV1, FVC, and FEV1/FVC) with SGRQ, 6MWD, and CXR scores yielded no predictor. Conclusion: Overall, 32% of participants presented with abnormal lung function, which is lower than comparator studies investigating lung function in TB populations. Quality of life measures for most participants was considered good at the time of assessment. Limitations to Study 1 related to the absence of normative data for a healthy population relating to lung function and 6MWD to compare the findings in this TB population. Recommendations for future research would be to establish normative data for these outcome measures. Regarding lung function testing, it is recommended that training of correct execution of the spirometry techniques is performed prior to assessment as the technique may be unfamiliar compared to the routine tests done at clinic visits for individuals receiving TB treatment. iii Study Two: Systematic Narrative Review A systematic review was conducted to establish the evidence of the impact of non-pharmacological intervention programmes (pulmonary rehabilitation) in the rehabilitation of individuals living with TB on lung function outcomes. Methods: MEDLINE via Pubmed, CENTRAL, CINAHL, PEDro, Web of Science, Scopus, Science Direct, and African Index Medicus, including Google Scholar were searched (from January 1995 to December 2016 with an updated search in November 2018) for randomised control trials, quasi-experimental and pre-post-test studies on PRPsfor adult individuals with TB specifically with lung function measures as primary outcome. Results: In total, 1 705 studies were obtained from the search. Once duplicate studies were removed, 1 220 studies remained. The titles and abstracts of these studies were screened resulting in 1 210 studies being excluded. Therefore, 10 studies were potentially eligible. Once the full-text articles were assessed, four studies met the inclusion criteria. Of the included studies, only one was a randomised control trial, two studies were single arm before and after studies, and one study was a prospective non-randomised open trial (two arms). In total, there were 178 participants in these studies, with sample sizes ranging from 10 to 67 participants. All four selected studies had both male and female participants; however, overall, male participants were the majority with 69% versus 21% females. The mean age across the studies was 70 years. No statistically significant difference (p>0.05) was found regarding lung function parameters and the PRPs. No meta-analysis could be performed as data could not be pooled due to the differences in study characteristics and outcome measures. Conclusion: This review was unable to support or negate the use of pulmonary rehabilitation for individuals with TB primarily due to the lack of well-designed and executed randomised control trials. The studies showed that no effect on FEV1 was demonstrated. The researchers recommended that future research investigates the extent of pulmonary sequelae in patients after completion of TB chemotherapy in large-scale studies. Long-term follow-up in those who have had TB without surgical intervention should be prioritised to see the extent of lung function disorders in this population, particularly in countries on the high-burden list for the disease. A further recommendation is that well executed randomised control trials that control for biases to investigate pulmonary rehabilitation in populations of individuals with TB should be prioritised as there is a need to develop an evidencebased continuum of care. iv Study Three: Randomised Controlled Trial Objectives: The overall objective of study three was to determine what the impact of a contextually relevant PRP would have on individuals living with TB, with or without HIV co-infection, on outcomes related to lung function, functional capacity, and QoL. Methods: A pilot randomised, single blinded, pre-test-post-test design was used. Inclusion criteria were all adult males and females between 18-65 years with TB confirmed by Gene Xpert, irrespective of number of TB episodes, HIV status, or having chronic obstructive pulmonary disease. Participants had to be within their first week of TB treatment. Participants with only extra-pulmonary TB, recent severe chest trauma (within the last three months), a recent history of pneumonia (within one month), known atopic asthma, cardiac failure, or any other unrelated respiratory disease as reported in their medical folders or who had defaulted on their treatment were excluded. In addition to this, if participants failed the pre-participation health screening and were non-ambulate due to paralysis or amputation, they were also excluded. Fifty-eight participants were randomised into a control group (CG) receiving only pharmacological therapy and the intervention group (IG) who received pulmonary rehabilitation in addition to pharmacological therapy. The PRP was held for 12 weeks and consisted of two weekly sessions with a duration of 45 minutes each, which was delivered at a community centre. Participants completed two QoL questionnaires (EQ-5D-3L and SGRQ), a self-designed clinical research form to collect descriptive data, a three-minute step test, and spirometry at three time points (enrolment, at six weeks, and at 12 weeks). T-tests were conducted to determine the difference between means of the CG and IG for lung function parameters, functional capacity, and QoL outcomes. Results: There were 29 participants in each group. Regarding sex, age, and number of co-morbidities the two groups were well matched. Regarding HIV status, the CG had more participants that were HIV positive (n=22) and on anti-retroviral therapy (n=11) than their IG counterparts (n=13 and n=5 respectively). Nearly half of the participants had a first time TB diagnosis, with the participants in the IG having reported more recurring TB incidences overall (n=16 vs. n=13). A t-test for difference between means showed no statistical significance for the CG and IG regarding FEV1, FVC, and FEV1/FVC ratio for absolute or percentage predicted values. Forty-three percent of participants in the total sample had normal lung function at baseline, with the remaining participants being classified as having either obstructive (26%), restrictive (21%), or mixed (10%) lung function. At baseline, 48% of participants in the CG had abnormal lung function compared to 67% in the IG. At six weeks there was no change in the CG regarding lung abnormalities. However, the IG only had 33% abnormal lung function at the same time point. v Although there was no statistical significance for any of the lung function categories, there was a 42% improvement in normal lung function at six weeks in the IG compared to the CG at baseline. The median baseline number of steps taken by the CG was 79 steps (IQR:42-134) compared to 117 steps by the IG (IQR:84-154). A t-test conducted to test the difference between means for the CG and IG was statistically significant for the step test (p=0.002) at six weeks for the IG, but not at 12 weeks (p=0.13). No correlation was found between the SGRQ (QoL parameter) and any lung function parameter (p>0.05) at 12 weeks. Conclusion: Although the changes in lung function, functional capacity, and QoL did not reach statistical significance at completion of the PRP for the IG, the continued improvement in all the outcomes for the IG from 0 weeks to 12 weeks holds potential clinical significance.
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    Early childhood development practitioner’s experience of the occupation of nurturing with children from birth to five years: a descriptive qualitative study
    (2019) Stemmert, Barbara; Sonday, Amshunda
    Introduction The purpose of this qualitative descriptive study was to describe the meaning of what the occupation of nurturing was for Early Childhood Development (ECD) practitioners practicing in Khayelitsha educares. This information gave rise to a shared understanding of what the occupation of nurturing was for ECD practitioners. An occupation not explored on the national or international platforms though greatly needed in supporting a thriving learning environment for young children. The Aim The aim was to describe the experiences of ECD practitioner’s occupation of nurturing within educares in a low socio- economic environment of Khayelitsha. The Objectives To describe the ECD practitioners experience of participating in the four-day psychosocial Healing Arts training workshop facilitated by Bambelela. To explore how the ECD practitioner’s self-awareness informed their understanding of their occupation of nurturing in providing a nurturing learning environment. To describe what the enablers and barriers were as experienced by ECD practitioners in fulfilling their occupation as nurturer. To describe practitioner’s understanding of how their behaviour influenced the learning environment in how children learn. The Methodology Application of the qualitative approach utilized the descriptive tradition of inquiry which captured the nurturing experiences of the participants. The application of purposeful sampling in the selection of participants guided by the inclusion and exclusion criteria ensured a standardized baseline of skills and training. Data collected used semi structured interviews, document reviews, researcher notes and member checking for data verification. The data analyses process was guided by the application of the five stages as described by 4 Pope, Ziebland and May namely familiarization, thematic framework development, indexing, charting and mapping. The data analyses stages were guided through familiarization of the saturated data collected, which led to the identification of a thematic framework. This framework informed a structured process, which linked participant’s responses to the study’s objectives. The indexing comprised of the development of codes from the data, after further sorting and clustering the categories evolved. The charting process provided more information as the data was sorted into categories. This process further collapsed the categories, which informed the development of three themes. The mapping of categories per theme was undertaken, which informed the various facets interacting and diverging in the occupation of nurturing. Guba’s model guided the scientific rigour of the study by focusing on credibility, transferability, dependability and confirmability. Findings Three themes emerged The Journey, The Awakening and The Game Changers. The findings showed the value in sharing life experiences through interaction with peers, which led to healing. Practitioners shared their positive and negative attitudes towards child handling as well as the power of knowledge and self-regulation. Exploration of the technical skills needed for child stimulation and management, characteristics of a practitioner, and environmental enablers and barriers. Conclusion The findings elucidated that practitioners became aware of the attributes and skills needed to provide children with a positive, caring and stimulating foundation within an educare. They achieved this through guided group facilitation in the psychosocial training workshop, which in turn ignited a healing process. The holistic approach to the practitioner training created the awareness and motivation for them to explore their occupation of nurturing. They articulated the critical enablers and barriers to their role as practitioner in fulfilling this occupation.
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    The impact of training load on injury and illness in a 12-week training period for an iron-distance triathlon
    (2019) Berry, Darryn; Buchholtz, Kim; Burgess, Theresa
    BACKGROUND Given that triathlon is recognised as an official sport by the International Olympic Committee (IOC), a focus on injury prevention strategies for participation in triathlon is necessary. A model for injury prevention programme development that is used currently is the Translating Research into Injury Prevention Practice (TRIPP) model. The literature on iron-distance is currently limited to the first two stages of this model, which focus on injury and illness epidemiology. Current research has predominantly investigated injuries and illness in professional or Olympic distance (OD) triathletes. Iron-distance triathlon is a popular form of triathlon, evidenced by the recent growth in participation in the sport from recreational to elite levels. However, there is limited evidence regarding injury or illness epidemiology for iron-distance triathlon. The impact of training loads on injury and illness in iron-distance triathletes is also poorly understood. AIMS The aim of this study was to determine the impact of training load on injury and illness in a 12-week training period for an iron-distance triathlon. SPECIFIC OBJECTIVES The objectives of this study were to (1) Describe the average weekly training load in amateur iron distance triathletes over a 12-week training period prior to an IRONMAN™ race; (2) Describe the total and weekly average prevalence of overuse injury, substantial overuse injury and illness, and the average severity of overuse injuries and illness in amateur iron-distance triathletes over a 12-week training period prior to an IRONMAN™ race; (3) Determine the incidence and severity of acute injuries in amateur iron-distance triathletes over a 12-week training period prior to an IRONMAN™ race; (4) Determine the average weekly training load threshold above which there is a significantly increased risk of injury or illness in amateur iron-distance triathletes over a 12-week training period prior to an IRONMAN™ race; and (5) Determine any associations between the prevalence of overuse injury and risk factors associated with injury (including age, gender, history of previous injuries and triathlon experience) in amateur iron-distance triathletes over a 12-week training period prior to an IRONMAN™ race. METHODS This study had a prospective, longitudinal, descriptive cohort design. Thirty-seven amateur triathletes who were training for the IRONMAN™ 2018 African Championships were included. All participants had entered for the event prior to the start of the data collection process. Participants were excluded if two or more weeks of training data were missing. Online questionnaires were used to collect weekly training load, injury and illness data over a 12-week training period. Internal training load was measured as sessional Rate of Perceived Exertion (sRPE), while external training load was measured as volume (hours). Acute training load and the acute:chronic workload ratio were used to relate training load to injuries and illness. Total and weekly average prevalence and severity of overuse injuries, substantial overuse injuries and illness were obtained. RESULTS Participants trained for 10.5 ± 2.8(7)(7)(7) hours per week on average, with a weekly average sRPE of 13.1 ± 1.7. The average weekly training load of participants was 8 170 ± 3 565 arbitrary units (AU). The total prevalence of injury and illness were 65% (n = 35) and 62% (n = 47) respectively. The average weekly prevalence of injury and illness were 19% (n = 7) and 9% (n = 4) respectively. The injury incidence was 9.1 per 1 000 training hours. Overuse injuries were more common than acute injuries, with a prevalence of 89% and an incidence of 8.1 per 1 000 hours. The severity of injuries was mostly mild, and the severity of illness mostly moderate. Most injuries occurred during training, and the predominant location of the injury was the knee. Illness symptoms that were reported most commonly included fatigue or malaise. There were no significant relationships between low, moderate or high training loads and injury or illness respectively. CONCLUSION This study identified a relatively high prevalence of injury and illness in amateur iron-distance triathletes. The small sample size significantly limited our interpretation of potential associations between training load and the prevalence of injury and illness. Future studies should consider the next step in the TRIPP protocol, namely by investigating the specific aetiology of the risks associated with injury and illness, including training load. The findings of this study highlight the importance of furthering our understanding of factors contributing to the development of injury and illness in iron distance triathletes to support safe participation and improve performance.