Effectiveness of different interventions to reduce occupational sitting among office administrators at Rhodes University
- Authors: Malesa, Thato
- Date: 2020
- Subjects: Standing position , Sedentary behavior , Work environment , Employee health promotion , Office furniture -- Design , Industrial hygiene , Employees -- Health risk assessment , Human engineering , Compliance
- Language: English
- Type: text , Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/166403 , vital:41360
- Description: Background: Sitting for prolonged periods is common in the working environment. Office workers are exposed to long periods of sitting time at work. Research has reported associations between prolonged sitting and negative health implications. As such studies have proposed different interventions aimed at reducing sitting times in the workplace. The aim of the current study was to evaluate the effectiveness of two different interventions, physical intervention (sit-stand worktables) and personal intervention (instruction to stretch) on compliance and reducing occupational sitting behaviour. The study also aimed to investigate the effectiveness of interventions in improving or impairing mood. Methods: The study took the form of a fieldbased study atRhodes University, Makhanda, South Africa. Fifteen full–time office workers in different divisions participated in the study. Participants were randomly allocated to either the physical or personal intervention group. In both intervention groups, partic ipants were prompted to stand for five minutes every hour during the workday to either work in a standing position or perform stretches. Over the course of the experiment, desk occupancy, sitting/standing time and mood effect were recorded in both intervention groups Both intervention groups were monitored for a period of three months (58 days). Results: The study found that the physical intervention group was an effective approach to reduce prolonged sitting in the workplace in comparison to the personal intervention group. Over the course of the experiment, there was sustain usage of interventions in both groups, however, in the physical intervention group desk usage decreased overtime. The findings of the study also show that some participants were more compliant with the study procedures than others. It was also found that mood improved upon introducing interventions in the workplace. However, with the outcomes of the results, the study acknowledges that several factors emerged which are likely to impact compliance, which future studies may investigate. Conclusion: Although sit-stand worktables are expensive, it seems like introducing them was successful in reducing sitting time and changing sitting behaviour in comparison to an intervention that instruct s individuals to stand up and stretch.
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- Date Issued: 2020
The effect of total standing duration during sit-stand regimes on cognitive performance, rating of perceived exertion and heart rate frequency
- Authors: Berndt, Ethan
- Date: 2017
- Subjects: Standing position , Sedentary behavior , Work environment , Employee health promotion , Office furniture -- Design , Industrial hygiene , Employees -- Health risk assessment , Human engineering
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: http://hdl.handle.net/10962/7433 , vital:21260
- Description: Although there may be numerous health benefits of sit-stand workstations, the effects of sedentary or non-sedentary work configurations on cognitive performance and executive function remain unclear (Bantoft et al., 2016). It is essential to determine any performance effects of these different work configurations; as improvements in the workplace, working posture and discomfort need to be justified in terms of improvements (or no deterioration) in work performance (Liao and Drury, 2000). The aim of the current research was to investigate the effect of two sit-stand regimes differing in total standing duration, on cognitive task performance, physiological responses and subjective ratings of perceived exertion. This laboratory based investigation incorporated a repeated measures design, where a test battery was utilized. Three experimental conditions were tested during three separate testing sessions by 30 participants. Condition 2 (15 minutes standing, followed by 45 minutes seated) and Condition 3 (15 minutes seated, followed by 15 minutes standing, followed by 15 minutes seated, followed by 15 minutes standing) were compared to each other and Condition 1 (60 minutes seated). The findings of this study show that even though the two different sit-stand regimes did not result in a significant impact on cognitive task performance, an immediate postural effect for psychomotor response time and a delayed postural effect for working memory were found. The participants perceived Condition 3 as the most physically exerting condition. Heart rate frequency was not significantly different between the conditions, but the immediate seated posture had a significantly lower heart rate frequency compared to the standing posture; indicating that being seated elicited lower energy expenditure compared to standing. Heart rate frequency while standing had a greater degree of variation compared to being seated. Taking the findings of this study into account, it is recommended that: one should be seated while performing this type of working memory task; that one should be standing while performing this type of psychomotor task; that the recommendation that implementing standing at work can be used as a blanket strategy to increase energy expenditure in all individuals needs to be explored further and that individual differences may impact energy expenditure.
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- Date Issued: 2017
Factors affecting the utilisation of a workplace voluntary counselling and testing programme in the Eastern Cape
- Authors: Jusayo, Nomonde
- Date: 2013
- Subjects: HIV infections -- South Africa -- Prevention , HIV infections -- Treatment , Employee health promotion
- Language: English
- Type: Thesis , Masters , MSc
- Identifier: vital:9428 , http://hdl.handle.net/10948/d1010273 , HIV infections -- South Africa -- Prevention , HIV infections -- Treatment , Employee health promotion
- Description: The world has entered the third decade of the HIV and AIDS epidemic under different times in which the epidemic is treatable. The International Labour Organisation (ILO) (2005) declares HIV and AIDS a developmental crisis destroying developmental gains over generations. Since HIV and AIDS affect the most productive segment of the labour force, it is therefore not only a threat to development but also to the world of work without which development will be sacrificed (ILO, 2001). Collaborative response efforts that seek to mitigate the HIV pandemic by government, business and higher education institutions have been fraught with challenges. The main challenge that beset these efforts is that, in the absence of an HIV vaccine, voluntary counselling and testing remains the gateway to access treatment and care. Regrettably, participation in VCT has been confronted by challenges of low utilisation. This precedes the objectives of this study, which were to explore and describe factors that serve as barriers and facilitators of workplace VCT programmes with the objective to improve participation in these programmes. The current study was a product of a qualitative and exploratory-descriptive research design. A nonprobability convenience sampling method was used to sample participants for this study. The targeted population in this study were the non-academic employees of an academic institution in the Eastern Cape. Data was collected by means of focus group discussions and by using semi-structured interviews. The focus group samples comprised of an equal number of men and women with an overall participation of fifty-six participants. Data obtained was transcribed, thematically analysed and coded using Henning, Van Rensburg, and Smit's (2004) qualitative analysis and interpretation method. Findings of this research revealed that factors that facilitate and inhibit voluntary counselling and testing are psychosocial and cultural by nature. At psychosocial level, participants reported factors that facilitate voluntary counselling and testing to include psychological readiness to go for HIV testing, reassurances of confidentiality of HIV test results and normalising HIV testing (making the process more like that for screening and diagnostic testing). Cultural factors included cultural practices and beliefs such as "intonjane" and traditional circumcision - positive cultural nurturers that could facilitate VCT participation. Results of this study showed a lack of basic knowledge about VCT and fear of knowing one's status, fear of breach of confidentiality, fear of being stigmatised and a lack of trust towards health professional as the major psychosocial factors that serve as barriers to VCT participation. The cultural barriers to VCT pointed to hegemonic masculinity as a socially constructed gender identity that encourages gender inequalities and undermines efforts to improve HIV testing. The study suggested that strategies to increase VCT participation should consider leadership support of VCT programmes, incentivisation of VCT programmes, institutionalisation of HIV and AIDS education and the establishment of integrated wellness services for employees.
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- Date Issued: 2013