| 1. |
- Månsson, Linda, 1973-
(författare)
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Digital fall prevention for older adults : Feasibility of a self-managed exercise application and development of a smartphone self-test for balance and leg strength
- 2021
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- As the numbers of older adults grow, fall prevention is vital to reduce health care needs due to falls and to increase quality of life. Balance and strength exercises have been found to be effective in fall prevention, however, long-term adherence is often poor. The growth of digital technology in society has generated opportunities for fall prevention with eHealth. The aim of this thesis was to evaluate the feasibility and use of a new digital fall prevention exercise programme, and to develop and investigate a smartphone self-test application for balance and leg strength. Three different studies included community-dwelling older adults ≥ 70 years, who were able to rise from a chair and stand without support. A feasibility study evaluated a new digital exercise programme (DP) compared to a paper booklet exercise programme (PB) for self-managed fall prevention in a four-month controlled participant preference trial (n = 67) (Paper I & II). Self-reported data on adherence, falls efficacy, and functional ability were collected and analysed, along with performance-based measures of gait speed, balance, and chair stand test. In Paper II the feasibility was explored of using the self-reported scales and performance-based outcome measures. A self-test application was also developed (Paper III) in co-creation with 10 participants, who met during five sessions to design the application’s instructions and user interface. The participants’ preference for and their contribution to the application design was analysed with qualitative content analysis with a deductive-inductive approach. A concurrent validity study (n = 31) (Paper IV) assessed the correlations between variables from the self-test prototype and outcome measures from clinical instruments. Results from the feasibility study show that 43% chose the DP and 57% PB, and the attrition rate was 17% and 37% respectively. Both groups had similar adherence, but for the subgroup that exercised most, participants in the DP group reported significantly more exercise time (Paper I). Participants in both groups reported a boost in balance after the intervention, and in the DP group also improved leg strength. Significantly more participants continued to use the DP at 12 months. The self-managed exercise intervention (Paper II) resulted in improvements in functional leg strength, which positively correlated with exercise time, but no other performance-based outcomes showed any significant improvements. Performance-based measurements of balance as well as the self- reported balance confidence and fear of falling revealed ceiling effects. Pre-assessments of self-reported outcomes and performance-based measures showed significant but low correlations, no such correlations were seen in change scores. The deductive-inductive analysis of the co-creation process resulted in 17 subcategories within the seven facets of the Optimized Honeycomb model for iii user experience (Paper III). The main results were that participants desired clear and appropriate information to understand why things were done in a certain way, and their contributions enhanced the user experience of the self-test. The concurrent validity testing of the self-test prototype (IV) showed low to moderate correlations for the strength test but limited correlations for the balance test. In conclusion the DP group showed comparable adherence to the programme as the PB group, as well as to previous studies, indicating it was feasible to use the new DP. DP participants also reported better exercise maintenance after 12 months. Positive self-reported effects were expressed in addition to leg strength improvement. Outcome measures for balance and falls efficacy revealed ceiling effects, consequently, these instruments might not be suitable for assessments in all community-dwelling older adults. In particular, for balance related outcomes there is a need for new more sensitive measurements. The co-creation of the smartphone self-test was feasible and valuable for user experience, but further validity and reliability testing are needed before it can serve as an independent assessment tool.
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| 2. |
- Eriksson, Maria, 1976-
(författare)
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Creating customer value in commercial experiences
- 2009
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- There is a type of business offering gaining much attention, both in the media and in financial figures, which provides the customer with something extra, something to be remembered. This offering is a commercial experience. It is claimed that commercial experiences are different from traditional industry and mass-production and even separated from goods and services. The possibility of creating something extraordinary in order to gain profit is of increasing interest in today’s business world. Consumers are seeking for experiences to reach a higher level of personal growth, an experience that create personal identity and lead to long-lasting memories. This is something an increasing amount of consumers are willing to pay money for - the commercial experience market. The purpose of this thesis is to contribute knowledge about and a deeper understanding of commercial experiences, both in general and especially with regard to how customer value is created. The focus of the research was also to strengthen and support organizations that offer commercial experiences. In order to fulfill the purpose, two case studies were conducted with different focal points. The first aimed to find best practice and explore excellent ways of working when providing commercial experiences. The second study aimed to identify the needs for improvement to strengthen organizations offering commercial experiences. According to my findings, there seems to be several distinctions between commercial experiences and goods and services. These include; the level of price, the time spent by the customer, the customer affect as strongly emotional and maybe most importantly, the finding that commercial experiences create a higher level of customer value than goods and services. All this proves that the commercial experience is to be considered an offering on its own, a refined customer offer of higher value. Since commercial experiences are said to engage customers in an inherently memorable way, reaching a higher level of customer value than goods and services, is seen as a critical factor. Understanding what the customer really wants, needs and what builds customer value when offering commercial experiences then become particularly important as drivers of success. When studying a particular organization for best practice, several similarities between providing commercial experiences and working according to the core values of TQM were found and established as a factor of business excellence. Further when it comes to providing commercial experiences storytelling, theming and a creative environment stood out as additional factors of business excellence. Moreover, selecting the right co-workers based on their values rather than merely their skills and academic qualifications was seen as an important factor of success. The co-worker is often the co-creator of the experience together with the customer and therefore has an important part to play in the organization. Creating a corporate culture with co-workers sharing the values is seen as essential in order to run a successful business. It appears that any type of organization can provide an experience for the customer, the key is adding on the extra value to reach the level of attractive quality. The commercial experience is described as deeply affecting both the feelings and senses of the customer, resulting in new memories; it is a memorable event the customer is willing to pay for. The commercial experience contains elements of engagement, personal relevance, novelty, surprise and learning and is not limited to certain types of businesses. The fact that this is an area of increasing business interest but as yet a poorly explored one indicates that there is a need to develop improved ways of working, tools and methods, tailor-made for providing commercial experiences. Improved tools for identifying customer expectations and measuring customer satisfaction are clearly needed, especially since this is a growing industry that cannot be ignored. Welcome to further explore the experience economy where new memories are so highly valued that people are prepared to pay for them!
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| 3. |
- Lundell, Sara, 1982-
(författare)
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COPD in primary care : exploring conditions for implementation of evidence-based interventions and eHealth
- 2018
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Chronic obstructive pulmonary disease (COPD) is a major public health problem. Symptoms and comorbidities associated with COPD affect the whole body. Clinical guidelines for COPD recommend pulmonary rehabilitation (PR) including exercise training and education promoting self-management strategies. Despite the positive effects on health status, few people with COPD have access to PR. Electronic health (eHealth) has been seen as promising for increased access to evidence-based interventions. To increase the likelihood of a successful implementation, it is important to identity enablers and barriers that might affect implementation outcomes. The aim of this thesis is to explore the experiences, interactions and contexts of the management of COPD in primary care, as well as the design, experienced relevance, effect and expected usefulness of eHealth solutions.The thesis is based on four papers that have used qualitative, quantitative and mixed methods. Qualitative interviews (papers I, II, IV) and focus group discussions (paper IV) were analysed using qualitative content analysis (papers I, IV) and grounded theory (paper II). Quantitative data, collected using questionnaires (paper I) and in a systematic review (paper III) was analysed with descriptive statistics (paper I) and meta-analysis (paper III). The qualitative and quantitative findings in paper I and II were merged in a mixed methods design. Participants in the studies included healthcare professionals (papers I, IV), people with COPD (papers II, III, IV), their relatives (paper IV), senior managers representing primary care centres (paper I), and external researchers (paper IV).The findings in this thesis gave insight in the complex interactions within COPD management between the healthcare organisation (e.g. resources and priority), healthcare professionals (e.g. attitudes, collaboration and competence) and people with COPD (e.g. emotions, attitudes and coping). The healthcare organisation is fragmented with few resources and COPD care takes low priority. The healthcare professionals are Building COPD care on shaky ground (paper I), where the shaky ground is a presentation of the non-compliant organisation and other challenging circumstances. Driven, responsible and ambitious healthcare professionals wish to provide empowering COPD interventions through interprofessional collaboration, but are inhibited by their limited knowledge of and experience with COPD. People with COPD are (Re)acting in an ambiguous interaction with primary care providers (paper II), have limited knowledge and struggle with stigma, while they try to accept and manage their disease. The attitudes and support of healthcare professionals’ are essential for necessary interaction and self-management strategies. For people with COPD, this can take different paths: either enhancing confidence with empowering support or coping with disempowering stigma and threat.eHealth solutions such as telehealth, have been used to provide interventions to people with COPD through phone calls, websites or mobile phones, in combination with exercise training and/or education. They show a significant effect on physical activity level, but not on physical capacity and dyspnoea (paper III). Healthcare professionals, people with COPD and their relatives, and external researchers report that, to be useful and relevant in clinical practice, an eHealth tool should be reinforcing existing support structures (paper IV). Furthermore, it needs to fit in the current routines and contexts and create a sense of commitment in its users. According to the participants, information about selfmanagement strategies, such as how-to videos are valuable, and need to help them identify themselves with the people in the videos. The participants regard eHealth as providing knowledge and support for self-management.In conclusion, there is a need for implementation of clinical guidelines for COPD in primary care in order to improve both the management of COPD, as well as the interaction between healthcare professionals and people with COPD. Several actions are needed to facilitate this implementation. The priority and status of COPD management in primary care need to be raised. In addition, more resources (e.g. healthcare professionals) for COPD interventions is required to enhance the conditions for interprofessional collaboration and patient participation. Furthermore, it is important to include physiotherapists in COPD management, considering the focus on exercise training and physical activity. Healthcare professionals in primary care need further training and more time to educate and empower people who have COPD. The use of eHealth may lead to improvements in patient outcomes, although more research on web-based interventions is required. User involvement in the development process of an eHealth tool increases its usefulness and relevance in clinical practice and everyday life. The findings from this thesis may guide implementation processes in primary care, as well as the development of eHealth tools for people with COPD or other long-term conditions.
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| 4. |
- Pettersson, Beatrice, 1987-
(författare)
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Fall prevention exercise for older adults : self-management with support of digital technology
- 2021
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Background: Falls are a major public health issue, which can cause physical and psychological suffering for the individual as well as large costs for the society. To increase access and adherence to evidence-based fall prevention exercise, utilisation of older adults’ own capabilities and digital health offers promising solutions. The aim of this thesis was to explore a digital programme as support for self-management of fall preventive exercises in community-dwelling older adults with a focus on participant experiences, behaviour change, and intervention reach.Methods: This thesis comprises four papers, of which Papers I and II report from a feasibility study comparing two self-managed fall prevention exercise programmes, a paper booklet and the digital Safe Step programme. Papers III and IV describes a randomised controlled trial, which evaluates the effectiveness of the Safe Step programme in combination with educational videos, to reduce falls in comparison with educational videos alone. In Paper I, individual interviews were analysed with inductive qualitative content analysis to explore older adults’ experiences of self-managing their fall prevention exercise. In Paper II, a deductive and inductive approach was utilised for the analysis of comments in questionnaires, individual, and focus group interviews to explore experiences of self-determination when using the Safe Step programme. The classification system of motivational and behaviour change strategies based on Self-determination theory was utilised as a categorisation matrix. An additional analysis of behavioural regulation for exercise according to the Self-determination theory was performed in this thesis. Paper III is a protocol for a randomised controlled trial, and Paper IV describes the recruitment strategies, and reach of this trial through comparison with another representative sample of adults 70 years or older by descriptive statistics.Results: Results from Papers I and II show that the older adults appreciated the autonomy of a self-managed exercise programme. They expressed a capability to independently select exercises and manage their progression with support from the programme. However, some wanted the support of others in their training. The behaviour change support in the Safe Step programme was voiced as motivating and supportive, and the diversity of behaviour change strategies was emphasized as important to suit many older adults’ preferences. In Paper II, the behaviour change support were found supportive for the basic human psychological needs according to the Self-determination theory, although, support for autonomy and competence were more clearly stated than for relatedness. An additional category was formed and proposed as an amendment to the classification system used as an analytical matrix. In the thesis, expressions of intrinsic and extrinsic motivations for doing the exercise from participants in Paper I were triangulated with results from the Behavioural Regulations in Exercise Questionnaire-2. The results confirmed the trend found in the qualitative analysis of more intrinsically motivated expressions in the group using the Safe Step programme. A study protocol was written that described the design of the Safe Step randomised controlled trial, including the aims, methodology and overall organisation of the research (Paper III). In Paper IV, the most successful recruitment strategy to the randomised controlled trial was identified as advertisement in social media. The recruited participants were predominantly women, highly educated, and frequently used applications or internet on mobile devices.Conclusion: Finding of this thesis support implementation of fall prevention strategies through increased utilisation of older adults' self-management capabilities. Older adults’ experiences of exercising with a self-managed digital exercise program can be understood as managing pieces of a personal puzzle and was shaped more by the sum of the features and behaviour change support in the programme than by parts of the programme. The Safe step programme seems to provide support for more self-determined exercise motivation, than a paper booklet, which can support maintenance of the new exercise routines. The older adults’ experiences, as well as the characteristics of the participants reached, highlight the necessity for a variety of fall prevention strategies that reflect the diversified needs and preferences of older adults.
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| 5. |
- Wiklund, Maria, 1962-
(författare)
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Close to the edge : discursive, gendered and embodied stress in modern youth
- 2010
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Background Adolescent subjective health and mental problems have become a public health concern not only in Sweden but worldwide. The overall aim of this thesis is to deepen and widen the understanding of young peoples’ subjective health, psychosomatic and stress-related problems. A special focus is put on experienced stress among adolescent girls and young women. The study setting is one youth health centre, and three upper secondary schools in Umeå, a university town in northern Sweden. The research design combines qualitative and quantitative methods with the main focus on qualitative methods. An interdisciplinary theoretical synthesis is utilised, primarily based on bio-psycho-social, phenomenological, and social constructionist approaches. The three qualitative papers (I-III) are based on the same sample of 40 young women who had sought help at the youth health centre because of their stress-related problems. Paper I explores the stressors experienced by the young women, whereas Paper II explores the lived experiences of stress. Paper III examines the young women’s experiences of living in a violent partner relationship as young teenagers, and how this has affected their lives and health over time. Paper IV investigates perceived stress and subjective health complaints among older adolescents in upper secondary school. Methods Data was derived from: a) a qualitative interview study with 40 adolescent girls and young women, aged between 16–25 years, who had sought help at the youth health centre for stress problems. Qualitative content analysis was used in combination with discourse-orientated analysis (Paper I); a phenomenological approach (Paper II), and narrative method (Paper III); b) a school-based survey with a sample of 16–18-year-old boys and girls (n=1027), in upper secondary school, grades 1 and 2, from different educational programs at three schools. Perceived stress, self-rated health, subjective health complaints, anxiety, and depression, were measured with a questionnaire including a set of instruments. Statistical analyses were descriptive and analytical. Results Paper I identified multiple stressors of modernity, gender orders and youth. Contextual factors, including social constructions and practices of gender, played an important role for the stress experienced by these young women. The results revealed that multiple and intersecting stressors and demands connected to essential life spheres, contributed not only to experiences of distress but also to feelings of constraint. Moreover, the roles of excessive taking of responsibility and failing adult support were revealed. Paper II illuminated multidimensional lived and embodied experiences of distress. ‘Living close to the edge’ emerged as the common theme running through all of the interviews and captured the young women’s sometimes unbearable situations. The theme contains dimensions of physical, emotional, cognitive, social, and existential distress, as well as dimensions of distrust and disempowerment. Paper III examined two Swedish adolescent girls’ experiences of living in a violent relationship as teenagers, and how this has affected their lives and health over time. The analysis revealed violation, stress, trauma, coping, and agency during adolescence and the transition into adulthood. Paper IV showed a high level of perceived stress, and subjective health and stress complaints among boys and girls. High pressure and excessive demands from school were experienced by a majority of boys and girls. Perceived stress was correlated with subjective health and stress complaints and anxiety. There was a clear gender difference: two to three times as many girls than boys reported subjective health complaints, e.g. headaches, tiredness and sleeping difficulties, musculoskeletal pain, sadness and anxiety. Conclusion Several issues of relevance to public health were raised throughout the thesis. According to the interview results, the young women face multiple and intersecting stressors of modernity, gender orders and being young, which correspond to their multidimensional experiences of ‘living close to the edge’. Their experiences of stress are multidimensional, and include physical, emotional, cognitive, social and existential dimensions. Findings from the qualitative study were also mirrored in the findings from the larger group of adolescents in the school survey, where a high proportion of older adolescents, particularly girls, reported perceptions of stress. Moreover, perceived stress correlated to a variety of subjective health complaints and anxiety. The results can be understood and explained from a variety of perspectives. The experience of ‘managing alone’ indicated perceptions of inadequate social support. The overall results indicated a risk of more negative health development, particularly among adolescent girls and young women. Stressors of modernity, gender orders and youth were prominent. The continuation and normalisation of oppression and violence are also discussed as a severe gendered stressor in young women’s lives. This calls for a broad contextualised and gender-sensitive approach to young people’s stress and health problems. In conclusion, the age and gender gap in adolescent health needs to be further explored, and processes of distress, distrust and disempowerment have to be taken more seriously.
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| 6. |
- Abbaspour, Sara, 1984-
(författare)
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Proposing Combined Approaches to Remove ECG Artifacts from Surface EMG Signals
- 2015
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Licentiatavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Electromyography (EMG) is a tool routinely used for a variety of applications in a very large breadth of disciplines. However, this signal is inevitably contaminated by various artifacts originated from different sources. Electrical activity of heart muscles, electrocardiogram (ECG), is one of sources which affects the EMG signals due to the proximity of the collection sites to the heart and makes its analysis non-reliable. Different methods have been proposed to remove ECG artifacts from surface EMG signals; however, in spite of numerous attempts to eliminate or reduce this artifact, the problem of accurate and effective de-noising of EMG still remains a challenge. In this study common methods such as high pass filter (HPF), gating method, spike clipping, hybrid technique, template subtraction, independent component analysis (ICA), wavelet transform, wavelet-ICA, artificial neural network (ANN), and adaptive noise canceller (ANC) and adaptive neuro-fuzzy inference system (ANFIS) are used to remove ECG artifacts from surface EMG signals and their accuracy and effectiveness is investigated. HPF, gating method and spike clipping are fast; however they remove useful information from EMG signals. Hybrid technique and ANC are time consuming. Template subtraction requires predetermined QRS pattern. Using wavelet transform some artifacts remain in the original signal and part of the desired signal is removed. ICA requires multi-channel signals. Wavelet-ICA approach does not require multi-channel signals; however, it is user-dependent. ANN and ANFIS have good performance, but it is possible to improve their results by combining them with other techniques. For some applications of EMG signals such as rehabilitation, motion control and motion prediction, the quality of EMG signals is very important. Furthermore, the artifact removal methods need to be online and automatic. Hence, efficient methods such as ANN-wavelet, adaptive subtraction and automated wavelet-ICA are proposed to effectively eliminate ECG artifacts from surface EMG signals. To compare the results of the investigated methods and the proposed methods in this study, clean EMG signals from biceps and deltoid muscles and ECG artifacts from pectoralis major muscle are recorded from five healthy subjects to create 10 channels of contaminated EMG signals by adding the recorded ECG artifacts to the clean EMG signals. The artifact removal methods are also applied to the 10 channels of real contaminated EMG signals from pectoralis major muscle of the left side. Evaluation criteria such as signal to noise ratio, relative error, correlation coefficient, elapsed time and power spectrum density are used to evaluate the performance of the proposed methods. It is found that the performance of the proposed ANN-wavelet method is superior to the other methods with a signal to noise ratio, relative error and correlation coefficient of 15.53, 0.01 and 0.98 respectively.
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| 7. |
- Pettersson, Beatrice, et al.
(författare)
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Older adults’ experiences of behavior change support in a digital fall prevention exercise program : A qualitative study framed by the self-determination theory
- 2021
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Ingår i: Journal of Medical Internet Research. - : JMIR Publications. - 1438-8871. ; 23:7
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Tidskriftsartikel (refereegranskat)abstract
- Background: Exercise is an effective intervention to prevent falls in older adults; however, long-term adherence is often poor. To increase adherence, additional support for behavior change has been advocated. However, consistency in the reporting of interventions using behavior change techniques is lacking. Recently, a classification system has been developed to increase consistency in studies using behavior change techniques within the self-determination theory.Objective: This study aimed to explore expressions of self-determination among community-dwelling older adults using a self-managed digital fall prevention exercise program comprising behavior change support (the Safe Step program), which was developed in co-creation with intended users.Methods: The qualitative study design was based on open-ended responses to questionnaires, and individual and focus group interviews. A deductive qualitative content analysis was applied using the classification system of motivation and behavior change techniques as an analytical matrix, followed by an inductive analysis. Twenty-five participants took part in a feasibility study and exercised in their homes with the Safe Step program for 4 months. The exercise program was available on computers, smartphones, and tablets, and was fully self-managed.Results: In the deductive analysis, expressions of support were demonstrated for all three basic human psychological needs, namely, autonomy, competence, and relatedness. These expressions were related to 11 of the 21 motivation and behavior change techniques in the classification system. The inductive analysis indicated that autonomy (to be in control) was valued and enabled individual adaptations according to different rationales for realizing exercise goals. However, the experience of autonomy was also two-sided and depended on the participants’ competence in exercise and the use of technology. The clarity of the program and exercise videos was seen as key for support in performance and competent choices. Although augmented techniques for social support were requested, support through relatedness was found within the program.Conclusions: In this study, the Safe Step program supported the establishment of new exercise routines, as well as the three basic human psychological needs, with autonomy and competence being expressed as central in this context. Based on the participants’ experiences, a proposed addition to the classification system used as an analytical matrix has been presented.
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| 8. |
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