| 1. |
- Johansson, Anna-Maria, 1981-, et al.
(författare)
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Influence of visual feedback, hand dominance and sex on individuated finger movements
- 2021
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Ingår i: Experimental Brain Research. - : Springer. - 0014-4819 .- 1432-1106. ; 239:6, s. 1911-1928
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Tidskriftsartikel (refereegranskat)abstract
- The ability to perform individual finger movements, highly important in daily activities, involves visual monitoring and proprioception. We investigated the influence of vision on the spatial and temporal control of independent finger movements, for the dominant and non-dominant hand and in relation to sex. Twenty-six healthy middle-aged to old adults (M age = 61 years; range 46–79 years; females n = 13) participated. Participants performed cyclic flexion–extension movements at the metacarpophalangeal joint of one finger at a time while keeping the other fingers as still as possible. Movements were recorded using 3D optoelectronic motion technique (120 Hz). The movement trajectory distance; speed peaks (movement smoothness); Individuation Index (II; the degree a finger can move in isolation from the other fingers) and Stationarity Index (SI; how still a finger remains while the other fingers move) were extracted. The main findings were: (1) vision only improved the II and SI marginally; (2) longer trajectories were evident in the no-vision condition for the fingers of the dominant hand in the female group; (3) longer trajectories were specifically evident for the middle and ring fingers within the female group; (4) females had marginally higher II and SI compared with males; and (5) females had fewer speed peaks than males, particularly for the ring finger. Our results suggest that visual monitoring of finger movements marginally improves performance of our non-manipulative finger movement task. A consistent finding was that females showed greater independent finger control compared with males.
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| 2. |
- Austin, Thomas R., et al.
(författare)
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A plasma protein-based risk score to predict hip fractures
- 2024
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Ingår i: NATURE AGING. - 2662-8465.
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Tidskriftsartikel (refereegranskat)abstract
- As there are effective treatments to reduce hip fractures, identification of patients at high risk of hip fracture is important to inform efficient intervention strategies. To obtain a new tool for hip fracture prediction, we developed a protein-based risk score in the Cardiovascular Health Study using an aptamer-based proteomic platform. The proteomic risk score predicted incident hip fractures and improved hip fracture discrimination in two Tr & oslash;ndelag Health Study validation cohorts using the same aptamer-based platform. When transferred to an antibody-based proteomic platform in a UK Biobank validation cohort, the proteomic risk score was strongly associated with hip fractures (hazard ratio per s.d. increase, 1.64; 95% confidence interval 1.53-1.77). The proteomic risk score, but not available polygenic risk scores for fractures or bone mineral density, improved the C-index beyond the fracture risk assessment tool (FRAX), which integrates information from clinical risk factors (C-index, FRAX 0.735 versus FRAX + proteomic risk score 0.776). The developed proteomic risk score constitutes a new tool for stratifying patients according to hip fracture risk; however, its improvement in hip fracture discrimination is modest and its clinical utility beyond FRAX with information on femoral neck bone mineral density remains to be determined. The authors developed a proteomic risk score that improved the prediction of hip fractures in three validation cohorts analyzed by two different proteomic platforms. This risk score constitutes a new tool to stratify patients by hip fracture risk.
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| 3. |
- de Peppo, Giuseppe Maria, 1981, et al.
(författare)
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Osteogenic response of human mesenchymal stem cells to well-defined nanoscale topography in vitro
- 2014
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Ingår i: International journal of nanomedicine. - : Informa UK Limited. - 1176-9114 .- 1178-2013. ; 9:1, s. 2499-2515
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Tidskriftsartikel (refereegranskat)abstract
- Background: Patterning medical devices at the nanoscale level enables the manipulation of cell behavior and tissue regeneration, with topographic features recognized as playing a significant role in the osseointegration of implantable devices. Methods: In this study, we assessed the ability of titanium-coated hemisphere-like topographic nanostructures of different sizes (approximately 50, 100, and 200 nm) to influence the morphology, proliferation, and osteogenic differentiation of human mesenchymal stem cells (hMSCs). Results: We found that the proliferation and osteogenic differentiation of hMSCs was influenced by the size of the underlying structures, suggesting that size variations in topographic features at the nanoscale level, independently of chemistry, can be exploited to control hMSC behavior in a size-dependent fashion. Conclusion: Our studies demonstrate that colloidal lithography, in combination with coating technologies, can be exploited to investigate the cell response to well defined nanoscale topography and to develop next-generation surfaces that guide tissue regeneration and promote implant integration.
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| 4. |
- Ericson, Helena, 1980-, et al.
(författare)
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Health resources, ageing and physical activity : a study of physically active women aged 69–75 years
- 2018
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Ingår i: Qualitative Research in Sport, Exercise and Health. - : Routledge. - 2159-676X .- 2159-6778. ; 10:2, s. 206-222
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Tidskriftsartikel (refereegranskat)abstract
- Most studies on issues relating to ageing, physical activity and health are based on an understanding of what causes illness, rather than what promotes health. The health benefits of physical activity relate to questions about how to avoid physical inactivity and overcoming barriers to participating in physical activity, rather than why older people continue to be physically active. The aim of this study was to explore health resources in relation to physical activity, especially resistance training, that physically active women between the ages of 69–75 years characterise as important for the maintenance of health. In order to investigate these health resources, the study drew on salutogenic theory and the concept of sense of coherence. The analysed data came from interviews with 14 physically active Swedish women aged 69–75 years who had previously taken part in a resistance training intervention, but who also had continued to engage in physical activity and resistance training when the intervention ended. We identified seven health resources, social relations and care, positive energy, self-worth, capability in and about physical activity, the habit of exercising, identity as an exercising person and womanhood related to physical activity, in this case resistance training, that physically active women aged between 69 and 75 years characterised as important for maintaining their health. In conclusion, physical activity carried out in a stable group of peers provided a meaningful, comprehensible and manageable way for these older women to engage in the on-going process of maintaining health.
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| 5. |
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| 6. |
- Ericson, Helena, 1980-, et al.
(författare)
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Resistance training is linked to heightened positive motivational state and lower negative affect among healthy women aged 65–70
- 2018
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Ingår i: Journal of Women & Aging. - : Taylor & Francis. - 0895-2841 .- 1540-7322. ; 30:5, s. 366-381
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Tidskriftsartikel (refereegranskat)abstract
- Resistance training (RT) improves overall health, but the psychological effects of RT in healthy old adults have not been tested. The aim of this study was to investigate a sample of 65–70-year-old healthy and physically active women to assess their sense of coherence, health-related quality of life, hope, and affect, before and after taking part in a 24-week RT intervention (N = 14), compared to controls (N = 18). Findings showed a significant increase in hope (p = 0.013) and a significant decrease in negative affect (p = 0.002). Starting RT after age 65 does not appear to negatively impact on women’s psychological health but seems to be associated with important psychological health benefits.
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| 7. |
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| 8. |
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| 9. |
- Glantz, Helena, et al.
(författare)
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Effect of CPAP on diastolic function in coronary artery disease patients with nonsleepy obstructive sleep apnea : A randomized controlled trial.
- 2017
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Ingår i: International Journal of Cardiology. - : Elsevier BV. - 0167-5273 .- 1874-1754. ; 241, s. 12-18
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Obstructive sleep apnea (OSA) has been associated with worse diastolic function in patients with coronary artery disease (CAD). This analysis determined whether continuous positive airway pressure (CPAP) treatment would improve diastolic function in CAD patients with nonsleepy OSA.METHODS: Between December 2005 and November 2010, 244 revascularized CAD patients with nonsleepy OSA (apnea-hypopnea index (AHI) ≥15/h, Epworth Sleepiness Scale [ESS] score<10) were randomly assigned to CPAP or no-CPAP. Echocardiographic measurements were obtained at baseline, and after 3 and 12months.RESULTS: A total of 171 patients with preserved left ventricular ejection fraction (≥50%), no atrial fibrillation or severe valve abnormalities, and technically adequate echocardiograms at baseline and follow-up visits were included (CPAP, n=87; no-CPAP, n=84). In the intention-to-treat analysis, CPAP had no significant effect on echocardiographic parameters of mild (enlarged left atrium or decreased diastolic relaxation velocity) or worse (increased E/é filling index [presumed elevated left ventricular filling pressure]) diastolic function. Post-hoc analysis revealed a significant association between CPAP usage for ≥4h/night and an increase in diastolic relaxation velocity at 12months' follow-up (odds ratio 2.3, 95% confidence interval 1.0-4.9; p=0.039) after adjustment for age, sex, body mass index, and left atrium diameter at baseline.CONCLUSIONS: CPAP did not improve diastolic dysfunction in CAD patients with nonsleepy OSA. However, good CPAP adherence was significantly associated with an increase in diastolic relaxation velocity after one year.
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| 10. |
- Glantz, Helena, et al.
(författare)
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Obstructive sleep apnea is independently associated with worse diastolic function in coronary artery disease
- 2015
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Ingår i: Sleep Medicine. - : Elsevier BV. - 1389-9457. ; 16:1, s. 160-167
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Tidskriftsartikel (refereegranskat)abstract
- Background: Diastolic dysfunction is common in patients with coronary artery disease (CAD). We hypothesize that patients with CAD and preserved left ventricular ejection fraction (LVEF) and obstructive sleep apnea (OSA) will have worse diastolic function than similar patients without OSA. Material and methods: We analyzed sleep-study recordings and echocardiographic measurements obtained at baseline in a randomized controlled trial (RICCADSA) of revascularized patients with CAD who had LVEF of at least 50%. OSA was defined as an apnea-hypopnea-index (AHI) >= 15 events/h, and, no OSA, as an AHI <5. Worse diastolic function was defined as assumed elevated left ventricular filling pressure based on peak flow velocity in early diastole/Tissue Doppler of early diastolic ventricular filling (E/e) of >13 (or >9 in patients with an enlarged left atrial diameter [>= 39 mm for women and >= 40 mm for men]). Results: Data from 431 patients were evaluated (mean age: 63.7 +/- 8.8 y; men: 82.5%; OSA: n = 331). Worse diastolic function was more common among the patients with OSA than those without (54.4% vs 41.0%, p = 0.019). In multivariate analysis, OSA was associated with worse diastolic function (odds ratio [OR] 1.90, 95% confidence interval [CI] 1.13; 3.18) adjusted for female sex (OR 2.28, 95% CI 1.28; 4.07), hypertension (OR 1.84, 95% CI 1.20; 2.82), and diabetes mellitus (OR 2.45, 95% CI 1.42; 4.23). Age >= 60 years, obesity, and current smoking were nonsignificant. Conclusions: In this cohort with CAD and preserved LVEF, OSA was associated with worse diastolic function independent of the traditionally recognized risk indicators. (C) 2014 Elsevier B.V. All rights reserved.
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| 11. |
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| 12. |
- Johansson, Helena, 1980-
(författare)
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A life in the shadow of COPD : Symptom burden, caregiver burden and strategies to manage daily life
- 2024
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- Chronic obstructive pulmonary disease (COPD) is an irreversible obstructive lung disease. In Sweden, 400,000 to 700,000 individuals are affected by this disease, and it is the third most common diagnosis. Among those with COPD, approximately 3% are at Global Initiative for Chronic Obstructive Lung Disease (GOLD) stages III and IV, representing severe disease. Persons affected by COPD have symptoms such as breathing problems, cough, and increased mucus production. The persons affected by COPD and the next of kin have an affected life. The affected person need support from the next of kin and from society.This thesis aimed to identify, describe, and deepen the knowledge around the symptom burden in persons affected by COPD, the caregiver burden of their next of kin, and the need for support.In the work described in this thesis, qualitative interviews were performed with 25 persons affected by COPD in GOLD stages III and IV and 22 of their next of kin. The interviews were analysed using thematic analysis, according to Braun and Clarke. Quantitative data were also collected from 112 affected persons and 71 of their next of kin, which comprised background data, symptom burden scored with Revised Memorial Symptom Assessment Scale (RMSAS), caregiver burden scored with Caregiver Reaction Assessment (CRA), sense of coherence scored with Sense Of Coherence 13 item (SOC13) and support scored with Social Support Questionnaire six items (SSQ6). These quantitative variables were analysed using frequencies, means and independent t-tests. The total data corpus was then compared and contrasted, examining similarities and differences using Teddlie and Tashakkori’s mixed method. Finally, an integrative review of 68 studies was performed, which identified and summarised the support given to persons affected by COPD and their next of kin. Also, the effects of the support given were also identified and summarised.The results showed that those persons affected by COPD have a symptom burden in the form of an altered everyday life. The next of kin experience a caregiver burden in the form of changed roles, putting life on hold, and standing aside. Taken together, the findings show that the person affected by COPD and the next of kin rate the burden in one way but express it slightly differently in their own words. The affected persons and their next of kin need support to handle everyday life. In Sweden, most support is currently in the form of giving information, promoting physical activity, and providing medical treatment, but these do not always have the desired effects.In conclusion, persons affected by COPD and their next of kin wish to have person-centred support, involving face-to-face consultations in the clinic or at home, to minimise the burdens that they face.
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| 13. |
- Johansson, Helena, 1980-, et al.
(författare)
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Chronic obstructive pulmonary diseasés impact on the affected person and next of kin : A mixed methods study
- 2024
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Ingår i: Chronic Illness. - : Sage Publications. - 1742-3953 .- 1745-9206. ; 20:2, s. 296-308
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: Severe chronic obstructive pulmonary disease affects and changes the lives of both affected persons and next of kin. There is a need for support and a sense of coherence to manage the life situation and minimize the symptom and caregiver burden. The aim of this study was to diverge or converge views of symptom burden, caregiver burden, the need for support, and sense of coherence in persons with chronic obstructive pulmonary disease and their next of kin to gain a deeper and broader knowledge and understanding.METHODS: A mixed methods study with data from interviews and four validated questionnaires from persons affected by chronic obstructive pulmonary disease in GOLD stages III and IV and their next of kin.RESULTS: Questionnaires from 112 persons affected by chronic obstructive pulmonary disease, and 71 next of kin, together with 25 and 21 interviews, show that; there is a difference between estimated symptoms and caregiver burden and experiences expressed in their own words. There is also a defect regarding meaningfulness, comprehensibility, and manageability affecting daily life. Symptoms and caregiver burden, together with the sense of coherence, strengthen the need for support.DISCUSSION: The complexity of the life situation leads to a need for supportive interventions to strengthen internal and external resources.
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| 14. |
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| 15. |
- Johansson, Helena, 1980-, et al.
(författare)
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The experience of caregiver burden when being next of kin to a person with severe chronic obstructive pulmonary disease : A qualitative study
- 2023
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Ingår i: Chronic Respiratory Disease. - : Sage Publications. - 1479-9723 .- 1479-9731. ; 20
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Chronic obstructive pulmonary disease (COPD) is an inflammatory and irreversible lung disease. For next of kin caregiver burden can be a consequence of the situation of being close to a person affected by a chronic disease and in need of help. When there is an imbalance between stressors and resources to cope with the situation, caregiver burden emerges. Knowledge is sparse about how the caregiver burden is experienced by the next of kin. Therefore, the aim of this study is to identify and describe the caregiver burden experienced by next of kin of persons with severe COPD.METHOD: Qualitative interviews with 21 next of kin were conducted. Thematic analysis was used in accordance with the six steps of Braun and Clarke.RESULTS: The next of kin experience caregiver burden as 1) changed roles in daily life 2) putting life on hold 3) to stand aside. The next of kin are in need of support to manage daily life.CONCLUSIONS: The caregiver burden affect the next of kin physically and emotionally. To prevent advance consequences, person-centered care can be used to support the next of kin in the situation.
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| 16. |
- Johansson, Helena, 1980-, et al.
(författare)
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To live a life with COPD - the consequences of symptom burden
- 2019
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Ingår i: International Journal of COPD. - Auckland, New Zealand : Dovepress. - 1176-9106 .- 1178-2005. ; 14, s. 905-909-
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Tidskriftsartikel (refereegranskat)abstract
- Background: Chronic obstructive pulmonary disease (COPD) is a prevalent disease as with its symptom and treatment gives a burden for the affected person, family, health care and finances. Today the knowledge and understanding are sparse regarding COPD affected person´s own lived experiences about the symptom burden and its effect on their daily life. Due to this knowledge gap the aim of this study was to identify and describe the symptom burden and its effect on daily life in people with COPD based on their own lived experiences.Subject and Method: Eleven males and fourteen females in GOLD stage III and IV within an age of 58-82 years were interviewed. An interview guide guided the face-to-face interviews. Data was analyzed with Thematic Analysis following the six steps according to Braun and Clarke.Results: The result show one theme; An altered everyday life. The altered everyday life lead to a need of support to handle the everyday life and different strategies to live as desired. Persons with COPD need to take the day as it comes dependent on the status of the day. The life is not easy to plan, and the day must be taken as it comes. The life is handled with strategies in breathing techniques, take care of the home and garden as well as the emotions. Support from the next of kin, society and the health care is important.Conclusion: This study provides insight in that persons with COPD in stage III and IV have an altered life caused by the symptom burden. They must struggle with strategies to handle everyday life. There is a need of support from next of kin and society to facilitate life, but this support needs to be well-balanced.
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