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Persons living with HIV (PLWH) have an augmented risk of cardiovascular disease, including atherosclerosis and myocardial dysfunction, despite effective viral suppression with antiretroviral therapy. Despite the majority of PLWH residing in sub-Saharan Africa, there are limited reports from the region on structural cardiovascular changes due to this residual risk.
The Early Structural Cardiovascular Disease, HIV, and Tuberculosis in East Africa (ASANTE) cross-sectional study will be conducted in a public hospital in Nairobi, Kenya. It will enrol 400 participants (50% women, 50% PLWH) to undergo cardiovascular phenotyping using multimodal imaging (coronary CT angiography (CCTA) and echocardiography) and banking of biological samples (whole blood, peripheral blood mononuclear cells, plasma and urine). We will define the prevalence of subclinical coronary atherosclerosis by CCTA and subclinical myocardial dysfunction by transthoracic echocardiography and evaluate both traditional and non-traditional risk factors, including endemic infections such as latent tuberculosis. This study will contribute important data on phenotypes of and risk factors for HIV-associated cardiovascular disease in this understudied region.
Ethical approval for the ASANTE study was granted by the University of Nairobi-Kenyatta National Hospital Ethical Review Committee, Nairobi, Kenya, and the University of Washington Institutional Review Board, USA. Results will be submitted for publication in peer-reviewed journals.
Unsupervised exercise is beneficial for pregnant women, and ongoing exercise may affect the course of pregnancy. Therefore, promoting continued exercise among women is critical.
To implement a home-based exercise program, guided by the COM-B model theory, and assess its effects on depression, sleep quality, and sense of control among pregnant women.
Pregnant women (N = 100) were selected and randomly assigned in a 1:1 ratio to either the intervention or the control group. Both groups received exercise instruction. The intervention group received an additional intervention based on the COM-B model theory. Depression and sleep quality were evaluated at 28 and 35 weeks of gestation, while women's sense of control was assessed at 35 weeks of gestation.
In total, 91 participants completed the study, with 100 included in the intention-to-treat analysis. The intervention group showed improvement in depression at 28 and 35 weeks of gestation and in sleep quality at 35 weeks. Although there was no significant difference in the sense of control between the groups, the intervention group demonstrated better emotional control.
A theory-guided exercise intervention shows benefits in improving third-trimester depression, sleep quality, and emotional control. Therefore, exercise programs during pregnancy should consider to encompass capacities, opportunities, and motivations to encourage exercise behavior.
Pregnant women may experience physical and emotional distress. Exercise is recommended for healthy pregnant women and is beneficial for their mental and physical health. Unsupervised home-based exercise is cost-effective for pregnant women as an occasional solution for their discomfort. However, no synthesis of randomized trials on this topic has been conducted.
The aim of this study was to evaluate the effectiveness of unsupervised home-based exercise during pregnancy.
A systematic search for randomized controlled trials was performed in electronic databases. The review extracted eligibility criteria based on unsupervised home-based exercise intervention. The quality of the included studies was performed using the Cochrane Risk of Bias Tool 2.0. This review was registered a priori in PROSPERO (CRD42023452966).
In total, seven studies were selected for systematic review. Participant adherence rates for the three reported studies varied considerably, ranging from 33% to 75%. Two studies revealed that unsupervised home-based exercise improved symptom severity in relation to long-term adherence to exercise. Two studies suggested that maternal aerobic fitness increased due to exercise. One study revealed improved sleep quality. However, none of the studies supported the positive effects of exercise on fatigue, maternal insulin sensitivity, prenatal weight gain, postnatal weight loss, birth pain, and cesarean section.
Unsupervised home-based exercise improves discomfort symptoms during pregnancy but requires a long intervention period. This finding suggests that the evaluation period needs to be longer to identify the effects of exercise. In addition, a theoretical-based integrity exercise plan should be considered to promote the effectiveness of unsupervised home-based exercise.
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