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"Aubry, Rachel"
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Examining the impact of a community-based exercise intervention on cardiorespiratory fitness, cardiovascular health, strength, flexibility and physical activity among adults living with HIV: A three-phased intervention study
by
Chan Carusone, Soo
,
O’Brien, Kelly K.
,
Ilic, Ivan
in
Acquired immune deficiency syndrome
,
Adult
,
Adults
2021
Our aim was to examine the impact of a community-based exercise (CBE) intervention on cardiorespiratory fitness, cardiovascular health, strength, flexibility, and physical activity outcomes among adults living with HIV.
We conducted a longitudinal intervention study with community-dwelling adults living with HIV in Toronto, Canada. We measured cardiopulmonary fitness (V̇O2peak (primary outcome), heart rate, blood pressure), strength (grip strength, vertical jump, back extension, push-ups, curl ups), flexibility (sit and reach test), and self-reported physical activity bimonthly across three phases. Phase 1 included baseline monitoring (8 months); Phase 2 included the CBE Intervention (6 months): participants were asked to exercise (aerobic, strength, balance and flexibility training) for 90 minutes, 3 times/week, with weekly supervised coaching at a community-based fitness centre; and Phase 3 included follow-up (8 months) where participants were expected to continue with thrice weekly exercise independently. We used segmented regression (adjusted for baseline age and sex) to assess the change in trend (slope) among phases. Our main estimates of effect were the estimated change in slope, relative to baseline values, over the 6 month CBE intervention.
Of the 108 participants who initiated Phase 1, 80 (74%) started and 67/80 (84%) completed the intervention and 52/67 (77%) completed the study. Most participants were males (87%), with median age of 51 years (interquartile range (IQR): 45, 59). Participants reported a median of 4 concurrent health conditions in addition to HIV (IQR: 2,7). Participants attended a median of 18/25 (72%) weekly supervised sessions. Change in V̇O2peak attributed to the six-month Phase 2 CBE intervention was 0.56 ml/kg/min (95% Confidence Interval (CI): -1.27, 2.39). Significant effects of the intervention were observed for systolic blood pressure (-5.18 mmHg; 95% CI: -9.66, -0.71), push-ups (2.30 additional push-ups; 95% CI: 0.69, 3.91), curl ups (2.89 additional curl ups; 95% CI: 0.61, 5.17), and sit and reach test (1.74 cm; 95% CI: 0.21, 3.28). More participants engaged in self-reported strength (p<0.001) and flexibility (p = 0.02) physical activity at the end of intervention. During Phase 3 follow-up, there was a significant reduction in trend of benefits observed during the intervention phase for systolic blood pressure (1.52 mmHg/month; 95% CI: 0.67, 2.37) and sit and reach test (-0.42 cm/month; 95% CI: -0.68, -0.16).
Adults living with HIV who engaged in this six-month CBE intervention demonstrated inconclusive results in relation to V̇O2peak, and potential improvements in other outcomes of cardiovascular health, strength, flexibility and self-reported physical activity. Future research should consider features tailored to promote uptake and sustained engagement in independent exercise among adults living with HIV.
NCT02794415. https://clinicaltrials.gov/ct2/show/record/NCT02794415.
Journal Article
Evaluation of the psychometric properties of the HIV Disability Questionnaire among adults living with HIV in the United Kingdom: A cross-sectional self-report measurement study
by
Boffito, Marta
,
O’Brien, Kelly K.
,
Nwokolo, Nneka
in
Acquired immune deficiency syndrome
,
Adult
,
Adults
2019
To evaluate the psychometric properties of the HIV Disability Questionnaire (HDQ) among people living with HIV (PLHIV) in London, United Kingdom (UK).
This is a cross-sectional measurement study. We recruited and administered the self-reported HDQ, seven criterion measures, and a demographic questionnaire with adults living with HIV accessing HIV care. We determined median and interquartile ranges (IQR) for disability presence, severity and episodic scores (range 0-100). We calculated Cronbach's alpha (α) Kuder-Richardson-20 (KR-20) statistics for disability and episodic scores respectively (internal consistency reliability), smallest detectable change (SDC) for each HDQ severity item and domain (precision), and tested 36 a priori hypotheses assessing correlations between HDQ and criterion scores (construct validity).
Of N = 243 participants, all were male, median age 40 years, 94% currently taking antiretroviral therapy, and 22% living with ≥2 concurrent health conditions. Median HDQ domain scores ranged from 0 (IQR: 0,7) (difficulties with day-to-day activities domain) to 27 (IQR: 14, 41) (uncertainty domain). Cronbach's alpha for the HDQ severity scale ranged from 0.85 (95% Confidence Interval (CI): 0.80-0.90) in the cognitive domain to 0.93 (95%CI: 0.91-0.94) in the mental-emotional domain. The KR-20 statistic for the HDQ episodic scale ranged from 0.74 (95%CI: 0.66-0.83) in the cognitive domain to 0.91 (95%CI: 0.89-0.94) in the uncertainty domain. SDC ranged from 7.3-15.0 points on the HDQ severity scale for difficulties with day-to-day activities and cognitive symptoms domains, respectively. The majority of the construct validity hypotheses (n = 30/36, 83%) were confirmed.
The HDQ possesses internal consistency reliability and construct validity with varied precision when administered to males living with HIV in London, UK. Clinicians and researchers may use the HDQ to measure the nature and extent of disability experienced by PLHIV in the UK, and to inform HIV service provision to address the health-related challenges among PLHIV.
Journal Article
Syndromic or non-syndromic congenital ichthyosis? A case report of two brothers with ichthyosis but microphthalmia and blindness in only one brother
2024
We present the cases of two brothers with ichthyosis, born to consanguineous parents, with the eldest having extracutaneous manifestations in the form of microphthalmia and corneal opacities causing complete blindness. Initially, we were faced with the question of whether the phenotype in this family was due to the effects of a single pleiotropic, presumably autosomal recessive gene manifesting as a syndromic form of ichthyosis, or whether there were multiple causal genes, and the ichthyosis was non-syndromic. Ultimately, clinical follow-up of the family, combined with research-based exome sequencing established a diagnosis of NIPAL4 autosomal recessive congenital ichthyosis in both brothers, but the ocular abnormalities causing blindness in the older brother were due to coexisting autosomal recessively inherited loss of function mutations in peroxidasin, the latter finding also seen in a sister unaffected by ichthyosis.
Journal Article
Assessing the sensibility and utility of a short-form version of the HIV Disability Questionnaire in clinical practice settings in Canada, Ireland and the USA: a mixed methods study
2022
ObjectivesThe Short-Form HIV Disability Questionnaire (SF-HDQ) was developed to measure the presence, severity and episodic nature of health challenges across six domains. Our aim was to assess the sensibility, utility and implementation of the SF-HDQ in clinical practice.DesignMixed methods study design involving semistructured interviews and questionnaire administration.ParticipantsWe recruited adults living with HIV and HIV clinicians in Canada, Ireland and the USA.MethodsWe electronically administered the SF-HDQ followed by a Sensibility Questionnaire (face and content validity, ease of usage, format) and conducted semistructured interviews to explore the utility and implementation of the SF-HDQ in clinical practice. The threshold for sensibility was a median score of >5/7 (adults living with HIV) and>4/7 (HIV clinicians) for ≥80% of items. Qualitative interview data were analysed using directed content analysis.ResultsMedian sensibility scores were >5 (adults living with HIV; n=29) and >4 (HIV clinicians; n=16) for 18/19 (95%) items. Interview data indicated that the SF-HDQ represents the health-related challenges of living with HIV and other concurrent health conditions; captures the daily episodic nature of HIV; and is easy to use. Clinical utility included measuring health challenges and change over time, guiding referral to specialists and services, setting goals, facilitating communication and fostering a multidisciplinary approach to care. Considerations for implementation included flexible, person-centred approaches to administration, and communicating scores based on personal preferences.ConclusionsThe SF-HDQ possesses sensibility and utility for use in clinical settings with adults living with HIV and HIV clinicians in three countries.
Journal Article
Disability and self-care living strategies among adults living with HIV during the COVID-19 pandemic
by
Chan Carusone, Soo
,
Hanna, Steven E.
,
Avery, Lisa
in
Canada
,
COVID-19 and HIV: clinical presentation
,
COVID-19 pandemic
2021
Background
Events associated with the COVID-19 pandemic, such as physical distancing, closure of community services, postponement of health appointments, and loss of employment can lead to social isolation, financial uncertainty, and interruption of antiretroviral adherence, resulting in additional health-related challenges (disability) experienced among adults living with chronic illness such as HIV. ‘Living strategies’ is a concept derived from the perspectives of people living with HIV, defined as behaviors, attitudes and beliefs adopted by people living with HIV to help deal with disability associated with HIV and multi-morbidity. Our aim was to describe disability among adults living with HIV and self-care living strategies used during the COVID-19 pandemic.
Methods
Adults living with HIV in Toronto, Ontario, Canada, including some with pre-pandemic HIV Disability Questionnaire (HDQ) data, completed a cross-sectional web-based survey between June–August 2020. The survey included the HDQ and questions about self-care living strategy use during the pandemic. We compared disability (HDQ) scores prior to versus during the pandemic using paired
t
-tests. We reported the proportion of participants who engaged in various living strategies at least ‘a few times a week’ or ‘everyday’ during the pandemic.
Results
Of the 63 respondents, 84% were men, median age 57 years, and 62% lived alone. During the pandemic the greatest disability severity was in the uncertainty [median 30; Interquartile range (IQR): 16, 43] and mental-emotional (25; IQR: 14, 41) domains. Among the 51 participants with pre-pandemic data, HDQ severity scores were significantly greater (worse) during the pandemic (vs prior) in all domains. Greatest change from prior to during the pandemic was in the mental-emotional domain for presence (17.7; p < 0.001), severity (11.4; p < 0.001), and episodic nature (9.3; p < 0.05) of disability. Most participants (> 60%) reported engaging a ‘few times a week’ or ‘everyday’ in self-care strategies associated with maintaining sense of control and adopting positive attitudes and beliefs.
Conclusions
People living with HIV reported high levels of uncertainty and mental-emotional health challenges during the pandemic. Disability increased across all HDQ dimensions, with the greatest worsening in the mental-emotional health domain. Results provide an understanding of disability and self-care strategy use during the COVID-19 pandemic.
Journal Article
Experiences of People Living With HIV in Community Based Exercise: A Qualitative Longitudinal Study
by
Aubry, Rachel
,
O’Brien, Kelly K.
,
Davis, Aileen M.
in
Exercise
,
Health education
,
Human immunodeficiency virus
2021
This qualitative longitudinal study examined the experiences of people living with HIV who engaged in a structured community-based exercise (CBE) program under the supervision of a fitness coach. Twenty people living with HIV were invited to participate in 3 semi-structured interviews over time. Participants engaged in exercise 3 times per week for 6 months with one weekly session supervised by a coach. Interviews were audio-recorded, transcribed verbatim and underwent longitudinal thematic analyses. Eleven participants were included representing a total of 30 interviews. Participants valued their experiences with the CBE program, particularly the motivation provided by the coach. Concerns about the environment, stigma and episodic health challenges affected their overall experience. To foster independence and promote self-management, health providers should consider these findings when encouraging CBE with people living with HIV. It is important to understand their goals and offer a variety of exercise options to meet their needs.
Journal Article
Reliability and Validity of the HIV Disability Questionnaire (HDQ) with Adults Living with HIV in the United States
by
Tran, Quang
,
Parrott, James Scott
,
O’Brien, Kelly Kathleen
in
Adults
,
Antiretroviral therapy
,
Cognition
2019
Objectives:
To assess measurement properties of the HIV Disability Questionnaire (HDQ) among adults with HIV in the United States.
Methods:
We administered the HDQ, World Health Organization Disability Assessment Schedule II (WHODAS 2.0), and a demographic questionnaire. For internal consistency reliability, we calculated Cronbach α and Kuder-Richardson-20 (KR-20) statistics for disability and episodic scores, respectively (≥0.80 acceptable). For test–retest reliability, we calculated intraclass correlation coefficients (>0.8 acceptable). For construct validity, we tested 15 a priori hypotheses assessing correlations between HDQ and WHODAS 2.0 scores.
Results:
Of the 128 participants, the majority were males (68%), median age 51 years, taking antiretroviral therapy (96%). Cronbach α ranged from 0.88 (social inclusion) to 0.93 (uncertainty). The KR-20 ranged from 0.86 (cognitive) to 0.96 (uncertainty). Intraclass correlation coefficients ranged from 0.88 (physical, cognitive, social inclusion) to 0.92 (mental–emotional). Of the 15 hypotheses, 13 (87%) were confirmed.
Conclusions:
The HDQ demonstrates internal consistency reliability, test–retest reliability, and construct validity when administered to a sample of adults with HIV in the United States.
Journal Article
A Qualitative Study of Fitness Coaches’ Experiences in Community Based Exercise with People Living with HIV
by
Aubry, Rachel
,
Chan Carusone, Soo
,
O’Brien, Kelly K.
in
Community
,
Exercise
,
Human immunodeficiency virus
2021
Fitness coaches need to understand the needs of people living with HIV engaged in community-based exercise (CBE) to be competent in developing exercises programs with this population. Our aim was to understand coaches’ experiences engaging in a CBE intervention with PLWH in an urban center in Canada. As part of a broader study, coaches supervised weekly hour-long individualized exercise sessions with PLWH over a six-month period. Using qualitative longitudinal methods, we interviewed coaches up to three times over six months. Transcribed interviews were analyzed cross-sectionally and longitudinally. Seven coaches participated in 15 interviews. Developing confidence, improving health and experiencing a sense of community were viewed as key benefits to PLWH by the coaches. Challenges included accommodating the episodic nature of HIV and ensuring they felt prepared to work with PLWH. Understanding the experiences of coaches engaged in CBE can assist in tailoring exercise programs to meet the needs of PLWH.
Journal Article
Examining the Utility of the HIV Disability Questionnaire (HDQ) in Clinical Practice: Perspectives of People Living with HIV and Healthcare Providers
by
Chan Carusone, Soo
,
Robinson, Gregory
,
O’Brien, Kelly K.
in
Clinical medicine
,
Connotation
,
Disability
2022
Our aim was to examine the utility of the HIV Disability Questionnaire (HDQ), a patient-reported outcome measure for use in clinical practice from the perspectives of people living with HIV (PLWH) and healthcare providers. We conducted a qualitative descriptive study. Fifteen PLWH and five healthcare providers participated in an interview, of which ten PLWH participated in a follow-up focus group discussion. The HDQ has value in clinical practice, including its role in assessing disability, facilitating communication, tailoring treatments, and guiding referrals. Strengths of the HDQ included its comprehensiveness, relevance of domains, and importance of specific items. Concerns related to length of the HDQ, the potential for some items to trigger emotional response, and negative connotations with the term ‘disability.’ Recommendations for HDQ implementation included the importance of score interpretability, shortening the questionnaire, and tailoring administration to the individual. Results suggest the HDQ possesses clinical utility with PLWH and healthcare providers.
Journal Article
The effect of creatine supplementation on the response of central and peripheral pulse wave velocity to high-intensity resistance exercise
by
Burr, Jamie F
,
Aubry, Rachel L
,
Whinton, Alanna K
in
Blood pressure
,
Cardiovascular disease
,
Creatine
2018
Following a bout of high-intensity resistance exercise, a transient increase in arterial stiffness, as measured through central pulse wave velocity has been shown to occur. Preliminary creatine supplementation research has demonstrated the potential for creatine to alter select measures of arterial stiffness. This study examines whether creatine supplementation independently influences the resistance exercise response of both central and peripheral pulse wave velocity. Forty healthy participants completed a high-intensity knee extension protocol demonstrated to cause increases in pulse wave velocity, both before and after 7 days of supplementing with creatine (n = 21) or placebo (n = 19) at 21 g/day. Resting and post-exercise measures of blood pressure, central (immediately and 20 min post) and peripheral (25 min post) pulse wave velocity were collected. No significant difference in the response of central pulse wave velocity was observed between creatine or placebo supplementation (p < 0.05) following high-intensity resistance exercise, as both groups revealed increases from pre-exercise to immediately post-exercise (p < 0.01). Similarly, no differences between groups were apparent for the peripheral pulse wave velocity response to exercise (p = 0.4). The current evidence does not support creatine supplementation as an effective intervention for reductions in arterial stiffness occurring with resistance exercise.
Journal Article