An adequate interset rest period for strength recovery during a common isokinetic test.

Isokinetic testing is used in rehabilitation settings on a regular basis; yet, there is a lack of consistency in rest period usage among protocols. Furthermore, the allotment of rest periods has been arbitrary (e.g., 30, 60, 90 seconds or more). This investigation examines the work:rest ratio as an effective method of standardizing rest periods in isokinetic testing. The purpose of this study was to establish an adequate rest period that would allow reproducibility of strength during a common isokinetic strength test. Twenty-seven healthy college-aged men (age, 23 ± 3.8 years; body weight, 79.54 ± 11.09 kg) were tested on 5 separate occasions: 2 familiarization sessions and 3 experimental sessions. Each subject performed a knee extension/flexion isokinetic strength protocol (Cybex NORM; Lumex, Inc., Ronkonkoma, NY, USA) to determine peak torque by performing 5 maximal reciprocal repetitions at each ascending velocity of 60, 180, and 300°·s. Work:rest ratios of 1:3, 1:8, and 1:12 were counterbalanced between sets. A 3 × 3 repeated measures analysis of variance was used to analyze the data. A significance level of α ≤ 0.05 was used for all tests. There was no significant difference in either knee extension or knee flexion peak torque when comparing work:rest ratios. These findings suggest that a 1:3 work:rest ratio is sufficient during a common isokinetic strength test.

The effect of patient characteristics upon uptake of the influenza vaccination: a study comparing community-based older adults in two healthcare systems.

BACKGROUND: the uptake of influenza vaccination represents a simple marker of proactive care of older people. However, many still do not receive the vaccine. To understand this challenge better, we investigated the relationship between patient characteristics (demographic, physical and psychological health and health service use) and vaccination uptake in a sample of community-dwelling older people in two adjacent but differently structured healthcare systems (Northern Ireland (NI) and the Republic of Ireland (RoI)). METHODS: a total of 2,033 randomly selected community-dwelling older adults (65 years and older) were interviewed in their homes. RESULTS: rates of uptake were 78% in NI and 72% in RoI. The uptake was greater with older age (odds ratio (OR) 1.6, 95% confidence interval (CI) = 1.3-2.1, P < 0.0005), widowhood (OR = 1.5, 95% CI = 1.1-2.3, P = 0.02), living in NI (OR = 0.77, 95% CI = 0.6-0.9, P = 0.04), greater functional impairment (OR RoI 2.0, 95% CI = 0.8-3.5, P = 0.03), more frequent use of family doctor (OR RoI 0.5, 95% CI = 0.3-0.6, P = 0.0001; NI 0.6, 95% CI = 0.4-0.9, P = 0.01) and greater use of services such as chiropody (OR NI 0.6, 95% CI = 0.4-0.9, P = 0.01), meals-on-wheels (OR RoI 1.3, 95% CI = 0.4-2.2, P = 0.03), social work (OR RoI 1.2, 95% CI = 0.3-1.9, P = 0.05) and occupational therapy (OR RoI 1.3, 95% CI = 0.5-2.5, P = 0.02). CONCLUSION: the uptake rates in both healthcare systems exceeded targets. Higher rates of vaccination were found among older people, those who were married and those who made greater use of hospital and community services. Increased exposure to health services may enhance trust in health care leading to higher vaccination uptake.

Stroke awareness in the general population: knowledge of stroke risk factors and warning signs in older adults.

BACKGROUND: Stroke is a leading cause of death and functional impairment. While older people are particularly vulnerable to stroke, research suggests that they have the poorest awareness of stroke warning signs and risk factors. This study examined knowledge of stroke warning signs and risk factors among community-dwelling older adults. METHODS: Randomly selected community-dwelling older people (aged 65+) in Ireland (n = 2,033; 68% response rate). Participants completed home interviews. Questions assessed knowledge of stroke warning signs and risk factors, and personal risk factors for stroke. RESULTS: Of the overall sample, 6% had previously experienced a stroke or transient ischaemic attack. When asked to identify stroke risk factors from a provided list, less than half of the overall sample identified established risk factors (e.g., smoking, hypercholesterolaemia), hypertension being the only exception (identified by 74%). Similarly, less than half identified established warning signs (e.g., weakness, headache), with slurred speech (54%) as the exception. Overall, there were considerable gaps in awareness with poorest levels evident in those with primary level education only and in those living in Northern Ireland (compared with Republic of Ireland). CONCLUSION: Knowledge deficits in this study suggest that most of the common early symptoms or signs of stroke were recognized as such by less than half of the older adults surveyed. As such, many older adults may not recognise early symptoms of stroke in themselves or others. Thus, they may lose vital time in presenting for medical attention. Lack of public awareness about stroke warning signs and risk factors must be addressed as one important contribution to reducing mortality and morbidity from stroke.

Do consultation charges deter general practitioner use among older people? A natural experiment.

In the Republic of Ireland, approximately 30% of the population ('medical card patients') are entitled to free general practice services. Eligibility is determined primarily on the basis of an income means test. The remaining 70% of the population ('private patients') must pay the full cost of all general practitioner (GP) consultations. From July 2001, all those over 70 years of age are also entitled to a medical card, regardless of income. This change in the pricing of GP services in the Republic of Ireland in 2001 provides a natural experiment that allows for an examination of the influence of economic incentives on GP visiting behaviour. The purpose of this paper is to examine whether this change in pricing for GP care for those over 70 years of age in Ireland led to an increase in the utilisation of GP services among this group. Using data from two nationally representative surveys of the population over the age of 65 before and after the policy change, difference-in-difference two-step models of GP visiting behaviour are estimated. The results indicate that, while there is some limited evidence in favour of an increase in the probability of seeking GP care among those over 70 years of age after the policy change, there is no significant effect on the frequency of visits. Differences in the incentives facing both patients and GPs after the policy change can explain the latter result.

Older people--recipients but also providers of informal care: an analysis among community samples in the Republic of Ireland and Northern Ireland.

Data on both the provision and receipt of informal care among populations of older adults are limited. Patterns of both informal care provided and received by older adults in the Republic of Ireland (RoI) and Northern Ireland (NI) were evaluated. A cross-sectional community-based population survey was conducted. Randomly selected older people (aged 65+, n = 2033, mean age (standard deviation): 74.1 years (6.8), 43% men, 68% response rate) provided information on the provision and receipt of care, its location, and the person(s) who provided the care. Twelve per cent of the sample (251/2033) identified themselves as informal caregivers (8% RoI and 17% NI). Caregivers were more likely to be women, married, have less education and have less functional impairment. Forty-nine per cent (1033/2033, 49% RoI and 48% NI) reported receiving some form of care in the past year. Care recipients were more likely to be older, married, have more functional impairment, and poorer self-rated health. Receiving regular informal care (help at least once a week) from a non-resident relative was the most common form of help received [28% overall (578/2033); 27% RoI and 30% NI]. Five per cent (n = 102/2033) of the sample reported both providing and receiving informal care. Levels of informal care provided by community-dwelling older adults were notably higher than reported in single-item national census questions. The balance of formal and informal health and social care will become increasingly important as populations age. It is essential, therefore, to evaluate factors facilitating or impeding informal care delivery.

Vulnerable older people in the community: relationship between the Vulnerable Elders Survey and health service use.

OBJECTIVES: The Vulnerable Elders Survey (VES), a recently developed screening tool for at-risk older people in the community, has been validated in the United States. This study evaluated its profile in older Irish people. It assessed whether those categorized as vulnerable according to the VES were likely to use health services more frequently than others. DESIGN: Nationally representative cross-sectional interviews. SETTING: Private homes in the community. PARTICIPANTS: Randomly selected older people (aged > or = 65) (N=2,033; 68% response). MEASUREMENTS: Interviews included the 13-item VES and questions on health service use. RESULTS: The proportion scoring as vulnerable was identical to the U.S. sample (32.1% vs 32.3%). At the community healthcare level, participants categorized as vulnerable visited their primary care physician more frequently (mean visits 6.7 vs 4.0, P<.001), had more home-based public health nurse visits (29% vs 5%, P<.001), and were more likely to have had preventive influenza vaccinations (81% vs 72%, P<.001) in the previous year. More-vulnerable older adults did not differ on assessment of blood pressure (97% vs 96%), cholesterol (82% vs 85%), or receipt of smoking advice (66% vs 52%). Vulnerable participants were more likely to have used emergency department (17% vs 8%, P<.05), inpatient (21% vs 12%, P<.05), and outpatient (28% vs 21%, P<.05) hospital services. Fourteen percent of those categorized as vulnerable had zero or one visit to their family physician in the previous year. CONCLUSION: This study provides further evidence, from a different healthcare system, of the potential of the VES to differentiate more-vulnerable older people. Prospective studies are needed to assess use of the VES as a clinical decision aid for community professionals such as family physicians and public health nurses.

Cross-sectional validation of the Aging Perceptions Questionnaire: a multidimensional instrument for assessing self-perceptions of aging.

BACKGROUND: Self-perceptions of aging have been implicated as independent predictors of functional disability and mortality in older adults. In spite of this, research on self-perceptions of aging is limited. One reason for this is the absence of adequate measures. Specifically, there is a need to develop a measure that is theoretically-derived, has good psychometric properties, and is multidimensional in nature. The present research seeks to address this need by adopting the Self-Regulation Model as a framework and using it to develop a comprehensive, multi-dimensional instrument for assessing self-perceptions of aging. This study describes the validation of this newly-developed instrument, the Aging Perceptions Questionnaire (APQ). METHODS: Participants were 2,033 randomly selected community-dwelling older (+65 yrs) Irish adults who completed the APQ alongside measures of physical and psychological health. The APQ assesses self-perceptions of aging along eight distinct domains or subscales; seven of these examine views about own aging, these are: timeline chronic, timeline cyclical, consequences positive, consequences negative, control positive, control negative, and emotional representations; the eighth domain is the identity domain and this examines the experience of health-related changes. RESULTS: Mokken scale analysis showed that the majority of items within the views about aging subscales were strongly scalable. Confirmatory factor analysis also indicated that the model provided a good fit for the data. Overall, subscales had good internal reliabilities. Hierarchical linear regression was conducted to investigate the independent contribution of APQ subscales to physical and psychological health and in doing so determine the construct validity of the APQ. Results showed that self-perceptions of aging were independently related to physical and psychological health. Mediation testing also supported a role for self-perceptions of aging as partial mediators in the relationship between indices of physical functioning and physical and psychological health outcomes. CONCLUSION: Findings support the complex and multifaceted nature of the aging experience. The good internal reliability and construct validity of the subscales suggests that the APQ is a promising instrument that can enable a theoretically informed, multidimensional assessment of self-perceptions of aging. The potential role of self-perceptions of aging in facilitating physical and psychological health in later life is also highlighted.

Effects of telephone intervention on arthritis self-efficacy, depression, pain, and fatigue in older adults with arthritis.

PURPOSE: Arthritis self-efficacy (ASE) characterizes individuals' confidence in managing their arthritis. This study's purpose was to examine the effects of a telephone intervention on ASE, depression, pain, and fatigue in older adults with arthritis. METHODS: Eighty-five elders with arthritis were randomly assigned to the intervention or control group. Participants in both groups: (a) completed baseline assessments of ASE, depression, pain, and fatigue; (b) received written information on arthritis management; and (c) received individualized action plans for achieving their own arthritis management goal over the 6-week study. Participants in the intervention group received a telephone intervention including instruction on managing arthritis and encouragement to pursue their goal. In the sixth week the assessment tools were re-administered. Quantitative and qualitative data analysis methods were employed. RESULTS: Quantitative analyses showed a significant increase in ASE and a significant reduction in depression and pain over time for both groups. Qualitative analyses revealed several themes related to benefits of telephone intervention. CONCLUSION: Study results suggest that minimal intervention (ie, written information, goal-setting, and action plans) may produce positive changes in ASE, depression, and pain in some older adults with arthritis. Furthermore, telephone intervention may assist older patients in managing their arthritis.

Effect of obesity status on heart rate peak in female youth.

The purpose of this study was to compare heart rate peak in obese (n = 43) and normal weight (n = 45) female youth. Heart rate (HR) peak was significantly lower (p < or = 0.05) in the obese group as compared to the normal weight group (192.3 +/- 9.3, 203.4 +/- 7.6), and VO2 (L x min(-1)) peak similar between groups (1.77 +/- 0.53, 1.97 +/- 0.60). Bivariate correlations for heart rate peak with body weight, percent fat, and body mass index yielded the following: -0.53, -0.54, and -0.57. These findings agree with the adult data indicating low HR peak in obese individuals. Further research is needed to explore physiologic factors that may lead to reduced HR peak in obese female youth.