Predictors of women's exercise maintenance after cardiac rehabilitation

Innovative program to increase physical activity following an acute coronary syndrome: randomized controlled trial

OBJECTIVE

To evaluate the impact of a socio-cognitive intervention associated with a pedometer-based program on physical activity, cardiovascular risk factors and self-efficacy expectation during one year following an acute coronary syndrome.

METHODS

Sixty-five subjects were randomized during hospitalization in an experimental or a usual care group. Average steps/day was measured every 3 months until one year following discharge. Other dependent variables were measured at baseline, 6 and 12 months follow-up.

RESULTS

There were 32 patients in the experimental group and 33 patients in the usual care group. Group characteristics were comparable. At baseline, averages steps/day were similar between groups (5845±3246 vs. 6097±3055 steps/day; p=0.812). At 3-month follow-up, both groups increased their averages steps/day (p<0.05). This increase was higher in the experimental group (3388±844 vs. 1934±889 steps/day; p<0.001). At 12-month, interaction effects (group×time) in physical activity and waist circumference were different between groups (p<0.05), whereas self-efficacy expectation increased in both groups similarly (p<0.05).

CONCLUSION

The intervention is useful to improve average steps/day and waist circumference during the first year following an acute coronary syndrome.

PRACTICE IMPLICATIONS

This study supports development of the home-based cardiac rehabilitation program using socio-cognitive intervention associated with a pedometer after an acute coronary syndrome.

[The coronary patient six months after cardiac rehabilitation: rehabilitation evaluation research (RER study)]

AIMS OF THE STUDY

The aims of the study are to elaborate and test, in a coronary population admitted in a cardiac rehabilitation (CR) department, an evaluative method 6 months after a cardiac rehabilitation programme, with emphasis on modified cardiac risk factors.

PATIENTS AND METHODS

Every coronary patient admitted in the CR department in Machecoul between 2007 October and 2009 October, who's home were not over 50 km far away and without mental inability, were included. At the start of the programme, he was suggested to complete the training course by a phone interview at 3 months and a multidisciplinary consult at 6 months. It used dietary and physical activity questionnaires, and a 6-minute walk test (6mnWT).

RESULTS

Two hundred and two patients were included (mean age 63,4 ± 10 years, 93% men), 17% after an acute coronary syndrome, 23% after angioplasty and 75% after coronary artery bypass graft. The cardioprotective dietary score increased from 7.8 ± 4.3 to 12.7 ± 3 (on a scale from-17 to+19) and the physical activity score from 15.4 ± 7.7 to 19.5 ± 4.8 (on a scale from 5 to 40). The 6mnWT increased in CR (from 431 ± 90m to 511 ± 91m) and was maintained at 6 months (513 ± 88m). The European recommendation goals were achieved by 76% of patients for LDL (<1g/L), 64% for blood pressure (<140/90), 82% for a BMI less than 30 and 36% a BMI less than 25, 67% central obesity (<102cm by men and 88 cm by women) and 82% for no smoking. Four non-fatal cardiac events and seven vascular events were reported by a mean delay of 190 ± 30 days.

CONCLUSION

A six monthly evaluation of CR programme can be used in a cardiac rehabilitation department routinely activity.

Healthcare in the pocket: mapping the space of mobile-phone health interventions

Mobile phones are becoming an increasingly important platform for the delivery of health interventions. In recent years, researchers have used mobile phones as tools for encouraging physical activity and healthy diets, for symptom monitoring in asthma and heart disease, for sending patients reminders about upcoming appointments, for supporting smoking cessation, and for a range of other health problems. This paper provides an overview of this rapidly growing body of work. We describe the features of mobile phones that make them a particularly promising platform for health interventions, and we identify five basic intervention strategies that have been used in mobile-phone health applications across different health conditions. Finally, we outline the directions for future research that could increase our understanding of functional and design requirements for the development of highly effective mobile-phone health interventions.

Design of the Steps to Health Study of Physical Activity in Survivors of Endometrial Cancer: Testing a Social Cognitive Theory Model

Physical activity has been shown to benefit cancer survivors' physical functioning, emotional well-being, and symptoms. Physical activity may be of particular benefit to survivors of endometrial cancer because they are more likely to be obese and sedentary than the general population, as these are risk factors for the disease, and thus experience a number of related co-morbid health problems. However, there is little research systematically studying mechanisms of physical activity adherence in cancer survivor populations. This paper describes the design of the Steps to Health study, which applies a Social Cognitive Theory-based model of endometrial cancer survivors' adoption and maintenance of exercise in the context of an intervention to increase walking or other moderate intensity cardiovascular activity. In Steps to Health we will test the influence of self-efficacy and outcome expectations on adherence to exercise recommendations, as well as studying the determinants of self-efficacy. Endometrial cancer survivors who are at least 6 months post-treatment are provided with an intervention involving print materials and telephone counseling, and complete assessments of fitness, activity, self-efficacy and outcome expectations, and determinants of self-efficacy every two months for a six month period. In addition to testing an innovative model, the Steps to Health study employs multiple assessment methods, including ecological momentary assessment, implicit tests of cognitive variables, and ambulatory monitoring of physical activity. The study results can be used to develop more effective interventions for increasing physical activity in sedentary cancer survivors by taking into account the full complement of sources of self-efficacy information and outcome expectations.

Psychometric evaluation of the index of self-regulation

Index of Self-Regulation (ISR) is a nine-item scale designed primarily to measure individuals' level of self-regulation for physical activity. The aim of this study is to report psychometric characteristics of the ISR. The ISR scale was administered in a sample of 183 adult patients at 2 weeks following graduation from cardiac rehabilitation, 3 months following graduation, and 6 months following graduation. The internal consistency of the ISR was high at all three time points, with Cronbach's alphas of .81 to .96 across time points. The test-retest reliability was fairly high, with an overall coefficient of .73. There was evidence of concurrent validity of the ISR based on its moderately significant correlations with other theoretically relevant variables, including self-knowledge and motivational appraisal for physical activity. In conclusion, the ISR is a reliable and valid measure to assess the level of self-regulation in the maintenance of physical activity.

Promoting patient uptake and adherence in cardiac rehabilitation

BACKGROUND

Cardiac rehabilitation is an important component of recovery from coronary events but uptake and adherence to such programmes are below the recommended levels. This aim is to update a previous non-Cochrane systematic review which examined interventions that may potentially improve cardiac patient uptake and adherence in rehabilitation or its components and concluded that there is insufficient evidence to make specific recommendations.

OBJECTIVES

To determine the effects of interventions to increase patient uptake of, and adherence to, cardiac rehabilitation.

SEARCH STRATEGY

A previous systematic review identified studies published prior to June 2001. We searched the Cochrane Central Register of Controlled Trials (CENTRAL) in The Cochrane Library (Issue 4 2007), MEDLINE (2001 to January 2008), EMBASE (2001 to January 2008), CINAHL (2001 to January 2008), PsycINFO (2001 to January 2008), Web of Science: ISI Proceedings (2001 to April 2008), and NHS Centre for Reviews and Dissemination (CRD) databases (Health Technology Assessment (HTA) and Database of Abstracts of Reviews of Effects (DARE)) from 2001 to January 2008. Reference lists of identified systematic reviews and randomised control trials (RCTs) were also checked for additional studies.

SELECTION CRITERIA

Adults with myocardial infarction, coronary artery bypass graft, percutaneous transluminal coronary angioplasty, heart failure, angina, or coronary heart disease eligible for cardiac rehabilitation and randomised or quasi-randomised trials of interventions to increase uptake or adherence to cardiac rehabilitation or any of its component parts. Only studies reporting a measure of adherence were included.

DATA COLLECTION AND ANALYSIS

Titles and abstracts of all identified references were screened for eligibility by two reviewers independently and full papers of potentially relevant trials were obtained and checked. Included studies were assessed for risk of bias by two reviewers.

MAIN RESULTS

Ten studies were identified, three of interventions to improve uptake of cardiac rehabilitation and seven of interventions to increase adherence. Meta-analysis was not possible due to multiple sources of heterogeneity. All three interventions targeting uptake of cardiac rehabilitation were effective. Two of seven studies intended to increase adherence had a significant effect. Only one study reported the non-significant effects of the intervention on cardiovascular risk factors and no studies reported data on mortality, morbidities, costs or health care resource utilisation.

AUTHORS' CONCLUSIONS

There is some evidence to suggest that interventions to increase the uptake of cardiac rehabilitation can be effective. Few practice recommendations for increasing adherence to cardiac rehabilitation can be made at this time. Interventions targeting patient identified barriers may increase the likelihood of success. Further high quality research is needed.

Understanding physical activity facilitators and barriers during and following a supervised exercise programme in Type 2 diabetes: a qualitative study

AIMS

To assess barriers and facilitators of participation in a supervised exercise programme, and adherence to exercise after programme completion.

METHODS

Focus group discussions addressed factors which could facilitate attendance, current engagement in exercise, reasons for continuing or discontinuing regular exercise and ways to integrate exercise into daily life. Three focus groups, with a total of 16 participants, were led by a trained moderator; audiotapes were transcribed verbatim; transcripts were coded and themes were identified. Themes that recurred across all three focus groups were considered to have achieved saturation.

RESULTS

Motivation was the most critical factor in exercising both during and following the programme. Participants appreciated the monitoring, encouragement and accountability provided by programme staff. They voiced a need for better transition to post-programme realities of less support and supervision. Co-morbid conditions were apt to derail them from a regular exercise routine. They viewed the optimal programme as having even greater scheduling flexibility and being closer to them geographically. Post-programme, walking emerged as the most frequent form of physical activity.

CONCLUSIONS

Adults with Type 2 diabetes require long-term monitoring and support for physical activity and exercise.

Women's and men's exercise adherence after a cardiac event

The purpose of this secondary analysis was to determine whether age affects women's and men's exercise adherence after a cardiac event. In a convenience sample of 248 adults ages 38 to 86 who had a cardiac event, exercise adherence (three exercise sessions per week) was compared between men and women in three age groups (younger than 60, 61 to 70, and older than 70). Exercise patterns were recorded by heart rate monitors worn during exercise. No differences were found in adherence between the age groups for women; older men were nonadherent sooner than younger men when controlling for fitness level, pain, comorbidity, self-efficacy, depressed mood, and social support. Exercise adherence after a cardiac event was higher for younger men compared with older men. For all age groups, less than 37% of the total sample adhered to a three-times-per-week exercise regimen after 1 year, suggesting that interventions to maintain exercise adherence are needed.

Influence of an early recovery telehealth intervention on physical activity and functioning after coronary artery bypass surgery among older adults with high disease burden

OBJECTIVE

Older adults with poor functioning preoperatively are at risk for delayed recovery and more impaired outcomes after coronary artery bypass surgery (CABS). The study objective was to determine whether a 6-week early recovery telehealth intervention, designed to improve self-efficacy and management related to symptoms after CABS, was effective in improving outcomes (physical activity, physiologic, and psychologic functioning) for older adults (aged > 65 years) with higher disease burden.

METHODS

A descriptive, repeated-measures experimental design was used. Follow-up data were collected at 3 and 6 weeks and 3 months after CABS. Subjects were drawn from a larger randomized clinical trial. Parent study subjects who had high disease burden preoperatively (physical component score of < 50 on the Medical Outcome Study Short Form-36 and RISKO score of > 6) were included (N = 55), with 23 subjects in the early recovery intervention group and 31 subjects in the usual care group (n = 31). Subjects ranged in age from 65 to 85 years (M = 71.6 + 5.1 years).

RESULTS

There was a significant main effect by group (F[1,209] = 4.66, P < .05). The intervention group had a least square means of 27.9 kcal/kg/d of energy expenditure compared with the usual care group of 26.6 kcal/kg/d per the RT3 accelerometer (Stayhealthy, Inc, Monrovia, CA). Both groups had significantly improved physical (F[2,171] = 3.26, P < .05) and role-physical (F[2,171] = 6.64, P < .005) functioning over time.

CONCLUSION

The subgroup of subjects undergoing CABS with high disease burden were responsive to an early recovery telehealth intervention. Improving patients' physical activity and functioning can reduce morbidity and mortality associated with poor functioning after cardiac events.

Maintenance of effects of a home-based physical activity program among breast cancer survivors

PURPOSE

Although physical activity (PA) adoption improves fitness and psychological well-being among cancer survivors, PA maintenance has not been examined. This paper presents follow-up of a home-based PA program for women treated for early-stage breast cancer.

MATERIALS AND METHODS

Eighty-six sedentary women (mean age = 53.14 years, SD = 9.70) were randomly assigned to a PA or contact control group. The PA group received a 12-week telephone counseling program to adopt PA. Assessments were conducted at baseline, end-of-intervention (12 weeks), 6, and 9 months post-baseline.

RESULTS

When comparing change from end-of-intervention (12 weeks) between groups, a significant reduction was observed in minutes of PA at 6 months (t = -2.10, p < 0.05), but there was no decrease in intervention effect at 9 months (t = -0.19, p = 0.84). Similarly, post-intervention reductions in fatigue were lost at 6 months (t = 3.27, p < 0.01), but remained present at 9 months (t = 1.65, p = 0.10). PA group's fitness improvements were maintained at both follow-ups (t = 1.04, p = 0.30 and t = 0.05, p = 0.96). The previously significant intervention effect on vigor was maintained at 6 months (t = 1.32, p = 0.19) but was significantly reduced at 9 months (t = -2.15, p < 0.05). PA participants were more likely to progress in motivational readiness at 6 (OR = 5.95, 95% CI = 2.30, 15.36) and 9 months (OR = 4.09, 95% CI = 1.69, 9.87); however, group differences in meeting PA guidelines were not maintained.

CONCLUSION

Some positive effects of a home-based PA intervention for breast cancer patients were maintained at 6 and 9 months.

Self-efficacy for exercise in cardiac rehabilitation: review and recommendations

Despite the numerous physical and psychosocial benefits of exercise for coronary heart disease survivors, non-adherence to cardiac rehabilitation (CR) exercise is a major problem. Adherence to the lifestyle behavior change associated with CR involves both physical and self-regulatory skills. While self-regulatory efficacy is clearly linked to exercise adherence and adjustment, the literature on the relationship between self-efficacy and exercise among CR participants has not been systematically reviewed. A search of relevant databases identified 41 CR studies. Few studies measured self-regulatory efficacy for actions that facilitate adherence. Most studies examined self-efficacy during the intensive center-based phase of CR, with little attention to long-term maintenance. The CR literature could benefit by examining (a) self-efficacy as a major rehabilitation outcome, (b) measurement of self-regulatory efficacy for behavior change, (c) suspected moderators of self-efficacy (i.e. gender, age), and (d) self-efficacy relative to maintenance.

A prospective, controlled multisite study of psychosocial and behavioral change following women's cardiac rehabilitation participation

BACKGROUND

Despite its proven benefits and need, women are significantly less likely than men to participate in and complete cardiac rehabilitation (CR). Thus, there are few reports of CR outcomes among women, particularly when compared with women who do not participate in CR. The purpose of this study was to prospectively assess psychosocial and behavioral changes, comparing women who participated in CR with those who did not.

METHODS

One hundred fifty-seven female cardiac inpatients from three hospitals consented to participate in a prospective study, and 110 (79%) were retained 18 months postdischarge. A mailed survey discerned CR participation 9 months postdischarge. Quality of life (Short-Form Health Survey Physical and Mental Component Summary [SF-12 PCS and MCS]), exercise behavior (Health-Promoting Lifestyle Profile II [HPLPII]), Exercise Benefits and Barriers Scale (EBBS), and anxiety and depressive symptoms (Hospital Anxiety and Depression Scale [HADS]) were assessed in hospital and 18 months postdischarge.

RESULTS

Fifty-one (45.1%) women self-reported participating in CR at 1 of 18 sites, and site-verified participation was 82.43% +/- 29.97% of prescribed sessions. For CR participants, paired t tests assessing change from hospitalization to 18 months postdischarge revealed significant improvements in physical quality of life (p < 0.001), anxiety (p < 0.05), and exercise behavior (p = 0.01). Women who did not participate in CR experienced significant improvements in physical quality of life (p = 0.02), and depressive symptoms (p = 0.03) but not exercise behavior.

CONCLUSIONS

Following a cardiac event, female patients improved their physical quality of life and affect, but only patients who participated in CR increased their exercise behavior. Given the cardiac benefits of exercise and that women are often sedentary and given that this exercise behavior was sustained post-CR, these findings are significant. Randomized controlled trials of women's CR outcomes are needed.

Adverse baseline physiological and psychosocial profiles of women enrolled in a cardiac rehabilitation clinical trial

PURPOSE

Coronary heart disease (CHD) remains the leading cause of death in women. Despite positive outcomes associated with cardiac rehabilitation (CR), investigations of women are sparse. This article presents the baseline physiological and psychosocial profiles of 182 women in the Women's-Only Cardiac Rehabilitation study.

METHOD

Women were randomized to a women's-only motivational interviewing or traditional CR group. Physiological measures included lipid profiles, body mass index, functional capacity, and anthropomorphic measures. Psychosocial measures included optimism, hope, social support, anxiety, depression, quality of life, and health perceptions. The median age was used to split the sample to examine data on 92 younger (< or = 64 years) and 90 older (>64 years) women.

RESULTS

With a mean age of 63 years, 66.5% were white, 47% were retired, and 54% were married. Most women were physically inactive (83%), hypertensive (76%), and overweight (56%). Most women (71.4%) met the criteria for metabolic syndrome. Younger women demonstrated significantly worse psychosocial profiles than older women. More of the younger women (64%) had depressive symptoms than older women (37%). Younger women demonstrated a mean Center for Epidemiological Studies Depression Scale score of 20.8 +/- 12.4, whereas older women had a substantially lower mean score of 14.9 +/- 9.5 (P < .001). Younger participants also reported significantly more anxiety than older participants (38.8 +/- 13.4 vs 32.8 +/- 10.6, P < .001).

CONCLUSION

Younger women enrolled in a CR clinical trial had adverse baseline risk factor profiles placing them at high risk for disease progression.

Effects of an intervention on health behaviors of older coronary artery bypass (CAB) patients

Coronary artery bypass (CAB) patients are older increasingly more often than before. Effectiveness of cardiac rehabilitation among the elderly is not yet adequately known about. The purpose was to describe short-term (3-month), intermediate (6-month), and long-term (12-month) effects of health counseling, guidance, and adjustment education in groups on health, health behaviors, and functional abilities among older CAB patients. The study population was randomized to an intervention group (IG=49) and a control group (CG=68). Prior to CAB, intervention included one guidance and counseling group session and four sessions within 12 months following CAB. Intervention had positive effects on exercise activities, use of alcohol, and functional abilities among all participants, and on frequency of eating visible fat, fresh greens and vegetables among men. The intervention was effective with some exercise activities and functional abilities persisting for at least 1 year following CAB. Similar interventions may be arranged for older people. Health care professionals need to guide and encourage older people in their efforts to participate in them.

Adherence to a home-walking prescription in patients with chronic obstructive pulmonary disease

BACKGROUND

We know little about long-term exercise behavior and adherence in patients with chronic obstructive pulmonary disease (COPD).

PURPOSE

The study's purpose was (1) to describe exercise behavior and adherence to a home-walking exercise prescription over 12 months in a sample of patients with COPD; and (2) to validate categories of exercise adherence over time in this population.

DESIGN

This was a secondary analysis of a randomized controlled trial.

SUBJECTS

A total of 103 participants with COPD who were randomly assigned to one of three versions of a dyspnea self-management program participated.

MEASURES

The components of exercise frequency, duration, and intensity were measured by exercise/dyspnea daily logs, and participants were classified into categories on the basis of their pattern of exercise adherence over the year.

RESULTS

Participants walked an average of 3 days per week initially, with a decline to 2.5 days per week over the year. On average, participants walked longer than the prescribed duration of 20 minutes per session. Dyspnea intensity at the end of the walk tended to remain stable at a mean level of 4 over the year. Classification by adherence category distinguished differences in 6-minute walk distance, endurance treadmill test time, Short Form-36 physical function, and Short Form-36 mental health, with endurance treadmill test time and physical function improvements mirroring increases in exercise adherence, and mental health highest among occasional lapse and lowest among relapser and recycle categories.

CONCLUSIONS

This investigation provides a description of long-term exercise behavior and adherence in a sample of patients with COPD. The categories suggest that physical benefits are related to consistent adherence, whereas mental health improvements are related to regular exercise with some flexibility in the schedule. Future research should test interventions to improve exercise adherence in patients with COPD and identify characteristics of patients who are most likely and least likely to adhere over time.

A prospective examination of patterns and correlates of exercise maintenance in coronary artery disease patients

This longitudinal study examined exercise behavior patterns (i.e., maintainers, irregular, and inactive) in cardiac patients, and investigated the sociodemographic, clinical, psychosocial, and environmental correlates of exercise patterns. A total of 661 cardiac in-patients from three hospitals consented to participate (75% response rate) and were re-assessed 9 and 18 (81% retention) months post-discharge. Exercise patterns were assessed via the Health-Promoting Lifestyle Profile II subscale using a median split. Of 417 participants (mean age 63.1+/-10.2) with complete data, 42.2% were classified as Exercise Maintainers, 21.3% as Irregular Exercisers, and 26.1% as Inactive. Multinomial logistic regression revealed that Exercise Maintainers were more likely to be male, have exercised prior to their diagnosis, attend cardiac rehabilitation, perceive fewer exercise barriers, and were less likely to be current-smokers, past-smokers, or attribute the cause of their disease to their own behavior. Patients more likely to maintain exercise have positive perceptions and utilize cardiac rehabilitation.

Aquatic Exercise in Older Korean Women with Arthritis: Identifying Barriers to and Facilitators of Long-Term Adherence

The purpose of this study was to identify factors influencing long-term adherence to aquatic exercise in older women with arthritis. Participants (n = 72) completed an educational program on aquatic exercise and underwent follow up for 6 months. At follow-up, women who continued aquatic exercise (adherence group, n = 25) had significantly higher scores than women in the nonadherence group (n = 47) in exercise self-efficacy (p < 0.0001) and group cohesion based on social aspects (p = 0.009). Both groups reported experiencing similar barriers to exercise (rho = 0.78). The findings provide insights for the development of strategies to promote long-term adherence to this type of aquatic exercise. Specifically, the findings encourage the fostering of exercise self-efficacy and social group cohesion during participation in educational programs to increase long-term exercise adherence.

Predictors of health promotion behavior in women without prior history of coronary heart disease

The purpose of this study was to determine health promotion behavior (HPB) and the best predictors of HPB in women without prior history of coronary heart disease (CHD). The sample included 119 women aged between 35 and 60 years who had no prior CHD history. The women were asked to complete a self-administered survey regarding their demographic data, personal CHD risk factors, HPB, CHD knowledge, and perceived benefits and barriers to CHD risk factor modification. The women in this study did not practice HPB regularly and had low CHD knowledge levels, a high perception level of benefits, and a moderate level of perceived barriers to CHD risk modification. Backward multiple regression analysis demonstrated that smoking history, family history of CHD, CHD knowledge levels, and perceived barriers to CHD risk modification were the best predictors of HPB in women without CHD. Women with fewer perceived barriers to CHD risk modification, higher CHD knowledge levels, and no smoking history or family history of CHD were more likely to practice HPB.

Spouses' provision of health-related support and control to patients participating in cardiac rehabilitation

The authors examined spouses' provision of health-related support and control as predictors of health behavior and mental health among patients participating in cardiac rehabilitation (N = 94 couples). Cross-sectional analyses revealed that spouses' support was positively associated with patient health behavior. Prospective analyses of change over 6 months (N = 65 couples) revealed that spouses' support predicted increased patient mental health, whereas spouses' control predicted decreased patient health behavior and mental health. Findings suggest that spouses' efforts to facilitate patients' healthy lifestyle behaviors are associated with patients' health behavior and mental health, but not always as spouses might intend.

A Behavior Change Intervention for Women in Cardiac Rehabilitation

There is undeniable evidence for physical and psychosocial benefits of cardiac rehabilitation programs for individuals suffering from coronary heart disease. Yet, fewer women than men are referred to, begin, or complete cardiac rehabilitation programs. The numerous logistical, economic, and motivational barriers to healthy behavior change place women at risk for subsequent CHD events. To close this gender gap and improve outcomes, novel, efficacious, and individualized rehabilitative approaches for women with coronary heart disease are needed. The purpose of this article is to describe a theory-driven behavioral intervention designed exclusively for women with coronary heart disease. The 12-week intervention is being tested in a randomized controlled trial involving women referred to a cardiac rehabilitation program. The tenets of the Transtheoretical Model of behavior change and motivational interviewing guided the development and implementation of the stage-matched, individualized intervention to promote healthy behavior change for women with coronary heart disease. The ongoing trial will examine the efficacy of the intervention on physiological and psychosocial outcomes.

Effects of a CHANGE intervention to increase exercise maintenance following cardiac events

BACKGROUND

Despite participation in a cardiac rehabilitation program, there is a downward trajectory of exercise participation during the year following a cardiac event.

PURPOSE

The purpose of this study was to test the effectiveness of CHANGE (Change Habits by Applying New Goals and Experiences), a lifestyle modification program designed to increase exercise maintenance in the year following a cardiac rehabilitation program. The CHANGE intervention consists of 5 small-group cognitive-behavioral change counseling sessions in which participants are taught self-efficacy enhancement, problem-solving skills, and relapse prevention strategies to address exercise maintenance problems.

METHOD

Participants (N = 250) were randomly assigned to the CHANGE intervention (supplemental to usual care) or a usual-care-only group. Exercise was measured using portable wristwatch heart rate monitors worn during exercise for 1 year. Cox proportional hazards regression was used to determine differences in exercise over the study year between the study groups.

RESULTS

Participants in the usual-care group were 76% more likely than those in the CHANGE group to stop exercising during the year following a cardiac rehabilitation program (hazard ratio = 1.76, 95% confidence interval = 1.08-2.86, p = .02) when adjusting for the significant covariates race, gender, comorbidity, muscle and joint pain, and baseline motivation. Most participants, however, had less than recommended levels of exercise amount and intensity.

CONCLUSIONS

Counseling interventions that use contemporary behavior change strategies, such as the CHANGE intervention, can reduce the number of individuals who do not exercise following cardiac events.

Barriers to Coronary Heart Disease Risk Modification in Women without Prior History of Coronary Heart Disease

PURPOSE

To explore the extent to which women perceive barriers to coronary heart disease (CHD) risk modification and to determine if access to a nurse practitioner (NP) decreases perceived barriers to CHD risk modification.

DATA SOURCES

Surveys completed by 120 women between the ages of 35 and 60 years, with no known history of CHD. The barriers scale was used to examine women's perceived barriers to CHD risk modification.

CONCLUSIONS

Women with access to an NP had less perceived barriers to CHD risk modification.

IMPLICATIONS FOR PRACTICE

NPs are ideally suited to decrease the mortality and morbidity associated with CHD through education strategies and attention to individual barriers women face when attempting to incorporate CHD risk factor modification into their lifestyles.

Gender differences in recovery after coronary artery bypass graft surgery

This study examined the effect of gender on symptom evaluation, symptom response, and physical functioning following coronary artery bypass graft surgery. Symptom evaluation and symptom response were measured at baseline and 2, 4, and 6 weeks and 3 months following surgery, and physical functioning was measured at baseline, 6 weeks, and 3 months. The sample included 46 men and 19 women randomly assigned to the routine care group of a larger study examining symptom management intervention influence on recovery outcomes in elderly coronary artery bypass graft patients. No significant differences were found in symptom evaluation, symptom response, or physical functioning by gender over time. Women reported consistently higher symptom evaluation scores for shortness of breath, fatigue, depression, sleep disturbance, swelling, and anxiety and lower mean physical and vitality subscale scores than men at every time point. Gender-specific symptom management strategies should be developed and tested to address the differences in the reporting of symptoms by men and women.

Getting the most out of cardiac rehabilitation: a review of referral and adherence predictors

Comprehensive cardiac rehabilitation reduces mortality and morbidity but is utilised by only a fraction of eligible cardiac patients, with the participation rate of women being only about half that of men. This quantitative review assesses 32 studies meeting inclusion criteria, describing 16,804 patients, 5882 of whom were female. It was found that the main predictor of referral to a cardiac rehabilitation programme was the physician's endorsement of the effectiveness of such a programme. Patients were more likely to participate in rehabilitation programmes when they were actively referred, educated, married, possessed high self efficacy, and when the programmes were easily accessible. Patients were less likely to participate when they had to travel long distances to participate in a cardiac rehabilitation programme, or experienced guilt over family obligations. Women were less often referred and participated less often even after referral. In conclusion, many of the observed predictors, including those particular to women, are potentially modifiable with the help of health professionals.

Fatigue and physical activity in older women after myocardial infarction

BACKGROUND

Within 6 years of a myocardial infarction (MI) more women (35%) than men (18%) will have another MI. Participation in physical activity is one of the most effective methods to reduce cardiac risks; however, few older women participate. One of the most frequently reported barriers to physical activity is fatigue.

OBJECTIVES

The specific aims of this study were to (1) describe factors related to fatigue in older women after MI and (2) examine the relationship of fatigue to physical activity in older women after MI.

METHODS

This descriptive correlational study examined the effects of age, body mass index, comorbidities, sleep, beta-blocker medication, depression, and social support on fatigue and physical activity in women (N = 84), ages 65 to 88 years old, 6 to 12 months post-MI. All women had their height and weight measured and completed (1) a health form on comorbidities, physical activity, and medication history; (2) the Geriatric Depression Scale; (3) the Epworth Sleepiness Scale; (4) the Revised Piper Fatigue Scale; and (5) the Social Provisions Scale.

RESULTS

The majority (67%) of the women reported fatigue that they perceived as different from fatigue before their MI. Moderately strong correlations were noted among depression, sleep, and fatigue, and multivariate analysis indicated that depression and sleep significantly accounted for 32.7% of the variance in fatigue. Although only 61% of the women reported participating in physical activity for exercise, most were meeting minimal kilocalories per week for secondary prevention. Fatigue was not significantly associated with participation in physical activity.

CONCLUSION

Describing correlates to fatigue and older women's participation in physical activity after MI are important to develop interventions targeted at increasing women's participation in physical activity, thus decreasing their risk for recurrent MIs.

Gender, Ethnicity, and Cardiovascular Disease

Although the influence of gender and ethnicity on cardiovascular disease has been understudied, cardiovascular nurse researchers have contributed significantly to the existing body of knowledge. This article distinguishes between the constructs of "gender versus sex'' and "ethnicity versus race,'' acknowledging that the terms are often used interchangeably in research. A sampling of the substantial contributions of cardiovascular nurse researchers related to gender and ethnicity in the areas of symptoms of cardiovascular disease; risk factors and prevention; delay in seeking care, diagnosis, and treatment; recovery and outcomes; and cardiac rehabilitation is highlighted. Recommendations for future research include publishing research data by gender and ethnicity subgroups even though statistical comparisons may not be feasible, and increasing cardiovascular disease research in minority populations such as Asian Americans, Pacific Islanders, Native Americans, and Hispanics. Finally, we challenge cardiovascular nurse researchers to shift from the documentation of disparities toward designing and testing of interventions to eliminate health disparities.