Biomedical subjects

N S Redeker

Publications and source records attributed to N S Redeker.

23 records · Page 2Linked to original sources

PubMedDate not supplied

Women's patterns of activity over 6 months after coronary artery bypass surgery.

OBJECTIVE: To examine the relationships between objectively measured activity patterns over 6 months after coronary artery bypass surgery (CABS) and their relationship to self-reported functional recovery at 6 weeks and 6 months after CABS. DESIGN: Time series, descriptive-correlational, convenience sample. SETTING: Hospital and home environment. PATIENTS: Thirteen women who had undergone CABS. The mean age was 62 years (SD 10.76, range, 43 to 78). The mean preoperative New York Heart Association Functional Classification was 2.08 (SD 1.26, range, 1 to 4). MEASURES: Wrist-worn accelerometers and the Sickness Impact Profile (SIP). INTERVENTION: Women wore the accelerometers for 4 week-long intervals: the first postoperative week (T1), the first week after hospitalization (T2), the sixth postoperative week (T3), and the first week of the sixth postoperative month (T4). The SIP was administered at the end of each week of data collection. RESULTS: Circadian rhythms and linear trends in activity were examined with spectral, cosinor, and least squares regression analyses. Repeated measures ANOVA over T1 through T4 demonstrated statistically significant increases in the strength of the circadian rhythms and means levels of activity over T1 to T4. There were no statistically significant relationships between activity parameters at T1, T3, or T4 and SIP scores at T3 or T4. CONCLUSIONS: This study is the first to report changes in circadian rhythms and levels of objectively measured activity over 6 months after CABS. The findings suggest that women's levels of activity and the strength of the circadian rhythm of activity increase between the early postoperative period and the sixth postoperative month. More research is needed to further explore the trajectory of activity patterns after CABS, their relationships to recovery and to determine the need for and effectiveness of interventions designed to promote recovery through activity patterning.

Activities of Daily Living↗

PubMedDate not supplied

Effects of age on activity patterns after coronary artery bypass surgery.

OBJECTIVE: To examine the effect of age on activity patterns, including circadian rhythms and levels, after coronary artery bypass surgery (CABS). DESIGN: Repeated measures, correlational. SETTING: Northeastern university-affiliated tertiary coronary care center. SUBJECTS: Eight middle-aged (mean age = 57 years) and 14 older (mean age = 72 years) adults who had undergone first, isolated CABS. OUTCOME MEASURES: Wrist actigraph measures of levels (daytime activity) and circadian patterns of activity (acrophase, amplitude, percent rhythm, mesor), self-reported postoperative clinical activity milestones, and Sickness Impact Profile subscales of ambulation dysfunction and sleep-rest. INTERVENTION: Measurement of activity over postoperative days 2 through 5, including wrist actigraphy, Sickness Impact Profile ambulation and sleep-rest subscales, and daily clinical activity milestones. RESULTS: Repeated measures ANOVA was used in the data analysis. Statistically significant increases were found in percent rhythm (P <.001), amplitude (P <.001), activity level (P <.001), and clinical activity milestones (P <.001) over postoperative days 2 through 5. Significant effects of age were found on amplitude (P =.02) and percent rhythm (P =.008). Significant age-by-time effects were found for circadian amplitude (P =.03) and percent rhythm (P =.02). There was a nonstatistically significant (P =.07) age by time interaction effect on daytime activity. Trends in amplitude, percent rhythm, and daytime activity indicated that these activity parameters increased more slowly in older adults, compared with middle-aged adults, after initially similar levels on postoperative days 2 and 3. CONCLUSION: Both middle-aged and older adults increase daily activity and the strength of circadian activity pattern over days 2 through 5. However, these variables increase more rapidly in middle-aged adults after essentially identical levels on postoperative days 2 and 3.

Activities of Daily Living↗

PubMedDate not supplied

A framework of trauma and trauma recidivism in adolescents and young adults.

Trauma resulting from violence and unintentional causes has reached epidemic proportions in the United States, particularly among urban adolescents and young adults. Many of these injuries can be predicted because of participation of adolescents and young adults in risky behaviors. In addition, subsequent injuries to survivors can be predicted because of their return to risk taking behavior. This paper presents a model that addresses risk-taking behaviors, antecedents to risk taking, and the possible outcomes, including trauma and trauma recidivism. It focuses attention on the growing problem of trauma and trauma recidivism among adolescents and young adults and identifies implications for research and practice for trauma nurses.

Adolescent↗

PubMedDate not supplied

Health beliefs, health locus of control, and the frequency of practice of breast self-examination in women.

The relationship of health beliefs, health locus of control, and the frequency of practice of breast self-examination in women was explored through use of a survey. Health beliefs alone and health beliefs combined with internal health locus of control were found to predict the frequency of practice of breast self-examination in a sample of 48 women. The combined variables of health beliefs, internal health locus of control, religion, and occupation explained 80% of the variance in nonpractice and 73.3% of the variance for high practice. Moderate frequency practice was not a significant predictor of breast self-examination. Discriminant function analysis, canonical correlation, and analysis of variance were used in the data analysis.

Adult↗

PubMedDate not supplied

First postoperative week activity patterns and recovery in women after coronary artery bypass surgery.

The purpose of this study was to examine the relationship between activity-rest patterns and recovery in women during the first week after coronary artery bypass surgery (CABS). Twenty-five women wore wrist actigraphs to measure activity objectively throughout the first postoperative week. The Sickness Impact Profile (SIP) and length of postoperative hospital stay (LOS) were used as measures of recovery. Analysis of the activity data indicated that 21 (84%) of the participants had statistically significant positive linear trends in activity. Spectrum analysis indicated that 18 participants had periods that could be defined as circadian, 1 had a shorter period, and 6 had longer periods. After controlling for the effect of preoperative functional status, the period and linear trend of activity explained 28% of the variance in the SIP score at 1 week and 33% of the variance in length of stay. Positive linear trends in activity and circadian activity periods were related to better functioning and shorter length of stay.

Activity Cycles↗