Biomedical subjects

E L Curry

Publications and source records attributed to E L Curry.

4 recordsLinked to original sources

PubMed1981

Effects of the asymmetric tonic neck reflex and high-frequency muscle vibration on isometric wrist extension strength in normal adults.

The effects of the asymmetric tonic neck reflex and high-frequency muscle vibration on isometric wrist extension strength were studied in 150 normal, right-handed adults between the ages of 18 and 40. Subjects were randomly assigned to one of five groups. From data collected from two control groups, we determined any confounding effects of fatigue, experimental learning, or weight of the vibrator in contact with the skin surface overlying the wrist extensor muscle bellies. From measurements taken from three experimental groups, we determined the individual and combined effects of the asymmetric tonic neck reflex and vibration. The reflex was elicited with active head rotation. Strength significantly increased with active head rotation toward the extending wrist; active head rotation away from the wrist significantly decreased strength. Vibration of the extensor surface of the forearm with the head in neutral significantly increased strength. The combination of active head rotation toward the extending wrist and vibration of the extensor surface resulted in a greater increase in strength than did either technique individually.

Adolescent↗

PubMedDate not supplied

Research methodology. Part III: understanding multiple correlation analysis and multiple regression.

This is part III of a case series on research methodology with additional case demographic information. The relationship of a dependent variable with two or more independent variables is explained and used to illustrate multiple correlation and multiple regression.

Data Interpretation, Statistical↗

PubMedDate not supplied

Research methodology. Part IV: Understanding canonical correlation analysis.

Canonical correlation is presented as a technique to determine how sets of dependent variables are related with sets of independent variables. Canonical correlation reveals the strength of the relationship between the clusters using case data as illustration, three pairs of clusters (factors or profiles) emerged. Interpretation of the clusters are presented. As indicated in the case presentation, Canonical Correlation (CA) is the fourth in a series of methodologies selected for illustration as precursors to advanced statistics and modeling. In this paper, background will be given, a schematic example presented, sample size and CA, SPSS procedure to perform CA, and interpretation of CA and possible uses of CA in nursing research.

Analysis of Variance↗

PubMedDate not supplied

Advances in meta-analysis as a research method.

Meta-analysis is a method of data analysis applied to summarizing research findings, both quantitative and qualitative summaries of individual studies. Rooted in the fundamental values of the scientific enterprise of replicability, causal and correlational analysis, it is useful for answering three general questions: What is the central tendency or typical study outcome? How much variability exists among study outcomes? What is the explanation of the variability? Advanced statistical and mathematical techniques are being used in counting studies with significant and non-significant findings; in combining effect size estimates based on fixed- or random-effects models; in the use of general linear models; and, Bayesian procedures. The methodology of meta-analysis and suggestions for publications are presented as well as appropriate software programs available for use in the meta-analytic process are explored. The benefits of meta-analysis as a research method in effecting health policy development is offered as a pragmatic perspective for future consideration. Conclusions have implications for the use of meta-analysis as a teaching strategy and as a methodology in nursing research and other applied sciences. In view of the rapid pace of knowledge development and increased public demand for accountability, meta-analysis offers an opportunity for organizing phenomena which gives direction for provision of quality health care.

Humans↗