Leg Position and Blood Pressure Accuracy: A Nursing Study Review
This paper critically evaluates a research article by Foster-Fitzpatrick, Ortiz, Sibilano, Marcantonio, and Brown examining whether leg position — specifically crossing one leg at the knee versus keeping both feet flat on the floor — affects the accuracy of blood pressure measurements. The review analyzes the article's clinical problem statement, literature review, research design, and methodology, while identifying key limitations such as the exclusively male, hypertensive sample population and the failure to control for antihypertensive medications. The paper concludes with recommendations for strengthening future research, including broader sample diversity, gender inclusion, and medication control.
- Introduction and Clinical Relevance: Clinical importance of accurate blood pressure measurement
- Literature Review and Hypothesis: Balanced review and inconsistent prior findings on leg crossing
- Research Question and Methodology: Study aims, measurement tools, and procedural gaps
- Research Design and Its Limitations: Sample homogeneity and uncontrolled medication variables
- Recommendations for Future Research: Broader samples, gender inclusion, medication control
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What makes this paper effective
- The paper follows a clear, logical structure that mirrors the organization of the article under review, making it easy for readers to follow the critique section by section.
- It balances acknowledgment of the study's strengths — such as its ANOVA design and concise presentation — with specific, well-reasoned criticism of its methodological limitations.
- Concrete improvement suggestions in the final section demonstrate the writer's ability to move beyond criticism toward constructive academic engagement.
Key academic technique demonstrated
The paper demonstrates effective critical appraisal of a research article, a core skill in nursing and health sciences education. The writer identifies internal validity threats — uncontrolled medication types, homogeneous sample demographics, and ambiguous procedural descriptions — and links each flaw directly to its effect on the study's generalizability and statistical integrity.
Structure breakdown
The paper is organized into five thematic sections: (1) identification of the clinical problem and its nursing relevance, (2) evaluation of the literature review's balance and depth, (3) assessment of the research question and measurement clarity, (4) critique of the research design's statistical and demographic limitations, and (5) forward-looking recommendations for improving study validity. Each section builds logically on the last.
Introduction and Clinical Relevance
The clinical problem is identified immediately in the article. The authors point out that measuring blood pressure is "one of the most commonly used techniques in the diagnosis and treatment of various health care problems," and that, because of this, accurate blood pressure measurements are absolutely necessary (Foster-Fitzpatrick, Ortiz, Sibilano, Marcantonio & Brown, nd, p. 94). An inaccurate measurement could mean an incorrect diagnosis, which in turn might lead to patients being mistreated.
Blood pressure varies depending on a number of conditions, and the authors postulate that leg positioning might be one of the most important factors in determining the accuracy of blood pressure readings. Specifically, the authors hypothesize that blood pressure readings will be more accurate when patients keep both feet on the floor. The research is particularly relevant for nursing practice, as blood pressure readings are a routine part of patient intake and ongoing care.
Literature Review and Hypothesis
A brief but thorough literature review follows the introduction to the research article. Citing research that denies the relevance of leg positioning during blood pressure readings, the authors provide a balanced point of view regarding their hypothesis. The authors also defend their hypothesis by pointing out weaknesses in prior research that might have minimized the effect of leg positioning on blood pressure reading accuracy.
Furthermore, the authors explain the reasoning behind their hypothesis by citing research on the direct effect of leg crossing on blood pressure. Foster-Fitzpatrick et al. (nd) admit that findings related to the relationship between leg crossing and blood pressure are "inconsistent" (p. 95).
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