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NR439: Week 5 Evidence-Based Practice Reading Research Literature – Week 5
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Chamberlain College of NursingNR439: Evidence-Based Practice
Reading Research Literature – Week 5
Type your answers to the following questions using complete sentences and correct grammar,
spelling, and syntax. Click Save as and save the file with your last name and assignment, e.g.,
NR439_Reading_Research_Literature_Smith. Submit by 11:59 pm MT Sunday at the end of Week
5. The guidelines and grading rubric for this assignment may be found on the assignment page.
Title: RRL
Name: Mona Gouldner
The following questions pertain to:
Velayutham, S. G., Chandra, S. R., Bharath, S., & Shankar, R. G. (2017). Quantitative balance and
gait measurement in patients with frontotemporal dementia and Alzheimer diseases: A pilot
study. Indian Journal of Psychological Medicine, 39(2), 176-182. doi:10.4103/0253-
7176.203132
http://proxy.chamberlain.edu:8080/login?url=http://search.ebscohost.com/login.aspx?
direct=true&db=a9h&AN=122248443&site=eds-live&scope=site
1) What is the purpose of this research?
Researchers conduct studies to either prove or disprove a theory/hypothesis or to solve or
improve a “problem”. Conducting a systemic and rigorous research can help the health care
professionals consider their decisions for treatment, weigh out the different option which in turn,
can improve the situation. (Houser, 2018). The purpose of this research is to identify differences
in certain subclinical criteria with gait and balance to help with the prevention of falls that may
cause mortality in patients with Alzheimer disease and Frontotemporal dementias.
2) What is the research question (or questions)? This may be implicit or explicit.
In male patients between the ages of 50 to 70 years old can differences in gait and balance be
biomarkers for Alzheimer’s disease or Frontotemporal dementias. This researcher also
mentions if they can prove the differences, it may help medical professionals in decreasing
future falls that may cause mortality.
3) Give a complete description of the research design of this study.
The study is a quantitative study which was conducted to prove that the subclinical differences
in gait and balance can be a biomarker for Alzheimer’s disease and Frontotemporal dementia.
The researcher used the correlation study
4) What is the population (sample) for this study?
In this study, the researchers used twenty-four males divided in groups of 8 with probable
Alzheimer’s, Frontotemporal dementia and a healthy group as the control. This is a small
NR439_W5_Reading_Research_Literature_Form.docx 5/4/17 jw 1
, Chamberlain College of Nursing
NR439: Evidence-Based Practice
sample size and is limited to only male participants. If the researchers’ intentions are to compare
differences among just male patients with AD and FTD then the study may be adequate but
follow up studies may need to be conducted to rule out errors
5) Was the sample approach adequate for the research design that was selected and explain why.
This article identifies this study as a pilot study. Knowing that this is a pilot study tell the reader
that the researchers used a smaller sample size. By using a smaller sample size the researcher
can review the measures used to conduct study, the cost of the study, time required and
efficiency. This type of study is done to come up with a proposal to present when requesting
funding to conduct the study on a larger scale. Another study may need to be conducted with
females in the same age range and diagnoses and combines male and female research
candidates.
6) Describe the data collection procedure.
AS mentioned above the sample consisted of 28 male participants divided into 3 groups of 8.
One groups consisted patients with possible AD, the other group with possible FTD, the third
group consisted of healthy individuals as the control group. Those participants with the possible
AD or FTD were recruited from the Outpatient Department of Neurology and Geriatric Clinic.
The groups with the healthy individuals were recruited from the community.
Both balance and Gait were measured using single and dual tasks. Balance was analyzed in
two parts, 1) dynamic balance and 2) limits of stability. Measurements for dynamic balancing
were collected in 20 second timeframes. The deviation from baseline and the direction were
calculated during this time.
The limits of stability were determined by requesting he patients to sway to a certain direction
then return to center (balance) 100 times. This task needed to be completed in 300 seconds.
The less time it took the better the score. The dual task part also added a cognitive task.
The gait assessment was conducted using a treadmill. At this part of the study, speed, stride,
step length and variation were recorded. For the dual task a cognitive test was added once
again and the variation was determined. This assisted the researchers to identify the differences
in each of the groups.
7) How were the data analyzed after collection?
The researchers used the Shapiro-Wilkins test. It tests the normality of the criteria including age,
BMI, and educations. The paired-t test was used to analyze the single and dual task in the
groups.
8) Discuss the limitations found in the study.
The small sample size is a huge limitation in this study. Alzheimer’s disease and Frontotemporal
dementia occurs in women as well and men. Since this was only a pilot study and not funding
was provided this could also become a limitation to the researcher in recruiting participant for
the study as well as the tools required to conduct the study more effectively.
NR439_W5_Reading_Research_Literature_Form.docx 5/4/17 jw 2
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