Vitamin D -- and if So Which Essay

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Vitamin D -- and if so which level of Vitamin D -- would prevent risk of falling of elderly.

The problem is that elderly are at great risk of falling and, consequently, injuring themselves. Injury, sometimes, leads to death. There is a high rate of falls amongst the elderly

Vitamin D may prevent and reduce quantity of falls. Most studies seem to point to this, but there are contradictory results. The level of Vitamin D too that is effective in preventing falls is unclear.

Analyze the literature review.

The literature review is summarized, succinct, and pertinent to the subject. The authors cluster their research -- they do not deliberate on them in depth singling out studies and describing or analyzing those studies. Rather they take a cluster of related studies, mainly from the last five to ten years and show how they point to Vitamin D being a feasible solution for preventing falls. They also summarize their studies indicating gaps that still remain. Three of the studies are from the 1990s; one is from 1987, but otherwise the majority of their literature review is pertinent.

It would have been helpful for us to have known a bit about the key studies so that we can assess whether the design of the study (the sample, conditions and so forth) render it reliable and valid.

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3. Analyze the study framework or theoretical perspective.

There was no theoretical perspective. The study framework was a double blind, control design group. It was double blinded in that both participants and researchers were unaware of the kind of supplement that participants were receiving -- whether they were receiving a placebo or one of the Vitamin D supplements since all Vitamin D tablets and placebos were packaged the same.

It was also a control design group in that one group received the placebo whiles the other recie3ved the Vitamin D supplement.

The Vitamin D supplement category was also divided into 4 groups (each with a different unit of Vitamin D). The participants were randomly selected and divided between the 5 groups.

Their design is the ideal scientific prototype: random selection was done amongst a sufficiently large population (n=184). There was a control and treatment group, and it was a double-blind study.

4. Identify, describe, and critique for appropriateness any research objectives, questions, or hypothesis.

The term' fall' was insufficiently -- in fact, not all -- defined and, later, as we see minor falls were omitted. On the other hand, researchers were careful to elaborate and select all inclusive and exclusive conditions.

The researchers described a limited and clearly defined research….....

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