¶ … 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.
3. Analyze the study framework or theoretical perspective.
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