Thesis

Diet and Physical Activity on Bone Mineral Density of Postmenopausal New Zealand Women

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Osteoporosis is a globally prevalent metabolic bone condition characterized by fragile and
low density of bones commonly affecting elderly individuals. It arises from a combination
of factors, which include aging, lifestyle choices, genetics and insufficient nutritional
resources to sustain optimal bone mineral density (BMD). This condition elevates the risk
of bone fractures and is often asymptomatic until a fracture occurs. Due to its high
incidence rate, this research aimed to analyze any significant differences between dietary
intake and physical activity on BMD among post menopausal women in New Zealand,
with a pilot sample of 51 participants ranging from 50-85 years old. The study
methodology involved the assessment of bones using a Quantitative Ultrasound, an
effective, non-invasive instrument for bone density determination. The site of assessment
involved the Achilles Heel as an accessible, highly trabecular and weight bearing site. This
device derived the values of t-scores, estimating bone health relative to a healthy adult
and z-scores which compare the bone density to age-matched averages. The investigation
of previous milk intake, physical activity rates, sun exposure and calcium intake were
done using questionnaires to determine behaviors and patterns of different individuals.
The study participants exhibited an average calcium intake of 1107.08+557.0 mg, z-score
of 1.02+1.2 and sun exposure of 22.36+10.8 minutes For physical activity, only 13.7% of
the sample performed high rates of exercise. Through these results, statistical analysis
denied significant correlation between the variables on BMD. The results of this pilot
study could be used in the fabrication of other studies with the aim to explore variables
which affect bone density, measured using the QUS machine.

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Availability

Detail Information

Series Title

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Call Number

FSN 24-018

Publisher

: i3L Press., 2024

Collation

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Language

English

ISBN/ISSN

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Classification

NONE

Content Type

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Media Type

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Carrier Type

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Edition

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Subject(s)

physical activity
Osteoporosis
Dietary Intake
Bone Mineral Density
Postmenopausal Women

Specific Detail Info

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Statement of Responsibility

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