Aim: The aim of the study is to measure energy expenditure
during treadmill walking, effect of BMI on energy expenditure and thus, to
compare physiological cost index during treadmill Walking in Underweight,
Normal, Overweight & Obese individuals.
Background: The physiological cost index (PCI) is a simple
tool used to measure energy expenditure during walking. India is facing dual
burden of underweight and overweight. Approximately 43-48% of Indian men and
women of 15-45 years of age group are facing the dual burden out of which
30-36% people are underweight and 9-13% people are overweight. PCI is founded
on the principle that heart Rate & walking speed are linearly related to
oxygen consumption at sub-maximal levels of exercise.
Methodology: A cross sectional observational study included
48 subject had willing to participate in the study. All subjects divided
according to inclusion criteria. Then subjects were asked to performed
treadmill walking at their natural walking speed. Then PCI was calculated according
to formula.
Results: Level of significant was kept 5%. One-Way Anova
test was apply and significance result was founded. Multiple comparisons
between all groups was doing using Post hoc analysis in Bonferroni correction
test. Study suggested that increase energy expenditure by increasing physical
activity, in obesity increase sympathetic nervous system activation led to
increase heart rate and energy expenditure.
Conclusion: There was a significant difference in value of
physiological cost index in different body mass index. There was relation
between BMI and oxygen capacity.
Author(s) Details:
Namrata Parekh,
AIMS College of Physiotherapy, Vadavali, Mumbai, India.
Please see the link here: https://stm.bookpi.org/ANUMS-V4/article/view/13181
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