The aim of this study was to investigate the plantar pressure distribution (PPD) during walking in women with different body mass index (BMI) levels.
The study sample comprised of 163 Czech women. The participants underwent basic anthropometric measurements of body mass and body height with a digital medical scale with a stadiometer
Plantar pressure was recorded with a 125-Hz frequency using a Footscan 2m pressure measurement system.
Patients performed six trials of barefoot walking along an 8m walkway at a self-selected speed.
This study was similar to other studies in that it showed that the BMI influences the peak pressure in two aspects.
The first aspect is that increased body mass increases the peak pressure.
In agreement with this finding, are the results of authors who found that obesity is a significant predictor of larger peak pressures.
Regarding absolute pressures, the present study showed excessive loading (peak pressure) on the whole foot except for the second through fifth toes region.
Individuals with obesity had higher pressure impulse compared with normal weight individuals.
In obese or overweight participants compared with normal weight participants, relative pressure impulse was greater in the fourth and fifth metatarsal, toe and midfoot regions and smaller in the heel and second and third metatarsals.
Similarly, significant positive correlations between BMI and pressure impulse were found in the midfoot and fourth and fifth metatarsals, and significant negative correlations were found in the second and third metatarsals and heel.
These findings suggest that the effect of increased body mass is manifested more in the midfoot and the lateral part of the forefoot and less in the medial part of the foot.
This explains why some studies did not find any difference in total loading of the heel between obese and normal weight individuals.
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