Article

OBJECTIVE: To investigate the effects of weight reduction on foot structure,
gait, and dynamic plantar loading in obese adults.
DESIGN: In a 3-month
randomized-controlled trial, participants were randomized to receive either a
weight loss intervention based on portion-controlled meals or a delayed-treatment
control. PARTICIPANTS: 41 adults (32 F, 9 M) with a mean +/- SD age of 56.2 +/-
4.7 years and a BMI of 35.9 +/- 4.2 kg/m(2). MEASUREMENTS: Arch Height Index
(AHI), Malleolar Valgus Index (MVI), spatial and temporal gait parameters,
plantar peak pressure (PP) and weight were measured at baseline, 3, and 6 months.
RESULTS: The intervention group experienced significantly greater weight loss
than did the control group (5.9 +/- 4.0 kg versus 1.9 +/- 3.2 kg, p = 0.001)
after 3 months. There were no differences between the groups in anatomical foot
structure or gait. However, the treatment group showed a significantly reduced PP
than the control group beneath the lateral arch and the metatarsals 4 (all p
values < .05) at 3 months. The change in PP correlated significantly with the
change in weight at the metatarsal 2 (r = 0.57, p = 0.0219), metatarsal 3 (r =
0.56, p = 0.0064) and the medial arch (r = 0.26, p < 0.0001) at 6 months.
CONCLUSION: This was the first RCT designed to assess the effects of weight loss
on foot structure, gait, and plantar loading in obese adults. Even a modest
weight loss significantly reduced the dynamic plantar loading in obese adults.
However, weight loss appeared to have no effects on foot structure and gait.
CI - Copyright (c) 2014 Elsevier B.V. All rights reserved.

Langue : ANGLAIS