Balance Control and Peripheral Muscle Function in Aging: A Comparison Between Individuals with Acromegaly and Healthy Subjects

in Journal of Aging and Physical Activity
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Advances in the knowledge of acromegaly are leading to an increase in the survival rate of acromegalic subjects. This study was conducted to evaluate balance control, risk of falls, and peripheral muscle function in acromegalic older adults. Seventeen older subjects with acromegaly (67 [63–73] years) and 20 paired control subjects were evaluated with balance scales, force platform, and knee isokinetic dynamometry tests. There were significant differences between the groups on several balance and gait scales, with a worse performance and greater risk of falls in the acromegalic older adults. Acromegalic older adults had lower values for peak torque, maximum repetition of the total work, and total work during extension at 240°/s. The acromegalic older adults had higher values in the medial-lateral range. Acromegaly subjects had lateral instability that compromises their body balance and increases the risk of falls. Moreover, there was a propensity for muscle fatigue in these individuals.

Homem, Guimarães, and Lopes are with the Rehabilitation Sciences Post-Graduation Program, Augusto Motta University Center, Rio de Janeiro, Brazil. Soares is with the Admiral Adalberto Nunes Physical Education Center (Brazilian Navy), Rio de Janeiro, Brazil. Kasuki and Gadelha are with the Neuroendocrinology Research Center / Endocrinology Section, Medical School and Hospital Universitário Clementino Fraga Filho, Universidade Federal do Rio de Janeiro, and Neuroendocrine Unit, Instituto Estadual do Cérebro Paulo Niemeyer, Secretaria Estadual de Saúde do Rio de Janeiro, Rio de Janeiro, Brazil.

Address author correspondence to Agnaldo José Lopes at