Obesity-related differences in neuromuscular fatigue in adolescent girls

Abstract

Obese girls fatigue faster than their lean counterparts. The peripheral factors mainly account for fatigue in obese girls, whereas central factors are mainly involved in lean girls.

Performance and reproducibility on shuttle run test between obese and non-obese children: a cross-sectional study

“…Although we have not observed difference between the performance from SRT1 to SRT2 intragroup, on average, obese children traveled shorter distance than non-obese children. This finding could be related to higher amount of type II fibers which are more prone to fatigue and the excessive work to move the body mass [30]. The latter can be supported in the present study by the negative and significant correlation between the traveled distance and weight and BMI only in the obese children, i.e.…”

“…However, we cannot rule out that the reduced SRT2 performance may have occurred due to muscle fatigue, not only for peripheral muscle fatigue but also for central fatigue. A previous study has shown that obese girls (13.9 ± 0.9 years) presented early fatigue in comparison with their lean peers [30]. Although we have not observed difference between the performance from SRT1 to SRT2 intragroup, on average, obese children traveled shorter distance than non-obese children.…”

“…Although there are various studies on Shuttle run test in children available [26–30], reports on reproducibility are scarce. Results found in this study confirm that there is no need to repeat SRT in healthy children because the better performance occurred in the first SRT.…”

Balance and musculoskeletal flexibility in children with obesity: a cross-sectional study

“…7 There are several rationales for the impaired balance concomitant with obesity: decreased sensitivity of the mechanoreceptors in the feet, anterior shift in the center of mass, motor delay, reduced intensity of the gray matter of the cerebellum on magnetic resonance imaging, and neuromuscular fatigue. [21][22][23][24][25] The postural sway was reported to increase the exposure to high ground reaction force during walking, and this can lead to gait abnormalities and a high risk of falling. 26,27 A 2.5-year cohort prospective study in England investigated the subject of injuries in children with obesity aged seven to twelve years.…”

Relationship between anthropometric and electromyographic variables of the scapular muscles

“…Overweight and obesity are characterized by an accumulation of adipose tissue along the compartments of the human body, especially in the subcutaneous zone (80%) and the central region [5]. This leads to an in-crease in chronic inflammation, producing skeletal muscle disorders that alter the kinetics, kinematics, and neuromuscular activity of the whole body [6,7]. in this context, the accumulation of fat has been considered as one of the factors that modify the electromyographic (EMG) record [8].…”