How does fatigue affect handstand balance? a non-linear approach to study fatigue influence in handstand performance.
Rafael Sabido, Fernando García-Aguilar, Carla Caballero and 1 others
PMID 39334356WHAT IT FOUND
Fatigue increased side-to-side sway and altered balance complexity in healthy male gymnasts performing handstands.
Force plates detected these changes more reliably than wearable sensors. This exploratory work does not establish clinical norms or treatment effects for patients.
Key findings
01After a fatigue protocol, side-to-side force dispersion increased significantly, with a strong effect size.
02Non-linear analysis of force plate signals showed significant changes in complexity after fatigue, while wearable sensor signals did not reach significance.
03Wearable sensors showed a trend towards increased irregularity, possibly reflecting a shift to hip strategies to maintain balance.
STILL TO COME
How it was doneWhat they found
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What it does not show
The study included only 14 healthy male acrobatic gymnasts, so results do not apply to patients, older adults, or female athletes. The sample size was small and the study was explicitly exploratory, meaning these findings are preliminary. The fatigue protocol involved push-ups, which may not mimic the specific fatigue patterns seen in clinical balance impairments. The authors note that the force plate was more sensitive than the wearable sensors, limiting the immediate clinical utility of the cheaper devices for this specific analysis.
Declared interests
The study was funded by the Ministerio de Ciencia e Innovación and Conselleria de Innovación, Universidades, Ciencia y Sociedad Digital. No conflicts of interest were declared.
The easy way to misread this
Do not assume that wearable sensors can replace force plates for assessing balance complexity in clinical settings. In this study, the sensors missed significant changes in movement structure that the force plate detected, and the results come from elite athletes, not patients with balance disorders.