Relationship between postural control and muscle activity during a handstand in young and adult gymnasts

Human Movement Science
Andrzej KochanowiczKazimierz Kochanowicz

Abstract

The aim of this study was to evaluate the relationship between muscle activity and inter-muscle contributions patterns and postural control during a handstand. Additionally, outcomes were compared between young and adult gymnasts (mean ± SD: 13.9 ± 0.7 and 23 ± 3 years respectively). Participants performed three trials of a 10 s handstand on a force platform with simultaneous EMG signal recording at the upper and lower limbs. Adult gymnasts demonstrated significantly better postural control in each studied variable. The wrist flexors demonstrated the highest relative mean (60%) and peak (200%) EMG activity of all muscle groups studied. Wrist flexor activity was also highly correlated with postural control variables in both groups. The trapezius descendens and wrist flexor muscles demonstrated the highest contribution (20-26% and 25.5-28% respectively), followed by anterior deltoid (15-18%) and triceps brachii (13-16%) in both groups. The young gymnast group demonstrated significantly greater mean relative muscle activity at the triceps brachii, biceps brachii and rectus femoris compared with the adult group (88% (p = 0.023), 150% (p = 0.003) and 75% (p = 0.039) respectively). To conclude, despite comparable inter-muscle contrib...Continue Reading

Citations

Jan 12, 2021·Computer Methods in Biomechanics and Biomedical Engineering·Mailyn Calderón-DíazRodrigo Salas
Mar 30, 2021·PeerJ·Miyuki NakataniYohei Takai
May 25, 2021·Journal of Human Kinetics·Bartłomiej NiespodzińskiKazimierz Kochanowicz

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