The Inverted Swallow in Artistic Gymnastics and Its Related Preconditioning Strengthening Exercises: Electromyographic Analysis, Muscle Synergies and Training Implications

The Inverted Swallow (IS) is a rare isometric upper-body skill in artistic gymnastics. Athletes use Preconditioning Strengthening Exercises (PSEs) to develop the strength necessary to hold the IS at competition rings. However, the specific muscle excitation and synergies typical of the IS and its PS...

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Main Authors: Giuseppe Rosaci, Sandro Bartolomei, Silvia Fantozzi, Christoph Schärer
Format: Article
Language:English
Published: MDPI AG 2025-07-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/15/13/7537
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author Giuseppe Rosaci
Sandro Bartolomei
Silvia Fantozzi
Christoph Schärer
author_facet Giuseppe Rosaci
Sandro Bartolomei
Silvia Fantozzi
Christoph Schärer
author_sort Giuseppe Rosaci
collection DOAJ
description The Inverted Swallow (IS) is a rare isometric upper-body skill in artistic gymnastics. Athletes use Preconditioning Strengthening Exercises (PSEs) to develop the strength necessary to hold the IS at competition rings. However, the specific muscle excitation and synergies typical of the IS and its PSEs remain unexplored. Thus, this study analyzed muscle excitations and synergies during the IS and its five common PSEs. Muscle excitation was recorded from the pectoralis major, latissimus dorsi, triceps brachii, infraspinatus, trapezius, serratus anterior, biceps brachii and posterior deltoid muscles in six elite calisthenics athletes (age: 24.5 ± 3.0 years; height: 168.6 ± 5.8 cm; body mass: 65.0 ± 4.7 kg). Non-Negative Matrix Factorization was used to extract synergies. The results showed a predominant role of the posterior deltoid and triceps brachii during the IS. Significant differences were observed in the muscle excitation of the triceps brachii between the IS and its PSEs (<i>p</i> ≤ 0.001; W = 0.765), and in the posterior deltoid (<i>p</i> = 0.002; W = 0.629). Muscle synergy patterns also differed in simultaneous muscle activation between the IS and its PSEs. These findings provide the first detailed evidence of the characteristics of the IS element, providing insights for optimizing strength training and gymnastics performance.
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spelling doaj-art-d4f175de26674296a5c3b6045d3fe9132025-08-20T03:28:28ZengMDPI AGApplied Sciences2076-34172025-07-011513753710.3390/app15137537The Inverted Swallow in Artistic Gymnastics and Its Related Preconditioning Strengthening Exercises: Electromyographic Analysis, Muscle Synergies and Training ImplicationsGiuseppe Rosaci0Sandro Bartolomei1Silvia Fantozzi2Christoph Schärer3Department for Life Quality Studies, University of Bologna, 40126 Bologna, ItalyDepartment for Life Quality Studies, University of Bologna, 40126 Bologna, ItalyDepartment of Electrical Energy and Information Engineering, 40126 Bologna, ItalyDepartment of Elite Sport, Swiss Federal Institute of Sport Magglingen (SFISM), 2532 Magglingen, SwitzerlandThe Inverted Swallow (IS) is a rare isometric upper-body skill in artistic gymnastics. Athletes use Preconditioning Strengthening Exercises (PSEs) to develop the strength necessary to hold the IS at competition rings. However, the specific muscle excitation and synergies typical of the IS and its PSEs remain unexplored. Thus, this study analyzed muscle excitations and synergies during the IS and its five common PSEs. Muscle excitation was recorded from the pectoralis major, latissimus dorsi, triceps brachii, infraspinatus, trapezius, serratus anterior, biceps brachii and posterior deltoid muscles in six elite calisthenics athletes (age: 24.5 ± 3.0 years; height: 168.6 ± 5.8 cm; body mass: 65.0 ± 4.7 kg). Non-Negative Matrix Factorization was used to extract synergies. The results showed a predominant role of the posterior deltoid and triceps brachii during the IS. Significant differences were observed in the muscle excitation of the triceps brachii between the IS and its PSEs (<i>p</i> ≤ 0.001; W = 0.765), and in the posterior deltoid (<i>p</i> = 0.002; W = 0.629). Muscle synergy patterns also differed in simultaneous muscle activation between the IS and its PSEs. These findings provide the first detailed evidence of the characteristics of the IS element, providing insights for optimizing strength training and gymnastics performance.https://www.mdpi.com/2076-3417/15/13/7537non-negative matrix factorizationstill ringsmuscle excitationstrength traininggymnastics performance
spellingShingle Giuseppe Rosaci
Sandro Bartolomei
Silvia Fantozzi
Christoph Schärer
The Inverted Swallow in Artistic Gymnastics and Its Related Preconditioning Strengthening Exercises: Electromyographic Analysis, Muscle Synergies and Training Implications
Applied Sciences
non-negative matrix factorization
still rings
muscle excitation
strength training
gymnastics performance
title The Inverted Swallow in Artistic Gymnastics and Its Related Preconditioning Strengthening Exercises: Electromyographic Analysis, Muscle Synergies and Training Implications
title_full The Inverted Swallow in Artistic Gymnastics and Its Related Preconditioning Strengthening Exercises: Electromyographic Analysis, Muscle Synergies and Training Implications
title_fullStr The Inverted Swallow in Artistic Gymnastics and Its Related Preconditioning Strengthening Exercises: Electromyographic Analysis, Muscle Synergies and Training Implications
title_full_unstemmed The Inverted Swallow in Artistic Gymnastics and Its Related Preconditioning Strengthening Exercises: Electromyographic Analysis, Muscle Synergies and Training Implications
title_short The Inverted Swallow in Artistic Gymnastics and Its Related Preconditioning Strengthening Exercises: Electromyographic Analysis, Muscle Synergies and Training Implications
title_sort inverted swallow in artistic gymnastics and its related preconditioning strengthening exercises electromyographic analysis muscle synergies and training implications
topic non-negative matrix factorization
still rings
muscle excitation
strength training
gymnastics performance
url https://www.mdpi.com/2076-3417/15/13/7537
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