Gymnasts and non-athletes muscle activation and torque production at the ankle joint
Artistic Gymnasts (AG) execute specific movements that require substantial movement control and force production at the ankle joint. This high demand might change the neuromechanical properties of the ankle joint muscles in these athletes compared to non-athlete girls (NAG). The aim of this study wa...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Universidade Federal de Santa Catarina
2014-07-01
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| Series: | Revista Brasileira de Cineantropometria e Desempenho Humano |
| Subjects: | |
| Online Access: | https://periodicos.ufsc.br/index.php/rbcdh/article/view/32322 |
| _version_ | 1818284191310151680 |
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| author | Natália Batista Albuquerque Goulart Caroline Pieta Dias Fernando de Aguiar Lemos Jeam Marcel Geremia João Carlos Oliva Marco Aurélio Vaz |
| author_facet | Natália Batista Albuquerque Goulart Caroline Pieta Dias Fernando de Aguiar Lemos Jeam Marcel Geremia João Carlos Oliva Marco Aurélio Vaz |
| author_sort | Natália Batista Albuquerque Goulart |
| collection | DOAJ |
| description | Artistic Gymnasts (AG) execute specific movements that require substantial movement control and force production at the ankle joint. This high demand might change the neuromechanical properties of the ankle joint muscles in these athletes compared to non-athlete girls (NAG). The aim of this study was to compare muscle activation and torque production at the ankle joint between AG and NAG. Ten AG (11.70 ± 1.06 years of age) and 10 NAG (11.70 ± 1.49 years of age) participated in the study. Electromyographic (EMG) signals of medial gastrocnemius (MG), soleus (SO) and tibialis anterior (TA) were obtained simultaneously to the maximal isometric plantarflexion (PFT) and dorsiflexion (DFT) torques of the dominant limb during a maximal voluntary isometric contraction (MVIC) at five different joint angles (20°, 10°, 0°, -10° e -20°). Neuromuscular efficiency was also calculated by the Torque/EMG ratio. AG presented higher PFT (p<0.01) and smaller DFT (p<0.05) at all joint angles compared to NAG. RMS values from the three muscles were similar between groups (p>0.05). In addition, AG showed higher values for plantar flexion neuromuscular efficiency and smaller values of dorsiflexion neuromuscular efficiency compared to the NAG (p<0.01). Higher sports demands of AG determined higher PFT, higher plantar flexor efficiency, smaller DFT but similar activation of MG, SO and TA compared to NAG. |
| first_indexed | 2024-12-13T00:48:53Z |
| format | Article |
| id | doaj.art-781c48eed74f4365a15892ba83d7b410 |
| institution | Directory Open Access Journal |
| issn | 1415-8426 1980-0037 |
| language | English |
| last_indexed | 2024-12-13T00:48:53Z |
| publishDate | 2014-07-01 |
| publisher | Universidade Federal de Santa Catarina |
| record_format | Article |
| series | Revista Brasileira de Cineantropometria e Desempenho Humano |
| spelling | doaj.art-781c48eed74f4365a15892ba83d7b4102022-12-22T00:04:58ZengUniversidade Federal de Santa CatarinaRevista Brasileira de Cineantropometria e Desempenho Humano1415-84261980-00372014-07-0116555556210.5007/1980-0037.2014v16n5p55522307Gymnasts and non-athletes muscle activation and torque production at the ankle jointNatália Batista Albuquerque Goulart0Caroline Pieta Dias1Fernando de Aguiar Lemos2Jeam Marcel Geremia3João Carlos Oliva4Marco Aurélio Vaz5Federal University of Rio Grande do SulFederal University of Rio Grande do Sul. Faculty of Serra Gaúcha.Federal University of Rio Grande do Sul. Faculty Cenecista of OsórioFederal University of Rio Grande do Sul. Faculty of Physical Education Sogipa.Federal University of Rio Grande do SulFederal University of Rio Grande do SulArtistic Gymnasts (AG) execute specific movements that require substantial movement control and force production at the ankle joint. This high demand might change the neuromechanical properties of the ankle joint muscles in these athletes compared to non-athlete girls (NAG). The aim of this study was to compare muscle activation and torque production at the ankle joint between AG and NAG. Ten AG (11.70 ± 1.06 years of age) and 10 NAG (11.70 ± 1.49 years of age) participated in the study. Electromyographic (EMG) signals of medial gastrocnemius (MG), soleus (SO) and tibialis anterior (TA) were obtained simultaneously to the maximal isometric plantarflexion (PFT) and dorsiflexion (DFT) torques of the dominant limb during a maximal voluntary isometric contraction (MVIC) at five different joint angles (20°, 10°, 0°, -10° e -20°). Neuromuscular efficiency was also calculated by the Torque/EMG ratio. AG presented higher PFT (p<0.01) and smaller DFT (p<0.05) at all joint angles compared to NAG. RMS values from the three muscles were similar between groups (p>0.05). In addition, AG showed higher values for plantar flexion neuromuscular efficiency and smaller values of dorsiflexion neuromuscular efficiency compared to the NAG (p<0.01). Higher sports demands of AG determined higher PFT, higher plantar flexor efficiency, smaller DFT but similar activation of MG, SO and TA compared to NAG.https://periodicos.ufsc.br/index.php/rbcdh/article/view/32322electromyographygymnasticstorquetraining |
| spellingShingle | Natália Batista Albuquerque Goulart Caroline Pieta Dias Fernando de Aguiar Lemos Jeam Marcel Geremia João Carlos Oliva Marco Aurélio Vaz Gymnasts and non-athletes muscle activation and torque production at the ankle joint Revista Brasileira de Cineantropometria e Desempenho Humano electromyography gymnastics torque training |
| title | Gymnasts and non-athletes muscle activation and torque production at the ankle joint |
| title_full | Gymnasts and non-athletes muscle activation and torque production at the ankle joint |
| title_fullStr | Gymnasts and non-athletes muscle activation and torque production at the ankle joint |
| title_full_unstemmed | Gymnasts and non-athletes muscle activation and torque production at the ankle joint |
| title_short | Gymnasts and non-athletes muscle activation and torque production at the ankle joint |
| title_sort | gymnasts and non athletes muscle activation and torque production at the ankle joint |
| topic | electromyography gymnastics torque training |
| url | https://periodicos.ufsc.br/index.php/rbcdh/article/view/32322 |
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