Gastrocnemius Medialis Architectural Properties in Flexibility Trained and Not Trained Child Female Athletes: A Pilot Study
Gastrocnemius medialis (GM) architecture and ankle angle were compared between flexibility trained (n = 10) and not trained (n = 6) female athletes, aged 8−10 years. Ankle angle, fascicle length, pennation angle and muscle thickness were measured at the mid-belly and the distal part of GM,...
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MDPI AG
2020-03-01
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| Series: | Sports |
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| Online Access: | https://www.mdpi.com/2075-4663/8/3/29 |
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doaj-7e8489500c7f43f4914d1558af67a60a2020-11-24T21:53:48ZengMDPI AGSports2075-46632020-03-01832910.3390/sports8030029sports8030029Gastrocnemius Medialis Architectural Properties in Flexibility Trained and Not Trained Child Female Athletes: A Pilot StudyIoli Panidi0Gregory C. Bogdanis1Vasiliki Gaspari2Polyxeni Spiliopoulou3Anastasia Donti4Gerasimos Terzis5Olyvia Donti6Sports Performance Laboratory, School of Physical Education & Sport Science, National and Kapodistrian University of Athens, 17237 Athens, GreeceSports Performance Laboratory, School of Physical Education & Sport Science, National and Kapodistrian University of Athens, 17237 Athens, GreeceSports Performance Laboratory, School of Physical Education & Sport Science, National and Kapodistrian University of Athens, 17237 Athens, GreeceSports Performance Laboratory, School of Physical Education & Sport Science, National and Kapodistrian University of Athens, 17237 Athens, GreeceSports Performance Laboratory, School of Physical Education & Sport Science, National and Kapodistrian University of Athens, 17237 Athens, GreeceSports Performance Laboratory, School of Physical Education & Sport Science, National and Kapodistrian University of Athens, 17237 Athens, GreeceSports Performance Laboratory, School of Physical Education & Sport Science, National and Kapodistrian University of Athens, 17237 Athens, GreeceGastrocnemius medialis (GM) architecture and ankle angle were compared between flexibility trained (n = 10) and not trained (n = 6) female athletes, aged 8−10 years. Ankle angle, fascicle length, pennation angle and muscle thickness were measured at the mid-belly and the distal part of GM, at rest and at the end of one min of static stretching. Flexibility trained (FT) and not trained athletes (FNT) had similar fascicle length at the medial (4.19 ± 0.37 vs. 4.24 ± 0.54 cm, respectively, <i>p</i> = 0.841) and the distal part of GM (4.25 ± 0.35 vs. 4.18 ± 0.65 cm, respectively, <i>p</i> = 0.780), similar pennation angles, and muscle thickness (<i>p</i> > 0.216), and larger ankle angle at rest (120.9 ± 4.2 vs. 110.9 ± 5.8°, respectively, <i>p</i> = 0.001). During stretching, FT displayed greater fascicle elongation compared to FNT at the medial (+1.67 ± 0.37 vs. +1.28 ± 0.22 cm, respectively, <i>p</i> = 0.048) and the distal part (+1.84 ± 0.67 vs. +0.97 ± 0.97 cm, respectively, <i>p</i> = 0.013), larger change in joint angle and muscle tendon junction displacement (MTJ) (<i>p</i> < 0.001). Muscle thickness was similar in both groups (<i>p</i> > 0.053). Ankle dorsiflexion angle significantly correlated with fascicle elongation at the distal part of GM (<i>r</i> = −0.638, <i>p</i> < 0.01) and MTJ displacement (<i>r </i>= −0.610, <i>p</i> < 0.05). Collectively, FT had greater fascicle elongation at the medial and distal part of GM and greater MTJ displacement during stretching than FNT of similar age.https://www.mdpi.com/2075-4663/8/3/29youthfascicle lengthmuscle thicknessmaturationstretching exercisesmusculotendinous junctionultrasound |
| collection |
DOAJ |
| language |
English |
| format |
Article |
| sources |
DOAJ |
| author |
Ioli Panidi Gregory C. Bogdanis Vasiliki Gaspari Polyxeni Spiliopoulou Anastasia Donti Gerasimos Terzis Olyvia Donti |
| spellingShingle |
Ioli Panidi Gregory C. Bogdanis Vasiliki Gaspari Polyxeni Spiliopoulou Anastasia Donti Gerasimos Terzis Olyvia Donti Gastrocnemius Medialis Architectural Properties in Flexibility Trained and Not Trained Child Female Athletes: A Pilot Study Sports youth fascicle length muscle thickness maturation stretching exercises musculotendinous junction ultrasound |
| author_facet |
Ioli Panidi Gregory C. Bogdanis Vasiliki Gaspari Polyxeni Spiliopoulou Anastasia Donti Gerasimos Terzis Olyvia Donti |
| author_sort |
Ioli Panidi |
| title |
Gastrocnemius Medialis Architectural Properties in Flexibility Trained and Not Trained Child Female Athletes: A Pilot Study |
| title_short |
Gastrocnemius Medialis Architectural Properties in Flexibility Trained and Not Trained Child Female Athletes: A Pilot Study |
| title_full |
Gastrocnemius Medialis Architectural Properties in Flexibility Trained and Not Trained Child Female Athletes: A Pilot Study |
| title_fullStr |
Gastrocnemius Medialis Architectural Properties in Flexibility Trained and Not Trained Child Female Athletes: A Pilot Study |
| title_full_unstemmed |
Gastrocnemius Medialis Architectural Properties in Flexibility Trained and Not Trained Child Female Athletes: A Pilot Study |
| title_sort |
gastrocnemius medialis architectural properties in flexibility trained and not trained child female athletes: a pilot study |
| publisher |
MDPI AG |
| series |
Sports |
| issn |
2075-4663 |
| publishDate |
2020-03-01 |
| description |
Gastrocnemius medialis (GM) architecture and ankle angle were compared between flexibility trained (n = 10) and not trained (n = 6) female athletes, aged 8−10 years. Ankle angle, fascicle length, pennation angle and muscle thickness were measured at the mid-belly and the distal part of GM, at rest and at the end of one min of static stretching. Flexibility trained (FT) and not trained athletes (FNT) had similar fascicle length at the medial (4.19 ± 0.37 vs. 4.24 ± 0.54 cm, respectively, <i>p</i> = 0.841) and the distal part of GM (4.25 ± 0.35 vs. 4.18 ± 0.65 cm, respectively, <i>p</i> = 0.780), similar pennation angles, and muscle thickness (<i>p</i> > 0.216), and larger ankle angle at rest (120.9 ± 4.2 vs. 110.9 ± 5.8°, respectively, <i>p</i> = 0.001). During stretching, FT displayed greater fascicle elongation compared to FNT at the medial (+1.67 ± 0.37 vs. +1.28 ± 0.22 cm, respectively, <i>p</i> = 0.048) and the distal part (+1.84 ± 0.67 vs. +0.97 ± 0.97 cm, respectively, <i>p</i> = 0.013), larger change in joint angle and muscle tendon junction displacement (MTJ) (<i>p</i> < 0.001). Muscle thickness was similar in both groups (<i>p</i> > 0.053). Ankle dorsiflexion angle significantly correlated with fascicle elongation at the distal part of GM (<i>r</i> = −0.638, <i>p</i> < 0.01) and MTJ displacement (<i>r </i>= −0.610, <i>p</i> < 0.05). Collectively, FT had greater fascicle elongation at the medial and distal part of GM and greater MTJ displacement during stretching than FNT of similar age. |
| topic |
youth fascicle length muscle thickness maturation stretching exercises musculotendinous junction ultrasound |
| url |
https://www.mdpi.com/2075-4663/8/3/29 |
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