Morphological and isokinetic strength differences: bilateral and ipsilateral variation by different sport activity

The purpose of this study was to investigate the morphological and isokinetic strength asymmetry and magnitude in young athletes. One hundred and thirty nine male subjects (soccer, floorball, non-athletes) were measured for proportion of muscle mass between upper extremities (BADΔ) and lower extremi...

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Bibliographic Details
Published in:Open medicine (Warsaw, Poland) Poland), 2019-01, Vol.14 (1), p.207-216
Main Authors: Maly, Tomas, Mala, Lucia, Bujnovsky, David, Hank, Mikulas, Zahalka, Frantisek
Format: Article
Language:English
Subjects:
Asymmetry
Body composition
Body fat
Children & youth
Exercise
Fitness performance
Human performance
Investigations
Isokinetic testing
Maladaptation
Males
Medicine
Morphology
Physical education
Physical fitness
Physical therapy
Soccer
Sports injuries
Sports medicine
Tennis
Urban schools
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Summary:The purpose of this study was to investigate the morphological and isokinetic strength asymmetry and magnitude in young athletes. One hundred and thirty nine male subjects (soccer, floorball, non-athletes) were measured for proportion of muscle mass between upper extremities (BADΔ) and lower extremities (BLDΔ). Moreover, the peak muscle torque of knee extensors (PTE) and flexors (PTF), ipsilateral (H:Q) and bilateral strength ratio (Q:Q, H:H) were measured. We found significant differences in observed parameters with respect to different sport activities (F = 13.02, p = 0.00, = 0.80). Higher values of BADΔ were observed in the non-active (0.19 ± 0.11 kg) group compared with soccer players (0.10 ± 0.11 kg). We found a lower value of BLDΔ in floorball players (0.32 ± 0.11 kg) compared with soccer players (0.58 ± 0.27 kg) and non-active boys (0.63 ± 0.28 kg). Results revealed significantly higher PTE in soccer players compared with non-active boys and floorball players and higher Q:Q ratio in soccer players (10.99 ± 7.75%) compared with non-active boys (7.47 ± 5.92%). This study revealed that there are morphological and strength asymmetries in the observed groups, which may have potential maladaptive effects (e.g. uncompensated overload of extremity) in athletes affected by specific load.
ISSN:2391-5463
2391-5463
DOI:10.1515/med-2019-0014