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Do judokas present differences between upper limbs for the concentric strength of the internal and external rotators of the shoulder?
- Source :
-
Isokinetics & Exercise Science . 2024, Vol. 32 Issue 3, p199-208. 10p. - Publication Year :
- 2024
-
Abstract
- BACKGROUND: Long-time judo training can lead athletes to develop upper limb asymmetry and shoulder asymmetry during force production, mainly in the action of pulling, pushing, and throwing; that requires higher strength and velocity of the internal and external rotators of the shoulders, which may also result in shoulder injury, or a decrease in judo performance. OBJECTIVE: To investigate asymmetries in concentric force of the internal and external shoulder rotators of the dominant and non-dominant upper limbs in high-level judokas at angular velocities of 60, 180, and 300∘/s. METHODS: 14 highly trained male judokas (age 24.4 ± 4.8 yrs.; body mass 87.9 ± 18.7 kg; height 1.8 ± 0.1 m). All participants performed 5 attempts of movement concentric internal and external rotation of the shoulder with 3 angular velocities (60∘/s, 180∘/s, and 300∘/s) in an isokinetic dynamometer (Cybex® Humac Norm Dynamometer CSMI, model 502140). The data were analyzed by independent t-student (discrete analysis) a statistical parametric mapping (SPM) curve (one-dimensional analysis). RESULTS: There was no difference in dominant vs. non-dominant for discrete analysis (p > 0.05). There was no difference in dominant vs. non-dominant for SPM analysis. None of the comparisons surpassed the comparison cut-off (tcrit) for the t -test (p > 0.05). CONCLUSIONS: Based on results, judokas do not present significant asymmetries in concentric force of external or internal shoulder rotators when compared to the dominant vs. the non-dominant upper limb according to discrete and one-dimensional (SPM) analysis. [ABSTRACT FROM AUTHOR]
- Subjects :
- *BIOMECHANICS
*ARM
*SKELETAL muscle
*TASK performance
*BODY mass index
*T-test (Statistics)
*RESEARCH funding
*THROWING (Sports)
*PARAMETERS (Statistics)
*PHYSICAL training & conditioning
*DESCRIPTIVE statistics
*MUSCLE strength
*MATHEMATICAL statistics
*MARTIAL arts
*SHOULDER injuries
*EXERCISE tests
*BODY movement
*MUSCLE contraction
*RANGE of motion of joints
*DISEASE risk factors
Subjects
Details
- Language :
- English
- ISSN :
- 09593020
- Volume :
- 32
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Isokinetics & Exercise Science
- Publication Type :
- Academic Journal
- Accession number :
- 178180568
- Full Text :
- https://doi.org/10.3233/IES-230073