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Rodriguez-Perea A, Morenas-Aguilar MD, Martinez-Garcia D, Chirosa-Rios LJ, Garcia-Buendia G. Influence of trunk rotator strength on rotational medicine ball throwing performance. J Sports Med Phys Fitness 2024; 64:30-36. [PMID: 37721721 DOI: 10.23736/s0022-4707.23.15266-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
BACKGROUND The strength of the trunk musculature plays an essential role in performance. The aims of this study were to analyze the relationship between the strength of the trunk rotation muscles with rotational medicine ball throwing velocity and distance, to study differences between sex in rotational medicine ball throwing and to compare the asymmetries of trunk rotational strength and rotational medicine ball throwing. METHODS Thirty physically active college students participated on the study. Horizontal and low cable woodchop exercises were assessed with a functional electromechanical dynamometer and throwing was measured with a radar and a measuring tape. A Pearson's correlation coefficient was calculated for the relation between trunk rotational strength and rotational medicine ball throwing. Independent samples t-test was performed to determine the differences between sex in rotational medicine ball throwing and a paired samples t-test was performed to study the asymmetries. RESULTS Large and very large correlations were obtained between trunk rotational strength and rotational medicine ball throwing (r=0.68-0.79). Significant differences and a large effect size were found between males and females for all throwing velocity and throwing distance variables (P<0.05; ES>0.90) and asymmetries in performance of mean velocity throwing (P=0.003; ES=-0.60) and peak velocity throwing (P=0.025; ES=-0.43). No significant differences were found between dominant and non-dominant side in any of the trunk rotator strength assessment conditions (P>0.05). CONCLUSIONS There is a large or very large correlation between the STRM and the RMBT in all its modalities. Differences in strength were found between sexes, with no significant differences between dominant and non-dominant sides.
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Affiliation(s)
- Angela Rodriguez-Perea
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, Granada, Spain
- CTS-642 Research Group, Department Physical Education and Sports, Strength and Conditioning Laboratory, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - María D Morenas-Aguilar
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, Granada, Spain -
- CTS-642 Research Group, Department Physical Education and Sports, Strength and Conditioning Laboratory, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Darío Martinez-Garcia
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, Granada, Spain
- CTS-642 Research Group, Department Physical Education and Sports, Strength and Conditioning Laboratory, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Luis J Chirosa-Rios
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, Granada, Spain
- CTS-642 Research Group, Department Physical Education and Sports, Strength and Conditioning Laboratory, Faculty of Sport Sciences, University of Granada, Granada, Spain
| | - Gustavo Garcia-Buendia
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, Granada, Spain
- CTS-642 Research Group, Department Physical Education and Sports, Strength and Conditioning Laboratory, Faculty of Sport Sciences, University of Granada, Granada, Spain
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Rodríguez-Perea A, Morenas Aguilar MD, Escobar-Molina R, Martínez-García D, Chirosa Ríos I, Jerez-Mayorga D, Chirosa Ríos L, Janicijevic D, Reyes-Ferrada W. Strength Assessment of Trunk Rotator Muscles: A Multicenter Reliability Study. Healthcare (Basel) 2023; 11:2331. [PMID: 37628528 PMCID: PMC10454521 DOI: 10.3390/healthcare11162331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/11/2023] [Accepted: 08/16/2023] [Indexed: 08/27/2023] Open
Abstract
BACKGROUND Trunk rotator strength plays an important role in sports performance and health. A reliable method to assess these muscles with functional electromechanical dynamometer has not been described. Therefore, the objectives of this paper were (I) to explore the reliability of different strength variables collected in isokinetic and isometric conditions during two trunk rotator exercises, and (II) to determine the relationship of isometric and dynamic strength variables collected in the same exercise. METHODS A repeated measures design was performed to evaluate the reliability of the horizontal cable woodchop (HCW) and low cable woodchop (LCW) exercises. Reliability was assessed using t-tests of paired samples for the effect size, the standard error of measurement, the coefficient of variation (CV) and the intraclass correlation coefficient (ICC). The Pearson's (r) correlation coefficient was used to explore the association between isometric and isokinetic tests. RESULTS HCW exercise is more reliable than LCW exercise in assessing trunk rotator muscles. The strength manifestation that should be used is the average strength, and the most reliable evaluation was the HCW at 0.40 m·s-1 concentric (ICC = 0.89; CV = 10.21%) and eccentric (ICC = 0.85; CV = 9.33%) contraction and the dynamic condition that most correlated with the isometric was LWC at 0.50 m·s-1 (r = 0.83; p < 0.01). CONCLUSION HCW is a reliable exercise to measure trunk rotator muscles.
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Affiliation(s)
- Angela Rodríguez-Perea
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, 18071 Granada, Spain; (A.R.-P.); (M.D.M.A.); (R.E.-M.); (D.M.-G.); (I.C.R.); (L.C.R.)
- Strength & Conditioning Laboratory, CTS-642 Research Group, Department Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain
| | - María Dolores Morenas Aguilar
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, 18071 Granada, Spain; (A.R.-P.); (M.D.M.A.); (R.E.-M.); (D.M.-G.); (I.C.R.); (L.C.R.)
- Strength & Conditioning Laboratory, CTS-362 Research Group, Department Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain;
| | - Raquel Escobar-Molina
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, 18071 Granada, Spain; (A.R.-P.); (M.D.M.A.); (R.E.-M.); (D.M.-G.); (I.C.R.); (L.C.R.)
| | - Darío Martínez-García
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, 18071 Granada, Spain; (A.R.-P.); (M.D.M.A.); (R.E.-M.); (D.M.-G.); (I.C.R.); (L.C.R.)
| | - Ignacio Chirosa Ríos
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, 18071 Granada, Spain; (A.R.-P.); (M.D.M.A.); (R.E.-M.); (D.M.-G.); (I.C.R.); (L.C.R.)
- Strength & Conditioning Laboratory, CTS-642 Research Group, Department Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain
| | - Daniel Jerez-Mayorga
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, 18071 Granada, Spain; (A.R.-P.); (M.D.M.A.); (R.E.-M.); (D.M.-G.); (I.C.R.); (L.C.R.)
- Strength & Conditioning Laboratory, CTS-642 Research Group, Department Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain
- Exercise and Rehabilitation Sciences Institute, School of Physical Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello, Santiago 7591538, Chile;
| | - Luis Chirosa Ríos
- Department of Physical Education and Sport, Faculty of Sports Sciences, University of Granada, 18071 Granada, Spain; (A.R.-P.); (M.D.M.A.); (R.E.-M.); (D.M.-G.); (I.C.R.); (L.C.R.)
- Strength & Conditioning Laboratory, CTS-642 Research Group, Department Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain
| | - Danica Janicijevic
- Strength & Conditioning Laboratory, CTS-362 Research Group, Department Physical Education and Sports, Faculty of Sport Sciences, University of Granada, 18071 Granada, Spain;
- Department of Sports Sciences and Physical Conditioning, Faculty of Education, Universidad Católica de la Santísima Concepción, Concepción 4070129, Chile
- Faculty of Health Sciences, Universidad Isabel I, 09003 Burgos, Spain
| | - Waleska Reyes-Ferrada
- Exercise and Rehabilitation Sciences Institute, School of Physical Therapy, Faculty of Rehabilitation Sciences, Universidad Andres Bello, Santiago 7591538, Chile;
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