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Seyedi M, Zarei M, Daneshjoo A, Rajabi R, Shirzad E, Mozafaripour E, Mohammadpour S. Effects of FIFA 11 + warm-up program on kinematics and proprioception in adolescent soccer players: a parallel‑group randomized control trial. Sci Rep 2023; 13:5527. [PMID: 37016130 PMCID: PMC10073194 DOI: 10.1038/s41598-023-32774-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Accepted: 04/02/2023] [Indexed: 04/06/2023] Open
Abstract
This study aimed to compare the effects of 8 weeks 11 + warm-up injury prevention program on kinematics and proprioception in adolescent male and female soccer players. Forty adolescent soccer players (20 males, 20 females) aged between 14-16 years old were randomly assigned into four groups. The experimental group performed the 11 + program for 8 weeks and the control group did their warm-up program. The kinematic variable in a cutting maneuver was measured using VICON motion analysis and ankle and knees' proprioception by joint position sense (JPS) was measured using a digital inclinometer. For kinematic variables only significant differences in knee valgus among females 11 + compared with female and male control groups were found (P < 0.05). Moreover, there were significant improvements in joint position sense variables in 11 + groups compared to control groups (P < 0.05). In conclusion, the 11 + program was proven to be a useful warm-up protocol in improving knee valgus and JPS among female and male adolescent soccer players. We suggest adding more training elements to the 11 + program that aimed to enhance the proper alignment of lower extremities which may consequently improve joint kinematics.
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Affiliation(s)
- Mohammadreza Seyedi
- Department of Sport Medicine, Sport Sciences Research Institute, Tehran, Iran.
| | - Mostafa Zarei
- Sport Rehabilitation and Health Department, Faculty of Sports Sciences and Health, Shahid Beheshti University, Tehran, Iran
| | - Abdolhamid Daneshjoo
- Department of Sports Injuries and Corrective Exercises, Faculty of Physical Education and Sport Science, Shahid Bahonar University of Kerman, Kerman, Iran
| | - Reza Rajabi
- Department of Health and Sport Medicine, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Elham Shirzad
- Department of Health and Sport Medicine, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Esmaeil Mozafaripour
- Department of Health and Sport Medicine, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
| | - Shadan Mohammadpour
- Department of Health and Sport Medicine, Faculty of Physical Education and Sport Sciences, University of Tehran, Tehran, Iran
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Seyedi M, Nobari H, Abbasi H, Khezri D, Oliveira R, Pérez-Gómez J, Badicu G, Afonso J. Effect of Four Weeks of Home-Based Balance Training on the Performance in Individuals with Functional Ankle Instability: A Remote Online Study. Healthcare (Basel) 2021; 9:healthcare9111428. [PMID: 34828475 PMCID: PMC8622790 DOI: 10.3390/healthcare9111428] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2021] [Revised: 10/16/2021] [Accepted: 10/21/2021] [Indexed: 12/26/2022] Open
Abstract
The purpose of the current study is to evaluate the effect of 4 weeks of home-based balance training (HBBT) on the performance of individuals with functional ankle instability (FAI) in daily activities and sports. Thirty college students diagnosed with FAI and with a mean weight of 79.8 ± 3.4 kg, height of 182.5 ± 5.1 cm, age of 23.5 ± 1.2 years, and instability score of 20 ± 2.3 were selected to participate in this study and were randomly divided by computer-generated methods into two groups: the HBBT group and the control group (CG), each consisting of 15 subjects. The HBBT group performed the program at home for 4 weeks, while the CG was non-exercise. Before and after the 4 weeks of exercise program, a form containing the foot and ankle ability measure for daily activities and sports was completed by the individuals. For data analysis, intra- and inter-group comparisons were performed using paired and independent sample t-tests, respectively, at a significance level of p ≤ 0.05. The results showed that 4 weeks of progressive HBBT were sufficient to significantly improve the measurement of the ability of ankle and foot function in individuals with FAI, even with a total volume of only 60 min per week. Accordingly, it is suggested that individuals with FAI can benefit from short-term HBBT programs, which are simple yet powerful enough to promote improvements in daily activities.
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Affiliation(s)
- Mohammadreza Seyedi
- Department of Sport Injuries and Corrective Exercises, Sport Sciences Research Institute, Tehran 1587958711, Iran;
| | - Hadi Nobari
- Department of Physical Education and Sports, University of Granada, 18010 Granada, Spain
- HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain;
- Correspondence: (H.N.); (H.A.)
| | - Hamed Abbasi
- Department of Sport Injuries and Corrective Exercises, Sport Sciences Research Institute, Tehran 1587958711, Iran;
- Correspondence: (H.N.); (H.A.)
| | - Davood Khezri
- Department of Sport Biomechanics and Technology, Sport Sciences Research Institute, Tehran 1587958711, Iran;
| | - Rafael Oliveira
- ESDRM-IPS—Sports Science School of Rio Maior–Polytechnic Institute of Santarém, 2040-413 Rio Maior, Portugal;
- Research Centre in Sport Sciences, Health Sciences and Human Development, Quinta de Prados, Edifício Ciências de Desporto, 5001-801 Vila Real, Portugal
- Life Quality Research Centre, Complexo Andaluz, Apartado 279, 2001-904 Santarém, Portugal
| | - Jorge Pérez-Gómez
- HEME Research Group, Faculty of Sport Sciences, University of Extremadura, 10003 Cáceres, Spain;
| | - Georgian Badicu
- Department of Physical Education and Special Motricity, Transilvania University of Brasov, 500036 Brasov, Romania;
| | - José Afonso
- Centre for Research, Education, Innovation and Intervention in Sport, Faculty of Sport, University of Porto, 4099-002 Porto, Portugal;
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Seyedi M, Timko MP, Sundqvist C. The distribution of protochlorophyllide and chlorophyll within seedlings of the lip1 mutant of Pea. Plant Cell Physiol 2001; 42:931-41. [PMID: 11577187 DOI: 10.1093/pcp/pce118] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The distribution of protochlorophyllide (Pchlide) and NADPH-Pchlide oxidoreductase (POR) was characterized in the epicotyls and roots of wild-type pea (Pisum sativum L. cv. Alaska) and lip1, a mutant with light-independent photomorphogenesis caused by a mutation in the COP1 locus. The upper part of the dark-grown lip1 mutant epicotyls had a high Pchlide content that decreased downward the organ. The elevated Pchlide level in lip1 seedlings was a result of the differentiation of more proplastids into Pchlide-containing plastids. The cortex cells in the lip1 epicotyl were filled with such plastids in contrast to the cortex cells of wild-type seedlings. The mutant also developed Pchlide-containing plastids in the roots, indicating the suppressing effect of the COP1 locus on development of plastids in the corresponding tissues in dark-grown wild-type plants. The distribution of Pchlide-containing plastids in dark-grown lip1 mutant stem and root was similar to the distribution of chloroplasts in irradiated wild-type plants. Both wild-type and lip1 epicotyls contained mostly short wavelength Pchlide fluorescing at 631 nm with only a small shoulder at 654 nm, which was transformed to a minute amount of chlorophyllide (Chlide) by flash irradiation. In contrast, with continuous irradiation a considerable amount of Chlide was formed especially in the lip1 epicotyls. Immunoblots indicated the presence of POR, as a 36 kDa band, in epicotyls of both dark-grown wild-type and lip1 mutant seedlings. However, lip1 stem tissue had a higher content of POR than the wild-type pea. The high content of POR was unexpected as lip1 lacked both the 654 nm fluorescing Pchlide form and the regular PLBs. In light, a significant amount of chlorophyll was formed also in the roots of the lip1 seedlings.
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Affiliation(s)
- M Seyedi
- Department of Plant Physiology, Botanical Institute, Göteborg University, Box 461, SE-405 30 Göteborg, Sweden.
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