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Curovic I, Rhodes D, Alexander J, Harper DJ. Vertical Strength Transfer Phenomenon Between Upper Body and Lower Body Exercise: Systematic Scoping Review. Sports Med 2024:10.1007/s40279-024-02039-8. [PMID: 38743172 DOI: 10.1007/s40279-024-02039-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2024] [Indexed: 05/16/2024]
Abstract
BACKGROUND There are a myriad of exercise variations in which upper body (UB) and lower body (LB) exercises have been intermittently used. However, it is still unclear how training of one body region (e.g. LB) affects adaptations in distant body areas (e.g. UB), and how different UB and LB exercise configurations could help facilitate physiological adaptations of either region; both referred to in this review as vertical strength transfer. OBJECTIVE We aimed to investigate the existence of the vertical strength transfer phenomenon as a response to various UB and LB exercise configurations and to identify potential mechanisms underpinning its occurrence. METHODS A systematic search using the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) for Scoping Reviews protocol was conducted in February 2024 using four databases (Web of Science, MEDLINE, Scopus and CINAHL) to identify peer-reviewed articles that investigated the vertical strength transfer phenomenon. RESULTS Of the 5242 identified articles, 24 studies met the inclusion criteria. Findings suggest that the addition of UB strength training to LB endurance exercise may help preserve power-generating capacity for the leg muscle fibres. Furthermore, systemic endocrine responses to high-volume resistance exercise may beneficially modulate adaptations in precedingly or subsequently trained muscles from a different body region, augmenting their strength gains. Last, strength training for LB could result in improved strength of untrained UB, likely due to the increased central neural drive. CONCLUSIONS Vertical strength transfer existence is enabled by neurophysiological mechanisms. Future research should involve athletic populations, examining the potential of vertical strength transfer to facilitate athletic performance and preserve strength in injured extremities.
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Affiliation(s)
- Ivan Curovic
- Institute of Coaching and Performance, School of Health, Social Work and Sport, University of Central Lancashire, Preston, UK.
- , Jurija Gagarina 102/7, 11070, Belgrade, Serbia.
| | - David Rhodes
- Human Performance Department, Burnley Football Club, Burnley, UK
| | - Jill Alexander
- Institute of Coaching and Performance, School of Health, Social Work and Sport, University of Central Lancashire, Preston, UK
| | - Damian J Harper
- Institute of Coaching and Performance, School of Health, Social Work and Sport, University of Central Lancashire, Preston, UK
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Besci Ö, Akçura YD, Acinikli KY, Kağızmanlı GA, Demir K, Böber E, Kır M, Abacı A. Aromatase Inhibitors May Increase the Risk of Cardiometabolic Complications in Adolescent Boys. Pediatr Cardiol 2024; 45:228-239. [PMID: 37544952 DOI: 10.1007/s00246-023-03260-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Accepted: 07/30/2023] [Indexed: 08/08/2023]
Abstract
INTRODUCTION Aromatase inhibitors (AIs) are increasingly used in children and adolescents to augment adult height. The aim of this study was to investigate the effects AIs have on cardiac morphology, functions and their relation to several metabolic parameters in adolescent boys. METHODS Three groups matched for sex (boys, n = 67), age (median age 13.5 years), weight, height, body mass index, and puberty stages were enrolled: (i) Group 1: 23 patients using AIs (only AI (n = 6) or in combination with growth hormone (GH) (n = 17)) for at least 6 months; (ii) Group 2: 22 patients using only GH, and (iii) Group 3: 22 healthy boys. Two-dimensional, M-mode conventional Doppler and tissue Doppler examinations of the left ventricle (LV) were performed. Bioelectrical bioimpedance analyses was conducted and follicle-stimulating hormone, luteinizing hormone, total testosterone, lipid, and hemogram parameters were obtained. RESULTS Patients in Group 1 had significantly higher serum total testosterone (p < 0.001) and hemoglobin (p < 0.001) levels, fat free mass (p = 0.005), LV mass (LVM) (p = 0.002), as well as increased LV posterior wall diameter (LVPWD) (p = 0.002), interventricular septum diameter (IVSD) (p = 0.019), and myocardial systolic wave velocity (Sm) (p = 0.020) compared to the two other control groups. No significant differences were observed in terms of diastolic and systolic functions and lipid profiles (p > 0.05). There were positive correlations between total testosterone, hemoglobin levels, LVM, LVPWD and IVSD (p < 0.05). CONCLUSION Increased LVM, LVPWD, IVSD and Sm of patients receiving AI therapy in comparison to the control groups, and the significant correlations of these parameters with total testosterone and hemoglobin levels were determined as potential side effects of AIs. These findings emphasize the need of routine cardiac follow-up in patients using AIs.
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Affiliation(s)
- Özge Besci
- Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, Inciraltı-Balcova, İzmir, 35340, Turkey
| | - Yağmur Damla Akçura
- Division of Pediatric Cardiology, Faculty of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - Kübra Yüksek Acinikli
- Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, Inciraltı-Balcova, İzmir, 35340, Turkey
| | - Gözde Akın Kağızmanlı
- Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, Inciraltı-Balcova, İzmir, 35340, Turkey
| | - Korcan Demir
- Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, Inciraltı-Balcova, İzmir, 35340, Turkey
| | - Ece Böber
- Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, Inciraltı-Balcova, İzmir, 35340, Turkey
| | - Mustafa Kır
- Division of Pediatric Cardiology, Faculty of Medicine, Dokuz Eylül University, İzmir, Turkey
| | - Ayhan Abacı
- Division of Pediatric Endocrinology, Faculty of Medicine, Dokuz Eylül University, Inciraltı-Balcova, İzmir, 35340, Turkey.
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Almeida-Neto PFD, Baxter-Jones A, de Medeiros JA, Dantas PMS, Cabral BGDAT. Are there differences in anaerobic relative muscle power between upper and lower limbs in adolescent swimmers: A blinded study. SPORTS MEDICINE AND HEALTH SCIENCE 2023; 5:290-298. [PMID: 38314042 PMCID: PMC10831378 DOI: 10.1016/j.smhs.2023.09.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2022] [Revised: 09/02/2023] [Accepted: 09/06/2023] [Indexed: 02/06/2024] Open
Abstract
Success in speed swimming depends on the efficiency of the anaerobic system for the production of cellular energy, especially during muscle power production. In the adolescent athletes much is unknown with regards to the relationships between relative power of upper and lower limbs with speed swimming performance. The aim the present study was to identify differences in relative muscle power of upper and lower limbs in adolescent swimmers and relate these to speed swimming performances. Sixty adolescents, of both sexes (50% female, 50% male, 30 swimmers and 30 controls), were recruited. The relative upper limb power (ULP[W/kg]) was assessed by a medicine ball test and the relative lower limbs power (LLP[W/kg]) by a jump test on a jumping platform. Lean mass of the upper and lower limbs was assessed by dual-energy X-ray absorptiometry (DXA) (g). Sport performance was assessed during national level competition (50-m swimming time [in seconds]). Biological maturation (BM) was indexed by years from attainment of peak height velocity. ULP(W/kg) was higher than LLP(W/kg) in both groups (p < 0.05). Upper and lower limb lean mass (g) correlated significantly with ULP(W/kg) and LLP(W/kg) in both groups (p < 0.05). ULP(W/kg) and LLP(W/kg) correlated with 50-m swimming performance (s), in both sexes (p < 0.05). Advanced BM was associated with ULP(W/kg) and LLP(W/kg) in both groups (p < 0.05), and with 50-m swimming performance (s) in both sexes (p < 0.05). We concluded that ULP(W/kg) is higher than LLP (W/kg) in adolescent swimmers. Upper and lower limb lean mass and BM were both positively associated with increased ULP (W/kg) and LLP (W/kg).
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Affiliation(s)
- Paulo Francisco de Almeida-Neto
- Health Sciences Center, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
- Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
| | - Adam Baxter-Jones
- College of Kinesiology, University of Saskatchewan, Saskatoon, SK, S7N 5B2, Canada
| | - Jason Azevedo de Medeiros
- Health Sciences Center, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
- Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
| | - Paulo Moreira Silva Dantas
- Health Sciences Center, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
- Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
| | - Breno Guilherme de Araújo Tinôco Cabral
- Health Sciences Center, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
- Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
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Almeida-Neto PFD, de Medeiros JA, Jaggers JR, Ferreira ABDM, de Assis GG, Cabral BGDAT, Dantas PMS. Exercise Immunology Applied to Pediatric Sport and the Importance of Monitoring Stages of Puberty and Biological Maturation. Sports Health 2023:19417381231212481. [PMID: 37997928 DOI: 10.1177/19417381231212481] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2023] Open
Abstract
CONTEXT Exercise immunology is aimed at understanding how exercise sessions can affect the immune system in athletic subjects of different age groups. The objective of the current study was to discuss in which stage of biological maturation (BM) young athletes may be more vulnerable in relation to the immune system, and whether there is a BM range in which it is safer to perform sports training with strenuous exercise loads. EVIDENCE ACQUISITION Evidence from scientific research from several scientific disciplines (eg, immunology, sport immunology, pediatrics, sports medicine, human development) was gathered to holistically examine the main particularities of exercise immunology as applied to pediatric sport. STUDY DESIGN Narrative review. LEVEL OF EVIDENCE Level 5. RESULTS In pediatric patients, lymphoid tissue expands during puberty and involutes after puberty until it returns to pre-expansion values. This suggests that there is a specific period in which the immune system may be stronger, which may provide opportunities for strenuous exercise in pediatric athletes. However, the chronological period when puberty occurs will be determined by BM, which is the rate at which the biological systems of the human body improves. This may affect the period of lymphoid tissue expansion and, consequently, the behavior of the immune system in pediatric subjects of the same age category. CONCLUSION During puberty, there is a significant increase in the proinflammatory profile; to compensate for this, there is an expansion of lymphoid tissue that may favor the efficiency of the immune system. The period in which puberty is reached may vary according to the stages of BM. Therefore, in exercise immunology applied to pediatric sports, in addition to external and internal training loads, it is necessary to consider BM and puberty, which have been shown to be safer biomarkers than chronological age for determining immune system behavior in pediatric athletes. STRENGTH-OF-RECOMMENDATION TAXONOMY (SORT) Evidence B level 3.
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Affiliation(s)
- Paulo Francisco de Almeida-Neto
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte Brazil
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Jason Azevedo de Medeiros
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte Brazil
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Jason R Jaggers
- Department of Health and Sport Sciences, University of Louisville, Louisville, Kentucky
| | | | - Gilmara Gomes de Assis
- Department of Physiology and Pathology - São Paulo State University, Araquaquara, São Paulo, Brazil
| | - Breno Guilherme de Araújo Tinôco Cabral
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte Brazil
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Paulo Moreira Silva Dantas
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte Brazil
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
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Smits-Engelsman B, Coetzee D, Valtr L, Verbecque E. Do Girls Have an Advantage Compared to Boys When Their Motor Skills Are Tested Using the Movement Assessment Battery for Children, 2nd Edition? CHILDREN (BASEL, SWITZERLAND) 2023; 10:1159. [PMID: 37508656 PMCID: PMC10378111 DOI: 10.3390/children10071159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 06/26/2023] [Accepted: 06/29/2023] [Indexed: 07/30/2023]
Abstract
This study aims to investigate sex-related differences in raw item scores on the Movement Assessment Battery for Children, 2nd Edition (MABC-2) in a large data set collected in different regions across the world, seeking to unravel whether there is an interaction effect between sex and the origin of the sample (European versus African). In this retrospective study, a secondary analysis was performed on anonymized data of 7654 children with a mean age of 8.6 (range 3 to 16; SD: 3.4), 50.0% of whom were boys. Since country-specific norms were not available for all samples, the raw scores per age band (AB) were used for analysis. Our results clearly show that in all age bands sex-related differences are present. In AB1 and AB2, girls score better on most manual dexterity and balance items, but not aiming and catching items, whereas in AB3 the differences seem to diminish. Especially in the European sample, girls outperform boys in manual dexterity and balance items, whereas in the African sample these differences are less marked. In conclusion, separate norms for boys and girls are needed in addition to separate norms for geographical regions.
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Affiliation(s)
- Bouwien Smits-Engelsman
- Physical Activity, Sport and Recreation, Faculty of Health Sciences, North-West University, Potchefstroom 2520, South Africa
- Department of Health & Rehabilitation Sciences, Faculty of Health Sciences, Cape Town University, Cape Town 7701, South Africa
| | - Dané Coetzee
- Physical Activity, Sport and Recreation, Faculty of Health Sciences, North-West University, Potchefstroom 2520, South Africa
| | - Ludvík Valtr
- Department of Natural Sciences in Kinanthropology, Faculty of Physical Culture, Palacký University Olomouc, 771 11 Olomouc, Czech Republic
| | - Evi Verbecque
- Rehabilitation Research Centre (REVAL), Faculty of Rehabilitation Sciences, Hasselt University, Agoralaan Building A, 3590 Diepenbeek, Belgium
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de Almeida-Neto PF, Cesário TDM, Fernandes da Costa R, de Matos DG, Aidar FJ, Dantas PMS, Cabral BGDAT. Validity of the relative fat mass pediatric index (RFMp) for the analysis of body composition in physically active youths at different stages of biological maturation. J Hum Nutr Diet 2023. [PMID: 36840429 DOI: 10.1111/jhn.13161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2022] [Accepted: 02/13/2023] [Indexed: 02/26/2023]
Abstract
BACKGROUND The paediatric relative fat mass (RFMp) index was valid for analysis of percent body fat (BF%). However, the validation did not consider biological maturation (BM) stages. The present study aimed to verify the validity of the RFMp index in the estimation of BF% in children and adolescents of both sexes at different stages of BM. METHODS A cross-sectional study was conducted with a sample of 146 young (males: 64.5%. females: 35.5%. age: 13.0 ± 2.2 years) practising sports modalities. We tested the validity of four RFMp equations (1: for boys aged 8-14 years; 2: for girls aged 8-14 years; 3: for both sexes aged 8-14 years; and 4: for both sexes aged 15-19 years) to analyse BF% using dual-energy X-ray absorptiometry as a reference method. BM was analysed by peak height velocity (PHV). Thus, we created subgroups by BM stage (pre-PHV, circum-PHV and post-PHV). RESULTS Analyses of agreement between methods showed that only the RFMp-3 equation was reliable to analyse BF% in subjects of both sexes aged 8-14 years at the circum-PHV BM stage (proportion bias 95% confidence interval = -0.3 to 0.5, p = 0.7. concordance correlation coefficient = 0.3; validity = 0.9). CONCLUSIONS The RFMp equation developed for the paediatric population of both sexes aged 8-14 years was valid for predicting BF% in children and adolescents of both sexes at the Circum-PHV stage of the BM.
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Affiliation(s)
- Paulo Francisco de Almeida-Neto
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Brazil.,Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
| | | | | | - Dihogo Gama de Matos
- Cardiovascular & Physiology of Exercise Research Laboratory, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, MB, Canada
| | - Felipe J Aidar
- Department of Physical Education, Federal University of Sergipe - UFS, São Cristovão, Brazil.,Graduate Program in Master's Level at Department of Physical Education, Federal University of Sergipe - UFS, São Cristovão, Brazil.,Program of Physiological Science, Federal University of Sergipe - UFS, São Cristovão, Brazil
| | - Paulo Moreira Silva Dantas
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Brazil.,Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Breno Guilherme de Araújo Tinôco Cabral
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Brazil.,Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
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de Almeida-Neto PF, Neto RB, Medeiros I, de Oliveira FCS, de Oliveira Filho AG, de Matos DG, Dantas PMS, de Araújo Tinôco Cabral BG. Relative age effect in elite Brazilian athletes in different combat sports: an observational study. SPORT SCIENCES FOR HEALTH 2023; 19:113-121. [PMID: 36249347 PMCID: PMC9547565 DOI: 10.1007/s11332-022-01007-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Accepted: 09/15/2022] [Indexed: 11/16/2022]
Abstract
Background The relative age effect (RAE) suggests that, due to maturity, young athletes born in the first quartiles of the year may have advantages over those born in the last quartiles of the year. Thus, it is important to evaluate the RAE in different sports and to consider the particularities of the subdivisions of the sports categories. Objective To analyze the RAE in the top 20 of the Brazilian rankings in different combat sports. Methods Observational study that analyzed the national databases for the year 2019 (from categories U-11 to U-18) made publicly available by the Brazilian confederations of karate, taekwondo and fencing. We obtained data on date of birth, age category and body weight of all modalities, type of fencing competition weapon (Epee, Foie and Saber) and type of karate modality (kumite and kata) from the top 20 places in each ranking. The final sample consisted of 1,486 athletes (Age: 14.2 ± 2.3. Male-53.2%. Female-46.8%). To identify the RAE, we performed a contingency analysis and compared the results between the sexes within the same sport. Results There was RAE in the U-11, U-12, U-15 and U-17 fencing categories (p < 0.05), being higher in the female categories (p < 0.05). The RAE was higher for males in the Epee test, and similar between the sexes for the Saber and Foie tests. In karate, RAE occurred in categories U-14 and U-16 (p < 0.05), being higher in males (p < 0.05). The RAE was similar between the sexes in the kumite modality (p < 0.05). There was no RAE for the kata modality in karate (p > 0.05) and for the Taekwondo categories (p > 0.05). Conclusion The results showed the existence of a relative age effect in elite athletes ranked (top 20 places in each ranking) only for the sport of fencing and karate kumite. Graphical abstract
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Affiliation(s)
- Paulo Francisco de Almeida-Neto
- grid.411233.60000 0000 9687 399XHealth Sciences Center, CCS-UFRN, Federal University of Rio Grande do Norte, Natal, RN 59012-570 Brazil ,grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Rui Barboza Neto
- grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Iago Medeiros
- grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Fernanda Cristina Silva de Oliveira
- grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Abel Gomes de Oliveira Filho
- grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Dihogo Gama de Matos
- grid.21613.370000 0004 1936 9609Cardiovascular and Physiology of Exercise Laboratory, University of Manitoba, Winnipeg, Canada
| | - Paulo Moreira Silva Dantas
- grid.411233.60000 0000 9687 399XHealth Sciences Center, CCS-UFRN, Federal University of Rio Grande do Norte, Natal, RN 59012-570 Brazil ,grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
| | - Breno Guilherme de Araújo Tinôco Cabral
- grid.411233.60000 0000 9687 399XHealth Sciences Center, CCS-UFRN, Federal University of Rio Grande do Norte, Natal, RN 59012-570 Brazil ,grid.411233.60000 0000 9687 399XDepartment of Physical Education, DEF-UFRN, Federal University of Rio Grande do Norte, Av. Senador Salgado Filho, 3000 Campus Central, Lagoa Nova, Natal, RN 59078-970 Brazil
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Influence of advancing biological maturation in months on muscle power and sport performance in young swimming athletes. SPORT SCIENCES FOR HEALTH 2022. [DOI: 10.1007/s11332-022-01026-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Higher levels of inhibitory control are associated with superior neuromuscular performance in adolescent athletes. SPORT SCIENCES FOR HEALTH 2022. [DOI: 10.1007/s11332-021-00858-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Using artificial neural networks to help in the process of sports selection and orientation through morphological and biodynamic parameters: a pilot study. SPORT SCIENCES FOR HEALTH 2022. [DOI: 10.1007/s11332-022-00986-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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Kuo JH, Ubeda Herrera JJ, Liu CY, Lee TH, Strong C, Lin CY, Chang YH, Lin YC, Hsieh YP, Tsai MC. Relationship Between Weight Status and Self-Image Mediated by Pubertal Timing and Athletic Competence: A Cohort Study With Taiwanese Adolescents. Front Public Health 2022; 10:890751. [PMID: 35937217 PMCID: PMC9353071 DOI: 10.3389/fpubh.2022.890751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2022] [Accepted: 05/23/2022] [Indexed: 11/24/2022] Open
Abstract
Background Self-image reflects overall self-acceptance in developing adolescents. Using a representative cohort of Taiwanese youth, this study aims to explore the relationship between weight status, pubertal timing, athletic competence, and adolescent self-image. Methods Data come from the Taiwan Youth Project that comprised a longitudinal cohort of adolescents (N = 2690, 51% males, Mage = 13.3 ± 0.5 years) surveyed annually from seventh grade. Self-image was measured by perceived satisfaction with appearance and physique. Weight status was proxied by self-reported body mass index (BMI; kg/m2). Pubertal timing was defined using the Pubertal Developmental Scale, which mainly measured physical changes in puberty. Athletic competence was assessed by experiences with participation in competitive sports and self-perceived talent for sports. Linear regression analysis was applied to test for an association between BMI and self-image. In order to test for mediating roles of pubertal timing and athletic competence, Hayes' PROCESS macro on SPSS was conducted applying 5,000 bootstrap resamples with 95% confidence intervals of the indirect effect. Results BMI was inversely associated with self-image in both males (β = -0.074, [-0.095, -0.053]) and females (β = -0.095, [-0.122, -0.069]). The boot-strapped 95% confidence intervals indicated statistically significant mediating effects of pubertal timing (β = -0.008, [-0.015, -0.001]) and athletic competence (β = -0.006, [-0.011, -0.002]) in the link between BMI and self-image in females, whilst only athletic competence mediated this association (β = -0.006, [-0.009, -0.002]) in males. Moreover, BMI at baseline were also associated with long-term self-image in males (β = -0.037, [-0.057, -0.017]) and females (β = 0.132, [0.073, 0.190]). Conclusions Understanding the mediating factors may help enhance adolescents' self-image by providing guidance on healthy weight and physical activity behaviors according to different stages of pubertal progression.
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Affiliation(s)
- Jen-Hao Kuo
- School of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Josue Jaru Ubeda Herrera
- Department of Business Administration, National Cheng Kung University, Tainan, Taiwan
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chia-Yi Liu
- School of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ting-Hsuan Lee
- School of Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Carol Strong
- Department of Public Health, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chung-Ying Lin
- Institute of Allied Health Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yun-Hsuan Chang
- Institute of Genomics and Bioinformatics, College of Life Sciences, National Chung Hsin University, Taichung, Taiwan
- Health and Counseling Center, National Chung Hsing University, Taichung, Taiwan
- Institute of Gerontology, National Cheng Kung University, Tainan, Taiwan
- Institute of Behavioral Medicine, College of Medicine, National Cheng Kung University, Taiwan, Taiwan
| | - Yi-Ching Lin
- Department of Early Childhood and Family Education, College of Education, National Taipei University of Education, Taipei, Taiwan
| | - Yi-Ping Hsieh
- Department of Social Work, College of Nursing and Professional Disciplines, University of North Dakota, Grand Forks, ND, United States
| | - Meng-Che Tsai
- Department of Pediatrics, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Medical Humanities and Social Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan
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de Almeida-Neto PF, de Medeiros JA, Medeiros RMV, Baxter-Jones A, de Matos DG, Aidar FJ, Dantas PMS, de Araújo Tinoco Cabral BG. Reliability of biological maturation analyses performed by equations predicting skeletal age and peak height velocity with hand and wrist X-ray results. Am J Hum Biol 2022; 34:e23775. [PMID: 35751584 DOI: 10.1002/ajhb.23775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 06/07/2022] [Accepted: 06/08/2022] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND Hand-wrist radiography is the gold standard for the assessment of skeletal age (SA) and the assignment of biological maturation (BM) status. However, its practical use in the field is questioned, prompting the development of anthropometric equations to estimate BM. However, there is no consensus on the reliability of these equations in relation to hand-wrist X-rays. OBJECTIVE To test the reliability of the BM estimated from predictive equations with the results of hand-wrist X-rays. METHODS One-hundred forty-four young athletes (38%-males, 62%-females; 12.3 ± 1.4 years) were recruited. SA was assessed by analyzing X-rays of the hand-wrist using the Greulich-Pyle protocol. SA was predicted using the anthropometric equations of Cabral and Macêdo. By subtracting chronological age from SA, a measure of BM or biological age (BA) was computed. In addition, a BA of years from peak height velocity (PHV) was predicted using the anthropometric equations of Mirwald and Moore. RESULTS Relative to X-ray, Cabral's equations showed high reliability in estimating BM in both sexes (p < .0001) while Macêdo's equations showed substantial reliability or males (p < .0001) only. Mirwald and Moore's equations showed weak reliability (p < .05 and p = .043, respectively). CONCLUSION The prediction of SA using anthropometric equations was found to be reliable in categorizing individuals as late, synchronized, and/or early maturers in both sexes. However, the predictive equations of years from PHV only reliably categorized late and synchronized maturation stages in males and the synchronized maturers in females.
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Affiliation(s)
- Paulo Francisco de Almeida-Neto
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Brazil.,Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Jason Azevedo de Medeiros
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Brazil.,Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil.,University Center of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Radamés Maciel Vítor Medeiros
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil.,University Center of Rio Grande do Norte, Natal, Rio Grande do Norte, Brazil
| | - Adam Baxter-Jones
- College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada
| | - Dihogo Gama de Matos
- Cardiovascular & Physiology of Exercise Laboratory, University of Manitoba, Winnipeg, Manitoba, Canada
| | - Felipe J Aidar
- Program of Physical Education, Federal University of Sergipe (UFS), São Cristovão, Sergipe, Brazil.,Department of Physical Education, Federal University of Sergipe (UFS), São Cristovão, Sergipe, Brazil
| | - Paulo Moreira Silva Dantas
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Brazil.,Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Breno Guilherme de Araújo Tinoco Cabral
- Health Sciences Center, Federal University of Rio Grande do Norte, Natal, Brazil.,Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
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Bezuglov E, Emanov A, Waśkiewicz Z, Semeniuk N, Butovsky M, Shoshorina M, Baranova D, Volodina K, Morgans R. Successful Young Athletes Have Low Probability of Being Ranked Among the Best Senior Athletes, but This Is Higher When Compared to Their Less Successful Peers. Front Psychol 2022; 13:869637. [PMID: 35719603 PMCID: PMC9202474 DOI: 10.3389/fpsyg.2022.869637] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 04/11/2022] [Indexed: 01/02/2023] Open
Abstract
Background Contemporary research has shown that only a small proportion of high achieving young athletes continue to become successful senior athletes. However, there is a lack of empirical literature tracking the success of senior male and female athletes who were considered high achieving as a youth. Hypothesis Athletes of both sexes who are successful in youth categories (U18 and U20) are more likely to be successful senior athletes. Conclusion Data from 67,600 athletes were collated from the tilastopaja.org platform. The inclusion criteria for both genders were determined by top-100 ranking in the U18 and U20 age groups and progression to the top-100 as a senior athlete. Only 23.5% of successful track and field athletes (ranked in top-100) at U18 became a successful senior athlete, while 35.4% were from the U20 group. Girls ranked in the top-100 U18 and U20 categories are significantly more likely to be ranked in the top-100 as a senior when compared to boys. Although, being ranked in the top-50 at U18 and U20 significantly increases the probability of becoming a successful senior athlete when compared with less successful athletes at these age groups (p < 0.001). Notably, the majority (68.5%) of the most successful senior athletes were not ranked in the top-100 when in the U18 or U20 age groups. Only a small group of track and field athletes that are successful at U18 and U20 become successful at senior level. The most successful track and field youth athletes are significantly more likely to succeed as a senior athlete than their less successful peers, while girls are more likely to be successful than boys.
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Affiliation(s)
- Eduard Bezuglov
- Department of Sports Medicine and Medical Rehabilitation, Sechenov First Moscow State Medical University of the Ministry of Health of the Russia Federation, Moscow, Russia.,High Performance Sport Laboratory, Moscow Witte University, Moscow, Russia.,Sirius University of Science and Technology, Sochi, Russia.,Professional Football Club CSKA, Moscow, Russia
| | - Anton Emanov
- "Smart Recovery" Sports Medicine Clinic LLC, Moscow, Russia
| | - Zbigniew Waśkiewicz
- Department of Sports Medicine and Medical Rehabilitation, Sechenov First Moscow State Medical University of the Ministry of Health of the Russia Federation, Moscow, Russia.,Institute of Sport Science, Jerzy Kukuczka Academy of Physical Education, Katowice, Poland
| | | | | | - Maria Shoshorina
- Department of Sports Medicine and Medical Rehabilitation, Sechenov First Moscow State Medical University of the Ministry of Health of the Russia Federation, Moscow, Russia
| | - Daria Baranova
- Department of Sports Medicine and Medical Rehabilitation, Sechenov First Moscow State Medical University of the Ministry of Health of the Russia Federation, Moscow, Russia
| | - Kristina Volodina
- Department of Sports Medicine and Medical Rehabilitation, Sechenov First Moscow State Medical University of the Ministry of Health of the Russia Federation, Moscow, Russia
| | - Ryland Morgans
- Department of Sports Medicine and Medical Rehabilitation, Sechenov First Moscow State Medical University of the Ministry of Health of the Russia Federation, Moscow, Russia
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14
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de Almeida-Neto PF, Silva LFD, Miarka B, De Medeiros JA, de Medeiros RCDSC, Teixeira RPA, Aidar FJ, Cabral BGDAT, Dantas PMS. Influence of Advancing Biological Maturation on Aerobic and Anaerobic Power and on Sport Performance of Junior Rowers: A Longitudinal Study. Front Physiol 2022; 13:892966. [PMID: 35655957 PMCID: PMC9152257 DOI: 10.3389/fphys.2022.892966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 04/28/2022] [Indexed: 11/13/2022] Open
Abstract
Background: Researches are linking Biological Maturation (BM) with the performance of adolescent rowers from both genders. Despite this, there is still not enough information about the influence of BM advancement correlating to sports, aerobic and anaerobic performance in adolescent athletes at the sport modality rowing. Objective: Investigate the influence of Biological Maturation on sports performance and aerobic and anaerobic power in adolescent rowing athletes. Methods: A longitudinal observational study, developed over 3 years, with a sample of 52 adolescents, rowing athletes, of both genders (61% male and 39% female) mean age of 16.0 ± 0.5 years old at the start and 18.4 ± 0.5 years old at the end of the study. Analysis was performed once a year. BM was evaluated through maturational groups generated from Age Peak Height Velocity; maximum aerobic power [VO2Max (ml/kg/min)] and mean anaerobic power (Watts) through the ergometer test (indoor rowing); peak anaerobic power (Watts) through a mathematical model derived from competition time, to determine sports performance analyzed the race time during world championship tryouts. Results: The advancement of BM influenced the reduction of the test time and increase of the mean anaerobic power (Watts) in indoor rowing (η2p > 0.36, p < 0.05), as well as an improvement in performance in sports competition (η2p > 0.35, p < 0.05). However, the advancement of BM did not affect VO2Max (ml/kg/min) in young elite rowing athletes of both sexes (p > 0.05). Conclusion: Advances in biological maturation have been shown to influence the anaerobic and sports performance (reduction of the execution time in 2,000-m) of adolescent rowing athletes of both genders.
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Affiliation(s)
- Paulo Francisco de Almeida-Neto
- Health Sciences Center, Federal University of Rio Grande do Norte, Rio Grande do Norte, Brazil,Physical Education, Natal, Brazil,*Correspondence: Paulo Francisco de Almeida-Neto, ; Paulo Moreira Silva Dantas,
| | | | - Bianca Miarka
- Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | | | | | | | | | - Paulo Moreira Silva Dantas
- Federal University of Rio Grande do Norte, Natal, Brazil,Health Sciences Center, Federal University of Rio Grande do Norte, Rio Grande do Norte, Brazil,*Correspondence: Paulo Francisco de Almeida-Neto, ; Paulo Moreira Silva Dantas,
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15
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Muscle power differences between upper and lower limbs in adolescent athletes: an approach of expert researchers. SPORT SCIENCES FOR HEALTH 2022. [DOI: 10.1007/s11332-022-00928-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Discriminant factors and the relationship between anthropometry and maturation on strength performance in elite young male Brazilian Jiu-Jitsu athletes. SPORT SCIENCES FOR HEALTH 2022. [DOI: 10.1007/s11332-021-00884-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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17
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Xu Y, Wen Z, Deng K, Li R, Yu Q, Xiao SM. Relationships of sex hormones with muscle mass and muscle strength in male adolescents at different stages of puberty. PLoS One 2021; 16:e0260521. [PMID: 34855818 PMCID: PMC8638900 DOI: 10.1371/journal.pone.0260521] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2021] [Accepted: 11/11/2021] [Indexed: 11/25/2022] Open
Abstract
This study analysed the associations of sex steroids with fat-free mass (FFM) and handgrip strength in 641 Chinese boys. Serum total testosterone (TT) and oestradiol were measured by chemiluminescence immunoassay. Free testosterone (FT) and oestradiol were calculated. FFM and handgrip strength were measured by bioelectrical impedance analysis and a hand dynamometer, respectively. Generalised additive models and multiple linear regression were used to explore the relationships. A subgroup analysis was conducted in early-mid pubertal and late-post pubertal groups. Age, height, weight, physical activity, intake of dietary protein and/or stage of puberty were adjusted. TT and FT were positively related to FFM and handgrip strength, with a curvilinear relationship being detected for handgrip strength (p<0.050). This curvilinear relationship was only observed in the late-post pubertal group, suggesting a potential threshold effect (FT>11.99ng/dL, β = 1.275, p = 0.039). In the early-mid pubertal group, TT and/or FT were linearly or near-linearly related to FFM or handgrip strength (β = 0.003-0.271, p<0.050). The association between FT and FFM was stronger than that in the late-post pubertal group. This study found that serum T had different associations with muscle parameters in Chinese early-mid pubertal and late-post pubertal boys. In the late-post pubertal boys, serum T was curvilinearly related to muscle strength with a threshold effect and its link with muscle mass was weaker.
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Affiliation(s)
- Yang Xu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Zhigang Wen
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
- Department of Endocrinology, Jiangmen Central Hospital, Affiliated Jiangmen Hospital of Sun Yat-sen University, Jiangmen, Guangdong, China
| | - Kaili Deng
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Ran Li
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Qing Yu
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
| | - Su-Mei Xiao
- Department of Epidemiology, School of Public Health, Sun Yat-sen University, Guangzhou, China
- Guangdong Provincial Key Laboratory of Food, Nutrition and Health, School of Public Health, Sun Yat-sen University, Guangzhou, China
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18
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de Almeida-Neto PF, Oliveira VMM, de Matos DG, dos Santos ÍK, Baxter-Jones A, Pinto VCM, de Macêdo Cesário T, Aidar FJ, Silva Dantas PM, Cabral BGDAT. Factors related to lower limb performance in children and adolescents aged 7 to 17 years: A systematic review with meta-analysis. PLoS One 2021; 16:e0258144. [PMID: 34614024 PMCID: PMC8494314 DOI: 10.1371/journal.pone.0258144] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 09/18/2021] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND The literature identifies several factors that are associated with lower limb performance (LLP). However, there is little consensus on which factors have the major associations with LLP. OBJECTIVE Examine, analyze and summarize the scientific evidence on the factors associated with the performance of LLP in children and adolescents of both sexes aged between 7 and 17 years. DESIGN This systematic review was conducted following the Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) statement and was registered in PROSPERO. DATA SOURCES A systematic literature search of five electronic databases (i.e., SPORTDiscus, PubMed, CINAHL, Google Scholar, and SCOPUS) with date restrictions was conducted (2010 to 2021). ELIGIBILITY CRITERIA FOR SELECTING STUDIES Eligibility criteria included (i) a study published between 2010 and 2021; (ii) a research study with observational design; (iii) a study analyzing LLP; and (iv) a sample composed of young people between 7 and 17 years old (regardless of sex). ANALYSES Literature analysis was carried out in English and Portuguese between 2018 and 2021, "blindly" by two researchers. For data sorting, Rayyan® was used. Data extraction and evidence analysis were performed "blindly", using the Loney scale. The minimum items for observational studies were analyzed by the STROBE checklist. Meta-analyses were conducted based on age group (Childhood [7 to 11 Yrs] and Adolescence [12 to 17 Yrs]) and puberty stages (i.e., Prepupertal and Pubertal). The heterogeneity between the samples of the studies was assessed using the "Cochran's Q" and "I^2" statistics. Meta-regression analyses were performed to check the factors related to heterogeneity of the studies and to check the associations between chronological age and LLP. RESULTS The literature search resulted in 1,109,650 observational studies of which 39 were included in this review. Through Meta-analysis and Meta-regressions, it was possible to indicate that advancing chronological age related to increased LLP (p<0.01), and that in relation to puberty stages pubertal subjects had higher LLP than their pre-pubertal peers (p<0.01). DISCUSSION The main findings of the present systematic review suggest that as chronological age advances (childhood to adolescence), neuromuscular systems mature and this may be due to advancing puberty, which is also associated with an increase in LLP. CONCLUSION The factors associated with lower limbs performance are still inconsistent in the literature. However, advancing chronological age and stage of puberty are both associated with increased lower limbs performance. TRIAL REGISTRATION ID-PROSPERO-CRD42020137925.
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Affiliation(s)
- Paulo Francisco de Almeida-Neto
- Health Sciences Center, Department of Physical Education, Federal University of Rio Grande do Norte, DEF-UFRN, Natal, RN, Brazil
| | | | - Dihogo Gama de Matos
- Cardiovascular & Physiology of Exercise Laboratory, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, Canada
| | - Ísis Kelly dos Santos
- Health Sciences Center, Department of Physical Education, Federal University of Rio Grande do Norte, DEF-UFRN, Natal, RN, Brazil
- Post Graduate Program in Health Sciences, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Adam Baxter-Jones
- College of Kinesiology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Vanessa Carla Monteiro Pinto
- Health Sciences Center, Department of Physical Education, Federal University of Rio Grande do Norte, DEF-UFRN, Natal, RN, Brazil
| | - Tatianny de Macêdo Cesário
- Health Sciences Center, Department of Physical Education, Federal University of Rio Grande do Norte, DEF-UFRN, Natal, RN, Brazil
| | - Felipe J. Aidar
- Department of Physical Education, Federal University of Sergipe, UFS, São Cristovão, SE, Brazil
| | - Paulo Moreira Silva Dantas
- Health Sciences Center, Department of Physical Education, Federal University of Rio Grande do Norte, DEF-UFRN, Natal, RN, Brazil
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19
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DE Almeida-Neto PF, Bulhões-Correia A, DE Matos DG, DE Alcântara Varela PW, Pinto VCM, Dantas PMS, Aidar FJ, DE Araújo Tinoco Cabral BG. Relationship of Biological Maturation with Muscle Power in Young Female Athletes. INTERNATIONAL JOURNAL OF EXERCISE SCIENCE 2021; 14:696-706. [PMID: 34567375 PMCID: PMC8439692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
There is still no consensus on how biological maturation (BM) affects the muscle power of upper and lower limbs in young people. The objective was to verify associations between BM and muscle power, as well as to compare the muscle power of upper (ULP) and lower limbs (LLP) among young athletes in different stages of BM. The sample consisted of 79 female athletes (10.9 ± 1.11 years old). Regarding BM, the sample was divided into three groups: delayed BM, synchronized BM, and accelerated BM. BM was identified by subtracting chronological age from bone age (BA). BA was measured by a mathematical model based on anthropometry. The muscular power of the upper limbs was analyzed by the medicine ball launch test, and that of the lower limbs was analyzed by the countermovement jump on a force platform. BM and BA correlated with ULP (BA: r =0.74; BM: r =0.65) and LLP (BA: r = 0.50; BM: r =0.41). In the comparisons of the tests of ULP and LLP, the groups with synchronized and accelerated BM were superior to the group with delayed BM. The advance of BM is associated with the ULP and LLP, as well as the advance of the BM affects muscle power in young female athletes. This occurs due to the increase in body mass resulting from the advancement of BM, which may favor the predominance of lean body mass, assisting in the production of muscle strength.
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Affiliation(s)
- Paulo Francisco DE Almeida-Neto
- Health Sciences Center, Department of Physical Education - Federal University of Rio Grande do Norte, UFRN, Natal, RN, BRAZIL
| | - Alexandre Bulhões-Correia
- Health Sciences Center, Department of Physical Education - Federal University of Rio Grande do Norte, UFRN, Natal, RN, BRAZIL
| | - Dihogo Gama DE Matos
- Cardiovascular & Physiology of Exercise Laboratory, University of Manitoba, Winnipeg, CANADA
| | | | - Vanessa Carla Monteiro Pinto
- Health Sciences Center, Department of Physical Education - Federal University of Rio Grande do Norte, UFRN, Natal, RN, BRAZIL
| | - Paulo Moreira Silva Dantas
- Health Sciences Center, Department of Physical Education - Federal University of Rio Grande do Norte, UFRN, Natal, RN, BRAZIL
| | - Felipe J Aidar
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports - GEPEPS, Federal University of Sergipe - UFS, São Cristovão, Sergipe, BRAZIL
- Graduate Program in Master's level in Physical Education, Federal University of Sergipe - UFS, São Cristovão, Sergipe, BRAZIL
- Department of Physical Education, Federal University of Sergipe - UFS, São Cristovão, Sergipe, BRAZIL
- Graduate Program in Doctorate and Master's level in Physiology Science, Federal University of Sergipe - UFS, São Cristovão, Sergipe, BRAZIL
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20
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de Almeida-Neto PF, de Medeiros RCDSC, de Matos DG, Baxter-Jones ADG, Aidar FJ, de Assis GG, Silva Dantas PM, Cabral BGDAT. Lean mass and biological maturation as predictors of muscle power and strength performance in young athletes. PLoS One 2021; 16:e0254552. [PMID: 34252161 PMCID: PMC8274902 DOI: 10.1371/journal.pone.0254552] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2021] [Accepted: 06/28/2021] [Indexed: 11/22/2022] Open
Abstract
Background The biological maturation (BM) analyzed by peak height velocity (PHV) and bone age (BA), and lean body mass has been associated with the strength and muscle power of young athletes. However, the ability of BM (PHV and BA) and LM markers to predict muscle strength and power in young athletes remains uncertain. Objective The Aim was determine the predicting power of BM markers (PHV and BA) and LM in relation to muscle power of upper and lower limbs and muscle strength of upper limbs in adolescent athletes at puberty. Methods Ninety-two adolescent athletes (both sexes; age 12.4 ± 1.02 years) were assessed for body composition by dual-energy X-ray absorptiometry (DXA). Power of upper limbs (ULP), force handgrip (HG), vertical jump (VJ) and countermovement jump (CMJ) were recorded. BM was predicted by mathematical models to estimate PHV and BA. Multilayer artificial neural network analyses (MLP’s) were used to determine the power of prediction of LM, PHV and BA on muscle power and strength of upper- and lower-limbs of the athletes. Results LM, BA and PHV were associated with HG (r>0.74, p<0.05) and ULS (r>0.60, p<0.05) in both sexes. In both sexes BA was associated with VJ (r>0.55, p<0.05) and CMJ (r>0.53, p<0.05). LM indicated associations (r>0.60, p<0.05) with BA and with PHV (r<0.83, p<0.05) in both sexes. MLP’s analysis revealed that the LM provides > 72% of probability to predict the muscle power of upper- and lower-limbs, and the strength of the upper limbs; whereas PHV provides > 43% and bone age >64% in both female and male adolescent athletes. Conclusion We identified that, like PHV and BA, LM is a strong predictor of low cost of both upper limbs muscle strength and upper and lower limbs power in adolescent athletes.
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Affiliation(s)
- Paulo Francisco de Almeida-Neto
- Health Sciences Center—Department of Physical Education, Federal University of Rio Grande do Norte, DEF-UFRN, Natal, RN, Brazil
- Health Sciences Center, Federal University of Rio Grande do Norte, CCS-UFRN, Natal, RN, Brazil
- * E-mail: ,
| | - Rafaela Catherine da Silva Cunha de Medeiros
- Health Sciences Center—Department of Physical Education, Federal University of Rio Grande do Norte, DEF-UFRN, Natal, RN, Brazil
- Health Sciences Center, Federal University of Rio Grande do Norte, CCS-UFRN, Natal, RN, Brazil
- Department of Physical Education—State University of Rio Grande do Norte, UERN, Mossoró, RN, Brazil
| | - Dihogo Gama de Matos
- Cardiovascular & Physiology of Exercise Laboratory, Faculty of Kinesiology and Recreation Management, University of Manitoba, Winnipeg, Canada
| | | | - Felipe J. Aidar
- Department of Physical Education, Federal University of Sergipe, UFS, São Cristovão, SE, Brazil
| | - Gilmara Gomes de Assis
- Department of Molecular Biology, Gdansk University of Physical Education, Gdansk, Poland
- Department of Applied Physiology, Mossakowski Medical Research Institute, Polish Academy of Sciences, Warsaw, Poland
| | - Paulo Moreira Silva Dantas
- Health Sciences Center—Department of Physical Education, Federal University of Rio Grande do Norte, DEF-UFRN, Natal, RN, Brazil
- Health Sciences Center, Federal University of Rio Grande do Norte, CCS-UFRN, Natal, RN, Brazil
| | - Breno Guilherme de Araújo Tinôco Cabral
- Health Sciences Center—Department of Physical Education, Federal University of Rio Grande do Norte, DEF-UFRN, Natal, RN, Brazil
- Health Sciences Center, Federal University of Rio Grande do Norte, CCS-UFRN, Natal, RN, Brazil
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Assessment of Body Composition in Athletes: A Narrative Review of Available Methods with Special Reference to Quantitative and Qualitative Bioimpedance Analysis. Nutrients 2021; 13:nu13051620. [PMID: 34065984 PMCID: PMC8150618 DOI: 10.3390/nu13051620] [Citation(s) in RCA: 112] [Impact Index Per Article: 37.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/29/2021] [Accepted: 05/11/2021] [Indexed: 01/09/2023] Open
Abstract
Body composition is acknowledged as a determinant of athletic health and performance. Its assessment is crucial in evaluating the efficiency of a diet or aspects related to the nutritional status of the athlete. Despite the methods traditionally used to assess body composition, bioelectric impedance analysis (BIA) and bioelectric impedance vector analysis (BIVA) have recently gained attention in sports, as well as in a research context. Only until recently have specific regression equations and reference tolerance ellipses for athletes become available, while specific recommendations for measurement procedures still remain scarce. Therefore, the present narrative review summarizes the current literature regarding body composition analysis, with a special focus on BIA and BIVA. The use of specific technologies and sampling frequencies is described, and recommendations for the assessment of body composition in athletes are provided. Additionally, the estimation of body composition parameters (i.e., quantitative analysis) and the interpretation of the raw bioelectrical data (i.e., qualitative analysis) are examined, highlighting the innovations now available in athletes. Lastly, it should be noted that, up until 2020, the use of BIA and BIVA in athletes failed to provide accurate results due to unspecific equations and references; however, new perspectives are now unfolding for researchers and practitioners. In light of this, BIA and especially BIVA can be utilized to monitor the nutritional status and the seasonal changes in body composition in athletes, as well as provide accurate within- and between-athlete comparisons.
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de Macêdo Cesário T, de Almeida-Neto PF, de Matos DG, Wells J, Aidar FJ, da Costa RF, de Araújo Tinoco Cabral BG. Body adiposity index to analyze the percentage of fat in young men aged between 7 and 17 years. Am J Hum Biol 2021; 34:e23599. [PMID: 33763955 DOI: 10.1002/ajhb.23599] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/11/2021] [Accepted: 03/15/2021] [Indexed: 01/22/2023] Open
Abstract
BACKGROUND The body adiposity index (BAI), uses anthropometry to estimate percent body fat (%F). However, previous studies have shown that the BAI has limited accuracy for children and adolescents. OBJECTIVE We propose to develop and validate an adjusted BAI for use in male children and adolescents from 7 to 17 years of age. METHODS The sample consisted of 141 physically active male children and adolescents (age: 12.5 ± 2.14). The %F was determined by X-ray dual energy absorptometry equipment (DXA) as the standard method and by BAI, using an equation that uses height and hip circumference. Arithmetic modeling was used to adjust the structure of the BAI mathematical model. RESULTS The BAI arithmetic adjustment was successful, resulting in the mathematical model named in the present study of adjusted body adiposity index (BAIADJ ). BAI and BAIADJ correlated with DXA (r ≤ .70, p < .001). Regression analyzes indicate that, BAI (CI 95% β: [1.35; 1.90], p < .0001) and BAIADJ (CI 95% β: [1.40; 1.90], p < .0001) have the potential to estimate %F. BAI pointed out a difference in relation to DXA (p = .04). While there was no difference between BAIADJ and DXA (p = .1). There was a proportion bias of 13.2% for BAI (p < .05), but not for BAIADJ (p > .05). CONCLUSION The adjusted model of the body adiposity index proves to be an effective tool for the analysis of the fat percentage in young males. In addition, it demonstrated significant degrees of agreement and validity in relation to DXA.
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Affiliation(s)
- Tatianny de Macêdo Cesário
- Health Sciences Center, Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
| | - Paulo Francisco de Almeida-Neto
- Health Sciences Center, Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
| | - Dihogo Gama de Matos
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports-GEPEPS, The Federal University of Sergipe, UFS, São Cristovão, Sergipe, Brazil
| | - Jonathan Wells
- Population, Policy, and Practice Programme, Childhood Nutrition Research Center, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Felipe J Aidar
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports-GEPEPS, The Federal University of Sergipe, UFS, São Cristovão, Sergipe, Brazil.,Department of Physical Education, Federal University of Sergipe, UFS, São Cristovão, Sergipe, Brazil.,Federal University of Sergipe, UFS, São Cristovão, Sergipe, Brazil
| | - Roberto Fernandes da Costa
- Health Sciences Center, Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
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Almeida-Neto PF, de Matos DG, Pinto VC, Oliveira VM, Medeiros RC, Jeffreys I, Silva Dantas PM, Aidar FJ, Cabral BG. Biological age, testosterone, and estradiol as discriminating factors of muscle strength levels in young athletes. J Sports Med Phys Fitness 2021; 62:122-130. [PMID: 33615765 DOI: 10.23736/s0022-4707.21.12158-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Neuromuscular fitness can be influenced at puberty by a steroid hormones, such as testosterone (TRT) and estradiol (EST). However, more information is needed to assess the reliability between the discriminatory power of biological age (BA) markers with the discriminatory power of TRT and EST in relation to muscle strength in young athletes who are at puberty. PURPOSE Aimed to analyze BA, TRT and EST as discriminating factors of upper limb (ULS) and lower (LLS) strength levels in young athletes. METHODS The sample of 81 young athletes (54.4% female and 45.6% male; age: 11.4±1.08). Hormones were analyzed by chemiluminescence, BA markers by anthropometric variables and body composition by tetrapolar bioimpedance. ULS was verified by the medicineball launch test and LLS by the countermovement jump test on a force platform. RESULTS EST was reliable for discriminating ULS (p<0.05) and LLS (p<0.05) in females. TRT showed reliability in discriminating ULS (p<0.05) and LLS (p<0.05) in males. BA was significant in discriminating ULS (p<0.0001) in females and ULS (p=0.002) and LLS (p<0.0001) in males. BA showed significant reliability with hormonal analyzes (p<0.05). CONCLUSIONS That hormonal concentrations are reliable in discriminating ULS and LLS of young athletes of both sexes. BA was shown to be effective in discriminating ULS (in both sexes) and LLS (in males). BA showed significant reliability with hormonal analyzes (ULS and LLS in male sex; LLS for female sex).
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Affiliation(s)
- Paulo F Almeida-Neto
- Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, Brazil -
| | - Dihogo G de Matos
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports, GEPEPS, the Federal University of Sergipe, UFS, São Cristovão, Sergipe, Brazil
| | - Vanessa C Pinto
- Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, Brazil
| | - Vitória M Oliveira
- Departament of Physical Education, State University of Ceará, UECE, Fortaleza, Brazil
| | - Rafaela C Medeiros
- Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, Brazil.,Department of Physical Education, State University of Rio Grande do Norte, UERN, Mossoró, Brazil
| | - Ian Jeffreys
- Faculty of Life Sciences and Education, University of South Wales, Pontypridd, Wales, United Kingdom of Great Britain and Northern Ireland, Pontypridd, UK
| | - Paulo M Silva Dantas
- Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, Brazil
| | - Felipe J Aidar
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports, GEPEPS, the Federal University of Sergipe, UFS, São Cristovão, Sergipe, Brazil
| | - Breno G Cabral
- Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, Brazil
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24
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Bim MA, Pinto ADA, Silva DAS, Rodrigues AM, Pelegrini A. Normative values of handgrip strength in adolescents according to chronological age and sexual maturation. MOTRIZ: REVISTA DE EDUCACAO FISICA 2021. [DOI: 10.1590/s1980-65742021004421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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25
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de Almeida-Neto PF, da Silva LF, de Matos DG, Jeffreys I, Cesário TDM, Neto RB, Barbosa WDA, Aidar FJ, Dantas PMS, Cabral BGDAT. Equation for analyzing the peak power in aquatic environment: An alternative for olympic rowing athletes. PLoS One 2020; 15:e0243157. [PMID: 33332449 PMCID: PMC7746302 DOI: 10.1371/journal.pone.0243157] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 11/16/2020] [Indexed: 12/25/2022] Open
Abstract
PURPOSE To develop an equation to provide the peak power (PP) through a specific stimulus performed in an aquatic environment, as well as to correlate morphological, anthropometric and strength variables with rowing performance. METHODS The sample consisted of 16 elite young rowing athletes of both sexes (15.7 ± 1.21 years). The strength of upper limbs and lower limbs was verified. To analyze the PP, a 100-m Sprint test was performed on an indoor rowing type ergometer, and after a 72-hour wash-out, the test was repeated in an aquatic environment on a vessel equipped with a global position system. Body composition was analyzed by examining bone densitometry with an X-ray source and maturation was verified by anthropometry. RESULTS The tests for water sprint and indoor rowing showed significant reliability (ICC = 0.695; p = 0.0007). The PP aquatic showed reliability with that acquired in indoor rowing (ICC = 0.897; p<0.0001) and was related to maturation (p<0.05). The morphology, anthropometry and strength of the upper limbs were related to the sprint and peak strength in both tests (p<0.05). CONCLUSION The equation for the PP in aquatic environment presented by the present study is highly reliable with an indoor ergometer digital ergometer.
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Affiliation(s)
| | - Luíz Felipe da Silva
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Dihogo Gama de Matos
- Research Center in Sports Sciences, Health Sciences and Human Development, CIDESD, Trás dos Montes and Alto Douro University, Vila Real, Portugal
- Group of Studies and Research of Performance, Sport, Healt and Paralympic Sports GEPEPS, The Federal University of Sergipe—UFS, São Cristovão, Sergipe, Brazil
| | - Ian Jeffreys
- Faculty of Life Sciences and Education, University of South Wales, Pontypridd, Wales, United Kingdom of Great Britain and Northern Ireland
| | | | - Rui Barboza Neto
- Department of Physical Education, Federal University of Rio Grande do Norte, Natal, Brazil
| | - Wagner de Almeida Barbosa
- Department of Theoretical and Experimental Physics—Federal University of Rio Grande do Norte, UFRN, Natal, RN, Brazil
| | - Felipe J. Aidar
- Group of Studies and Research of Performance, Sport, Healt and Paralympic Sports GEPEPS, The Federal University of Sergipe—UFS, São Cristovão, Sergipe, Brazil
- Department of Physical Education, Federal University of Sergipe—UFS, São Cristovão, Sergipe, Brazil
- Graduate Program in Master’s Level at Department of Physical Education, Federal University of Sergipe—UFS, São Cristovão, Sergipe, Brazi
- Program of Physiological Science, Federal University of Sergipe—UFS, São Cristovão, Sergipe, Brazil
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26
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de Macêdo Cesário T, de Almeida-Neto PF, de Matos DG, Wells J, Aidar FJ, de Araújo Tinôco Cabral BG. Evaluation of the body adiposity index against dual-energy X-ray absorptiometry for assessing body composition in children and adolescents. Am J Hum Biol 2020; 33:e23503. [PMID: 32918370 DOI: 10.1002/ajhb.23503] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/17/2020] [Accepted: 08/19/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND It is important to clarify the association of lean and fat mass between children and adolescents considering the rising prevalence of overweight and obesity in this age group. The aim of this study was to verify the association between the body adiposity index (BAI) and dual-energy X-ray absorptiometry (DXA) methods for analyzing body composition, as well as analyzing the validity of BAI to verify the percentage of fat in children and adolescents. METHODS The sample was composed of 106 children and adolescents, 44 females (age: 11.5 ± 1.8 years) and 62 evils (13.6 ± 2.6 years). The body fat (%F) was measured using DXA and the doubly indirect BAI body fat estimation technique. RESULTS The BAI and DXA estimates of %F were strongly correlated (boys: r = .71, P < .0001; girls: r = .72, P < .0001). The linear regression analyses showed that BAI is significant to estimate the %F in total sample (P < .0001). For boys, the %F analyzes performed by BAI and DXA did not show any differences when compared (P = .2). In addition, BAI pointed out a significant proportion bias for both sexes (P < .0001), which suggests its inefficiency in the analysis of %F. CONCLUSIONS BAI and DXA correlate; however, there is low reliability and a high proportion bias for the analysis of %F by BAI.
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Affiliation(s)
- Tatianny de Macêdo Cesário
- Department of Physical Education, Federal University of Rio Grande do Norte, UFRN, Natal, Rio Grande do Norte, Brazil
| | | | - Dihogo Gama de Matos
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports - GEPEPS, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil
| | - Jonathan Wells
- Childhood Nutrition Research Centre, Population, Policy and Practice Programme, UCL Great Ormond Street Institute of Child Health, London, UK
| | - Felipe J Aidar
- Group of Studies and Research of Performance, Sport, Health and Paralympic Sports - GEPEPS, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil.,Department of Physical Education, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil.,Graduate Program in Master's level at Department of Physical Education, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil.,Program of Physiological Science, Federal University of Sergipe - UFS, São Cristovão, Sergipe, Brazil
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27
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The Effectiveness of Biological Maturation and Lean Mass in Relation to Muscle Strength Performance in Elite Young Athletes. SUSTAINABILITY 2020. [DOI: 10.3390/su12176696] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
This study aimed to identify the interactional relationships between maturation (biological age (BA)) and lean mass on strength development in young athletes from different sports. Using a cross-sectional study design, a sample of 64 young athletes (rowers, swimmers, jiu-jitsu, volleyball, soccer and tennis players) of both sexes (13.6 ± 1.17 years) were recruited. Body composition was assessed using dual energy bone densitometry with X-ray source (DEXA). Strength of upper limbs (ULS), force hand grip (HG), vertical jump (VJ) and jump against movement (CMJ) were recorded. BA was estimated from anthropometrics. BA relationships were identified with upper limb strength in all athletes, and with the lower limb strength of tennis players, only (p < 0.05). An interaction effect between lean mass and BA was found (η2p = 0.753), as was a local effect within the regression models (ƒ2 ≥ 0.33). Athletes with a higher concentration of lean mass had superior upper and lower limb strength (p < 0.05). Lean mass showed a local effect (ƒ2) greater than that associated with BA. Although maturation is related to strength development, the strength of the relationship is mitigated by the accrual of lean mass. Specifically, the local effect of lean mass on muscle strength is broader than that of maturation, especially for lower limb strength.
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