Morphofunctional upper limb asymmetries in young tennis players: the role of maturity status

Lemos, Elisa Cristina; Ferreira, Lucas Garcia; Dittrich, Naiandra; Teixeira, Anderson Santiago; Lucas, Ricardo Dantas de

doi:10.1007/s12662-019-00607-z

Cited by 6 publications

(7 citation statements)

References 30 publications

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“…Tantos en los sujetos del presente estudio como en otras muestras de jóvenes tenistas se hallaron asimetrías en miembros superiores, incluso en sujetos con un EM negativo (Lemos et al, 2019;Rogowski et al, 2008). Estos resultados no concuerdan con las conclusiones de trabajos anteriores que indican que el entrenamiento de fuerza no provoca hipertrofia muscular en preadolescentes, debido a los bajos niveles de andrógenos circulantes en esta población (Ozmun, et al, 1993;Ramsay et al, 1989).…”

Section: Discussionunclassified

“…Además, es poco probable que los resultados hubieran sido sustancialmente diferentes con el uso de otros métodos debido a la correlación altamente significativa entre el AIB y la ecuación de Moore et al (2015) con los métodos de referencia, como ya se indica en la sección de métodos. Teniendo en cuenta la bibliografía previa de deportes de raqueta que estudia las asimetrías, futuros estudios en padelistas podrían, además de evaluar la composición corporal de padelistas mediante BIA, utilizar métodos que proporcionen información analítica de las asimetrías, basados en medidas antropométricas (Lemos et al, 2019;Rogowski et al, 2008) o en densitometría mineral (Sanchis-Moysi et al, 2016). También sería interesante incluir variables como la fecha de inicio en la práctica del deporte de naturaleza asimétrica o la relación entre el número de horas de entrenamiento a la semana y la magnitud de las asimetrías, tal y como han hecho otros autores expertos en la materia (Ireland et al, 2014;Sanchis-Moysi et al, 2010).…”

Section: Discussionunclassified

“…La naturaleza asimétrica de los deportes de raqueta ha dado lugar a numerosos estudios que analizan las diferencias en los miembros superiores, concluyendo la mayor parte que estos deportes promueven el desarrollo temprano de asimetrías debido a la hipertrofia muscular del miembro superior dominante (Sanchis-Moysi et al, 2010;Sanchis-Moysi et al, 2016). Los deportistas de raqueta muestran diferencias entre el miembro superior dominante y el no dominante en volumen (Rogowski et al, 2008), en circunferencias segmentales (Lemos et al, 2019), en la masa magra (Filipcic et al, 2016;Sanchis-Moysi et al, 2010), en la densidad mineral ósea (Haapasalo et al, 1998;Sanchis-Moysi et al, 2010), en el contenido mineral óseo y en el área ósea (Sanchis-Moysi et al, 2010). Estas asimetrías parecen ocurrir en edades tempranas, incluso antes de la etapa de crecimiento rápido definida por la etapa de velocidad máxima de crecimiento en altura (o edad de crecimiento pico en altura) (Rogowski et al, 2008) y dependen, entre otros factores, del número de horas semanales de entrenamiento (Haapasalo et al, 1998;Sanchis-Moysi et al, 2010) o de la edad a la que se inició la práctica deportiva (Ireland et al, 2014).…”

Section: Introductionunclassified

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Asimetría entre los miembros superiores en jóvenes padelistas de competición

Delgado-García

Vanrenterghem²,

Molina-García³

et al. 2022

RIMCAFD

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Existe escasa literatura sobre las asimetrías en el pádel, un deporte de naturaleza asimétrica. Para estudiar el desarrollo de asimetrías en este deporte se evaluó, con bioimpedancia, la masa magra de ambos miembros superiores de 96 jugadores de pádel jóvenes y de 76 esquiadores (grupo control) y se calculó el índice de simetría. Los jugadores de pádel tuvieron una asimetría entre ambos miembros superiores mayor que los esquiadores, cuando se consideró toda la muestra (7.2 ± 5 % vs. 1.4 ± 3.2 %; p < 0.001), en jugadores con un estado de madurez negativo (5,7 ± 3,2 % vs. 1,5 ± 3,8 %; p < 0,001) y en aquellos con un estado de madurez positivo (8,3 ± 5,8 % vs. 1,3 ± 2,4 %; p < 0,001). Este estudio revela que el pádel genera asimetrías de masa magra en los miembros superiores, incluso antes de la edad de crecimiento pico.

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Section: Discussionunclassified

Section: Introductionunclassified

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Asimetría entre los miembros superiores en jóvenes padelistas de competición

Delgado-García

Vanrenterghem²,

Molina-García³

et al. 2022

RIMCAFD

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“…There were 33 males and 11 females in the control group. 3 The age is (23.1±4.5) years old. The age is (23.5±4.4) years old.…”

Section: Methods General Informationmentioning

confidence: 99%

Responses of Tai Chi in Upper Limb Sports Injuries Rehabilitation on Young People

2022

Rev Bras Med Esporte

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Introduction Practicing sports can strengthen the body both physically and mentally. Although Tai Chi can help injured athletes to recover quickly and shorten the return to sports training and competition, there are still no detailed studies about its effectiveness in lower limb injuries in young people. Objective Analyze the effects of Tai Chi in upper limb sports injuries rehabilitation on young people. Methods 91 patients with sports injuries are selected and randomly divided into a control group (n=44) and an experimental group (n=47). The control group received regular exercises for rehabilitation, while the experimental group used Tai Chi exercises. Mathematical statistics are used to analyze the effects before and after the activities. Results There are considerable statistical differences in the effects of exercise on the two groups of patients. Conclusion Tai Chi exercise can help young people recover from upper limb sports injuries. Evidence level II; Therapeutic Studies - Investigating the results.

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“…These differences in the timing and tempo of maturation impact both physical and psychological development 63 , Therefore, the maturity status has been suggested as an adjunct to the chronological age to better understand the physical performance development and fluctuations in injury risk of youth athletes 35 . Some cross-sectional studies have investigated the association of maturation on several measures of physical performance (i.e., speed, COD, jumping, or upper body power) 29,46,47 , showing that, in youth tennis players, early maturing boys and girls generally perform better. However, the information regarding maturity-associated variations in potential lower extremity injury risk factors (e.g., hip ROM, dynamic balance and muscle strength) is scarce.…”

Section: Introductionmentioning

confidence: 99%

The Association Between Chronological Age and Maturity Status on Lower Body Clinical Measurements and Asymmetries in Elite Youth Tennis Players

López-Valenciano

Ayala

Croix

et al. 2022

Sports Health: A Multidisciplinary Approach

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Background: Tennis is one of the most popular sports among youths. At elite levels, a notable increase in injury incidence and a temporary decline in performance may occur when children progress through puberty. However, limited research has explored maturity-associated variations in clinical measurements suggested as predictors of injury and tennis performance in elite youth players. Therefore, the main purpose of this study was to analyze the association between chronological age and maturity status on several measures of neuromuscular capability and physical performance as well as bilateral (interlimb) asymmetries in elite youth tennis players. Hypothesis: Youth tennis players around peak height velocity (PHV) will show higher growth-related impairments or deficits in measures of neuromuscular capability and physical performance than their less (pre-PHV) and more (post-PHV) mature counterparts irrespective of sex. Level of evidence: Level 4. Methods: A total of 68 male (age, 13.7 ± 1.1 years; height, 162.4 ± 9.4 cm; body mass, 51.4 ± 10.3 kg [Mean values ± SD]) and 60 female (age, 13.6 ± 1.1 years; height, 162.8 ± 7.2 cm; body mass, 52.7 ± 7.5 kg [Mean values ± SD]) elite youth tennis players from 2 different age groups (under 13 [U13] and under 15 [U15]) and maturity status (pre-PHV, around PHV, and post-PHV), were tested during national training camps. Tests included the Y Balance Test, isometric hip abduction and adduction strength, hip ranges of motion (ROMs), and countermovement jump (CMJ) height. Bayesian analysis was used to establish any significant between-group differences. Results: Only dynamic balance (in boys; Bayesian factor [BF10] = 88.2) and jump height (in both boys and girls; BF10 >100) were significatively associated with chronological age, whereby the U15 group showed lower Y Balance Test reach distances (−6%; standardized effect size δ = 0.62) but higher CMJ height scores (+18%; δ = 0.73) than the U13 group. Although boys jump higher (+11%; δ = 0.62) and were stronger in isometric hip adduction strength (+14%; δ = 0.92) than girls, the latter had greater hip internal ROM values (+15%; δ = 0.75). Furthermore, relevant maturity-associated effects (BF10 = 34.6) were solely observed for the CMJ test in boys, with the most mature players demonstrating higher jump height scores (+12%; δ = 0.93). Finally, a significant percentage (>25%) of tennis players, independent of sex, demonstrated bilateral asymmetries in hip ROM, hip strength, and jump height values. Conclusion: The findings of this study show that in U13 and U15 male and female tennis players, there were neither positive nor negative maturity-associated variations in the clinical measurements analyzed (with the exception of jump height in male players). The high proportion of tennis players showing bilateral asymmetries in dynamic balance, hip ROM, and strength and jump performance highlight the need of future studies to analyze these factors in relation to unilateral tennis-specific adaptations in the musculoskeletal and sensorimotor systems. Clinical relevance: These results may help to better understand how different clinical measurements are associated with the process of growth and maturation in elite youth tennis players and may aid in the design of specific training interventions during these stages of development.

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Morphofunctional upper limb asymmetries in young tennis players: the role of maturity status

Cited by 6 publications

References 30 publications

Asimetría entre los miembros superiores en jóvenes padelistas de competición

Asimetría entre los miembros superiores en jóvenes padelistas de competición

Responses of Tai Chi in Upper Limb Sports Injuries Rehabilitation on Young People

The Association Between Chronological Age and Maturity Status on Lower Body Clinical Measurements and Asymmetries in Elite Youth Tennis Players

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