Relationship between muscular fitness and bone health in young baseball players

Barreto, Jesus Montenegro; Vidal-Espinoza, Rubén; Campos, Rossana Gómez; Arruda, Miguel de; Alul, Luis Urzúa; Sulla-Torres, José; Cossío-Bolaños, Marco; Méndez-Cornejo, Jorge

doi:10.4081/ejtm.2021.9642

Cited by 2 publications

(2 citation statements)

References 31 publications

(28 reference statements)

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“…In fact, since the publication of the study by Mirwald et al [18], in which the BSA prediction equation is proposed in both sexes, more than 20 years have elapsed, in which it has been widely used in school [5,22,23] and sports populations [24,25,26]. Even, the same study group using the same database, made an adjustment to the initial equations, in which seated height was eliminated, and published new equations with a lower prediction error (known as Moore equations).…”

Section: Discussionmentioning

confidence: 99%

Body surface area is a predictor of maturity status in school children and adolescents

Alvear-Vasquez

Vidal-Espinoza

Gómez-Campos

et al. 2023

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Background Generally, Body surface area (BSA) changes significantly during growth and maturation. These increases portend a possible relationship between body size as determined by BSA with maturational status in children and adolescents. Objective To determine the relationship between maturity status (MS) obtained by non-invasive anthropometric methods and body surface area (BSA) in children and adolescents of both sexes in a regional population of Chile. Additionally, we sought to verify the type of linear or nonlinear relationship between MS and BSA in both sexes. Methods A descriptive (cross-sectional) study was designed in 950 children and adolescents of both sexes (539 males and 411 females). The age range ranged from 6.0 to 17.9 years. Anthropometric measurements were evaluated: body weight, standing height, sitting height. MS was assessed by means of two non-invasive anthropometric techniques. Both techniques predict peak years of growth velocity (APHV) through a regression equation for each sex. BSA (m2) was estimated by means of the Haycock equation. Results The R2 in the linear model is relatively lower (R2 = 0.80 to 0.89 in males and 0.74 to 0.66 in females) in relation to the nonlinear quadratic model (R2 = 0.81 in males and 0.76 to 0.69). The quadratic nonlinear quadratic model reflected an adequate fit (RMSE) for the data set, being in men (RMSE = 1.080 and 1.125), while in women (RMSE = 1.779 and 1.479). Conclusion BSA is positively associated with MS determined by two non-invasive methods in Chilean children and adolescents: The nonlinear quadratic model was a better fit to the data distribution. The results suggest the use of BSA as a possible predictor of maturity status in Chilean youth.

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Section: Discussionmentioning

confidence: 99%

Body surface area is a predictor of maturity status in school children and adolescents

Alvear-Vasquez

Vidal-Espinoza

Gómez-Campos

et al. 2023

Preprint

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“…Based on these studies, it was concluded that high physical activity weakens this association. However, there are many studies reporting a relationship between muscle strength and BMD 23 , 24 . These conflicting results may be due to individual differences in athletes and training protocols.…”

Section: Discussionmentioning

confidence: 99%

The bone mineral density and isokinetic knee strength in amputee soccer players

Islamoğlu

Çebi

Tosun

2023

Rev. Assoc. Med. Bras.

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SUMMARY OBJECTIVE: The aim of this study was to examine the isokinetic knee strength, H/Q ratio (%), and bone mineral density values between amputees (n=14; amputee soccer players) and healthy football players (n=14; non-amputee soccer players). METHODS: A total of 28 amputee soccer players and non-amputee soccer players participated in the study. An isokinetic dynamometer was used to determine the knee flexion/extension forces of the dominant legs of the athletes at 60, 180, and 240°/s. Bone mineral density scans were performed using dual-energy X-ray absorptiometry. RESULTS: H/Q ratio and 60º/s flexion and 180 and 240º/s flexion/extension strength (p<0.05) were found to be high (180º/s, p=0.03; 240º/s, p=0.048) in the non-amputee soccer player group. Accordingly, the bone mineral density values of the lumbar vertebra, femoral neck, proximal metaphysis of the femur (p<0.01), tibia/fibula proximal metaphysis, and tibia/fibula distal metaphysis (p<0.05) were found to be high. A correlation was observed between the 60º/s knee extension strength and tibia/fibula diaphyseal bone mineral density (p=0.025; r=0.594) and tibia/fibula distal metaphysis bone mineral density (p=0.017; r=0.623) values in the amputee soccer players group. The Z-scores of the amputee soccer players and non-amputee soccer players were in the expected range according to age (>-2). CONCLUSION: The bone mineral density, H/Q ratio, and all measured angular velocities of isokinetic strength were high in non-amputee soccer players. This finding made us think that lower extremity amputation may also be associated with losing strength. However, it was observed that the relationship between strength and bone mineral density in amputee athletes might vary according to different angular velocities. It is recommended that isokinetic strength measurement can be evaluated together with bone mineral density in athletes.

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Relationship between muscular fitness and bone health in young baseball players

Cited by 2 publications

References 31 publications

Body surface area is a predictor of maturity status in school children and adolescents

Body surface area is a predictor of maturity status in school children and adolescents

The bone mineral density and isokinetic knee strength in amputee soccer players

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