Growth and muscle strength development in children with developmental coordination disorder

Abstract

Aim To assess effects of growth on lower limb maximal isometric muscle strength (MIMS) development in children with developmental coordination disorder (DCD). Method This observational study used hand‐held dynamometry to evaluate MIMS (hip abductors, flexors, extensors; knee flexors and extensors; ankle dorsiflexors) in children with DCD (n=33, 12 females, 21 males, 6–12y, mean [SD] age 9y [2y]). Regression analysis compared changes in MIMS for similar changes in growth (height or body mass) for children with DCD and typically developing children (pre‐existing database, n=183), controlling for age and sex. Results For the same height gain, the gain in muscle strength was 37.3% to 69.2% less in children with DCD compared with typically developing children, with significantly lower slopes (p‐value between <0.001–0.042) in all muscle groups tested except knee extensors and ankle dorsiflexors in females. Strength gains related to body mass gains were not different for children with DCD compared to typically developing children. Interpretation Even when growing at a similar rate, children with DCD do not develop muscle strength gains at the same rate as their typically developing peers. What this paper adds Strength gains with growth (height) may be reduced in children with developmental coordination disorder.

Implementasi Terapi Bermain (Play Dough) pada Anak Pre-School yang Menjalani Perawatan Hospitalisasi dengan Masalah Keperawatan Ansietas: Studi Kasus

“…In a hospital setting, it is necessary for a child to be conscious and in good general condition in order to play. Additionally, patients should have free range of motion and muscle strength of 5, as stated by Demers et al (2020). Suboptimal muscle strength and range of motion can increase the risk of injury and complications in children.…”

Children with Poor Motor Skills Have Lower Health-Related Fitness Compared to Typically Developing Children

“…In addition, several studies reported lower muscle strength among children with p-DCD [11,16,19]. Importantly, children with p-DCD had less gains in muscle strength with growth in height than TD children [48], which might indicate that the gap between children with p-DCD and their peers becomes larger when they grow older.…”

Efectos de 52 semanas de un programa de ejercicio físico sobre la velocidad y fuerza muscular de jugadores rusos de baloncesto de entre 12 a 13 años. Ensayo Controlado Aleatorizado (Effects of 52 weeks of a physical exercise program on the speed and muscle strength of Russian basketball players aged 12 to 13 years. Randomized Controlled Trial)

“…En relación con los hallazgos mencionados, se ha establecido que la riqueza motriz contribuye al fortalecimiento del sistema neuromuscular, donde la coordinación intra e intermuscular asociada a movimientos de potencia desempeña un papel crucial en la regulación eficaz de todos los movimientos corporales, lo que a su vez incide en el nivel de fatiga durante las actividades deportivas ( (Demers et al, 2020;Polevoy et al, 2024a;Polevoy et al, 2024b;. En este contexto, las mejoras observadas en los saltos horizontal y vertical pueden atribuirse a la optimización del ciclo acortamiento-estiramiento, relacionado específicamente con el entrenamiento pliométrico (Aztarain-Cardiel et al, 2022;Ramirez-Campillo et al, 2022;Kurt et al, 2023), siendo las manifestaciones de fuerza muscular en función de la potencia anaeróbica desarrollada a mediano y largo plazo elementos determinantes para la relación fuerza-velocidad (Douma-van Riet et al, 2012;Steenman et al, 2016).…”

“…Finalmente, estos resultados corroboran lo ampliamente documentado por la literatura en cuanto a la relevancia práctica de generar estímulos adecuados de fuerza-velocidad en edades tempranas. Esto se percibe tanto como medio de prevención para diversas patologías como un método para asegurar un desarrollo motor óptimo que garantice un desempeño adecuado en edades adultas (Cheng et al, 2019;Demers et al, 2020;Drozdowska et al, 2022;Fang & Jiang, 2024;Giuriato et al, 2021;Rodríguez-Rosell et al, 2017;Tomkinson et al, 2018). No obstante, es importante señalar que este estudio se llevó a cabo en una única escuela en la ciudad de Kirov (Rusia).…”