Centre for Movement, Occupation and Rehabilitation Sciences, Oxford Brookes University, Oxford, UK; University of Maia, Maia, Portugal; Research Center in Sport Sciences, Health Sciences and Human Development, Vila Real, Portugal.
Centre for Movement, Occupation and Rehabilitation Sciences, Oxford Brookes University, Oxford, UK.
Clin Biomech (Bristol). 2023 Feb;102:105904. doi: 10.1016/j.clinbiomech.2023.105904. Epub 2023 Feb 3.
Developmental coordination disorder affects approximately 6% of children, interfering with participation in physical activity and can persist through adulthood. However, no studies have investigated the neuromotor mechanisms of learning of a novel task with rhythmic cueing.
Movement Assessment Battery for Children-2nd edition was used to identify 48 children with probable developmental coordination disorder (13.9 ± 0.05 yrs., 27% male) and 37 typically developed (13.9 ± 0.10 yrs., 54% male). While instrumented with an inertial measurement unit, both groups performed a novel rhythmic stepping task and with a concurrent auditory stroop test (dual-task), underwent seven weeks of intervention with step training with rhythmic cuing and were tested for retention five weeks post-intervention.
Initially, the group with probable developmental coordination disorder had a higher variability of step timing (coefficient of variation: 0.08 ± 0.003-typically developed - 0.09 ± 0.004-probable developmental coordination disorder, p < 0.05) and a frequency of peak power spectral density further from the target 0.5 Hz (0.50 ± 0.002 Hz-typically developed - 0.51 ± 0.003 Hz-probable developmental coordination disorder, p < 0.05), and were more affected by the dual-task: power spectral density at 0.5 Hz (-7.2 ± 3.3%-typically developed - -13.4 ± 4.6%- prob_DCD, p < 0.05) and stroop test errors (6.4 ± 1.1%-typically developed - -11.1 ± 2.4%- probable developmental coordination disorder, p < 0.05). The intervention led to similar improvements in both groups in coefficient of variation of step timing (0.12 ± 0.01-Pre - 0.07 ± 0.002-Post, p < 0.05), frequency of the peak power spectral density (0.51 ± 0.005 Hz-Pre - 0.50 ± 0.001 Hz-Post, p < 0.05) and relative power spectral density bandpower (3.2 ± 0.2%-Pre - 5.9 ± 0.3%-Post, p < 0.05). All improvements were retained after five weeks post-training.
Rhythmic cueing shows strong promise for enhancing motor learning in children with probable developmental coordination disorder.
Retrospectively registered on ClinicalTrials.gov with reference: NCT03150784.
发育性协调障碍影响约 6%的儿童，干扰其参与体育活动，并可能持续到成年。然而，目前尚无研究调查具有节奏提示的新任务学习的神经运动机制。
使用儿童运动评估电池-第 2 版确定 48 名可能患有发育性协调障碍的儿童（13.9±0.05 岁，27%为男性）和 37 名发育正常的儿童（13.9±0.10 岁，54%为男性）。在使用惯性测量单元进行仪器测量的同时，两组均进行了一项新的节奏踏步任务，并同时进行了听觉斯特鲁普测试（双重任务），在七周的节奏提示踏步训练后进行了五周的保持测试。
最初，可能患有发育性协调障碍的组的步时变异性更高（变异系数：0.08±0.003-发育正常组-0.09±0.004-可能患有发育性协调障碍组，p<0.05），并且峰值功率谱密度的频率离目标 0.5Hz 更远（0.50±0.002Hz-发育正常组-0.51±0.003Hz-可能患有发育性协调障碍组，p<0.05），并且更容易受到双重任务的影响：0.5Hz 处的功率谱密度（-7.2±3.3%-发育正常组- -13.4±4.6%-可能患有发育性协调障碍组，p<0.05）和斯特鲁普测试错误（6.4±1.1%-发育正常组- -11.1±2.4%-可能患有发育性协调障碍组，p<0.05）。干预措施使两组的步时变异性系数（0.12±0.01-Pre-0.07±0.002-Post，p<0.05）、峰值功率谱密度频率（0.51±0.005Hz-Pre-0.50±0.001Hz-Post，p<0.05）和相对功率谱密度频带功率（3.2±0.2%-Pre-5.9±0.3%-Post，p<0.05）均得到类似的改善。所有改善均在训练后五周内保持。
节奏提示在增强可能患有发育性协调障碍的儿童的运动学习方面具有很大的潜力。
在 ClinicalTrials.gov 上进行回顾性注册，参考号：NCT03150784。
