Motor skill interventions for DCD improve motor, cognitive, and emotional outcomes, with dose (duration and frequency) influencing treatment effects and interventions of at least 9 weeks tending to be more effective¶

Claim · All claims
Evidence · 1 study (3 entries) · review r2 · q3
Currency · newest study 2019 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q3 i? Positive effects of motor intervention were reported in 85% of studies reviewed by Yu et al, and interventions improved motor, cognitive, emotional, and psychological performances. → Biotteau M 2019 q3 i? Intervention dose explained 7% of the variance of treatment effects on motor performance, with longer treatments associated with greater effectiveness; interventions lasting at least 9 weeks tended to be more effective. → Biotteau M 2019 (2) q3 i? Fifteen (88%) of the 17 studies conducting follow-up tests found sustained effects on motor performance. → Biotteau M 2019 (3)

Evidence¶

Biotteau M 2019¶

Biotteau M, Danna J, Baudou É, Puyjarinet F, Velay J-L, Albaret J-M, Chaix Y. (2019). Developmental coordination disorder and dysgraphia: signs and symptoms, diagnosis, and rehabilitation. Neuropsychiatric Disease and Treatment. https://doi.org/10.2147/NDT.S120514

q3 · i? · review · r2

The review reports Yu et al's synthesis of 66 studies (18 eligible for meta-analysis): motor skill interventions improved motor, cognitive, emotional, and psychological performances, with "Positive effects of motor intervention ... reported in 85% of the studies". No effect size is printed.

"They found that motor skill interventions were effective in improving not only the motor skills but also the cognitive, emotional, and other psychological performances of children with DCD. Positive effects of motor intervention were reported in 85% of the studies"

Biotteau M 2019 (2)¶

Biotteau M, Danna J, Baudou É, Puyjarinet F, Velay J-L, Albaret J-M, Chaix Y. (2019). Developmental coordination disorder and dysgraphia: signs and symptoms, diagnosis, and rehabilitation. Neuropsychiatric Disease and Treatment. https://doi.org/10.2147/NDT.S120514

q3 · i? · review · r2

Yu et al's review found duration and frequency influenced immediate training effects; "intervention dose explained 7% of the variance of treatment effects on motor performance", with longer treatments more effective and interventions of at least 9 weeks tending to be more effective. Variance explained is not a standardized effect size, so impact is null.

"both the duration (in minutes) and frequency (eg, 4–5 times per week) of the interventions influenced the magnitude of the immediate training effects (intervention dose explained 7% of the variance of treatment effects on motor performance, with longer treatments being associated with greater effectiveness)."

Biotteau M 2019 (3)¶

Biotteau M, Danna J, Baudou É, Puyjarinet F, Velay J-L, Albaret J-M, Chaix Y. (2019). Developmental coordination disorder and dysgraphia: signs and symptoms, diagnosis, and rehabilitation. Neuropsychiatric Disease and Treatment. https://doi.org/10.2147/NDT.S120514

q3 · i? · review · r2

The review reports sustained effects from Yu et al: "Fifteen (88%) of the 17 studies that conducted follow-up tests found sustained effects on motor performance". No effect size is printed for sustainability.

"Fifteen (88%) of the 17 studies that conducted follow-up tests found sustained effects on motor performance."

Discussion¶

Related Claims¶

• Process-oriented (bottom-up) therapies for DCD show weak or null effects, while task-oriented approaches are effective in improving motor performance — related
• Motor imagery training improves motor performance in DCD, with children showing the most severe initial motor deficits benefiting the most — a narrower finding that bears on this claim
• Teacher-supported learning scaffolds show the largest effect (ES = 0.92), and longer intervention durations yield larger effects — related
• Scaffold effects peak at 2–4 weeks of treatment and decrease dramatically for treatments lasting 9–24 weeks — reports the opposite
• DCD prevalence estimates range from 1.8% to 6.9% with a male predominance of 2:1 to 3:1, and the disorder persists into adulthood for 30–70% of those diagnosed as children — related