Developmental Changes in Upper Limb Muscle Synergies during Throwing: A Comparison between Preschoolers and Schoolers

Dataset Overview
This dataset provides comprehensive information on muscle synergies during throwing movements in 16 preschoolers (aged 3–5 years) and 9 school-aged children (aged up to 10 years). The study aims to explore developmental differences in motor control and upper limb muscle coordination. The dataset includes both participant characteristics and raw electromyographic (EMG) data collected during throwing tasks.

Data Description
The dataset consists of the following components:

Participant Characteristics
The file "Characteristics of preschoolers and schoolers.xlsx" contains demographic and performance data for all participants, including:

Ages (years): Chronological age of each participant.
Height (cm): Standing height in centimeters.
Weight (kg): Body weight in kilograms.
Gender: Gender of each participant (Male/Female).
PEDI-FSS-SC1: Pediatric Evaluation of Disability Inventory Functional Skills Scale (Self-Care, Part 1) score.
Ball-Velocity (km/h): Ball speed measured at the moment of release.
Ball-accuracy (m): Deviation of the ball's arrival position from the target center.
Data is labeled as Preschooler1–16 and Schooler1–9, enabling group-wise comparisons.
Throwing EMG Data
Raw EMG data collected during the throwing tasks are included for each participant.

The dataset includes analog EMG signals recorded at 2000 Hz from 16 upper limb muscles during the throwing task.
Each participant completed a median of 10 trials (range: 5–19).
EMG data are stored in a matrix format, where rows represent time points and columns correspond to muscle channels in the following order:
IF: Infraspinatus
SSP: Supraspinatus
LT: Lower Trapezius
MT: Middle Trapezius
UT: Upper Trapezius
DA: Anterior Deltoid
DM: Middle Deltoid
DP: Posterior Deltoid
SA: Serratus Anterior
PC: Pectoralis
BCI: Long Head of the Biceps
TLo: Long Head of the Triceps
BR: Brachioradialis
FCU: Flexor Carpi Ulnaris
ECR: Extensor Carpi Radialis Longus
LD: Latissimus Dorsi