Assessing hopping developmental level in childhood using wearable inertial sensor devices

Area of Science:

• Motor development and biomechanics
• Applied kinesiology and sports science

Background:

• Assessing children's movement skills is crucial for understanding motor development.
• Current subjective assessments limit objective analysis of movement performance.
• Integrating quantitative methods can enhance understanding of developmental changes.

Purpose of the Study:

• To investigate the utility of inertial sensors for evaluating developmental differences in hopping over distance.
• To explore the relationship between sensor-derived parameters and established motor development levels.
• To assess the potential of inertial sensor technology as an objective motor development assessment tool.

Main Methods:

• Forty children performed a hopping-over-distance task while wearing inertial sensors.
• Collected data included time durations and 3D acceleration.
• Participants were classified into different developmental levels based on the hopping developmental sequence.

Main Results:

• Specific temporal and kinematic parameters derived from inertial sensors showed significant changes across different developmental levels.
• Observed variations may be influenced by anthropometry and prior motor experience.
• Inertial sensor data effectively described hopping performance and detected developmental variations.

Conclusions:

• Inertial sensors are suitable for describing hopping performance in children.
• This technology is sensitive to developmental changes in motor skills.
• Inertial sensors show promise as an in-field, user-independent tool for motor development assessment.