Related Experiment Video
Updated: Jul 11, 2026
06:36
Biomechanical Analysis Methods to Assess Professional Badminton Players' Lunge Performance
Published on: June 11, 2019
Functional data analysis of joint coordination in the development of vertical jump performance
A J Harrison1, W Ryan, K Hayes
1Biomechanics Research Unit, University of Limerick, Limerick, Ireland. drew.harrison@ul.ie
Sports Biomechanics
|September 26, 2007
Summary
Functional data analysis effectively distinguishes motor skill development stages in children. The knee-hip joint coordination pattern proved most indicative of developmental progression in vertical jumps.
Area of Science:
- Biomechanics
- Motor Control
- Developmental Pediatrics
Background:
- Mastering complex motor skills relies on effective inter-segment coordination.
- Various methods exist for quantifying coordination, including functional data analysis (FDA).
Purpose of the Study:
- To apply FDA to analyze lower limb kinematic data in children performing a vertical jump.
- To identify which joint coordination patterns best differentiate developmental stages.
Main Methods:
- Collected lower limb kinematic data from 49 children during vertical jumps.
- Classified participants into developmental stages using established criteria.
- Smoothed joint angle-time data with B-splines and analyzed using FDA techniques like functional principal component analysis and stepwise discriminant analysis.
Main Results:
- The knee-hip joint coordination pattern was the most significant discriminator between developmental stages.
- FDA proved effective in analyzing joint coordination and time-series data.
Conclusions:
- Functional data analysis is a valuable tool for assessing motor skill development and inter-segment coordination.
- The knee-hip joint's coordination pattern is a key indicator of motor development in children's vertical jumps.
Related Concept Videos
01:09Functional Classification of Joints
Functional Classification of Joints
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An immobile...
The functional classification of joints is determined by the amount of mobility between the adjacent bones. Joints are functionally classified as a synarthrosis or immobile joint, an amphiarthrosis or slightly moveable joint, or as a diarthrosis, a freely moveable joint. Fibrous and cartilaginous joints can be functionally classified as either synarthroses or amphiarthroses, whereas all synovial joints are classified as diarthroses.
Synarthrosis
An immobile...
01:24Muscle Coordination and Action
Muscle coordination is a complex and finely tuned process essential for smooth and purposeful movements like flexion, extension, adduction, abduction, and rotation. The human body orchestrates the actions of various muscles working in concert, each with a specific role. Four functional types describe how muscles work together: agonist, antagonist, synergist, and fixator.
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement.
Agonists
Agonist muscles, often called prime movers, are the primary muscles responsible for producing a specific movement.
01:20Structural Classification of Joints
Joints, also known as articulations, are classified based on their structural characteristics, i.e., based on whether the articulating surfaces of the adjacent bones are directly connected by fibrous connective tissue or cartilage, or whether the articulating surfaces contact each other within a fluid-filled joint cavity. These differences serve to divide the joints of the body into three structural classifications.
A fibrous joint is where the adjacent bones are united by fibrous connective...
A fibrous joint is where the adjacent bones are united by fibrous connective...
01:30Three-Dimensional Force System:Problem Solving
A three-dimensional force system refers to a scenario in which three forces act simultaneously in three different directions. This type of problem is commonly encountered in physics and engineering, where it is necessary to calculate the resultant force on the system, which can then be used to predict or analyze the behavior of the object or structure under consideration.
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
To solve a three-dimensional force system, first resolve each force into its respective scalar components. Do this using...
01:30Method of Joints: Problem Solving II
Consider a truss structure with frictionless joints fixed to a wall and roller support. If a force of 150 N is applied to joint A, the forces in each member of the truss can be determined using the method of joints.
01:10Relative Motion Analysis - Acceleration
A slider-crank mechanism converts rotational motion from the crank into linear motion of the slider or vice versa. This mechanism consists of three main parts: the crank, the connecting rod, and the slider. The movement of the slider-crank is an example of general plane motion as the fluctuating angle between the crank and the connecting rod. Consider a segment AB where point A is at the end of the slider and point B is on the diametrically opposite end to point A, on a crack. The variance in...