Machine Learning Approach for Pitch Type Classification Based on Pelvis and Trunk Kinematics Captured with Wearable Sensors

The large stream of data from wearable devices integrated with sports routines has changed the traditional approach to athletes’ training and performance monitoring. However, one of the challenges of data-driven training is to provide actionable insights tailored to individual training optimization....

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Main Authors: Larisa Gomaz, Celine Bouwmeester, Erik van der Graaff, Bart van Trigt, DirkJan Veeger
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Sensors
Subjects:
Online Access:https://www.mdpi.com/1424-8220/23/23/9373
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author Larisa Gomaz
Celine Bouwmeester
Erik van der Graaff
Bart van Trigt
DirkJan Veeger
author_facet Larisa Gomaz
Celine Bouwmeester
Erik van der Graaff
Bart van Trigt
DirkJan Veeger
author_sort Larisa Gomaz
collection DOAJ
description The large stream of data from wearable devices integrated with sports routines has changed the traditional approach to athletes’ training and performance monitoring. However, one of the challenges of data-driven training is to provide actionable insights tailored to individual training optimization. In baseball, the pitching mechanics and pitch type play an essential role in pitchers’ performance and injury risk management. The optimal manipulation of kinematic and temporal parameters within the kinetic chain can improve the pitcher’s chances of success and discourage the batter’s anticipation of a particular pitch type. Therefore, the aim of this study was to provide a machine learning approach to pitch type classification based on pelvis and trunk peak angular velocity and their separation time recorded using wearable sensors (PITCHPERFECT). The Naive Bayes algorithm showed the best performance in the binary classification task and so did Random Forest in the multiclass classification task. The accuracy of Fastball classification was 71%, whilst the accuracy of the classification of three different pitch types was 61.3%. The outcomes of this study demonstrated the potential for the utilization of wearables in baseball pitching. The automatic detection of pitch types based on pelvis and trunk kinematics may provide actionable insight into pitching performance during training for pitchers of various levels of play.
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spelling doaj.art-94d224fdf6ff4363aa06b00a252563e52023-12-08T15:25:42ZengMDPI AGSensors1424-82202023-11-012323937310.3390/s23239373Machine Learning Approach for Pitch Type Classification Based on Pelvis and Trunk Kinematics Captured with Wearable SensorsLarisa Gomaz0Celine Bouwmeester1Erik van der Graaff2Bart van Trigt3DirkJan Veeger4Delft Institute of Applied Mathematics, Delft University of Technology, 2628 CD Delft, The NetherlandsBioMechanical Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, 2628 CD Delft, The NetherlandsPITCHPERFECT, 4814 GA Breda, The NetherlandsBioMechanical Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, 2628 CD Delft, The NetherlandsBioMechanical Engineering, Faculty of Mechanical, Maritime and Materials Engineering, Delft University of Technology, 2628 CD Delft, The NetherlandsThe large stream of data from wearable devices integrated with sports routines has changed the traditional approach to athletes’ training and performance monitoring. However, one of the challenges of data-driven training is to provide actionable insights tailored to individual training optimization. In baseball, the pitching mechanics and pitch type play an essential role in pitchers’ performance and injury risk management. The optimal manipulation of kinematic and temporal parameters within the kinetic chain can improve the pitcher’s chances of success and discourage the batter’s anticipation of a particular pitch type. Therefore, the aim of this study was to provide a machine learning approach to pitch type classification based on pelvis and trunk peak angular velocity and their separation time recorded using wearable sensors (PITCHPERFECT). The Naive Bayes algorithm showed the best performance in the binary classification task and so did Random Forest in the multiclass classification task. The accuracy of Fastball classification was 71%, whilst the accuracy of the classification of three different pitch types was 61.3%. The outcomes of this study demonstrated the potential for the utilization of wearables in baseball pitching. The automatic detection of pitch types based on pelvis and trunk kinematics may provide actionable insight into pitching performance during training for pitchers of various levels of play.https://www.mdpi.com/1424-8220/23/23/9373baseballpitchingwearablesclassificationpitch types
spellingShingle Larisa Gomaz
Celine Bouwmeester
Erik van der Graaff
Bart van Trigt
DirkJan Veeger
Machine Learning Approach for Pitch Type Classification Based on Pelvis and Trunk Kinematics Captured with Wearable Sensors
Sensors
baseball
pitching
wearables
classification
pitch types
title Machine Learning Approach for Pitch Type Classification Based on Pelvis and Trunk Kinematics Captured with Wearable Sensors
title_full Machine Learning Approach for Pitch Type Classification Based on Pelvis and Trunk Kinematics Captured with Wearable Sensors
title_fullStr Machine Learning Approach for Pitch Type Classification Based on Pelvis and Trunk Kinematics Captured with Wearable Sensors
title_full_unstemmed Machine Learning Approach for Pitch Type Classification Based on Pelvis and Trunk Kinematics Captured with Wearable Sensors
title_short Machine Learning Approach for Pitch Type Classification Based on Pelvis and Trunk Kinematics Captured with Wearable Sensors
title_sort machine learning approach for pitch type classification based on pelvis and trunk kinematics captured with wearable sensors
topic baseball
pitching
wearables
classification
pitch types
url https://www.mdpi.com/1424-8220/23/23/9373
work_keys_str_mv AT larisagomaz machinelearningapproachforpitchtypeclassificationbasedonpelvisandtrunkkinematicscapturedwithwearablesensors
AT celinebouwmeester machinelearningapproachforpitchtypeclassificationbasedonpelvisandtrunkkinematicscapturedwithwearablesensors
AT erikvandergraaff machinelearningapproachforpitchtypeclassificationbasedonpelvisandtrunkkinematicscapturedwithwearablesensors
AT bartvantrigt machinelearningapproachforpitchtypeclassificationbasedonpelvisandtrunkkinematicscapturedwithwearablesensors
AT dirkjanveeger machinelearningapproachforpitchtypeclassificationbasedonpelvisandtrunkkinematicscapturedwithwearablesensors