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AuthorNajafi, Bijan
AuthorLee-Eng, Jacqueline
AuthorWrobel, James S.
AuthorGoebel, Ruben
Available date2016-11-14T09:21:29Z
Publication Date2015-06
Publication NameJournal of Sports Science and Medicine
CitationNajafi B, Lee-Eng J, Wrobel JS, Goebel R. Estimation of Center of Mass Trajectory using Wearable Sensors during Golf Swing. Journal of Sports Science & Medicine. 2015;14(2):354-363.
ISSN1303 - 2968
URIhttp://hdl.handle.net/10576/4997
URIhttp://www.jssm.org/researchjssm-14-354.xml.xml
AbstractThis study suggests a wearable sensor technology to estimate center of mass (CoM) trajectory during a golf swing. Groups of 3, 4, and 18 participants were recruited, respectively, for the purpose of three validation studies. Study 1 examined the accuracy of the system to estimate a 3D body segment angle compared to a camera-based motion analyzer (Vicon®). Study 2 assessed the accuracy of three simplified CoM trajectory models. Finally, Study 3 assessed the accuracy of the proposed CoM model during multiple golf swings. A relatively high agreement was observed between wearable sensors and the reference (Vicon®) for angle measurement (r > 0.99, random error <1.2° (1.5%) for anterior-posterior; <0.9° (2%) for medial-lateral; and <3.6° (2.5%) for internal-external direction). The two-link model yielded a better agreement with the reference system compared to one-link model (r > 0.93 v. r = 0.52, respectively). On the same note, the proposed two-link model estimated CoM trajectory during golf swing with relatively good accuracy (r > 0.9, A-P random error <1cm (7.7%) and <2cm (10.4%) for M-L). The proposed system appears to accurately quantify the kinematics of CoM trajectory as a surrogate of dynamic postural control during an athlete’s movement and its portability, makes it feasible to fit the competitive environment without restricting surface type.
SponsorAward Number NPRP 5-086-2-031 from the Qatar National Research Foundation.
Languageen
PublisherMedical Faculty of Uludag University
SubjectWearable technology
golf swing
center of mass
dynamic postural control
balance
simplified biomechanical model of human body
TitleEstimation of Center of Mass Trajectory using Wearable Sensors during Golf Swing
TypeArticle
Pagination354-363
Issue Number2
Volume Number14
dc.accessType Open Access


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