Coordination Dynamics of Winners and Losers in the 2015-2016 NBA Season

Presenter Type

UNO Graduate Student (Doctoral)

Major/Field of Study

Biomechanics

Other

Biomechanics

Advisor Information

alikens@unomaha.edu

Location

MBSC Ballroom Poster # 802 - G (Doctoral)

Presentation Type

Poster

Start Date

24-3-2023 9:00 AM

End Date

24-3-2023 10:15 AM

Abstract

During team sports, such as soccer and basketball, inter-team team coordination dynamics (TCD), the dynamics of the interplay between members of a team, contain rich information about landmark game events. Past studies investigated inter-team TCD using analyses that quantify the dynamics as stationary and cyclical. However, the interactions that are nested in multiple scales (inter-individual, intra-team, inter-team) induce scale-variant, nonstationary inter-team TCD. Assuming periodicity in inter-team TCD could obscure the observation of the scale-variant patterns of inter-team TCD. We hypothesized that inter-team TCD in team sports (basketball) are multiscale in nature, generating different coordination dynamics at different scales. We also hypothesize that the inter-team TCD would differ due to critical constraints such as point value (2 points, 3 points) and scoring team (winner, loser). Inter-team TCD was quantified by computing the continuous relative phase (CRP) between the centroids of players’ coordinates of both teams on both long and short axis of the basketball court. Linear mixed effect models revealed that there were fixed effects of linear, quadratic, cubic trend of time scales, point value, scored team, and the higher order interactions among them. On the long axis, the simple slope of the CRP on the quadratic and cubic trend of time scale was steeper when 3-point shots were made compared to when 2-point shots were made (both p < .001). The simple slope of the CRP on the quadratic trend of time scale was steeper for loser team than for the winner team (p < .001). Also, the simple slope of the CRP on linear trend of time scale when 3-point shots were made was steeper in the winner team relative to the loser team (p < .001). On the short axis, the mean CRP of the winner team when 2-point shots were made was greater than when 3-point shots were made (p < .001). Consistent with our hypothesis, CRP seem to depend on the time scale it is observed, point value, and scoring team. The different interaction between the two teams due to the constraints indicate that the inter-team TCD in invasion team sports is driven by the context of the game, resulting in nonstationary, multiscale nature of inter-team TCD.

Scheduling

9:15-10:30 a.m., 10:45 a.m.-Noon, 1-2:15 p.m., 2:30 -3:45 p.m.

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COinS
 
Mar 24th, 9:00 AM Mar 24th, 10:15 AM

Coordination Dynamics of Winners and Losers in the 2015-2016 NBA Season

MBSC Ballroom Poster # 802 - G (Doctoral)

During team sports, such as soccer and basketball, inter-team team coordination dynamics (TCD), the dynamics of the interplay between members of a team, contain rich information about landmark game events. Past studies investigated inter-team TCD using analyses that quantify the dynamics as stationary and cyclical. However, the interactions that are nested in multiple scales (inter-individual, intra-team, inter-team) induce scale-variant, nonstationary inter-team TCD. Assuming periodicity in inter-team TCD could obscure the observation of the scale-variant patterns of inter-team TCD. We hypothesized that inter-team TCD in team sports (basketball) are multiscale in nature, generating different coordination dynamics at different scales. We also hypothesize that the inter-team TCD would differ due to critical constraints such as point value (2 points, 3 points) and scoring team (winner, loser). Inter-team TCD was quantified by computing the continuous relative phase (CRP) between the centroids of players’ coordinates of both teams on both long and short axis of the basketball court. Linear mixed effect models revealed that there were fixed effects of linear, quadratic, cubic trend of time scales, point value, scored team, and the higher order interactions among them. On the long axis, the simple slope of the CRP on the quadratic and cubic trend of time scale was steeper when 3-point shots were made compared to when 2-point shots were made (both p < .001). The simple slope of the CRP on the quadratic trend of time scale was steeper for loser team than for the winner team (p < .001). Also, the simple slope of the CRP on linear trend of time scale when 3-point shots were made was steeper in the winner team relative to the loser team (p < .001). On the short axis, the mean CRP of the winner team when 2-point shots were made was greater than when 3-point shots were made (p < .001). Consistent with our hypothesis, CRP seem to depend on the time scale it is observed, point value, and scoring team. The different interaction between the two teams due to the constraints indicate that the inter-team TCD in invasion team sports is driven by the context of the game, resulting in nonstationary, multiscale nature of inter-team TCD.