Projects | Goodminton

Overview

Role: UX Researcher + UX Designer + Developer  

Duration: Ongoing since Aug 2018  

Details: Individual Masters Project @ Georgia Tech  

Advisor: Prof. Thomas Ploetz

Problem Space: How might we create a system to help novice players learn proper footwork technique on badminton court by providing feedback?


Process

Problem Overview

  • Amateur players do not have access to coaching centers and facilities to learn proper techniques
  • No current feedback loop exists for amateur players (novice and intermediate) to strengthen their learning except for dependence on coaches
  • Bad/wrong technique can lead to severe injuries which can prove fatal in some cases
  • The current technological systems that exist are either to be used with the guidance of a coach or are targeted towards professional players
    • System which currently exist are too bulky
    • only focused on speed and agility


Research

Figure: Research Overview

Analysis


Figure: Analysis Overview


Footwork Parameter - Balance

In the upcoming figures, A is the dominant foot - the hand in which a player holds a racket and B is the non-dominant foot. O is the center of the gravity. x is the distance between the line drawn from the hip to the ground. In order to achieve perfect balance, the distance between this imaginery line and both the feet should be equal.



Figure: Balance Parameter


Body weight at the base & Split step

A player must always stand on their toes at the base as this aids in quicker movement. Split step means that when the player is on the base, before moving in any direction to pick the shuttle, they should first take a split step - i.e. make their legs a bit wider and the move.

Figure: Body weight at base


Length of consecutive steps

The length of a player's final step in any movement should be the longest. This means that A3B3 is the longest.


Figure: Length of consecutive steps


Lunging

Considering A to be the dominant feet and B to be other feet. As a player takes their final step, they must drag the non-dominant feet on it's toe to maintain balance and land on their heel for the dominant foot.


Figure: Lunging


Quantity of Steps

Number of steps taken by a player to reach from base to a point and back the base should be same. However, this number is different for each player.


Figure: Quantity of steps


Feet Direction

Both the feet must always point in the direction of the shuttle. In the figure, S is the shuttle.


Figure: Feet direction


End Steps

A player must always end their movement with the dominant feet in the front. In the figure, A is the dominant feet.


Figure: End steps parameter


Parameters that can change over time


Figure: Parameters that change over time


Feedback Interruption Points


Figure: Feedback Interruption Points


Feedback methods


Figure: Feedback Methods

Development

Setting up the data collection protocol


Figure: Data Collection Protocol

Upcoming

  • Design of interface
  • Algorithm development + evaluation of the algorithm
  • Usability Testing



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Best,