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Unilateral dynamic balance assessment: The test-retest reliability of the OptoJump next drift protocol.
Journal of Bodywork and Movement Therapies 2024 January
BACKGROUND: The OptoJump Next Drift Protocol is a test designed to assess unilateral dynamic balance. Participants are required to perform a series of unilateral jumps from which left/right and forward/back displacement (Drift) is calculated.
OBJECTIVES: This investigation set out to establish the test-retest reliability of the OptoJump Next Drift Protocol.
METHOD: Twenty-six participants performed the OptoJump Next Drift Protocol on two separate occasions. Drift Area and Drift Area as a percentage of total available jump area were calculated for each leg.
RESULTS: Interclass Correlation Coefficients (ICC) indicated poor reliability for Drift Area and Drift Area as a percentage of total available jump area (right leg r = .44; left leg r = -0.20). However, 95% Limits of Agreement (LoA) suggested a stronger relationship. For Drift Area, between trial Mean Difference for the right leg was 50.87 cm2 (95% LoA = -227.57 - 328.87) and for the left leg it was 54.08 cm2 (95% LoA = -333.62 - 441.79). For Drift Area as a percentage of total available jump area, Mean Difference for the right leg was 0.56% (95% LoA = -2.44 - 3.65) and for left 0.60% (95% LoA = - 3.76-4.89).
CONCLUSIONS: Based on the 95% LoA data, the authors suggest that the OptoJump Next Drift Protocol does offer an acceptable level of reliability.
OBJECTIVES: This investigation set out to establish the test-retest reliability of the OptoJump Next Drift Protocol.
METHOD: Twenty-six participants performed the OptoJump Next Drift Protocol on two separate occasions. Drift Area and Drift Area as a percentage of total available jump area were calculated for each leg.
RESULTS: Interclass Correlation Coefficients (ICC) indicated poor reliability for Drift Area and Drift Area as a percentage of total available jump area (right leg r = .44; left leg r = -0.20). However, 95% Limits of Agreement (LoA) suggested a stronger relationship. For Drift Area, between trial Mean Difference for the right leg was 50.87 cm2 (95% LoA = -227.57 - 328.87) and for the left leg it was 54.08 cm2 (95% LoA = -333.62 - 441.79). For Drift Area as a percentage of total available jump area, Mean Difference for the right leg was 0.56% (95% LoA = -2.44 - 3.65) and for left 0.60% (95% LoA = - 3.76-4.89).
CONCLUSIONS: Based on the 95% LoA data, the authors suggest that the OptoJump Next Drift Protocol does offer an acceptable level of reliability.
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