BioMed Research International / 2014 / Article / Tab 5

Research Article

The Relationship between Independent Transfer Skills and Upper Limb Kinetics in Wheelchair Users

Table 5

Logistic regression model results for each TAI item. Odds ratio (Exp( )) is shown for the predictors that significantly contributed to predicting the TAI item scores. The Negelkerke value for each model is reported.

ItemVariables Sig.Exp( )Model results

Item 1: the subject’s wheelchair is within 3 inches of the object to which he is transferring on to.Leading (left) shoulder AveRF−2.453.55.06χ 2(2, ) = 8.72, ,
Leading (left) shoulder MaxRMRate1.323.39.07

Item 2: the angle between the subject’s wheelchair and the surface to which he is transferring to is approximately 20–45 degrees.Leading (left) shoulder MaxIRM*−16.534.29.04.00χ 2(1, ) = 9.09,

Item 6: the subject places his feet in a stable position (on the floor if possible) before the transfer.Leading (left) shoulder MaxRMRate−1.343.67.06χ 2(1, ) = 7.86,
Trailing (right) shoulder AveRM*−5.734.19.04.00χ 2(1, ) = 6.76, 

Item 7: the subject scoots to the front edge of the wheelchair seat before he transfers (i.e., moves his buttocks to the front 2/3rds of the seat).Leading (left) shoulder MaxExtenM3.913.54.06χ 2(1, ) = 4.70,
Trailing (right) elbow AveRM−13.342.96.09χ 2(2, ) = 14.78,
Trailing (right) elbow MaxRMRate−3.702.82.09

Item 9: a handgrip is utilized correctly by the leading arm (when the handgrip is in the individual’s base of support).Leading (left) shoulder MaxRMRate−1.391.62.20χ 2(4, ) = 18.29,
Leading (left) shoulder MaxIRM22.101.85.17
Leading (left) elbow MaxRMRate−4.742.21.14
Leading (left) wrist MaxRMRate7.512.83.09
Trailing (right) shoulder AveRM−9.911.43.23χ 2(2, ) = 19.92,
Trailing (right) elbow MaxRMRate*−10.384.07.04.00

Item 12: Head-hip relationship is used.Leading (left) shoulder MaxRMRate−.813.82.05χ 2(1, ) = 5.13,

Note: the predictor significantly contributed to the regression model. : unstandardized regression coefficients; Sig.: significance; Exp( ): odds ratio; Ave: average; Max: maximum; RMRate: rate of rise of resultant moment; RF: resultant force; IRM: internal rotation moment; RM: resultant moment; ExtenM: extension moment.

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