Hip Rotation Range of Motion Asymmetry in Elite Female Golfers
An Abstract of Hip Rotation Range of Motion Asymmetry in Elite Female Golfers Heather R. Gulgin Submitted as partial fulfillment of the requirements for the Doctor of Philosophy in Exercise Science The University of Toledo May 2005 The purpose of this study was to examine hip rotation ROM in elite female golfers and age-matched controls. Previous studies have shown that glenohumeral joint ER increases in the dominant arm (relative to the non-dominant arm) when participating in sports that require repetitive unilateral overhead throwing/serving motions. However, it is unknown if the lower extremities accommodate in the same way when individuals participate in repetitive motions for a particular sport skill. The current study examined hip rotation ROM anatomical limits in a passive and WB condition. Furthermore, the golfer’s hip ROM and velocities during the golf swing were analyzed. Subjects included 15 collegiate golfers (19.6 ± 1.4 yrs.) and 15 age-matched controls (20.5 ± 1.7 yrs.). Each subject was tested for passive (prone) and WB hip rotation ROM. Three trials for each measurement were made bilaterally in both internal rotation (IR) and external rotation (ER), with the mean used for analysis. Kinematic data for the WB ROM and golf swing were collected using an eight camera Motion Analysis System. Separate two-way repeated measures analysis of variance were used to compare group and side for IR and ER (significance at alpha = 0.05). The results indicated that, in general, both golfers and controls have similar hip rotation ROM. However, the golfer’s demonstrated a significant decrease in left hip passive IR relative to their right hip. Previous literature has indicated a link with side-to-side hip rotation asymmetry and low back pain. Furthermore, low back pain is the leading injury complaint among golfers, and thus the hip rotation asymmetry may be considered as a contributing factor in low back pain.
School:University of Toledo
School Location:USA - Ohio
Source Type:Master's Thesis
Keywords:golf hip rotation asymmetry
Date of Publication:01/01/2005