Abstract
The golfers with leg amputees are challenging the absence of sole proprioception, decreased range of swing motion and other artefacts, which should be recognized for the purpose of training progress. The aim of this study is to determine the kinetics and kinematics differences in golf swing across the healthy, one leg and two legs amputee golfers.
The participants consisted of two men and one women at professional or amateur level with different degree of disability. Each participant were taped by 3D markers and performed five golf swings with the iron 6.
The intraclass corelation coefficient (ICC) did not vary between individuals, just each participant had his specific positions with lower ICC (higher movement variability) see and the ICC values did not showed any relationship between the level of amputation and movement variability. The Kendal rank correlation showed significant relationship between level of amputation and X factor in takeaway position (Ƭ = -0.88, p < 0.01), O factor in takeaway position (Ƭ = -0.90, p < 0.01) O factor in early follow position (Ƭ = 0.65, p < 0.01), O factor in late follow position (Ƭ = 0.62, p < 0.01), S factor in initial position (Ƭ = 0.54, p = 0.02) and S factor in takeaway position (Ƭ = -0.66, p < 0.01).
Other relationship has been showed between acceleration speed and X factor at acceleration position (Ƭ = 0.77, p < 0.01), O factor in acceleration position (Ƭ = 0.82, p < 0.01) and S factor in acceleration position (Ƭ = 0.68, p < 0.01). This relationship in complex swing parameters were accompanied by significant differences between level of amputation and body segments angles, which are important in disabled golfers.
Kinetics parameters showed significant differences between level of amputation and vertical force ratio in late follow position (Ƭ = 0.50, p = 0.02).