08 December 2024
: Case report 
Improving Golf Swing Kinematics in a 78-Year-Old Golfer with Lower Back Pain: A Case Report
Unusual or unexpected effect of treatment
Jonathan Grathwohl ABCDEF 1, Robert Sillevis ACDEF 1*DOI: 10.12659/AJCR.946077
Am J Case Rep 2024; 25:e946077
Table 5. K-vest swing summary.
| Data point (PGA norms) | Pre-intervention | Post-intervention |
|---|---|---|
| Transition sequence (pelvis-trunk-shoulder-hand) | Hand-Pelvis-Trunk/Shoulder | Hand-Pelvis-Trunk/Shoulder |
| Peak speed sequence (pelvis-trunk-shoulder-hand) | Pelvis-Shoulder-Trunk-Hand | Pelvis-Trunk-Shoulder-Hand |
| Peak speed (degrees/s) | Pelvis: 277Trunk: 448Shoulder: 650Hand: 1510 | Pelvis: 250Trunk: 455Shoulder: 599Hand: 1112 |
| Rotation at address (pelvis −2° to 6°) (trunk 7° to 17°) | Pelvis rotation: 7°Trunk: 6° | Pelvis rotation: −1°Trunk rotation: 12° |
| Posture at address (pelvis 12° to 27°) (trunk 34° to 45°) | Pelvis bend: 24°Trunk bend: 26° | Pelvis bend: 21°Trunk bend: 35° |
| Pelvis and trunk rotation (pelvis top −46° to −30°) (pelvis impact 35° to 50°) (trunk top −86° to −74°) (trunk impact 26° to 34°) | Pelvis top: −43°Pelvis impact: 12°Trunk top: −83°Trunk impact: 7° | Pelvis top: −40°Pelvis impact: 18°Trunk top: −82°Trunk impact: 7° |