Hand tremors research

[Glenn E. Meyer]

Based on air guns but might interest some:

https://www.mdpi.com/1424-8220/24/8/2438

The Effects of Hand Tremors on the Shooting Performance of Air Pistol Shooters with Different Skill Levels
by Yu Liu 1ORCID,Nijia Hu 2,Mengzi Sun 3ORCID,Feng Qu 1 and Xinglong Zhou 1,*

Physiologic hand tremors are a critical factor affecting the aim of air pistol shooters. However, the extent of the effect of hand tremors on shooting performance is unclear. In this study, we aim to explore the relationship between hand tremors and shooting performance scores as well as investigate potential links between muscle activation and hand tremors. In this study, 17 male air pistol shooters from China’s national team and the Air Pistol Sports Center were divided into two groups: the elite group and the sub-elite group. Each participant completed 40 shots during the experiment, with shooters’ hand tremors recorded using three-axis digital accelerometers affixed to their right hands. Muscle activation was recorded using surface electromyography on the right anterior deltoid, posterior deltoid, biceps brachii (short head), triceps brachii (long head), flexor carpi radialis, and extensor carpi radialis. Our analysis revealed weak correlations between shooting scores and hand tremor amplitude in multiple directions (middle-lateral, ML: r2 = −0.22, p < 0.001; vertical, VT: r2 = −0.25, p < 0.001), as well as between shooting scores and hand tremor complexity (ML: r2 = −0.26, p < 0.001; VT: r2 = −0.28, p < 0.001), across all participants. Notably, weak correlations between shooting scores and hand tremor amplitude (ML: r2 = −0.27, p < 0.001; VT: r2 = −0.33, p < 0.001) and complexity (ML: r2 = −0.31, p < 0.001) were observed in the elite group but not in the sub-elite group. Moderate correlation were found between the biceps brachii (short head) RMS and hand tremor amplitude in the VT and ML directions (ML: r2 = 0.49, p = 0.010; VT: r2 = 0.44, p = 0.025) in all shooters, with a moderate correlation in the ML direction in elite shooters (ML: r2 = 0.49, p = 0.034). Our results suggest that hand tremors in air pistol shooters are associated with the skill of the shooters, and muscle activation of the biceps brachii (long head) might be a factor affecting hand tremors. By balancing the agonist and antagonist muscles of the shoulder joint, shooters might potentially reduce hand tremors and improve their shooting scores.

Lots of references on pistol shooting.

[Beast17]

Lots of references on pistol shooting.

Thank you for this. I hadn't realized there was such a body of academic research on air pistol shooting. Over the last couple of years, air pistol has become virtually the entirety of my shooting, primarily because I can shoot it in my basement and don't have to deal with public ranges. Of course, one of my idiosyncrasies is that I have to read the footnoted sources and then read the footnoted sources to those and I end up traveling down this endless rabbit hole, so maybe I should curse you instead of thanking you!