Table 8.

Results of individual studies on injury incidence.

Study	Group	Injury information
Reinold et al. [32]	EG (Weighted balls)	In the training group, four elbow injuries were recorded, affecting 24% of the participants, ultimately requiring medical attention. These injuries encompassed two instances of olecranon stress fractures, one occurrence of a partial UCL injury, and another UCL injury that warranted surgical reconstruction. Notably, two of these injuries manifested during the course of the training program, as previously discussed, while the remaining two occurred in the subsequent baseball season.
Reinold et al. [32]	CG	There were no injuries in the control group.

CG: control group; EG: experimental group.