Do you notice anything unusual or potentially problematic in this paper about basketball training?

There are data inconsistencies in the paper. The paper examines basketball players aged 18–26. However, the occupational status also includes 65 retired participants, which is unlikely given the participants’ age. Additionally, 87 participants practice other sports. However, in the question about years in basketball, all 387 participants are included, which is inconsistent. The paper does not clarify whether participants who practice other sports also practice basketball.