4.8. Study’s Limitations
PWSs
The first limitation of the present study was that we did not investigate the acute effect of each ingredient separately on basketball performance. The second limitation was that the physiological background (blood samples, metabolic pathways, etc.), which could explain the results of the present study, was not evaluated. The third limitation was that the dose of caffeine in the study group, was significantly lower (2.4 ± 0.4 mg/kg of body weight) than the recommended dose of caffeine (3–6 mg/kg of bodyweight) and, in some participants, did not exceed 2 mg/kg of body weight. Furthermore, the dose of BCAA was also low. Finally, the present study report only the acute effect of this PWS supplementation. Given that most supplementation needs a more extended period of administration to act, future studies should investigate the longitudinal effect of such PWSs on basketball players’ performance.