Limited scope of outcome measures
The study primarily focused on power and speed-related outcomes, neglecting other relevant performance aspects like agility, endurance, and sport-specific skills. A more comprehensive assessment would strengthen the conclusions.
The study exclusively examined acute effects, without investigating any potential longer-term adaptations or cumulative effects of repeated massage gun/foam roller use. Longer-term data are crucial for practical training recommendations.
The study sample consisted of trained athletes, limiting the generalizability of findings to other populations like recreational exercisers or elite athletes. Different populations may respond differently to these interventions.
Lack of follow-up soreness data
Although sessions were separated to allow recovery, no systematic follow-up soreness assessments were conducted, leaving the possibility of residual discomfort influencing subsequent sessions. Carry-over effects could have confounded the results.
Lack of standardized protocols for massage gun use (vibration speed, time, amplitude) makes it harder to generalize findings. Similarly, the study only tested one type of foam roller. Future research should explore various parameters.