used to assess and monitor physical performance, specifically in volleyball players. It was noted that assessing and monitoring vertical jump height with wearables is a general procedure in volleyball. Being a specific marker of athletic performance in volleyball (jump as high as possible, block, react quickly, attack the ball, and combine these actions with a high technical level), its accurate measurement in training and competition and the ability to track changes over time are critical for coaches and researchers. As with any other piece of equipment, wearable usage has advantages and disadvantages. The authors noted that the moderate-to-high correlations found could be caused by the homogeneity of the sample tested, and the greater degree of underestimation could be caused by several factors, such as the type of surface, the jump, or the specifications of the device itself. The authors also argued that the literature lacks evidence about the use of wearables in a volleyball context, indicating that more knowledge is needed to better understand jump characteristics during training and competitions across different age groups, player levels, and sex. Regarding the articles, one research group (contributor 3) aimed to evaluate the external training load of elite-level goalkeepers in the days before the match day and their playing status in subsequent matches. The specific physical performance quantification of variables related to goalkeeping was performed with a global positioning system and accelerometer technology. The authors argued that this study is one of the first to evaluate the external training load of elite-level goalkeepers during a competitive micro-cycle quantifying goalkeeping-specific physical performance. The main findings indicated that it was possible to understand when goalkeepers experienced the greatest external training load, and specifically, when starters and nonstarters' external training loads were similar. The authors argued that such outputs can be of meaningful importance in goalkeeping-specific training and prescription processes. Specifically, they found out when (i) situational drills involving a high number of dives, jumps, and explosive reactions can be implemented and (ii) such drills should be reduced to allow goalkeepers to achieve optimal performance on the match day. Moreover, it was field testing; thus, only with wearables would it be possible to perform such measurements in a real training/competition context. Others (contributor 4) aimed to investigate whether the exclusion or inclusion of body segments affects the acceleration, velocity, rotation angle, and timeline of execution of a reverse punch, as well as examine the correlation between such quantities. The authors argued that joint kinematics are traditionally restricted to laboratory research, and the equipment used is usually robust, expensive, and demands trained experts who know how to operate it. Consequently, athletes face limitations that are not common in competition and training. Therefore, acquiring data with wearables marks a major advance in such types of movements or sports. Overall, it was noted that there were significant differences in the temporal and kinematic variables of the reverse punch that arise from the modality of execution. The authors also highlighted that some sports issues can be solved with engineering applied to sports sciences. Moreover, real-time data synchronization combining multimodal sensors and camera fusion is not a common approach because of numerous constraining factors in data acquisition. Therefore, wearables can be a less expensive and time-consuming approach to acquiring these data. Finally, the study by [PERSON] et al. (contributor 5) aimed to understand the variation of a set of kinematic and kinetic variables between two swimming sections and their relationship to swimming velocity. The kinetic data were acquired using a wearable system that measures the propulsive force generated by the upper limbs, where the hand is the fitting proxy.