Cross-national comparisons of adolescent mental health and suicidality in the Middle East: a cross-sectional secondary analysis of the global school-based student health survey.

Monitoring training load and its impact on neuromuscular performance has become a key component of performance optimization and injury prevention in team sports. External load, commonly assessed using GPS-derived metrics such as total distance, high-speed running, and sprint distance, provides valuable information about the physical demands imposed on players (). At the same time, neuromuscular assessments, including countermovement jump (CMJ) performance and hamstring strength, are widely used to evaluate fatigue, readiness, and injury risk (, ). Previous research has shown that accumulated training and match load can influence neuromuscular performance, often leading to transient reductions in force production and power output due to fatigue (, ). However, the relationship between external load and neuromuscular responses is not always consistent, with some studies reporting performance maintenance or even improvements following specific training stimuli. These discrepancies suggest that neuromuscular responses to load may depend on factors such as training context, intensity, and individual player characteristics (). In addition to performance measures, inter-limb asymmetry has gained increasing attention as a potential indicator of neuromuscular imbalance and injury risk. Previous studies have suggested that asymmetry may be influenced by fatigue and training load, although the direction and magnitude of these changes remain unclear (, ). Furthermore, most existing research has focused on isolated training periods or match play, with limited attention given to how different training contexts may influence asymmetry and neuromuscular responses.