Skin thermal response assessed by infrared thermography during small-sided games in soccer players: a pilot study

Authors

DOI:

https://doi.org/10.47197/retos.v74.118037

Keywords:

Thermal asymmetries, thermal imaging, game situations, injury prevention

Abstract

Introduction: Football is characterised by intermittent high-intensity actions interspersed with recovery phases. Monitoring training load is essential to optimize performance and prevent injuries. In this context, infrared thermography serves as a valuable tool for detecting thermal alterations related to physical exertion.

Objective: To analyze the skin temperature response of football players during small-sided games.

Methodology: A quantitative study with repeated measures in a single group was conducted. Mean skin temperature was recorded at three time points: before the 4x4 game (pre), immediately after (post), and after 10 minutes (final). Forty-eight male football players participated (24 ± 1 years; 176.7 ± 0.6 cm; 72.5 ± 3.5 kg; 12.6 ± 1.0% body fat).

Results: Significant variations were observed in lower-limb temperature across the measurement moments, with increases following exercise and decreases during recovery. The greatest changes occurred in the posterior and left legs (p < .001; ES = 0.4–0.8). In the upper limbs, significant differences were also noted, with reductions post-exercise and increases during the final phase, particularly in the anterior arms (p < .001; ES = 0.7–0.9). The most marked thermal asymmetries were found in the posterior thigh and, to a lesser extent, in the anterior leg (p < .05). The left posterior arm showed a significant post-exercise temperature rise with a moderate effect size (ES = 0.69).

Conclusion: Skin temperature varied according to the phase of play, demonstrating distinct thermal responses and indicating potential areas of muscular overload.

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01-01-2026

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Original Research Article

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Moya Ortega, M., Gómez Sánchez, W., Estrada Ocampo, E., Fernández Villada, J. D., Garcia Tamayo, J., & Moya Ortega, A. Y. (2026). Skin thermal response assessed by infrared thermography during small-sided games in soccer players: a pilot study. Retos, 74, 578-588. https://doi.org/10.47197/retos.v74.118037