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Background <p>Whole-body muscle mass has been linked to muscular performance. However, the associations between anterior and posterior lean and fat mass with knee muscle strength remain poorly understood in professional athletes.</p> Purpose <p>This study aimed to characterize anterior and posterior thigh lean and fat mass composition in professional senior and under-20 futsal athletes, and to examine their specific influence on isokinetic knee extensor (KE) and flexor (KF) peak torque (PT).</p> Methods <p>63 elite male futsal athletes underwent lateral-view DXA to assess anterior and posterior thigh lean and fat mass, and isokinetic dynamometry for maximal knee strength at 60°/s. Linear Mixed Models were used for analysis.</p> Results <p>The posterior compartment consistently showed greater lean and fat mass than the anterior (<i>p</i> &lt; 0.001). Each 1-kg increase in anterior thigh lean mass predicted a 42.73 Nm increase in KEPT (<i>p</i> = 0.005), while posterior thigh lean mass was not a significant predictor of concentric or eccentric KFPT. Thigh fat mass had no significant effect.</p> Conclusion <p>In conclusion, a compartment-specific relationship was found: anterior thigh lean mass was a determinant of KEPT, whereas the greater mass of the posterior compartment was not a significant predictor of KFPT in elite futsal players. This demonstrates a dissociation between lean mass and function, suggesting a lower muscle quality in the KF, where greater mass does not equate to greater strength.</p>

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Hamstrings exhibit lower muscle quality than quadriceps in professional futsal athletes: a segmental, lateral-view DXA analysis

  • 期刊论文

  • 发表日期：

    2026年1月5日

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  • Raphael Pereira Fortes,
  • Carlos Leonardo Figueiredo Machado,
  • Israel Dias Trapaga,
  • Ronei Silveira Pinto

摘要

Background

Whole-body muscle mass has been linked to muscular performance. However, the associations between anterior and posterior lean and fat mass with knee muscle strength remain poorly understood in professional athletes.

Purpose

This study aimed to characterize anterior and posterior thigh lean and fat mass composition in professional senior and under-20 futsal athletes, and to examine their specific influence on isokinetic knee extensor (KE) and flexor (KF) peak torque (PT).

Methods

63 elite male futsal athletes underwent lateral-view DXA to assess anterior and posterior thigh lean and fat mass, and isokinetic dynamometry for maximal knee strength at 60°/s. Linear Mixed Models were used for analysis.

Results

The posterior compartment consistently showed greater lean and fat mass than the anterior (p < 0.001). Each 1-kg increase in anterior thigh lean mass predicted a 42.73 Nm increase in KEPT (p = 0.005), while posterior thigh lean mass was not a significant predictor of concentric or eccentric KFPT. Thigh fat mass had no significant effect.

Conclusion

In conclusion, a compartment-specific relationship was found: anterior thigh lean mass was a determinant of KEPT, whereas the greater mass of the posterior compartment was not a significant predictor of KFPT in elite futsal players. This demonstrates a dissociation between lean mass and function, suggesting a lower muscle quality in the KF, where greater mass does not equate to greater strength.