Low Pre-Season Hamstring-to-Quadriceps Strength Ratio Identified in Players Who Further Sustained In-Season Hamstring Strain Injuries: A Retrospective Study from a Brazilian Serie A Team

被引：2

作者：

Veeck, Filipe ^{[1
]}

Ruas, Cassio V. ^{[2
,3
]}

Pinto, Matheus Daros ^{[3
]}

Grazioli, Rafael ^{[1
]}

Cardoso, Gustavo Pacheco ^{[4
]}

Albuquerque, Thiago ^{[4
]}

Schipper, Lucas ^{[4
,5
]}

Valente, Henrique Goncalves ^{[4
,5
]}

Santos, Victor H. ^{[4
]}

Dornelles, Marcio ^{[4
]}

Rabaldo, Paulo ^{[4
]}

Rocha, Clarice S. ^{[1
]}

Baroni, Bruno Manfredini ^{[5
]}

Cadore, Eduardo Lusa ^{[1
]}

Pinto, Ronei Silveira ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Sch Phys Educ Physiotherapy & Dance, Exercise Res Lab, BR-90690200 Porto Alegre, Brazil

[2] Univ Estadual Campinas, Brazilian Inst Neurosci & Neurotechnol, Inst Phys Gleb Wataghin, BR-13083854 Sao Paulo, Brazil

[3] Edith Cowan Univ, Sch Med & Hlth Sci, Joondalup 6027, Australia

[4] Gremio Foot Ball Porto Alegrense, Med & Tech Dept, BR-90250590 Porto Alegre, Brazil

[5] Fed Univ Hlth Sci Porto Alegre, Phys Therapy Dept, BR-90050170 Porto Alegre, Brazil

来源：

SPORTS | 2023年 / 11卷 / 04期

关键词：

isokinetic; muscle strength balance; peak torque; hamstring strain injury; football; PROFESSIONAL SOCCER PLAYERS; FOOTBALL; PREVENTION; OFFERS; RISK;

D O I：

10.3390/sports11040089

中图分类号：

G8 [体育];

学科分类号：

04 ; 0403 ;

摘要：

A common pre-season injury prevention assessment conducted by professional football clubs is the hamstring-to-quadriceps (H:Q) strength ratio calculated by peak torque (PT). However, it is debatable whether players that present low pre-season H:Q ratios are more susceptible to further sustaining in-season hamstring strain injuries (HSI). Based upon retrospective data from a Brazilian Serie A football squad, a particular season came to our attention as ten out of seventeen (similar to 59%) professional male football players sustained HSI. Therefore, we examined the pre-season H:Q ratios of these players. H:Q conventional (CR) and functional (FR) ratios, and the respective knee extensor/flexor PT from the limbs of players further sustaining in-season HSI (injured players, IP) were compared to the proportional number of dominant/non-dominant limbs from uninjured players (UP) in the squad. FR and CR were similar to 18-22% lower (p < 0.01), whereas quadriceps concentric PT was similar to 25% greater for IP than UP (p = 0.002). Low scores of FR and CR were correlated (p < 0.01) with high levels of quadriceps concentric PT (r = -0.66 to -0.77). In conclusion, players who sustained in-season HSI had lower pre-season FR and CR compared to UP, which appears to be associated with higher levels of quadriceps concentric torque than hamstring concentric or eccentric torque.

引用

页数：11

共 35 条

[1] ISOKINETIC HAMSTRING QUADRICEPS STRENGTH RATIO - INFLUENCE FROM JOINT ANGULAR VELOCITY, GRAVITY CORRECTION AND CONTRACTION MODE [J].