Sports Medicine Discipline, Instituto de Ortopedia e Traumatologia, Hospital das Clínicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil.
PLoS One. 2018 Mar 22;13(3):e0194432. doi: 10.1371/journal.pone.0194432. eCollection 2018.
Although anterior cruciate ligament (ACL) reconstruction is considered a successful procedure in restoring knee stability, few studies have addressed the issue of aerobic capacity after ACL surgery. Soccer players need technical, tactical and physical skills to succeed, such as good knee function and aerobic capacity. Our purpose is to evaluate aerobic fitness in ACL injured professional football players and six months after ACL reconstruction compared to a control group. Twenty athletes with ACL injury were evaluated and underwent ACL reconstruction with hamstrings autograft, and were compared to twenty healthy professional soccer players. The methods used to evaluate aerobic fitness were maximum oxygen uptake (VO2max) and ventilatory thresholds with a treadmill protocol, before and six months after surgery, compared to a control group. Knee function questionnaires, isokinetic strength testing and body composition evaluation were also performed.
Median ACL-injured patients age was 21 years old, and controls 20.5 years old. (n.s.). Preoperative VO2max in the ACL injured group was 45.2 ± 4.3 mL/kg/min, postoperative 48.9 ± 3.8 mL/kg/min and controls 56.9 ± 4.2 mL/kg/min. (p< .001 in all comparisons). Body composition evaluation was similar in all situations. Knee function questionnaires and quadriceps peak torque deficit improved after surgery but were significantly lower compared to controls.
Aerobic fitness is significantly reduced in professional soccer players with ACL injury, and six months of rehabilitation was not enough to restore aerobic function after ACL reconstruction, compared to non-injured players of the same level.
虽然前交叉韧带（ACL）重建被认为是恢复膝关节稳定性的成功手术，但很少有研究探讨 ACL 手术后的有氧能力问题。足球运动员需要技术、战术和身体技能才能取得成功，例如良好的膝关节功能和有氧能力。我们的目的是评估 ACL 损伤的职业足球运动员和 ACL 重建后 6 个月的有氧健身能力，并与对照组进行比较。评估了 20 名 ACL 损伤的运动员，并对他们进行了 ACL 重建，使用半腱肌自体移植物，与 20 名健康的职业足球运动员进行了比较。使用跑步机方案评估有氧健身能力的方法包括最大摄氧量（VO2max）和通气阈值，分别在手术前和手术后 6 个月与对照组进行比较。还进行了膝关节功能问卷、等速肌力测试和身体成分评估。
ACL 损伤患者的中位年龄为 21 岁，对照组为 20.5 岁。（无统计学意义）。ACL 损伤组术前 VO2max 为 45.2±4.3 mL/kg/min，术后为 48.9±3.8 mL/kg/min，对照组为 56.9±4.2 mL/kg/min。（所有比较均<0.001）。所有情况下的身体成分评估均相似。膝关节功能问卷和股四头肌峰值扭矩缺陷在手术后得到改善，但与对照组相比仍明显较低。
ACL 损伤的职业足球运动员的有氧健身能力明显降低，与同一水平的未受伤运动员相比，ACL 重建后 6 个月的康复不足以恢复有氧功能。
