前交叉韧带重建术后早期体力活动的预测因素
简介
该研究为前瞻性队列研究，纳入63例ACLR患者（平均19.6岁，55.6%女性），在术后4个月和6个月时使用三轴加速度计连续7天记录每日步数和中等强度以上体力活动（MVPA），同时评估恐动症量表（TSK-11）、IKDC评分、股四头肌力量、移植物类型、半月板修复状态及性别。结果显示，上述变量组合在6个月时与每日步数显著相关（R²=0.260），在4个月和6个…
英文摘要
CONTEXT: Individuals often demonstrate reduced physical activity (PA) between 6 months and 5 years after anterior cruciate ligament reconstruction (ACLR), but little is known about PA levels during the first 6 months postoperatively. OBJECTIVE: To identify factors that predict PA in this early period. DESIGN: Prospective cohort study. SETTING: Participants were recruited from an academic health science center and a private sports medicine clinic and assessed in a clinical and research setting. PATIENTS OR OTHER PARTICIPANTS: Sixty-three participants aged 13 to 35 years who underwent ACLR (19.6 ± 5.0 years; 55.6% female). MAIN OUTCOME MEASURES: Daily step counts and moderate-to-vigorous PA (MVPA) were assessed with a 3-axis accelerometer for 7 consecutive days during waking hours at 4 and 6 months after ACLR. The Tampa Scale of Kinesiophobia (TSK-11), International Knee Documentation Committee Subjective Knee Form (IKDC), and quadriceps strength were assessed at each time point. Graft type and meniscus repair status were extracted from operative reports, whereas sex was self-reported. Multiple linear regression was used to determine associations between these variables and PA outcomes. RESULTS: At 6 months, the combination of sex, TSK-11, IKDC, graft type, meniscus repair status, and quadriceps strength was significantly associated with daily steps (R 2 = 0.260, adjusted R 2 = 0.147, P = .042). This group of variables was also associated with MVPA at both 4 months (R 2 = 0.249, adjusted R = 0.142, P = .040) and 6 months (R 2 = 0.272, adjusted R 2 = 0.162, P = .031). However, no individual factor was a significant predictor of PA at either time point (all Ps > .05). CONCLUSIONS: Several clinical and demographic factors were collectively associated with early PA after ACLR, but they explained only a small portion of the variance. Additional factors likely influence early recovery, and further research is needed to understand their role and the long-term impact of early PA.