Background/Objectives:Colorectal cancer is a significant health problem worldwide. Surgery is the primary curative treatment for most colorectal cancers. Cardiopulmonary exercise testing is now performed widely before surgery, and it is the most objective and precise means of evaluating pre-surgical physical fitness. Also, we can use the 6 min walk test to measure cardiorespiratory fitness before surgery.Methods:We included colorectal patients who were awaiting open abdominal or laparoscopic surgery. After admission to the hospital, patients who signed informed consent forms fulfilled a short questionnaire about health and physical status, preoperative physical activities, and quality of life questionnaire (EORTC QLQ-C30). Patients performed a 6 min walk test (6MWT) 2 days before surgery and 7 days after surgery. 6MWT is a tool for measuring the functional status of fitness. Also, they fulfilled the quality of recovery questionnaire (QoR 15) 7 days after surgery.Results:In a final analysis, we included 72 patients with a mean age of 62.48. We compared the number of steps, walk distance, average and maximal walk speed, and average and maximal heart rate before and after surgery, overall, and by group. Our findings show a statistically significant difference between men and women in the walk distance (F= 4.99,p= 0.02) The number of steps showed a statistically significant difference according to patients’ ages (F= 2.90,p= 0.02). Also, we detected differences in the average and maximum heart rate during walking when comparing body mass index (average heart rateF= 5.72,p= 0.00, maximum heart rateF= 2.52,p= 0.04).Conclusions:Our study provides evidence that average and maximal heart rate during the 6 min walk test was higher in the postoperative period, especially in overweight and obese participants.
背景/目的：结直肠癌是全球范围内一个重大的健康问题。手术是大多数结直肠癌的主要根治性治疗手段。目前，术前广泛进行心肺运动测试，这是评估术前体能最客观、最精确的方法。此外，我们还可以使用6分钟步行测试来测量术前的心肺功能。 方法：我们纳入了等待开腹或腹腔镜手术的结直肠癌患者。入院后，签署知情同意书的患者填写了一份关于健康状况、身体状态、术前体力活动以及生活质量问卷（EORTC QLQ-C30）的简短问卷。患者在术前2天和术后7天进行了6分钟步行测试（6MWT）。6MWT是衡量体能功能状态的工具。此外，他们在术后7天完成了恢复质量问卷（QoR 15）。 结果：在最终分析中，我们纳入了72名患者，平均年龄为62.48岁。我们比较了手术前后、整体及各组间的步数、步行距离、平均和最大步行速度，以及平均和最大心率。我们的研究结果显示，男性和女性在步行距离上存在统计学显著差异（F=4.99，p=0.02）。步数根据患者年龄显示出统计学显著差异（F=2.90，p=0.02）。此外，在比较体重指数时，我们检测到步行期间平均心率和最大心率的差异（平均心率F=5.72，p=0.00；最大心率F=2.52，p=0.04）。 结论：我们的研究提供证据表明，在6分钟步行测试中，术后期间的平均心率和最大心率更高，尤其是在超重和肥胖的参与者中。
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