School of Nursing, Jilin University, Changchun, Jilin province, China.
School of Nursing, Inner Mongolia Medical College, Hohhot, Inner Mongolia, China.
Support Care Cancer. 2020 Feb;28(2):819-826. doi: 10.1007/s00520-019-04873-3. Epub 2019 Jun 1.
The purpose of this study was to investigate the physical activity (PA) of colorectal cancer (CRC) survivors during chemotherapy and to explain it based on the theory of planned behavior (TPB). In addition, the effects of planning, past physical activity (P-PA), and self-efficacy on the PA of CRC survivors were analyzed.
CRC survivors were recruited in a third-grade hospital of Changchun via a convenience sampling method. All survivors were asked to complete self-report questionnaires assessing medical and demographic variables, PA, constructs from the TPB, P-PA, planning, and self-efficacy.
A total of 174 CRC survivors were included in this study. Only 7.5% (13) of these CRC survivors had sufficient PA, and 32.2% (56) of CRC survivors were completely sedentary. Gender, education level, working status, residential location, method of payment for medical expenses, and cancer stage were all associated with PA in these patients (P < 0.05). The path model was able to explain 54% (R = 0.54) of the PA variance in these CRC survivors. P-PA had the greatest impact on PA during chemotherapy, and P-PA affected PA both directly and indirectly through planning.
Insufficient PA in CRC survivors was associated with a variety of factors, with P-PA having the greatest impact on this outcome. The results of this study suggest that attention must be paid to survivors who had exhibited insufficient PA prior to initial diagnosis.
本研究旨在调查结直肠癌（CRC）患者在化疗期间的身体活动（PA）情况，并基于计划行为理论（TPB）对其进行解释。此外，还分析了计划、既往身体活动（P-PA）和自我效能对 CRC 幸存者 PA 的影响。
通过便利抽样法，在长春市一家三级医院招募 CRC 幸存者。所有幸存者均被要求完成自我报告问卷，评估医疗和人口统计学变量、PA、TPB 构念、P-PA、计划和自我效能。
共有 174 名 CRC 幸存者纳入本研究。这些 CRC 幸存者中仅有 7.5%（13 名）具有足够的 PA，32.2%（56 名）的 CRC 幸存者完全久坐不动。性别、教育程度、工作状况、居住地点、医疗费用支付方式和癌症分期均与患者的 PA 相关（P<0.05）。路径模型能够解释这些 CRC 幸存者 54%（R=0.54）的 PA 变异。P-PA 对化疗期间的 PA 影响最大，并且通过计划直接和间接影响 PA。
CRC 幸存者的 PA 不足与多种因素有关，其中 P-PA 对这一结果的影响最大。本研究结果提示，必须关注初始诊断前就表现出 PA 不足的幸存者。
