Ahmad Mohamad Hasnan, Shahar Suzana, Teng Nur Islami Mohd Fahmi, Manaf Zahara Abdul, Sakian Noor Ibrahim Mohd, Omar Baharudin
Centre of Nutrition Epidemiology Research, Institute of Public Health, Ministry of Health, Kuala Lumpur, Malaysia.
Dietetics Program, Universiti Kebangsaan Malaysia, Kuala Lumpur, Malaysia.
Clin Interv Aging. 2014 Sep 16;9:1551-61. doi: 10.2147/CIA.S60462. eCollection 2014.
This study aimed to determine the factors associated with exercise behavior based on the theory of planned behavior (TPB) among the sarcopenic elderly people in Cheras, Kuala Lumpur. A total of 65 subjects with mean ages of 67.5±5.2 (men) and 66.1±5.1 (women) years participated in this study. Subjects were divided into two groups: 1) exercise group (n=34; 25 men, nine women); and 2) the control group (n=31; 22 men, nine women). Structural equation modeling, based on TPB components, was applied to determine specific factors that most contribute to and predict actual behavior toward exercise. Based on the TPB's model, attitude (β=0.60) and perceived behavioral control (β=0.24) were the major predictors of intention to exercise among men at the baseline. Among women, the subjective norm (β=0.82) was the major predictor of intention to perform the exercise at the baseline. After 12 weeks, attitude (men's, β=0.68; women's, β=0.24) and subjective norm (men's, β=0.12; women's, β=0.87) were the predictors of the intention to perform the exercise. "Feels healthier with exercise" was the specific factor to improve the intention to perform and to maintain exercise behavior in men (β=0.36) and women (β=0.49). "Not motivated to perform exercise" was the main barrier among men's intention to exercise. The intention to perform the exercise was able to predict actual behavior regarding exercise at the baseline and at 12 weeks of an intervention program. As a conclusion, TPB is a useful model to determine and to predict maintenance of exercise in the sarcopenic elderly.
本研究旨在基于计划行为理论（TPB）确定吉隆坡蕉赖地区肌肉减少症老年人运动行为的相关因素。共有65名受试者参与了本研究，男性平均年龄为67.5±5.2岁，女性平均年龄为66.1±5.1岁。受试者分为两组：1）运动组（n = 34；25名男性，9名女性）；2）对照组（n = 31；22名男性，9名女性）。基于TPB成分的结构方程模型被用于确定对运动实际行为贡献最大并能预测该行为的具体因素。根据TPB模型，在基线时，态度（β = 0.60）和感知行为控制（β = 0.24）是男性运动意愿的主要预测因素。在女性中，主观规范（β = 0.82）是基线时运动意愿的主要预测因素。12周后，态度（男性，β = 0.68；女性，β = 0.24）和主观规范（男性，β = 0.12；女性，β = 0.87）是运动意愿的预测因素。“运动后感觉更健康”是增强男性（β = 0.36）和女性（β = 0.49）运动意愿及维持运动行为的具体因素。“缺乏运动动力”是男性运动意愿的主要障碍。运动意愿能够预测干预项目基线时和12周时的运动实际行为。总之，TPB是确定和预测肌肉减少症老年人运动维持情况的有用模型。
