隨著人口迅速老化，促進高齡者的健康日益受到重視，有研究指出透過網路可能是有效的可行方式。網路提供豐富資訊和服務，越來越多高齡者透過網路獲取各種健康資訊，此外，許多研究已證實身體活動能為高齡者帶來許多健康效益，因此本研究欲探討探討高齡者網路使用與身體活動間的關聯性。研究目的如下：(1) 了解高齡者的社會人口學特性與網路使用、身體活動間之關聯性。(2) 探討高齡者網路使用與身體活動間之關聯性。本研究招募199名65歲以上、具備獨立行走能力且有清楚口語表達能力的高齡者，研究使用客觀測量工具ActiGraph三軸加速規 (GT3X+, Pensacola, Florida) 記錄身體活動量，進行連續7天的配戴，每日10小時以上，至少配戴4日並包含1日假日。網路使用則透過數位發展部之數位調查問卷以了解使用狀況，並蒐集社會人口學變項，研究資料經問卷編碼和身體活動數據轉換後，剔除數據不全之資料，共納入172名有效樣本，以SPSS 23進行描述性統計、卡方檢定、獨立樣本t檢定、單因子變異數分析以及多元邏輯斯迴歸進行分析。所得結果如下：一、「網路使用頻率中等」的高齡者較「不使用或網路使用頻率低」者有較高的可能性達到WHO所建議的每週150分鐘身體活動，且有較多的每日平均步數。二、網路使用目的為「資訊取得」的高齡者較「不使用／不知道或其他」者有較高的可能性達到WHO所建議的每週150分鐘身體活動，且有較多的每日平均客觀中強度、中高強度身體活動及平均步數。本研究提供健康傳播支持性的實證結果，可供高齡者身體活動之政策參考，或數位產品開發、健康促進規劃等高齡者服務產業評估依據，達到提升臺灣高齡者健康發展之目的。

The aging population is thriving worldwide, and it is critical to improve the health of older adults through physical activity (PA). Researches have indicated that the Internet may be an effective method to achieve the goal. The Internet provides a wealth of information and services, and more and more older adults are accessing various health information online. Moreover, numerous studies have confirmed that PA brings many health benefits to the elderly. Therefore, this study aimed to explore the association between Internet use and PA in older adults.
The objectives of this study were as the following: (1) To understand the association between the sociodemographic characteristics of the older adults and their use of the Internet and PA. (2) To investigate the association between Internet use and PA among the older adults. This study recruited 199 individuals aged 65 and above, who were capable to walk independently and had no cognitive impairments. PA was measured using the ActiGraph triaxial accelerometer (GT3X+, Pensacola, Florida), worn constantly for 7 days, at least 10 hours per day, at least 4 days which one weekend day included. Internet use was assessed through a digital survey questionnaire developed by the Digital Development Department to understand usage patterns, and sociodemographic variables were collected. After coding the questionnaires and converting the PA data, incomplete data were excluded, resulting in 172 valid samples. Data analysis was performed using SPSS 23, including descriptive statistics, chi-square tests, independent samples t-tests, one-way ANOVA, and multiple logistic regression.
The results were as follows: (1) Older adults with a “moderate frequency of Internet use” were more likely than those with “low or no Internet use” to meet the WHO-recommended 150 minutes of PA per week, and also had a higher average daily step count. Older adults who use the Internet for “Goods-and-Information Acquisition “are more likely than those who use it “no use/ no purpose or others” to meet the WHO-recommended 150 minutes of PA per week, and also engage in more moderate or moderate to vigorous intensity PA and have a higher average daily step count.
This study provided empirical evidence for health communication support and could be used to be a reference for policies promoting PA among older adults, or as a basis for evaluating digital product development and health arouse plan in the service industry of older adults, with the aim of improving the health development of the older population in Taiwan.

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