Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong; The Chinese University of Hong Kong Centre for Nutritional Studies, Shatin, Hong Kong.
Department of Medicine and Therapeutics, Faculty of Medicine, The Chinese University of Hong Kong, Shatin, Hong Kong; The Chinese University of Hong Kong Centre for Nutritional Studies, Shatin, Hong Kong.
J Am Med Dir Assoc. 2019 May;20(5):558-563. doi: 10.1016/j.jamda.2018.12.009. Epub 2019 Feb 1.
We examined the influence of various dietary patterns on cardiorespiratory fitness (CRF) expressed as peak oxygen uptake (VOpeak), taking into account demographics and lifestyle risk factors.
Prospective cohort study.
We conducted multivariate linear regression analyses using available data from a cohort of community-dwelling older Chinese adults (752 men, 483 women) in Hong Kong. Baseline interviewer-administered questionnaires covered dietary intake estimation and dietary pattern generation from the food frequency questionnaire, demographic and lifestyle factors, self-reported medical history, as well as frailty status. VOpeak at the 7-year follow-up was measured using symptom-limited maximal exercise testing on an electrically braked bicycle ergometer.
In men, baseline Diet Quality Index-International (DQI-I) score (β = 0.044, P = .013) and Okinawan diet score (β = 0.265, P = .014) was independently associated with age-adjusted VOpeak at the 7-year follow-up. The significant association was only retained for the Okinawan diet score in the multivariate adjusted model (β = 0.227, P = .039). Dietary pattern scores including the Dietary Approaches to Stop Hypertension (DASH) score, Mediterranean-DASH Intervention for Neurodegenerative Delay Diet score, Mediterranean Diet Score, and 3 other pattern scores derived by factor analysis were not associated with VOpeak. In women, none of the dietary pattern scores at baseline was associated with VOpeak in both the age-adjusted and multivariate-adjusted models.
CONCLUSIONS/IMPLICATIONS: A higher Okinawan diet score was associated with a higher 7-year CRF in community-dwelling Chinese older men. Further studies are warranted to examine the underlying mechanisms on how the Okinawan diet influences CRF.
本研究考虑到人口统计学和生活方式风险因素，探讨了各种饮食模式对心肺功能（CRF）的影响，以峰值摄氧量（VOpeak）表示。
前瞻性队列研究。
我们对香港社区居住的老年华人成年人队列（752 名男性，483 名女性）的可用数据进行了多元线性回归分析。基线访谈式问卷调查涵盖了饮食摄入估计和来自食物频率问卷的饮食模式生成、人口统计学和生活方式因素、自我报告的病史以及虚弱状况。使用电动制动自行车测功计进行症状限制最大运动测试，测量 7 年随访时的 VOpeak。
在男性中，基线饮食质量指数-国际（DQI-I）评分（β=0.044，P=0.013）和冲绳饮食评分（β=0.265，P=0.014）与 7 年随访时年龄调整后的 VOpeak 独立相关。在多元调整模型中，仅保留了冲绳饮食评分的显著相关性（β=0.227，P=0.039）。包括膳食方法阻止高血压（DASH）评分、地中海-DASH 干预神经退行性延迟饮食评分、地中海饮食评分以及通过因子分析得出的其他 3 个模式评分在内的饮食模式评分与 VOpeak 无关。在女性中，基线时的任何饮食模式评分在年龄调整和多元调整模型中均与 VOpeak 无关。
结论/意义：更高的冲绳饮食评分与社区居住的中国老年男性更高的 7 年 CRF 相关。需要进一步研究来探讨冲绳饮食如何影响 CRF 的潜在机制。
