The relationship between blood pressure and functional fitness of older adults in Korea.

Hypertension, also known as high blood pressure (BP), is a critical health issue that can cause cardiovascular disease. It is observed more frequently in older adults. Thus, this study aimed to identify the functional fitness and body composition factors that significantly influence both systolic and diastolic BPs in older adults. Data from 155,266 older adults (51,751 men [33.3%] and 103,505 women [66.7%]) who underwent functional fitness tests between 2013 and 2018 were analyzed. The following seven functional fitness tests were conducted: (a) aerobic endurance (2-min step), (b) upper body muscle strength (hand grip strength), (c) lower body muscle endurance (chair sit-and-stand), (d) flexibility (sit-and-reach), (e) agility (Timed Up and Go), and (f) body composition (body mass index [BMI] and body fat percentage). Systolic and diastolic BPs were used as outcome variables. In examining the proposed relationships, the regression analysis revealed that BMI, body fat percentage, sit-and-reach, 2-min step, hand grip, chair sit-and-stand, and Timed Up and Go were significantly associated with reduced systolic and diastolic body pressures.