PDF(Pubmed)
Abstract：
The KOJI AWARENESS (KA) screening test assesses motor function in humans. We aimed to analyze the correlation between age and KA screening scores and to identify the specific age at which a significant decline occurs. A total of 793 healthy participants (234 females) were interviewed for basic information on age and sex and completed the KA screening test. In addition to calculating the total score from the KA test, the scores were calculated for the neck-scapula-upper extremity-complex (NSU), trunk, and lower extremity (LE) segments. Spearman\'s rank correlation coefficient was used to assess the validity of the test. Additionally, Bayesian linear regression was employed to estimate the change point in KA scores, facilitating the identification of a critical age associated with a notable decline in motor function. KA screening total and separate body segment scores were negatively correlated with age in both gender (for female and male, KA total score, ρ = - 0.443, ρ = - 0.344; NSU segment, ρ = - 0.431, ρ = - 0.427; trunk segment, ρ = - 0.210, ρ = - 0.473; LE segment: ρ = - 0.43, ρ = - 0.507). Furthermore, a change-point analysis using linear regression analysis showed that KA screening total scores declined sharply at the age of 49.1(95% credible interval: 37.503, 68.366). The result show that total KA scores decrease - 0.196 (95% credible interval: - 0.335, - 0.049) for every 1 year of age increase, and for ages over 49.1, total KA scores additionally decrease - 0.255 (95% credible interval: - 0.485, - 0.054) for every 1 year of age increase. In the NSU segment, females showed a more rapid decline than males from the age of 50 years. KA screening test total scores declined sharply at the age of 49.1. These results may be useful in setting treatment goals, exercise, and lifestyle programs for age-related decline in motor function.
摘要：
KOJI意识(KA)筛选测试评估人类的运动功能。我们旨在分析年龄与KA筛查评分之间的相关性，并确定发生显着下降的特定年龄。共有793名健康参与者（234名女性）接受了年龄和性别的基本信息采访，并完成了KA筛查测试。除了计算KA考试的总分外，计算颈肩胛骨上肢复合体（NSU）的评分，树干,和下肢（LE）段。使用Spearman的等级相关系数来评估测试的有效性。此外,采用贝叶斯线性回归估计KA分数的变化点，有助于识别与运动功能显着下降相关的临界年龄。KA筛查总体和单独的身体部分得分与性别的年龄呈负相关（对于女性和男性，KA总分,ρ=-0.443，ρ=-0.344；NSU段，ρ=-0.431，ρ=-0.427；树干段，ρ=-0.210，ρ=-0.473；LE段：ρ=-0.43，ρ=-0.507）。此外，使用线性回归分析的变点分析显示,KA筛查总分在49.1岁时急剧下降(95%可信区间:37.503,68.366).结果表明，随着年龄的增长，KA总分下降-0.196（95%可信区间：-0.335，-0.049），在49.1岁以上的人群中,KA总分每增加1岁,还会降低0.255(95%可信区间:-0.485,-0.054).在NSU部分，从50岁开始，女性的下降速度比男性快。KA筛查测试总分在49.1岁时急剧下降。这些结果可能有助于设定治疗目标，锻炼,与年龄相关的运动功能下降的生活方式计划。
