OBJECTIVE The 3-meter backward walk (3MBW) test is an outcome performance measure to assess backward walking mobility, balance, and risk of fall risk. However, the lack of baseline values is a potential limitation for its use as a rehabilitation target value or predictor of outcomes. This study aimed at ascertaining a gender-and age-reference value of 3MBW and determining its correlation with socio-demographic and anthropometric variables. METHODS A total of 1601 Nigerian healthy adults participated in this cross-sectional study. 3MBW was measured following standardized procedure on a marked 3 m floor. Anthropometrics and socio-demographics parameters were taken. Data were summarized using the descriptive statistics of mean, standard deviation and percentile (less than the 25th, between the 25th and 75th, and above the 75th percentiles was regarded as low, average and high 3MBW, respectively). RESULTS From this study, less than 2.23 sec and 2.60 sec were regarded as low risk of fall for males and females respectively; 2.23-3.00 sec and 2.60-3.50 sec as average risk of fall for males and female respectively while greater than 3.00-3.9 sec and 3.50-3.90 sec were regarded as high risk of fall for male and female respectively. 3MBWT was significantly associated with age (r =0.51, p=0.001), sex (r=0.315, p=0.001), weight (r=0.14, p=0.001), BMI (r=0.28, p=0.001) but not height (r = -0.03; p=0.250). CONCLUSION This study provided a reference set of values according to age and gender for 3MBW in healthy individuals. Males have shorter 3MBW than females and the time taken to accomplish 3MBW increases with age.

中文翻译：

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表面健康成年人3米倒退步行测试参考值。

目标 3 米向后行走 (3MBW) 测试是一项结果表现测量，用于评估向后行走的灵活性、平衡性和跌倒风险。然而，缺乏基线值是其用作康复目标值或结果预测指标的潜在限制。本研究旨在确定 3MBW 的性别和年龄参考值，并确定其与社会人口统计和人体测量变量的相关性。方法 共有 1601 名尼日利亚健康成年人参与了这项横断面研究。3MBW 是按照标准化程序在标记的 3 m 地板上测量的。采集了人体测量学和社会人口统计学参数。使用平均值、标准差和百分位数的描述性统计来汇总数据（低于 25、25 和 75 之间以及高于 75 百分位数分别被视为低、平均和高 3MBW）。结果 从这项研究来看，男性和女性的跌倒风险分别小于 2.23 秒和 2.60 秒；男性和女性分别以2.23-3.00秒和2.60-3.50秒为平均跌倒风险，而大于3.00-3.9秒和3.50-3.90秒分别被视为男性和女性高跌倒风险。3MBWT 与年龄（r = 0.51，p = 0.001）、性别（r = 0.315，p = 0.001）、体重（r = 0.14，p = 0.001）、BMI（r = 0.28，p = 0.001）显着相关，但不相关高度（r = -0.03；p=0.250）。结论 本研究根据健康个体的年龄和性别提供了一组参考值 3MBW。男性的 3MBW 比女性短，并且完成 3MBW 所需的时间随着年龄的增长而增加。