RELIABILITY OF TWO-DIMENSIONAL VIDEO-BASED RUNNING GAIT ANALYSIS
RELIABILITY OF TWO-DIMENSIONAL VIDEO-BASED RUNNING GAIT ANALYSIS
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DOI：
10.26603/ijspt20180453
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发表时间：
2018-06-01
影响因子：
1.7
通讯作者：
McPoil, Thomas G.
中科院分区：
文献类型：
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作者：
Reinking, Mark F.;Dugan, Leigh;McPoil, Thomas G.
背景资料：虽然二维（2D）视频跑步分析通常在临床环境中进行，定量测量的可靠性以及临床经验的影响还没有研究过。目的：本研究的目的是评估6个不同评分者在跑步机上跑步时使用矢状面和额状面运动学变量的2D视频分析的评分者内和评分者间可靠性。研究设计：横断面研究方法：选取10名（5名女性，5名男性）平均年龄为22.8岁的个体的跑步录像进行分析。两名评分员有超过10年的视频分析经验，其他四名评分员之前没有经验。在开始分析之前，高级研究员对所有评分员进行了两个小时的培训，以审查测量程序和运动分析软件程序。在完成训练和一次练习分析后，每位评分员对10名跑步者的4个60秒视频片段进行两次评估（共20次）。对每名跑步者的两次评估至少间隔一周。跑步者分析的顺序是随机分配的，每个评分者在24小时内完成一次分析。在评分员完成对所有10名跑步者的初步评估后，一周后以不同的随机顺序完成第二次分析。测量了10名跑步者左右下肢的8个矢状面（SAG）和4个额状面（FRT）定量变量。使用组内相关系数（ICC）和测量的标准误（SEM）进行评估的内部和内部的可靠性进行评估。结果：有经验的评分员的内部ICC值范围为0.75至0.98的SAG和0.45至0.96的FRT变量。对于SAG，有经验的评定者之间的评定者间ICC值范围为0.76至0.99，对于FRT变量，为0.82至0.98。对于SAG和FRT变量，经验不足的评定者的评定者内ICC值范围分别为0.54 - 0.99和0.08 - 0.97。对于SAG和FRT变量，无经验评定者之间的评定者间ICC值范围分别为0.93 - 0.99和0.79 - 0.98。评价者内SEM值的基础上，所有评分者的平均值范围从1至47%的平均值为SAG和从6至158%for the FRT variable.Conclusions：评价者内和评价者间的可靠性水平更高的SAG定量变量在本研究中评估相比，FRT变量。当需要对同一跑步者进行重复分析时，经验似乎不是一个因素。
Background: While two-dimensional (2D) video running analysis is commonly performed in the clinical setting, the reliability of quantitative measurements as well as effect of clinical experience has not been studied.Purpose: The purpose of this study was to assess the intra-rater and inter-rater reliability of six different raters using 2D video analysis of sagittal and frontal plane kinematic variables while running on a treadmill.Study Design: Cross-sectional StudyMethods: Running videos from 10 individuals (five female, five male) with a mean age of 22.8 years were selected for analysis. Two raters had over 10 years of experience with running video analysis and the other four raters had no prior experience. Before beginning analyses, the senior investigator conducted two hours of training with all raters to review the measurement procedures and the movement analysis software program. After completing training and one practice analysis, each rater assessed four 60-second video clips for the 10 runners twice (20 total). A minimum of one week separated the two assessments on each runner. The order of the runner analyses were randomly assigned and each rater completed a single analysis within 24 hours. After the rater had completed their initial assessment on all 10 runners, a second analysis was completed one week later with a different order of randomization. Eight sagittal plane (SAG) and four frontal plane (FRT) quantitative variables were measured for the left and right lower extremities on all 10 runners. Intra-and inter-rater reliability was assessed using intraclass correlation coefficients (ICC) and standard error of the measurement (SEM).Results: The intra-rater ICC values for experienced raters ranged from 0.75 to 0.98 for the SAG and 0.45 to 0.96 for FRT variables. The inter-rater ICC values between the experienced raters ranged from 0.76 to 0.99 for the SAG and 0.82 to 0.98 for FRT variables. The intra-rater ICC values for inexperienced raters ranged from 0.54 to 0.99 for the SAG and 0.08 to 0.97 for FRT variables. The inter-rater ICC values between the inexperienced raters ranged from 0.93 to 0.99 for the SAG and 0.79 to 0.98 for FRT variables. Intra-rater SEM values based on average means of all raters ranged from 1 to 47% of the mean values obtained for the SAG and from 6 to 158% for the FRT variables.Conclusions: The intra-rater and inter-rater reliability levels were higher for SAG quantitative variables assessed in this study in comparison to FRT variables. Experience does not appear to be a factor when consistency is required with repeated analyses on the same runner.