Similarity of human forward and backward crawling patterns based on multiscale motion coordination analysis
10.3969/j.issn.1005-202X.2025.05.013
- VernacularTitle:基于多尺度运动协同分析的人体前向与后向爬行运动模式相似性研究
- Author:
Ying CHEN
1
;
Qiliang XIONG
;
Yuan LIU
;
Jieyi MO
;
Xiaolong SHU
;
Bo LIU
;
Changyuan DENG
Author Information
1. 南昌航空大学仪器科学与光电工程学院,江西 南昌 330063
- Publication Type:Journal Article
- Keywords:
human crawling;
motion coordination;
principal component analysis;
multi-scale
- From:
Chinese Journal of Medical Physics
2025;42(5):640-647
- CountryChina
- Language:Chinese
-
Abstract:
Objective To test the hypothesis that backward crawling and forward crawling share similar inter-joint coordination patterns,thus providing potential evidence for the application of backward crawling in rehabilitation training.Methods The acceleration signals in the X,Y,and Z directions for 9 joints(including bilateral wrists,elbows,shoulders,knees,and hips)in 9 volunteers during forward and backward crawling were collected using a custom signal acquisition system,and the pressure signals were also recorded when the palms contacted the ground.The collected acceleration signals were preprocessed,segmented into cycles,and vectorized.Based on the pressure signals,a single crawling cycle was divided into support phase and swing phase.In addition,principal component analysis was applied to extract inter-joint coordination in limbs at various scales(sagittal,coronal,and transverse planes).Pearson correlation coefficients of inter-joint coordination patterns were compared between forward and backward crawling in support period,swing period,and full cycle.Results The correlation coefficients for coordination patterns in the full cycle at the transverse plane scale were 0.813 5(PC1)and 0.837 5(PC2),and the correlation coefficient of the support period PC2 was 0.901 8.At the sagittal plane scale,the correlation coefficient of the support period PC1 was 0.948 5.Conclusion The study provides preliminary evidence that limb motion coordination patterns during backward crawling are similar to those observed during forward crawling.Future research will further explore the effects of backward crawling on functional rehabilitation in individuals with motor impairments.
