Raiteri_et_al_2026_NeuralDrive_results

This repository contains Excel data files (including .csv files) and R Mardown files related to the manuscript entitled "Stretch versus shortening contractions subsequently decrease versus increase neural drive to the human tibialis anterior". Here are some important abbreviations in the .csv files: pid = unique ID assigned to each participant [random effect] – note: P07 does not exist decomp = 1 or 2 (decomposition method [fixed effect]: 1=DEMUSE; 2=MUedit) intensity = 1 or 2 (contraction intensity [fixed effect]: 1=20% MVT; 2=40% MVT) condition = 1, 2, or 3 (contraction condition [fixed effect]: 1=REF; 2=STRhold; 3=SHOhold) muid = unique ID assigned to each motor unit (the total number of motor units [random effect] varies considerably between participants and contraction intensities, but the number is identical among contraction conditions) outcome (e.g., motorUnitResultsUpdate_Raiteri.csv) = median discharge rate of each motor unit during a time-matched steady-state hold phase (units are in Hz [no. of discharges per second])本代码仓库包含与题为《牵张与缩短收缩分别降低与增强人类胫骨前肌神经驱动》的学术手稿相关的Excel数据文件（含.csv格式文件）及R Markdown文档。 .csv文件中包含以下重要缩写说明： pid：为每位参与者分配的唯一识别码[随机效应]——需注意：不存在编号为P07的参与者 decomp：取值为1或2（分解方法[固定效应]：1对应DEMUSE；2对应MUedit） intensity：取值为1或2（收缩强度[固定效应]：1为20% MVT；2为40% MVT） condition：取值为1、2或3（收缩状态[固定效应]：1=REF；2=STRhold；3=SHOhold） muid：为每个运动单位分配的唯一识别码（运动单位总数[随机效应]在不同参与者及收缩强度间差异显著，但在各收缩状态下数量保持一致） outcome（例如motorUnitResultsUpdate_Raiteri.csv）：指时间匹配稳态保持阶段内各运动单位的中位放电频率（单位为Hz，即每秒放电次数）