PMID- 30541379 OWN - NLM STAT- MEDLINE DCOM- 20190507 LR - 20190507 IS - 1087-1640 (Print) IS - 1087-1640 (Linking) VI - 23 IP - 2 DP - 2019 Apr 1 TI - Combined Hip Angle Variability and RPE Could Determine Gait Transition in Elite Race Walkers. PG - 216-229 LID - 10.1123/mc.2017-0027 [doi] AB - The aim of this study was to investigate the role of energy cost in locomotion, specifically the rate of perceived exertion and movement variability in gait transition for eight race walkers (RW) and seven nonrace walkers (NRW). We hypothesized that a group of correlated variables could serve as combined triggers. Participants performed a preferred transition speed (PTS) test, exhibiting a higher PTS for RW (10.35 +/- 0.28 km/hr) than for NRW (7.07 +/- 0.69 km/hr), because RW engaged in race walking before switching to running. None of the variables increased before transition and dropped in PTS, which challenged the hypothesis of a unique transition variable in gait transitions. Principal component analysis showed that combined hip angle variability and rate of perceived exertion could determine gait transitions in elite RW and NRW. Thus, human gait transition may be triggered by a pool of determinant variables, rather than by a single factor. FAU - Heugas, Anne-Marie AU - Heugas AM AD - 1 Universite Paris-Sud. AD - 2 Universite Paris-Saclay. AD - 3 Universite d'Orleans. FAU - Siegler, Isabelle A AU - Siegler IA AD - 1 Universite Paris-Sud. AD - 2 Universite Paris-Saclay. AD - 3 Universite d'Orleans. LA - eng PT - Journal Article DEP - 20181212 PL - United States TA - Motor Control JT - Motor control JID - 9706297 SB - IM MH - Adult MH - Female MH - Gait/*physiology MH - Hip/*physiopathology MH - Humans MH - Male MH - Walkers/*trends MH - Walking/*physiology MH - Young Adult OTO - NOTNLM OT - energy cost OT - movement variability OT - perceived exertion OT - preferred transition speed OT - race walking EDAT- 2018/12/14 06:00 MHDA- 2019/05/08 06:00 CRDT- 2018/12/14 06:00 PHST- 2018/12/14 06:00 [pubmed] PHST- 2019/05/08 06:00 [medline] PHST- 2018/12/14 06:00 [entrez] AID - 10.1123/mc.2017-0027 [doi] PST - ppublish SO - Motor Control. 2019 Apr 1;23(2):216-229. doi: 10.1123/mc.2017-0027. Epub 2018 Dec 12.