PMID- 34023754
OWN - NLM
STAT- MEDLINE
DCOM- 20230522
LR  - 20230522
IS  - 1873-2380 (Electronic)
IS  - 0021-9290 (Linking)
VI  - 123
DP  - 2021 Jun 23
TI  - Individual acceleration-speed profile in-situ: A proof of concept in professional 
      football players.
PG  - 110524
LID - S0021-9290(21)00305-5 [pii]
LID - 10.1016/j.jbiomech.2021.110524 [doi]
AB  - Assessing football players' sprint mechanical outputs is key to the performance 
      management process (e.g. talent identification, training, monitoring, 
      return-to-sport). This is possible using linear sprint testing to derive 
      force-velocity-power outputs (in laboratory or field settings), but testing 
      requires specific efforts and the movement assessed is not specific to the 
      football playing tasks. This proof-of-concept short communication presents a 
      method to derive the players' individual acceleration-speed (AS) profile in-situ, 
      i.e. from global positioning system data collected over several football sessions 
      (without running specific tests). Briefly, raw speed data collected in 16 
      professional male football players over several training sessions were plotted, 
      and for each 0.2 m/s increment in speed from 3 m/s up to the individual top-speed 
      reached, maximal acceleration output was retained to generate a linear AS 
      profile. Results showed highly linear AS profiles for all players (all 
      R(2) > 0.984) which allowed to extrapolate the theoretical maximal speed and 
      accelerations as the individual's sprint maximal capacities. Good reliability was 
      observed between AS profiles determined 2 weeks apart for the players tested, and 
      further research should focus on deepening our understanding of these 
      methodological features. Despite the need for further explorations (e.g. 
      comparison with conceptually close force-velocity assessments that require, 
      isolated and not football-specific linear sprint tests), this in-situ approach is 
      promising and allows direct assessment of football players within their specific 
      acceleration-speed tasks. This opens several perspectives in the performance and 
      injury prevention fields, in football and likely other sprint-based team sports, 
      and the possibility to "test players without testing them".
CI  - Copyright (c) 2021. Published by Elsevier Ltd.
FAU - Morin, Jean-Benoit
AU  - Morin JB
AD  - Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la 
      Motricite, EA 7424, F-42023 Saint-Etienne, France. Electronic address: 
      jean.benoit.morin@univ-st-etienne.fr.
FAU - Le Mat, Yann
AU  - Le Mat Y
AD  - Univ Lyon, UJM-Saint-Etienne, Laboratoire Interuniversitaire de Biologie de la 
      Motricite, EA 7424, F-42023 Saint-Etienne, France.
FAU - Osgnach, Cristian
AU  - Osgnach C
AD  - Department of Sport Science, Exelio SRL, Udine, Italy.
FAU - Barnabo, Andrea
AU  - Barnabo A
AD  - Department of Sport Science, Exelio SRL, Udine, Italy.
FAU - Pilati, Alessandro
AU  - Pilati A
AD  - Performance Department, Genoa CFC, Genova, Italy.
FAU - Samozino, Pierre
AU  - Samozino P
AD  - Univ Savoie Mont Blanc, Laboratoire Interuniversitaire de Biologie de la 
      Motricite, EA 7424, F-73000 Chambery, France.
FAU - di Prampero, Pietro E
AU  - di Prampero PE
AD  - Department of Sport Science, Exelio SRL, Udine, Italy; Emeritus Professor of 
      Physiology, University of Udine, Italy.
LA  - eng
PT  - Journal Article
DEP - 20210515
PL  - United States
TA  - J Biomech
JT  - Journal of biomechanics
JID - 0157375
SB  - IM
MH  - Humans
MH  - Male
MH  - Acceleration
MH  - *Athletic Performance
MH  - Reproducibility of Results
MH  - *Soccer
OTO - NOTNLM
OT  - GPS
OT  - Running
OT  - Soccer
OT  - Sprint
OT  - Testing
EDAT- 2021/05/24 06:00
MHDA- 2021/07/02 06:00
CRDT- 2021/05/23 20:55
PHST- 2020/10/16 00:00 [received]
PHST- 2021/05/06 00:00 [revised]
PHST- 2021/05/09 00:00 [accepted]
PHST- 2021/05/24 06:00 [pubmed]
PHST- 2021/07/02 06:00 [medline]
PHST- 2021/05/23 20:55 [entrez]
AID - S0021-9290(21)00305-5 [pii]
AID - 10.1016/j.jbiomech.2021.110524 [doi]
PST - ppublish
SO  - J Biomech. 2021 Jun 23;123:110524. doi: 10.1016/j.jbiomech.2021.110524. Epub 2021 
      May 15.