PMID- 36062208
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20221221
IS  - 0765-1597 (Print)
IS  - 0765-1597 (Electronic)
IS  - 0765-1597 (Linking)
VI  - 37
IP  - 7
DP  - 2022 Nov
TI  - Effects of a shock microcycle after COVID-19 lockdown period in elite soccer 
      players.
PG  - 572-580
LID - 10.1016/j.scispo.2022.07.004 [doi]
AB  - OBJECTIVES: Decreases in physical fitness are inevitable after two to six week 
      period of detraining in athletes. Lockdown period changed the characteristics of 
      soccer players' training. AIM OF THE STUDY: The aim of our study was to apply a 
      HIIT shock-microcycle (SM) after return to training and assess its effect on 
      players' performance. EQUIPMENT AND METHODS: Nineteen elite professional soccer 
      players during the lockdown period (LP) from March to May 2020 (8 weeks) 
      performed 3-4 individual training sessions per week. The training sessions 
      included running boots of anaerobic short and aerobic prolonged duration 
      intervals. Intensity was determined according to lab ergospirometry test 2 weeks 
      before LP. All the players followed an indoor program, 3-6 sessions per week 
      consisted of core, balance and flexibility exercises ( approximately 45 minutes). SM training 
      content was same for both groups and took place the first two weeks after LP, 
      consisted by eight high intensity interval training sessions (HIIT), two 
      technique, two tactical sessions and two days off. RESULTS: Repeated sprint 
      ability mean time (RSA(MeanTime)) and Repeated sprint ability performance-sprint 
      no 4,5,6 (RSA(4,5,6S)) improved after SM (P = 0.025, Effect size: r(2) = 0.331, 
      P = 0.010, Effect size: r(2) = 0.411, p = 0.009, Effect size: r(2) = 0.418, 
      P = 0.037, Effect size: r(2) = 0.293, respectively. Yo-Yo intermitted recovery 
      test level 2 (YYIR2(TotalDistance)) that covered by players during the 2nd 
      measurement was 10.8% longer (P = 0.004, Effect size: r(2) = 0.483). Also, the 
      YYIR2(HeartRateRecovery) percentage was lower during the 2nd measurement 
      (P = 0.014, Effect size: r(2) = 0.107). CONCLUSIONS: These results indicate that 
      SM can improve YYIR2 and RSA performance thus it is a useful tool to regain 
      physical attributes in a short period.
CI  - (c) 2022 Elsevier Masson SAS. All rights reserved.
FAU - Vardakis, L
AU  - Vardakis L
AD  - Laboratory of Evaluation of Human Biological Performance, Department of Physical 
      Education and Sports Sciences, Aristotle University of Thessaloniki, New 
      Buildings of Laboratories, P.O. 57001, University Campus of Thermi, Thessaloniki, 
      Greece.
FAU - Michailidis, Y
AU  - Michailidis Y
AD  - Laboratory of Evaluation of Human Biological Performance, Department of Physical 
      Education and Sports Sciences, Aristotle University of Thessaloniki, New 
      Buildings of Laboratories, P.O. 57001, University Campus of Thermi, Thessaloniki, 
      Greece.
FAU - Mandroukas, A
AU  - Mandroukas A
AD  - Physical Education and Sport, Charles University, Prague, Czech Republic.
FAU - Zelenitsas, C
AU  - Zelenitsas C
AD  - Section of Sport Medicine and Biology of Exercise, School of Physical Education 
      and Sport Science, National and Kapodistrian University of Athens, Athens, 
      Greece.
FAU - Mavrommatis, G
AU  - Mavrommatis G
AD  - Laboratory of Evaluation of Human Biological Performance, Department of Physical 
      Education and Sports Sciences, Aristotle University of Thessaloniki, New 
      Buildings of Laboratories, P.O. 57001, University Campus of Thermi, Thessaloniki, 
      Greece.
FAU - Metaxas, T
AU  - Metaxas T
AD  - Laboratory of Evaluation of Human Biological Performance, Department of Physical 
      Education and Sports Sciences, Aristotle University of Thessaloniki, New 
      Buildings of Laboratories, P.O. 57001, University Campus of Thermi, Thessaloniki, 
      Greece.
LA  - eng
PT  - Journal Article
DEP - 20220829
PL  - France
TA  - Sci Sports
JT  - Science & sports
JID - 8707523
PMC - PMC9420708
OTO - NOTNLM
OT  - COVID-19
OT  - Elite players
OT  - High intensity training
OT  - Microcycle
OT  - Soccer
EDAT- 2022/09/06 06:00
MHDA- 2022/09/06 06:01
PMCR- 2022/08/29
CRDT- 2022/09/05 04:22
PHST- 2021/03/22 00:00 [received]
PHST- 2022/07/13 00:00 [accepted]
PHST- 2022/09/06 06:00 [pubmed]
PHST- 2022/09/06 06:01 [medline]
PHST- 2022/09/05 04:22 [entrez]
PHST- 2022/08/29 00:00 [pmc-release]
AID - S0765-1597(22)00176-9 [pii]
AID - 10.1016/j.scispo.2022.07.004 [doi]
PST - ppublish
SO  - Sci Sports. 2022 Nov;37(7):572-580. doi: 10.1016/j.scispo.2022.07.004. Epub 2022 
      Aug 29.