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Effects of a shock microcycle after COVID-19 lockdown period in elite soccer players.
Vardakis, L; Michailidis, Y; Mandroukas, A; Zelenitsas, C; Mavrommatis, G; Metaxas, T.
  • Vardakis L; 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.
  • Michailidis Y; 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.
  • Mandroukas A; Physical Education and Sport, Charles University, Prague, Czech Republic.
  • Zelenitsas C; Section of Sport Medicine and Biology of Exercise, School of Physical Education and Sport Science, National and Kapodistrian University of Athens, Athens, Greece.
  • Mavrommatis G; 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.
  • Metaxas T; 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.
Sci Sports ; 37(7): 572-580, 2022 Nov.
Article in English | MEDLINE | ID: covidwho-2004483
ABSTRACT

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 (∼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 (RSAMeanTime) and Repeated sprint ability performance-sprint no 4,5,6 (RSA4,5,6S) improved after SM (P = 0.025, Effect size r2 = 0.331, P = 0.010, Effect size r2 = 0.411, p = 0.009, Effect size r2 = 0.418, P = 0.037, Effect size r2 = 0.293, respectively. Yo-Yo intermitted recovery test level 2 (YYIR2TotalDistance) that covered by players during the 2nd measurement was 10.8% longer (P = 0.004, Effect size r2 = 0.483). Also, the YYIR2HeartRateRecovery percentage was lower during the 2nd measurement (P = 0.014, Effect size r2 = 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.
Objectifs L'altération des capacités physiques est inévitable après une période de deux à six semaines d'absence d'entraînement chez les athlètes. La période de confinement due au COVID19 a changé les caractéristiques de la préparation des joueurs de football. But de l'étude Le but de notre étude était d'appliquer un microcycle d'entrainement fractionné de haute intensité (HIIT, ou microcycle de choc SM), après le retour à l'entraînement, et d'évaluer ses effets sur les performances des joueurs. Matériel et méthodes Dix-neuf footballeurs professionnels d'élite ont effectué 3-4 séances d'entraînement individuel par semaine pendant la période de confinement de mars à mai 2020 (LP, 8 semaines). Les séances prévoyaient des exercices de courses à pied par intervalles, de courte et longue durée. L'intensité des exercices évaluée par des tests d'ergospirométrie en laboratoire deux semaines avant la LP. Tous les joueurs ont suivi le programme en salle close (3­6 séances par semaine) comprenant des exercices de base, d'équilibre et de flexibilité (∼45 minutes). Le contenu du HIIT était le même pour les deux groupes et a débuté après la LP, pendant les deux semaines suivant l'entraînement et comprenant 8 sessions de HIIT, 2 sessions d'entrainement technique, 2 sessions de tactiques et 2 jours de congé. Résultats RSAMeanTime et RSA4,5,6S testé après le HIIT (p = 0.025, p = 0,010, p = 0,009, p = 0,037 respectivement. YYIR2Total Distance la distance totale parcourue par les joueurs durant la seconde évaluation était plus longue de 10,8 % (p = 0,004). De même, le pourcentage de YYIR2HeartRateRecovery était plus bat durant la seconde évaluation (p = 0,014).

Conclusions:

Les résultats de l'étude ont démontré que le SM peut améliorer les performances YYIR2 et RSA, et constitue une arme utile pour la régénération des aptitudes physiques dans un espace limité.
Keywords

Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Randomized controlled trials Language: English Journal: Sci Sports Year: 2022 Document Type: Article Affiliation country: J.scispo.2022.07.004

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Randomized controlled trials Language: English Journal: Sci Sports Year: 2022 Document Type: Article Affiliation country: J.scispo.2022.07.004