TY - JOUR
T1 - Recovery During Successive 120-min Football Games
T2 - Results from the 120-min Placebo/Carbohydrate Randomized Controlled Trial
AU - Ermidis, Georgios
AU - Mohr, Magni
AU - Jamurtas, Athanasios Z
AU - Draganidis, Dimitrios
AU - Poulios, Athanasios
AU - Papanikolaou, Konstantinos
AU - Vigh-Larsen, Jeppe
AU - Loules, Georgios
AU - Sovatzidis, Apostolos
AU - Nakopoulou, Theofano
AU - Tsimeas, Panagiotis
AU - Douroudos, Ioannis I
AU - Papadopoulos, Constantinos
AU - Papadimas, Giorgos
AU - Rosvoglou, Anastasia
AU - Liakou, Christina
AU - Deli, Chariklia K
AU - Georgakouli, Kalliopi
AU - Chatzinikolaou, Athanasios
AU - Krustrup, Peter
AU - Fatouros, Ioannis G
N1 - Copyright © 2024 by the American College of Sports Medicine.
PY - 2024/6/1
Y1 - 2024/6/1
N2 - Purpose This study aimed to examine the recovery kinetics (i.e., time-dependent changes) of performance-related variables between two 120-min male football games performed 3 d apart with and without carbohydrate supplementation. Methods Twenty male players (20 ± 1 yr; body fat, 14.9% ± 5.1%; maximal oxygen consumption, 59.4 ± 3.7 mL·kg
-1·min
-1) participated in two 120-min football games (G1, G2) according to a randomized, two-trial, repeated-measures, crossover, double-blind design. Participants received carbohydrate/placebo supplements during recovery between games. Field activity was monitored during the games. Performance testing and blood sampling were performed before and at 90 and 120 min of each game. Muscle biopsies were collected at baseline and at 90 and 120 min of G1 and pre-G2. Results Compared with G1, G2 was associated with reduced total distance (10,870 vs 10,685 m during 90 min and 3327 vs 3089 m during extra 30 min; P = 0.007-0.038), average (6.7 vs 6.2 km/h during extra 30-min game-play; P = 0.007) and maximal speed (32.2 vs 30.2 km/h during 90 min and 29.0 vs 27.9 km/h during extra 30 min; P < 0.05), accelerations/decelerations (P < 0.05), and mean heart rate (P < 0.05). Repeated sprint ability (P < 0.001), jumping (P < 0.05), and strength (P < 0.001) performance were compromised before and during G2. Muscle glycogen was not restored at G2 baseline (P = 0.005). Extended game-play reduced lymphocyte, erythrocyte counts, hematocrit, hemoglobin, reduced glutathione (P < 0.05) and increased delayed onset of muscle soreness, creatine kinase activity, blood glycerol, ammonia, and protein carbonyls (P < 0.05) before and during G2. Pax7
+ (P = 0.004) and MyoD
+ cells (P = 0.019) increased at baseline G2. Carbohydrate supplementation restored performance and glycogen, reduced glycerol and delayed onset of muscle soreness responses, and increased leukocyte counts and Pax7
+ and MyoD
+ cells. Conclusions Results suggest that extended football games induce a prolonged recovery of performance, which may be facilitated by carbohydrate supplementation during a congested game fixture.
AB - Purpose This study aimed to examine the recovery kinetics (i.e., time-dependent changes) of performance-related variables between two 120-min male football games performed 3 d apart with and without carbohydrate supplementation. Methods Twenty male players (20 ± 1 yr; body fat, 14.9% ± 5.1%; maximal oxygen consumption, 59.4 ± 3.7 mL·kg
-1·min
-1) participated in two 120-min football games (G1, G2) according to a randomized, two-trial, repeated-measures, crossover, double-blind design. Participants received carbohydrate/placebo supplements during recovery between games. Field activity was monitored during the games. Performance testing and blood sampling were performed before and at 90 and 120 min of each game. Muscle biopsies were collected at baseline and at 90 and 120 min of G1 and pre-G2. Results Compared with G1, G2 was associated with reduced total distance (10,870 vs 10,685 m during 90 min and 3327 vs 3089 m during extra 30 min; P = 0.007-0.038), average (6.7 vs 6.2 km/h during extra 30-min game-play; P = 0.007) and maximal speed (32.2 vs 30.2 km/h during 90 min and 29.0 vs 27.9 km/h during extra 30 min; P < 0.05), accelerations/decelerations (P < 0.05), and mean heart rate (P < 0.05). Repeated sprint ability (P < 0.001), jumping (P < 0.05), and strength (P < 0.001) performance were compromised before and during G2. Muscle glycogen was not restored at G2 baseline (P = 0.005). Extended game-play reduced lymphocyte, erythrocyte counts, hematocrit, hemoglobin, reduced glutathione (P < 0.05) and increased delayed onset of muscle soreness, creatine kinase activity, blood glycerol, ammonia, and protein carbonyls (P < 0.05) before and during G2. Pax7
+ (P = 0.004) and MyoD
+ cells (P = 0.019) increased at baseline G2. Carbohydrate supplementation restored performance and glycogen, reduced glycerol and delayed onset of muscle soreness responses, and increased leukocyte counts and Pax7
+ and MyoD
+ cells. Conclusions Results suggest that extended football games induce a prolonged recovery of performance, which may be facilitated by carbohydrate supplementation during a congested game fixture.
KW - Athletic Performance/physiology
KW - Cross-Over Studies
KW - Dietary Carbohydrates/administration & dosage
KW - Dietary Supplements
KW - Double-Blind Method
KW - Glycogen/metabolism
KW - Heart Rate
KW - Humans
KW - Male
KW - Muscle, Skeletal/physiology
KW - Oxygen Consumption
KW - Soccer/physiology
KW - Young Adult
KW - MUSCLE GLYCOGEN RESTORATION
KW - CONGESTED GAME FIXTURE
KW - PERFORMANCE
KW - FOOTBALL OVERTIME
KW - SATELLITE CELLS
KW - INFLAMMATORY RESPONSE
U2 - 10.1249/MSS.0000000000003398
DO - 10.1249/MSS.0000000000003398
M3 - Journal article
C2 - 38306312
SN - 0195-9131
VL - 56
SP - 1094
EP - 1107
JO - Medicine and Science in Sports and Exercise
JF - Medicine and Science in Sports and Exercise
IS - 6
ER -