Effects of a Short-Term Detraining Period on the Strength Deficit and Functional Performance of Highly Trained Soccer Players

Loturco, Irineu; Grazioli, Rafael; Veeck, Filipe; Nakamura, Fábio Yuzo; Inácio, Martinho; Schons, Pedro; Preissler, Artur Avelino Birk; Pinto, Ronei Silveira; Pereira, Lucas A.; McGuigan, Michael R.; Cadore, Eduardo Lusa

doi:10.1519/jsc.0000000000004496

Cited by 6 publications

(4 citation statements)

References 45 publications

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“…Results of the present study showed greater performance in variables related to high-speed running over 21 km/h, greater performance in most of the sprinting variables and greater performance in deceleration variables. The results of the present work are in line with findings that neuromuscular performance after short-term detraining could be enhanced (20,21), Nonetheless, the detraining period in this study should be understood as a break of competitive matches, since on-field training continued in this period. To the best of our knowledge, this is the first study in assessing the differences in external load parameters after a cessation of the competition but not in training.…”

Section: Discussionsupporting

confidence: 90%

“…If training loads are not well managed, this period could partially detrain World Cup non-participants. Short detraining periods of 2-4 weeks have demonstrated to not affect maximal neuromuscular responses in soccer players (20,21). However, they could have a negative impact on repeated sprint ability (RSA) (22,23) or body composition (24).…”

Section: Introductionmentioning

confidence: 99%

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Analyzing the impact of non-participation in the FIFA World Cup Qatar 2022 on LaLiga players' physical performance

Reverte-Pagola,

Pecci,

del Ojo-López

et al. 2024

Front. Sports Act. Living

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BackgroundMonitoring external load demands in soccer is crucial for optimizing performance and reducing injury risk. However, events like the FIFA World Cup Qatar 2022 and unexpected interruptions can disrupt load management strategies. Understanding the impact of such events on player performance is essential for effective training and recovery strategies.ObjectiveThis study retrospectively assessed the impact of the FIFA World Cup Qatar 2022 on the physical performance of LaLiga elite soccer players who were not part of the tournament. The aim was to analyze various external load parameters and determine the direction of their changes post-tournament.MethodsData from 239 LaLiga players who were not selected for the World Cup were analyzed. External load parameters from 8 matches before and after the tournament were compared. Statistical analyses, including repeated measures ANOVA, were conducted to evaluate changes in performance metrics.ResultsMinutes played and total distance covered showed no significant changes post-tournament. However, maximal speed decreased significantly (p < 0.001; η2p = 0.117). High-speed running parameters improved significantly (p < 0.05), except for HSRRelCount (p = 0.074; η2p = 0.013). Sprint-related variables demonstrated significant enhancements, except for SprintAbsAvgDuration, SprintMaxAvgDuration, and Sprints >85% Vel Max. Acceleration metrics showed significant improvements in Accel_HighIntensityAccAbsCount (p = 0.024; η2p = 0.021), while Accel_Accelerations showed no significant changes. Deceleration metrics remained unchanged, but Accel_HighIntensityDecAbsCount and Accel_HighIntensityDecAbsDistance increased significantly post-tournament (p = 0.002; η2p = 0.040, p = 0.001; η2p = 0.044, respectively).ConclusionNon-participant LaLiga players demonstrated enhanced performance in most external load metrics after the FIFA World Cup Qatar 2022. These findings highlight the importance of effective load management during periods of competition interruption and suggest strategies to optimize performance and reduce injury risk. Further research should consider holistic performance metrics and internal load parameters to provide comprehensive insights into player response to mid-season tournaments.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Analyzing the impact of non-participation in the FIFA World Cup Qatar 2022 on LaLiga players' physical performance

Reverte-Pagola,

Pecci,

del Ojo-López

et al. 2024

Front. Sports Act. Living

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“…Indeed, velocities for breast cancer survivors along the L-V spectrum (MPV Test =0.59 m·s −1 ) would also coincide with that reported for stronger and young women (MPV Test =0.60 m·s −1 ) 19 . Although more research is needed, these findings indicate that the physiological effects of breast cancer surgery and adjuvant therapy could affect upper-limb strength in absolute terms but not the force applied relative to the maximal force capacity (i. e., strength deficit 27 ). Similarly, velocity attained at 1RM load (i. e., MPV 1RM ) was identical for both the groups of women we included as well as for the aforementioned stronger young women (MPV 1RM =0.17 m·s −1 ) 19 .…”

Section: Discussionmentioning

confidence: 92%

Load-velocity Relationship of the Bench Press Exercise is not Affected by Breast Cancer Surgery and Adjuvant Therapy

Franco-López,

Pérez-Caballero,

Buendía-Romero

et al. 2023

Int J Sports Med

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We examined the effect of breast cancer surgery and adjuvant therapy on the relationship between bar velocity and relative intensity (load-velocity [L-V] relationship) of the bench press (BP) exercise. Twenty-two breast cancer survivors (age: 48.0±8.2 yr., relative strength: 0.40±0.08) completed a loading test up to the one-repetition maximum (1RM) in the BP using a lightweight carbon bar. General and individual relationships between relative intensity (%1RM) and mean propulsive velocity (MPV) were studied. Furthermore, the mean test velocity (MPVTest) and velocity attained to the 1RM (MPV1RM) were analyzed. These procedures and analyses were also conducted in 22 healthy women (age: 47.8±7.1 yr., relative strength: 0.41±0.09) to examine the differences in velocity parameters derived from these L-V relationships. Polynomial regressions showed very close relationships (R2≥0.965) and reduced estimation errors (≤4.9% 1RM) for both groups. Between-group differences in MPV attained to each %1RM were small (≤0.01 m·s−1) and not significant (p≥0.685). Similarly, the MPVTest (0.59±0.06 m·s−1) and MPV1RM (0.17±0.03 m·s−1) were identical for breast cancer survivors and healthy women. These results suggest that practitioners could use the same velocity parameters derived from the BP L-V relationship to prescribe this exercise in middle-aged women, regardless of whether they have suffered from breast cancer.

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“…Similarly, a study on elite female soccer players indicated reductions in VO2max, running time on the treadmill, and quadriceps torque following a 4-week transition period with concurrent increases in body weight and body fat percentage [ 21 ]. On the contrary, a recent study indicated that highly trained soccer players were not only able to maintain satisfactory levels of performance but also some strength and power parameters improved significantly after the transition period [ 22 ].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Variation and the Effect of the Transition Period on Physical Fitness Parameters in Youth Female Soccer Players

Parpa,

Katanic,

Michaelides

2024

Sports

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This study examined seasonal variation and the effect of the transition period on physical fitness parameters in female youth soccer players. Twenty-four players (13–17 years old) were assessed through field and laboratory testing. They completed laboratory testing three times: (1) at the beginning of the season (post-preseason), (2) at the end of the regular season (postseason), and (3) following the transition period (preseason). Field testing was conducted post-preseason and postseason. Results indicated that weight and body fat significantly increased from post-preseason to postseason and following the transition period. A paired samples T-test revealed that the players performed significantly better in the vertical jump and 30 m sprint test (all p < 0.01) postseason compared to post-preseason. Also, it was indicated that torque production for the right quadriceps, left quadriceps, and right hamstring (all p < 0.01) was significantly reduced after the transition period by 10%, 11.8%, and 10.5%, respectively. Cardiorespiratory measurements demonstrated that performance on an incremental cardiopulmonary treadmill test, maximal oxygen consumption, velocity at the first ventilatory threshold, velocity at the second ventilatory threshold, and velocity at maximal oxygen consumption (all p < 0.01) were significantly reduced postseason and following the transition period. Based on the results, coaches and trainers should primarily focus on maintaining the aerobic capacity of the players during the season, as it has been indicated to be reduced from the beginning to the end of the competitive period (VO2max reduced by 3.3%). In addition, they should focus on maintaining lower body strength and aerobic capacity during the transition period.

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Effects of a Short-Term Detraining Period on the Strength Deficit and Functional Performance of Highly Trained Soccer Players

Cited by 6 publications

References 45 publications

Analyzing the impact of non-participation in the FIFA World Cup Qatar 2022 on LaLiga players' physical performance

Analyzing the impact of non-participation in the FIFA World Cup Qatar 2022 on LaLiga players' physical performance

Load-velocity Relationship of the Bench Press Exercise is not Affected by Breast Cancer Surgery and Adjuvant Therapy

Seasonal Variation and the Effect of the Transition Period on Physical Fitness Parameters in Youth Female Soccer Players

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