Clinical trial NCT06875505: Post-activation Performance Enhancement in Soccer Players:
Official title: Post-activation Performance Enhancement in Soccer Players: The Effect of Different Contraction and Rest Periods on Changing Direction Ability
Study type: INTERVENTIONAL
Overall status: ACTIVE_NOT_RECRUITING
Phase: NA
Conditions: Performance
Post Activation Potentiation
Soccer
Keywords: Soccer
Post activation Performance Enhancement
Dynamic Contraction
Isometric contraction
Lead sponsor: Karabuk University
Sponsor class: OTHER
First posted: 2025-03-13
Enrollment: 25
Sex: MALE
Minimum age (years): 18
Maximum age (years): 24
Standard ages: ADULT
Accepts healthy volunteers: yes
Allocation: RANDOMIZED
Intervention model: CROSSOVER
Primary purpose: TREATMENT

Brief summary: This study will be conducted in a randomised, crossover design. Soccer players will participate in two test sessions 48 hours apart. The athletes will be pre-tested in the professional direction change test and after the PAPE protocol of the group they are included in is applied, they will be taken to the professional direction change test at 15th second, 3rd, 6th, 9th and 12th minutes.

Detailed description: This study will be conducted in a randomised, crossover design. Subjects will participate in two test sessions 48 hours apart. To eliminate the effect of fatigue, participants will be warned not to engage in intense physical activity before the study days and to pay attention to adequate carbohydrate intake so that repeated sprint performance will not be affected. On the 1st day of the study, after the participants were informed about the study, their heights will be recorded with a height meter, and their weights and body fat percentages will be taken with the Inbody 270 device. After the descriptive characteristics of all participants are obtained, the warm-up protocol will be applied and 1 RM will be determined and recorded by performing knee extension movement on the Knee Extension device. On the second day of the study, all athletes will be pre-tested in the professional change of direction test and will be taken to the professional change of direction test at 15 seconds, 3 minutes, 6 minutes, 9 minutes and 12 minutes after the PAPE protocol of the group they are included in is applied. On the third day of the study, the pre-tests of all athletes in the professional direction change test will be taken again and they will be taken to the professional direction change test at 15 seconds, 3rd, 6th, 9th and 12th minutes after the PAPE protocol of the group they are included in is applied. Participants will be asked to stop eating 1.5 hours before the measurement time. Athletes will be allowed to drink water (500ml) during the test and will be verbally motivated during the professional change of direction test.

Eligibility criteria: Inclusion Criteria:

* Being healthy
* Male soccer players
* Willing to maintain the intervention for all sessions

Exclusion Criteria:

* Under 18 years of age
* Having a chronic disease
* Contraindications for exercise

Primary outcomes:
measure: Significant difference in dynamic condition
timeFrame: From baseline to the end of measurement at 1 weeks
measure: Significant difference in isometric condition
timeFrame: From baseline to the end of measurement at 1 weeks
measure: The time between the conditions is different
timeFrame: From baseline to the end of measurement at 1 weeks.
Secondary outcomes:
Other outcomes:
measure: Anthropometric Measurements 1
timeFrame: Baseline
measure: Anthropometric Measurements 2
timeFrame: Baseline
measure: Anthropometric Measurements 3
timeFrame: Baseline
measure: Anthropometric Measurements 4
timeFrame: Baseline
measure: Knee Extension 1Repetition maximum Test
timeFrame: Baseline
Locations:
city: Karabük
country: Turkey
facility: Karabuk University
Study officials:
affiliation: Karabuk University
name: Neslihan Akçay
role: STUDY_CHAIR
References:
citation: Marshall J, Turner AN, Jarvis PT, Maloney SJ, Cree JA, Bishop CJ. Postactivation Potentiation and Change of Direction Speed in Elite Academy Rugby Players. J Strength Cond Res. 2019 Jun;33(6):1551-1556. doi: 10.1519/JSC.0000000000001834.
citation: Keskin K, Akcay N, Ozmen T, Contarli N, Yildiz KC, Sofuoglu C, Kamis O, Rolnick N, de Queiros VS, Montoye A. Effects of different pre-exercise strategies on jumping performance in female volleyball players. J Sports Med Phys Fitness. 2025 Jan;65(1):59-68. doi: 10.23736/S0022-4707.24.16196-8. Epub 2024 Oct 3.