Post-activation Performance Enhancement in Soccer Players:

NCT ID: NCT06875505

Last Updated: 2025-03-13

Basic Information

• Recruitment Status: ACTIVE_NOT_RECRUITING
• Clinical Phase: NA
• Total Enrollment: 25 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2025-02-20
• Study Completion Date: 2025-04-25

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.

Conditions

Performance; Post Activation Potentiation; Soccer

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: TREATMENT
• Blinding Strategy: TRIPLE

Study Groups

Dynamic PAPE

In this protocol, the load determined for footballers during knee extension will be applied as 90% of their one repetition maximum (1TM). After the standard warm-up session at the beginning, the protocol will be performed by performing 1 set of 3 repetitions with the previously determined 1TM 90% load without resting between repetitions.

Group Type: EXPERIMENTAL

Dynamic PAPE

Intervention Type: OTHER

In this protocol, the load determined for footballers during knee extension will be applied as 90% of their one repetition maximum (1TM). After a standard warm-up session at the beginning, the protocol will be performed by performing 1 set of 3 repetitions with the previously determined 1TM 90% load without resting between repetitions. Isometric knee extension exercise will be used in the protocol. The movement will be performed sitting, in a position suitable for limb lengths and in a controlled manner using a leg extension machine. At the beginning of the movement, the knees will be flexed 90° and the adjustable lever arm of the machine will be fixed at this angle. Then they will be asked to perform bilateral isometric knee extension until the knees form a 180° angle. They will also be verbally motivated to complete the knee extension exercise.

Isometric PAPE

Isometric contraction will be used in the protocol. On the leg extension machine, the protocol will be performed by applying 3 sets of 3 seconds against only the lever arm with 1TM 90% load, 2 minutes rest will be applied between sets.

Group Type: EXPERIMENTAL

Isometric PAPE

Intervention Type: OTHER

Isometric contraction will be used in the protocol. On the leg extension machine, the protocol will be performed by applying 3 sets of 3 seconds against the lever arm only with 1TM 90% load, 2 minutes rest will be applied between sets. Isometric knee extension exercise will be used in the protocol. The movement will be performed sitting, in a position suitable for limb lengths and in a controlled manner using a leg extension machine. At the beginning of the movement, the knees will be flexed 90° and the adjustable lever arm of the machine will be fixed at this angle. Then they will be asked to perform bilateral isometric knee extension until the knees form a 180° angle. They will also be verbally motivated to complete the knee extension exercise.

Interventions

Dynamic PAPE

In this protocol, the load determined for footballers during knee extension will be applied as 90% of their one repetition maximum (1TM). After a standard warm-up session at the beginning, the protocol will be performed by performing 1 set of 3 repetitions with the previously determined 1TM 90% load without resting between repetitions. Isometric knee extension exercise will be used in the protocol. The movement will be performed sitting, in a position suitable for limb lengths and in a controlled manner using a leg extension machine. At the beginning of the movement, the knees will be flexed 90° and the adjustable lever arm of the machine will be fixed at this angle. Then they will be asked to perform bilateral isometric knee extension until the knees form a 180° angle. They will also be verbally motivated to complete the knee extension exercise.

Intervention Type: OTHER

Isometric PAPE

Isometric contraction will be used in the protocol. On the leg extension machine, the protocol will be performed by applying 3 sets of 3 seconds against the lever arm only with 1TM 90% load, 2 minutes rest will be applied between sets. Isometric knee extension exercise will be used in the protocol. The movement will be performed sitting, in a position suitable for limb lengths and in a controlled manner using a leg extension machine. At the beginning of the movement, the knees will be flexed 90° and the adjustable lever arm of the machine will be fixed at this angle. Then they will be asked to perform bilateral isometric knee extension until the knees form a 180° angle. They will also be verbally motivated to complete the knee extension exercise.

Intervention Type: OTHER

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

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 24 Years
• Eligible Sex: MALE
• Accepts Healthy Volunteers: Yes

Sponsors

Karabuk University

OTHER

Sponsor Role: lead

Responsible Party

Neslihan AKÇAY

Assoc. Prof. Dr

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Neslihan Akçay

Role: STUDY_CHAIR

Karabuk University

Locations

Karabuk University

Karabük, Turkey, Turkey (Türkiye)

Countries

Turkey (Türkiye)

References

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.

Reference Type: BACKGROUND

PMID: 28166184 (View on PubMed)

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.

Reference Type: BACKGROUND

PMID: 39360986 (View on PubMed)

Other Identifiers

UKarabuk-3

Identifier Type: -

Identifier Source: org_study_id