Effect of PAP on Lower Limb Explosive Force in Basketball Players in CHINA

Not Applicable

Recruiting

• Conditions: Physical Fitness
• Interventions: Behavioral: PAP induced at an intensity of 70% 1RM combined with complex training; Behavioral: Routine warm-up combined with complex training; Behavioral: PAP induced at an intensity of 80% 1RM combined with complex training; Behavioral: PAP induced at an intensity of 90% 1RM combined with complex training

• Registration Number: NCT06083532
• Lead Sponsor: Universiti Putra Malaysia

Brief Summary

The phenomenon that high-intensity warm-up activities help improve muscle strength and explosive performance is called post-activation potentiation (PAP), which is a warm-up method that uses high-intensity stimulation to induce the activation of more type II muscle fibers. However, the results of studies exploring the enhancing effect of PAP on lower limb explosive strength are still controversial. In studies with no significant difference, it is believed that there are many factors that affect PAP, such as activation method, activation intensity, recovery time and individual factors, etc., and it is difficult to control during implementation. In addition, traditional warm-up methods such as jogging and stretching have been shown to have limited effectiveness in improving athletes' performance. In the past, there have been many studies on the combination of PAP and lower limb explosive strength, but there are almost no studies on the long-term effects of PAP on the lower limb explosive strength of basketball players. Therefore, this study studies the characteristics of PAP in order to find the best activation scheme for PAP, and then combines the enhancement effect of PAP with the explosive power of the lower limbs to improve the explosive power of the lower limbs of basketball players, and verifies the long-term effect of combining PAP with explosive power training. In order to provide new changes and breakthroughs in the design of physical training for basketball players and improve the sports performance of college male basketball players.

Detailed Description

The study was a four-groups randomized controlled trial. In the study, the experimental group conducted a 12-week post-activation potentiation combined with lower limb explosive training intervention designed in this study. In contrast, the control group also underwent a 12-week lower limb explosive training intervention, but the warm-up method was conventional warm-up activities. Subjects participated in training intervention programs twice weekly. After the 12-week training program, data collection was completed.

1. Warm-up content： The experimental group used PAP as a warm-up method and performed pre-stimulation to induce post-activation potentiation. The pre-activation method is back squats. The pre-activation intensity and frequency are 70% 1RM （One-Repetition Maximum） × 3, 80% 1RM × 2, 90% 1RM × 1 respectively, and the interval time is 2 minutes. The control group performed routine warm-up activities.

2. Explosive strength training content for lower limbs： After completing the warm-up activities, there was a six-minute interval, and then the experimental group and the control group began the same explosive training content of the lower limbs.

Study Timeline

• Study Start: 2023-09-15
• Status Verified: 2023-10
• Study First Submitted: 2023-10-02
• Study First Submitted QC: 2023-10-08
• Last Update Submitted: 2023-10-08
• Study First Posted: 2023-10-16
• Last Update Posted: 2023-10-16
• Primary Completion: 2024-01-20
• Study Completion: 2024-02-15

Recruitment & Eligibility

• Status: RECRUITING
• Sex: Male
• Target Recruitment: 48

Inclusion Criteria

• The population must be collegiate male basketball players and between the ages of 18 and 22；
• Contestants must be in good health, and must have a physical training background；
• Only students who can complete these training requirements can be included in the research data.

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Exclusion Criteria

• Collegiate female basketball players should be excluded from this study;
• Players with less than one year of physical training experience;
• Participants were not healthy collegiate male basketball players such as injured players, mental patient or special students who were seriously depressed, sub-health;
• Students who are consistently late or absent from training sessions will eventually be excluded.

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
PAP induced at an intensity of 70% 1RM（One-Repetition Maximum）combined with complex training	PAP induced at an intensity of 70% 1RM combined with complex training	PAP induced at an intensity of 70% 1RM combined with complex training was shown over the 12 weeks.
Routine warm-up combined with complex training	Routine warm-up combined with complex training	Routine warm-up combined with complex training was shown over the 12 weeks.
PAP induced at an intensity of 80% 1RM combined with complex training	PAP induced at an intensity of 80% 1RM combined with complex training	PAP induced at an intensity of 80% 1RM combined with complex training was shown over the 12 weeks.
PAP induced at an intensity of 90% 1RM combined with complex training	PAP induced at an intensity of 90% 1RM combined with complex training	PAP induced at an intensity of 90% 1RM combined with complex training was shown over the 12 weeks.

Primary Outcome Measures

Name	Time	Method
Counter Movement Jump performance of subjects （height）	Pre-test: Before experiment; Post-test: 12 weeks end.	This indicator is used to test the explosive force of the lower body. And by measuring it, we can get its jump height, Rate of Force Development, the Peak Rate Force Development, Peak Power, the Peak Ground Vertical Reaction Force, which are used to analyze the changes in the explosive force of the lower limbs in detail.
30-meter sprint performance of subjects（time）	Pre-test: Before experiment; Post-test: 12 weeks end.	By testing the subject's 30-meter sprint time, changes in the explosive power of the lower limbs can be observed.
Run-up right-foot take-off, Run-up left-foot take-off performance of subjects（height）	Pre-test: Before experiment; Post-test: 12 weeks end.	This indicator is used to test the explosive force of the lower body. And by measuring it, we can get its jump height, Rate of Force Development, the Peak Rate Force Development, Peak Power, the Peak Ground Vertical Reaction Force, which are used to analyze the changes in the explosive force of the lower limbs in detail.
Drop Jump performance of subjects （height）	Pretest: Before experiment; Post-test: 12 weeks end.	This indicator is used to test the explosive force of the lower body. And by measuring it, we can get its jump height, Rate of Force Development, the Peak Rate Force Development, Peak Power, the Peak Ground Vertical Reaction Force, which are used to analyze the changes in the explosive force of the lower limbs in detail.
Squat Jump performance of subjects （height）	Pre-test: Before experiment; Post-test: 12 weeks end.	This indicator is used to test the explosive force of the lower body. And by measuring it, we can get its jump height, Rate of Force Development, the Peak Rate Force Development, Peak Power, the Peak Ground Vertical Reaction Force, which are used to analyze the changes in the explosive force of the lower limbs in detail.

Trial Locations

Locations (1)

Wuhan Sports University; 🇨🇳 Wuhan, Hubei, China