The Acute Effects of Static and PNF Stretching Exercise With Blood Flow Restriction in Athletes

NCT ID: NCT06656858

Last Updated: 2024-10-24

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 109 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2019-08-20
• Study Completion Date: 2023-08-25

Brief Summary

The study aims to examine the acute effects of static and proprioceptive neuromuscular facilitation stretching exercises with blood flow restriction on hamstring flexibility, muscle strength, and single leg hop in athletes. Outcome measures were hip range of motion, isometric and eccentric hamstring muscle strength, and single leg hop distance.

Detailed Description

A total of 109 athletes were included in the study. Participants were randomized into five groups: (1) static stretching, (2) proprioceptive neuromuscular facilitation (PNF) stretching, (3) blood flow restriction (BFR) + static stretching, (4) BFR + PNF stretching, and (5) control groups. Stretching exercises were performed on the dominant leg hamstring muscle group for 3 sets of 15 seconds each. BFR was applied during the stretching to the blood flow restriction (BFR) + static stretching and BFR + PNF stretching groups. No stretching was applied to the control group.

Assessments were performed at baseline and immediately after stretching. Hamstring flexibility (hip joint range of motion) was assessed via the passive straight leg raise test. Isometric and eccentric hamstring muscle strength were measured using a hand-held dynamometer, and muscle power was assessed using the single leg hop distance.

Conditions

Athletes

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: SINGLE

Study Groups

Static stretching

Static stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds.

Group Type: ACTIVE_COMPARATOR

Static stretching

Intervention Type: OTHER

Static stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds

PNF stretching

PNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds.

Group Type: ACTIVE_COMPARATOR

PNF stretching

Intervention Type: OTHER

PNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds.

Static stretching with BFR

Static stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application.

Group Type: EXPERIMENTAL

Static stretching with BFR

Intervention Type: OTHER

Static stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application.

PNF stretching with BFR

PNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application

Group Type: EXPERIMENTAL

PNF stretching with BFR

Intervention Type: OTHER

PNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application.

Control

No stretching was applied to the control group. An information brochure about hamstring injuries was provided to the participants.

Group Type: OTHER

Control

Intervention Type: OTHER

No stretching was applied to the control group. An information brochure about hamstring injuries was provided to the participants.

Interventions

Static stretching

Static stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds

Intervention Type: OTHER

PNF stretching

PNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds.

Intervention Type: OTHER

Static stretching with BFR

Static stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application.

Intervention Type: OTHER

PNF stretching with BFR

PNF stretching exercises were performed on the dominant leg's hamstring muscle group for 3 sets of 15 seconds with BFR application.

Intervention Type: OTHER

Control

No stretching was applied to the control group. An information brochure about hamstring injuries was provided to the participants.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Age between 18-40 years old
• Engaged in regular physical activity for at least 8 hours a week for the last 6 months
• Body mass index (BMI) < than 30 kg/m²
• Momentary blood pressure less than 135/85 mmHg

Exclusion Criteria

• History of fractures or surgical operations involving the lower limbs, hips, or lumbar region
• history of fractures, surgeries and other diagnosed medical conditions on the lower extremity, hip, and lumbar region
• Systemic musculoskeletal disease
• Pain in the lower back, hips, or lower extremities
• Known hip deformity or diagnosis of scoliosis
• History of deep vein thrombosis or embolism
• Diagnosis of circulatory system diseases such as hypertension or peripheral vascular disease
• History of anemia
• Previous cerebrovascular disease or myocardial infarction.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 40 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Dokuz Eylul University

OTHER

Sponsor Role: lead

Responsible Party

Ayşe Birsu Topcugil Kırık

Principal Investigator

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Ayse Birsu Topcugil Kirik, MD

Role: PRINCIPAL_INVESTIGATOR

Dokuz Eylul University

Locations

Dokuz Eylul University, Sports Medicine Department

Izmir, Balcova, Turkey (Türkiye)

Countries

Turkey (Türkiye)

Other Identifiers

5016-GOA

Identifier Type: -

Identifier Source: org_study_id