Acute Effects of Static Stretching on the Shoulder Joint Position Sense of Overhead Athletes

NCT ID: NCT06226974

Last Updated: 2024-02-21

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 17 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2023-12-01
• Study Completion Date: 2024-02-15

Brief Summary

The purpose of the study is to investigate the acute effects of static stretching on the shoulder joint position sense of overhead athletes.

Detailed Description

A crossover randomized controlled trial will be conducted with 17 overhead athletes (9 males and 8 females). All of them will perform the 3 study conditions in random order: a control (5-minute rest), and static stretching of 30 or 90 seconds of muscles around the shoulder. The shoulder joint position sense will be assessed before and immediately after these conditions, and tested by active repositioning for the range of 110º of flexion, with a video camera. Absolute, relative and variable angular errors will be calculated.

Conditions

Healthy

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: CROSSOVER
• Primary Study Purpose: HEALTH_SERVICES_RESEARCH
• Blinding Strategy: NONE

Study Groups

Control Condition

5-minute rest.

Group Type: NO_INTERVENTION

No interventions assigned to this group

Static Stretching of 30 seconds Condition

Static stretching of 30 seconds of muscles around the shoulder of the dominant upper limb:

• Shoulder extension - shoulder extension with the hand resting on a door;
• Doorway stretch - horizontal abduction with the shoulder in 90º of abduction, the elbow in 90º of flexion and the forearm leaning against a door;
• Shoulder flexion - arms above the head against a wall;
• Cross-body stretch - maximal horizontal adduction of the arm, with the opposite hand holding the stretch;
• Overhead triceps - arm above the head and elbow flexed, with the other hand pulling the elbow;
• Internal Rotation 90° stretch - with the shoulder at 90º of flexion and the elbow at 90º of flexion, the opposite hand and forearm forces the internal rotation.

Group Type: ACTIVE_COMPARATOR

Static Stretching

Intervention Type: OTHER

• Shoulder extension - shoulder extension with the hand resting on a door;
• Doorway stretch - horizontal abduction with the shoulder in 90º of abduction, the elbow in 90º of flexion and the forearm leaning against a door;
• Shoulder flexion - arms above the head against a wall;
• Cross-body stretch - maximal horizontal adduction of the arm, with the opposite hand holding the stretch;
• Overhead triceps - arm above the head and elbow flexed, with the other hand pulling the elbow;
• Internal Rotation 90° stretch - with the shoulder at 90º of flexion and the elbow at 90º of flexion, the opposite hand and forearm forces the internal rotation.

Static Stretching of 90 seconds Condition

Static stretching of 90 seconds of muscles around the shoulder of the dominant upper limb:

• Shoulder extension - shoulder extension with the hand resting on a door;
• Doorway stretch - horizontal abduction with the shoulder in 90º of abduction, the elbow in 90º of flexion and the forearm leaning against a door;
• Shoulder flexion - arms above the head against a wall;
• Cross-body stretch - maximal horizontal adduction of the arm, with the opposite hand holding the stretch;
• Overhead triceps - arm above the head and elbow flexed, with the other hand pulling the elbow;
• Internal Rotation 90° stretch - with the shoulder at 90º of flexion and the elbow at 90º of flexion, the opposite hand and forearm forces the internal rotation.

Group Type: ACTIVE_COMPARATOR

Static Stretching

Intervention Type: OTHER

• Shoulder extension - shoulder extension with the hand resting on a door;
• Doorway stretch - horizontal abduction with the shoulder in 90º of abduction, the elbow in 90º of flexion and the forearm leaning against a door;
• Shoulder flexion - arms above the head against a wall;
• Cross-body stretch - maximal horizontal adduction of the arm, with the opposite hand holding the stretch;
• Overhead triceps - arm above the head and elbow flexed, with the other hand pulling the elbow;
• Internal Rotation 90° stretch - with the shoulder at 90º of flexion and the elbow at 90º of flexion, the opposite hand and forearm forces the internal rotation.

Interventions

Static Stretching

• Shoulder extension - shoulder extension with the hand resting on a door;
• Doorway stretch - horizontal abduction with the shoulder in 90º of abduction, the elbow in 90º of flexion and the forearm leaning against a door;
• Shoulder flexion - arms above the head against a wall;
• Cross-body stretch - maximal horizontal adduction of the arm, with the opposite hand holding the stretch;
• Overhead triceps - arm above the head and elbow flexed, with the other hand pulling the elbow;
• Internal Rotation 90° stretch - with the shoulder at 90º of flexion and the elbow at 90º of flexion, the opposite hand and forearm forces the internal rotation.

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

• Subjects aged between 18 and 30 years
• Competitive overhead athletes (basketball, handball, volleyball, swimming)
• Normal range of motion of flexion of the shoulder

Exclusion Criteria

• History of injury of the shoulder joint in the previous 6 months
• Positive shoulder joint integrity tests (anterior drawer; fulcrum test; Jerk test; and sulcus sign)

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 30 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

University Fernando Pessoa

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Locations

Escola Superior Saúde Fernando Pessoa

Porto, , Portugal

Countries

Portugal

Other Identifiers

ESS/FSA-374/23-3

Identifier Type: -

Identifier Source: org_study_id