Reliability of a Endurance and a Strength Test for Shoulder Rotation

São Paulo State University

Status: Completed

Conditions: Fatigue

Treatments: Diagnostic Test: Maximal muscle strength Test; Diagnostic Test: Exhaustion test

Study type: Observational

Funder types: Other

Identifiers

NCT03923608

SP-Unesp

Details and patient eligibility

About

Introduction: Verification of the progression of individuals submitted to training programs is performed by diagnostic tests with a focus on strength and muscular endurance. Among the tools used are the elastic bands, the halter, the pulley, the digital dynamometer and, additionally, the isokinetic dynamometer, considered the gold standard of evaluation. However, there is a lack of standardization in assessments and scarcity in the exploration of some tools and some muscle groups. Observation is often restricted to a particular study design and makes comparisons difficult even with the use of the same tool. Thus, to include different clinical possibilities in the same scenario can enrich the discussion about the topic. Objective: To develop and analyze the validity and reliability of a maximal muscle strength test for the external rotator muscles of the shoulder in five tools; To develop and analyze the validity and reliability of a localized resistance test for the external rotator muscles of shoulder in three different percentages of maximum strength (60%, 70%, 80%) in four tools; To characterize by means of the physiological response the localized muscular endurance test with the load that presents with the highest reliability values in each tool. Method: The study will consist of a sample of 50 participants of both genders, and will be performed in 3 steps: (1) Validation and reliability of the maximum muscle strength test; (2) Reliability of the muscular endurance test (MET); (3) Physiological characterization of the muscular endurance test (MET). Stage 1 will be held in 3 sessions (familiarization, test and retest) in which participants will perform 5 tests of maximum strength with different tools (elastic bands, pulley, halter, digital dynamometer and isokinetic dynamometer). Stage 2, consisting of 6 sessions, will be tested and retest of a muscular endurance test with different loads (70%, 80% and 90% of maximum force) with the same devices of step 1, except the digital dynamometer. In Step 3 participants will be selected with the lowest variations between the test and retest in the variable "time" to perform the physiological characterization of the test with the different tools. In order to observe the physiological response, we will analyze the lactic anaerobic (lactate concentration), allelic anaerobic (post-exercise oxygen uptake (EPOC) and aerobic (VO 2 values) parameters). The statistical package SPSS Statistics 22.0 will be used to conduct the analyzes. Key words: Fatigue, Physical resistance, Muscle strength, Lactate.

Enrollment: 50 patients

Sex: All

Ages: 13 to 30 years old

Volunteers: Accepts Healthy Volunteers

Inclusion and exclusion criteria

Inclusion Criteria: should report the absence of:

• anemia,
• diabetes,
• cardiovascular disease,
• and upper limb and spinal muscular injuries in the last six months

Exclusion Criteria:

• absence at any study session and
• episode of muscle-tendon or osteoarticular injury in the upper limbs during the study.

Trial design

50 participants in 2 patient groups

strength test

Description:

The maximum strength test of external shoulder rotators will be performed on 5 different tools with specific protocols.

Treatment:

Diagnostic Test: Maximal muscle strength Test

Endurance test

Description:

Test designed by the Laboratory of Sports Physical Therapy (LAFIDE) of FCT / UNESP - Presidente Prudente, used in the prescription of training for gain of localized muscular endurance. Will be realized in the tools: Isokinetic dynamometer, elastic bands, pulley and halter. The test will consist of the maximum possible repetitions (until fatigue) with loads of 70%, 80% and 90% of the maximum force (in different sessions).

Treatment:

Diagnostic Test: Exhaustion test