Clinical trial NCT03923608: Reliability of a Endurance and a Strength Test for Shoulder Rotation
Official title: Localized Muscle Resistance Test: Identification and Use of Parameters for Prescription of Exercise Resisted in Different Evaluation Tools
Study type: OBSERVATIONAL
Overall status: COMPLETED
Conditions: Fatigue
Lead sponsor: São Paulo State University
Sponsor class: OTHER
First posted: 2019-04-22
Enrollment: 50
Sex: ALL
Minimum age (years): 13
Maximum age (years): 30
Standard ages: CHILD
ADULT
Accepts healthy volunteers: yes
Observational model: OTHER
Time perspective: PROSPECTIVE
Sampling method: NON_PROBABILITY_SAMPLE
Study population: The sample is composed of apparently healthy young men, of both genders, between 13 and 30 years old.

Brief summary: 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.


Eligibility 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.

Primary outcomes:
measure: Maximal force (kilograms)
timeFrame: Stage 1 - 0 minutes after strength test
measure: Time (seconds)
timeFrame: Stage 2 - 0 minutes after Endurance test
measure: Number of repetitions
timeFrame: Stage 2 -0 minutes after Endurance test
measure: Anthropometric evaluation
timeFrame: Stage 1 - 10 minutes before stregth test
measure: Psychological Questionnaire
timeFrame: Stage 1 - 10 minutes before stregth test
measure: International Physical Activity Questionnaire (IPAQ)
timeFrame: Stage 1 - 10 minutes before stregth test
measure: Borg's Perception of Effort Scale
timeFrame: Stage 2 - 0 minutes after endurance test in all tools
measure: Perceived effort
timeFrame: Stage 2 - 0 minutes after endurance test in all tools
measure: Recovery Perception
timeFrame: Stage 2 - 10 minutes after endurance test in all tools
measure: Participation of the anaerobic parameter
timeFrame: Stage 3 - During endurance test, until 7 minutes after test
Secondary outcomes:
Other outcomes:
Locations:
city: Presidente Prudente
country: Brazil
facility: State University of são Paulo
state: São Paulo
Study officials:
affiliation: Universidade Estadual Paulista Júlio de Mesquita Filho
name: Carlos Marcelo Pastre, PhD
role: STUDY_DIRECTOR
References: