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Completed

NCT Number: NCT03923608

Reliability of a Endurance and a Strength Test for Shoulder Rotation

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.

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Key information

Conditions

Fatigue Pathological Conditions, Signs and Symptoms Signs and Symptoms

Age range

13 year–30 year

Sex eligibility

All sexes

Study type

Observational

Primary location

State University of são Paulo

Presidente Prudente, São Paulo, 19060-900, Brazil

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

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.

Treatment and study plan

Maximal muscle strength Test

Diagnostic Test

1RM test performed in 5 different tools (Elastic Band, Pulley, halter, digital dynamometer and isokinetic dynamometer)

Exhaustion test

Diagnostic Test

Test performed until individual exhaustion in 5 different tools (Elastic Band, Pulley, halter and isokinetic dynamometer)

Primary outcomes

  1. Maximal force (kilograms)

    Time frame: Stage 1 - 0 minutes after strength test

    The maximum force of the participant shall be measured with the values presented in kilogram

  2. Time (seconds)

    Time frame: Stage 2 - 0 minutes after Endurance test

  3. Number of repetitions

    Time frame: Stage 2 -0 minutes after Endurance test

  4. Anthropometric evaluation

    Time frame: Stage 1 - 10 minutes before stregth test

    To determine the value corresponding to the body mass, the volunteers will be evaluated by a digital scale (Tanita BC554, Iron Man / Inner Scaner - Tanita, Illinois, United States). Stature values will be obtained by means of a stadiometer (Sanny - American Medical do Brasil, São Paulo, Brazil). From these values it will be possible to calculate the Body Mass Index (BMI), determined by the ratio of weight to height squared.

  5. Psychological Questionnaire

    Time frame: Stage 1 - 10 minutes before stregth test

    The questionnaire aims to subjectively document physical and metal readiness scores for exercise, fatigue, vigor, drowsiness, and muscle pain. Participants will be instructed to mark a dash on a visual analogue scale of 10 centimeters between two extremes, zero being "least possible" and 10 indicating "most possible" for each classification60. This questionnaire will be applied at the beginning of all sessions.

  6. International Physical Activity Questionnaire (IPAQ)

    Time frame: Stage 1 - 10 minutes before stregth test

    The IPAQ questionnaire is an instrument developed to estimate the level of habitual practice of physical activity. Sedentary - Does not perform any physical activity for at least 10 continuous minutes; Insufficiently Active - Individuals who engage in physical activity for at least 10 continuous minutes per week, but insufficiently to be classified as active. A) Perform 10 continuous minutes of physical activity, following at least one of the following criteria: frequency - 5 days/week or duration - 150 minutes/week; B) Does not meet any of the criteria of the recommendation cited in under-active individuals A; Active - a) vigorous physical activity - ≥ 3 days/week and ≥ 20 minutes/session; b) moderate or walking - ≥ 5 days/week and ≥ 30 minutes/session; c) any added activity: ≥ 5 day/week and ≥ 150 min/week; Very Active - a) vigorous - ≥ 5 days/week and ≥ 30 min/session; b) vigorous - ≥ 3 days/week and ≥ 20 min/session + moderate and or ≥ 5 days/week and ≥ 30 min/session.

  7. Borg's Perception of Effort Scale

    Time frame: Stage 2 - 0 minutes after endurance test in all tools

    The degree of subjective effort reported by the participants in relation to the upper limbs will be analyzed using the Borg scale of perception of effort of 6 to 20 points, 6 corresponding to the "very easy" and 20 to "exhaustive".

  8. Perceived effort

    Time frame: Stage 2 - 0 minutes after endurance test in all tools

    The perceived exertion of the resisted exercise will be evaluated through the OMNI Resistance Exercise Scale for Perceived Effort62,63, which consists of an ordinal scale of 0 to 10, 0 being extremely easy and 10 extremely difficult.

  9. Recovery Perception

    Time frame: Stage 2 - 10 minutes after endurance test in all tools

    The perception of recovery of the dominant lower limb will be evaluated through the Likert Scale of Recovery Perception, which consists of a scale with values between 1 and 10 points, 1 corresponding to no recovery and 10 to fully recovered

  10. Participation of the anaerobic parameter

    Time frame: Stage 3 - During endurance test, until 7 minutes after test

    The total participation of the anaerobic parameter (PANA) will be calculated by the sum of the lactary anaerobic (CLAC) and alactic (CALA) contributions, analyzed by [lac] and the excess of post-exercise oxygen consumption (EPOC), respectively.

Sponsors and collaborators

Lead sponsor

São Paulo State University

Other

Registry information

Official study title

Localized Muscle Resistance Test: Identification and Use of Parameters for Prescription of Exercise Resisted in Different Evaluation Tools

Important dates

Study start
2019
Primary completion
2019
Study completion
2019
First posted
Apr 22, 2019
Registry last updated
Sep 18, 2019

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

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This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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