Reference Values for the One Repetition Maximum Test of Knee Extensors for Brazilians.

NCT06648421 | Recruiting

• 1 other identifier: 6.734.599
• Study Type: observational
• Target: 72
• Locations: 1 country
• Sites: 1

Brief Summary

Muscle strength is important for health and can affect how well people live, even increasing the risk of death in adults and older people. The one-repetition maximum (1RM) test is relatively easy compared to other tests and is commonly used to measure muscle strength in various groups, including healthy individuals and those with chronic diseases. It assists in prescribing resistance training and understanding training results. Knee extensors, especially the quadriceps femoris, are often studied because they play a key role in standing and walking. However, there are no standard reference values or equations for measuring knee extensors using the 1RM test. The existing methods rely on the evaluator's judgment, making them hard to replicate and standardize. The goal of this study is to provide reference equations and values for the 1RM of knee extensors and to establish a standardized methodology for the test.

Conditions

Healthy

Keywords

Muscle Strength; Isotonic Contraction; Reference Values

Outcome Measures

Primary Outcomes (1)

• Muscle strength of knee extensors

  One repetition maximum test (1RM) of knee extensors

  1 week

Secondary Outcomes (6)

• Weight

  1 week

• Height

  1 week

• Lower limb measurements

  1 week

• Comorbidities

  1 week

• Physical Activity

  1 week

Study Arms (1)

Healthy individuals aged 18 to 80 years old

Healthy individuals aged 18 to 80 years old

Eligibility Criteria

• Age: 18 Years - 80 Years
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Non-Probability Sample

Study Population

Apparently healthy individuals from the local community, as well as students, employees of the involved institution and their families will be recruited, provided they do not have any condition that may limit the performance of the knee extensor muscle strength testing and/or do not have contraindications for its execution.

You may qualify if:

• Individuals aged between 18-80 years of both sexes;
• Absence of any condition (e.g., orthopedic, neuromuscular, cardiorespiratory) that may limit the assessment or directly interfere in its results.

You may not qualify if:

• Failure to complete the proposed assessments for any reason;
• A score on the Mini-Mental State Examination lower than18 for illiterate individuals and lower than 24 for literate individuals;
• Body mass index (BMI) lower than 18 kg/m2 and higher than 40 kg/m2;
• The manifestation of the desire to leave the study at any time for any reason.

Sponsors & Collaborators

• Universidade Estadual de Londrina: lead

Study Sites (1)

Health Sciences Center of the State University of Londrina

Londrina, Paraná, 86038-350, Brazil

RECRUITING

Study Officials

• Fabio O Pitta, PhD

  State University of Londrina

  PRINCIPAL INVESTIGATOR

Central Study Contacts

Fabio O Pitta, PhD

CONTACT

+5543991015480; fabiopitta@uel.br

Study Design

• Study Type: observational
• Observational Model: OTHER
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Principal Investigator

Study Record Dates

• First Submitted: October 15, 2024
• First Posted: October 18, 2024
• Study Start: July 7, 2024
• Primary Completion: February 2, 2026
• Study Completion: April 6, 2026
• Last Updated: October 18, 2024

Record last verified: 2024-10

Locations

BR (1)