Accuracy of Prediction Equations to Calculate Maximum Strength

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ENROLLING_BY_INVITATION

Total Enrollment

120 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-12-02

Study Completion Date

2026-09-30

Brief Summary

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Resistance exercise training (RT) is a key component of health related exercise programs. However, an accurate specification of RT load prescription is essential for effective and safe achievement of training aims. Proper specification of exercise intensity might be the most critical issue when designing RT protocols for adults. One repetition maximum tests (1RM) have been considered the "gold standard" of dynamic maximum strength evaluation. Although the argument of increased risk of injuries and adverse effects with 1RM testing in older people has been rejected by several studies , limited motivation to lift maximum loads, requirement for high test effort, time constraints, and interruption of the continuity of the training process aggravate the frequent application of 1RM tests particularly in non-athletic RT. 1RM prediction equations that use the load and number of repetitions completed to fatigue (RTF) to predict repetition maximum might be a reliable and feasible option to 1RM testing. Thus, the primary aims of this study were to evaluate the predictive accuracy of current RTF equations and to develop an equation that more accurately predicts 1RM from RTF tests.

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Detailed Description

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Conditions

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Healthy Aging

Study Design

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Observational Model Type

COHORT

Study Time Perspective

CROSS_SECTIONAL

Interventions

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resistance exercise tests

One 1RM and three RTF tests (5-8RM, 9-12RM, 13-16RM) on seven resistance training devices

Intervention Type OTHER

Eligibility Criteria

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Inclusion Criteria

* 18 to 35 years old
* 60 to 85 years old

Exclusion Criteria

* Contraindication for one repetition maximum tests
* musculoskeletal injuries that may prevent a reliable and safe assessment of the 1RM and RTF tests

Minimum Eligible Age

18 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No