Comparative Analysis of Two Submaximal Predictive Strength Equations to the One Repetition Maximum Test

Location

CSU

Student's Major

Human Performance

Student's College

Science, Engineering and Technology

Mentor's Name

Mary Visser

Mentor's Department

Human Performance

Mentor's College

Allied Health and Nursing

Second Mentor's Name

Jeff Gilbert

Second Mentor's Department

Human Performance

Second Mentor's College

Allied Health and Nursing

Description

Accurate estimation of the strength of a muscle or muscle group is of particular importance in the development of exercise prescriptions and training regimens. Previous researchers have developed sub-maximal testing protocols and equations to avoid requiring a 1-Repetition-Maximum (I-RM) performance from a subject or patient in order to reduce the potential risk of injury. However, little research has been done to cross-validate these sub-maximal tests. Therefore, our purpose is to compare the direct 1-RM method of maximal strength determination to the indirect 1- RM (curvilinear) method and the indirect I-RM (linear) method. Approximately 40 college-age male and female volunteers will serve as subjects for this investigation. Each subject will initially perform the direct 1-RM test for determination of maximal bench press strength; this will serve as the control value. The subjects will be randomly assigned into one of two groups. After a minimum of 3 days rest, the subjects of group 1 will be tested using sub-maximal protocol 1 (curvilinear l-RM), and following another minimum of 3 days of rest, they will tested using sub-maximal protocol 2 (linear 1-RM). Group 2 will be tested in the opposite manner. We speculate there will be no significant difference between the sub-maximal (indirect) protocols and the direct I-RM method of maximal strength testing.

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Comparative Analysis of Two Submaximal Predictive Strength Equations to the One Repetition Maximum Test

CSU

Accurate estimation of the strength of a muscle or muscle group is of particular importance in the development of exercise prescriptions and training regimens. Previous researchers have developed sub-maximal testing protocols and equations to avoid requiring a 1-Repetition-Maximum (I-RM) performance from a subject or patient in order to reduce the potential risk of injury. However, little research has been done to cross-validate these sub-maximal tests. Therefore, our purpose is to compare the direct 1-RM method of maximal strength determination to the indirect 1- RM (curvilinear) method and the indirect I-RM (linear) method. Approximately 40 college-age male and female volunteers will serve as subjects for this investigation. Each subject will initially perform the direct 1-RM test for determination of maximal bench press strength; this will serve as the control value. The subjects will be randomly assigned into one of two groups. After a minimum of 3 days rest, the subjects of group 1 will be tested using sub-maximal protocol 1 (curvilinear l-RM), and following another minimum of 3 days of rest, they will tested using sub-maximal protocol 2 (linear 1-RM). Group 2 will be tested in the opposite manner. We speculate there will be no significant difference between the sub-maximal (indirect) protocols and the direct I-RM method of maximal strength testing.