The Relationship Between Partial and Full Range of Motion Deadlift 1-Repetition Maximum: A Technical Note

Author:

Gillingham Brad1,Bishop Alan2,Higa Grant K.3,Adams Kent J.4,DeBeliso Mark5

Affiliation:

1. Athletics Department, Southwest Minnesota State University, Marshall, Minnesota;

2. Athletics Department, University of Houston, Houston, Texas;

3. PicoBoy Strength Company LLC, Maple Valley, Washington;

4. Kinesiology Department, California State University Monterey Bay, Seaside, California; and

5. Department of Kinesiology and Outdoor Recreation, Southern Utah University, Cedar City, Utah

Abstract

Abstract Gillingham, B, Bishop, A, Higa, GK, Adams, KJ, and DeBeliso, M. The relationship between partial and full range of motion deadlift 1-repetition maximum: a technical note. J Strength Cond Res 37(4): 909–914, 2023—The full range of motion (FROM) or partial range of motion (PROM) deadlift (DL) are often included in resistance training (RT) programs and are performed by strength athletes in competition. This study examined the relationship between the FROM and PROM 1-repetition maximum (1RM) DL and if the PROM 1RM DL can be estimated by the FROM 1RM DL. Eighteen National Collegiate Athletic Association wrestlers (20.8 ± 1.2 years, 176.0 ± 5.2 cm, 78.9 ± 10.6 kg) performed a warm-up followed by the assessment of the FROM and PROM 1RM DLs. The FROM DLs were executed with a starting position of the bar resting on the lifting platform. Partial range of motion DLs were executed in a power rack with the bar starting position at ≈2.54 cm above the patella. Regression analysis was employed to estimate PROM 1RM DL based on FROM 1RM DL, body height, and mass. A Pearson’s correlation coefficient (r) was used to compare the PROM 1RM DL with FROM 1RM DL. A dependent t test was used to compare the PROM 1RM DL and FROM 1RM DL scores (α < 0.05). The PROM 1RM DL scores (226.0 ± 40.6 kg) were significantly greater than the FROM 1RM DL scores (191.7 ± 37.2 kg) (p < 0.05: effect size = 0.92). The PCC between the PROM and FROM 1RM DL was r = 0.85 (p < 0.05). The regression coefficient for the FROM 1RM DL was significant (p < 0.05; R = 0.85, R 2 = 0.73). The regression coefficients for body mass and height were not significant (p > 0.05). The PROM and FROM DL may be interchangeable modalities within an RT program, and the PROM 1RM DL can be accurately predicted by the FROM 1RM DL.

Publisher

Ovid Technologies (Wolters Kluwer Health)

Subject

Physical Therapy, Sports Therapy and Rehabilitation,Orthopedics and Sports Medicine,General Medicine

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