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Original Research Open Access

A 6-week Lagree Intervention Improves Functional Movement, Dynamic Balance, and Muscular Endurance—A Case Series

  • 1Department of Physician Assistant Studies and Athletic Training, Sam Houston State University, Huntsville, Texas, USA
  • 2Department of Anesthesiology and Pain Management, University of Texas Southwestern Medical Center, Dallas, Texas, USA
  • 3Department of Kinesiology, Sam Houston State University, Huntsville, Texas, USA
  • 4Department of Kinesiology, The University of Texas at Arlington, Arlington, Texas
+ Affiliations - Affiliations

Corresponding Author

Mayrena Isamar Hernandez, mih012@shsu.edu

Received Date: September 11, 2025

Accepted Date: March 02, 2026

Abstract

Lagree Methodology is a new multimodal exercise approach that is rapidly gaining popularity, and it claims to improve areas such as muscular endurance, balance, functional movements. However, no research has prospectively examined these effects. The purpose of this case series study was to determine the effectiveness of a 6-week Lagree methodology program on functional performance and balance in healthy adults. We hypothesize that muscular endurance, functional movements, and dynamic balance will increase post intervention. Eight healthy adults (6F, 26 ± 10 years, 71.6 ± 22.1 kg, 163 ± 12 cm) completed the Functional Movement Screen (FMS) and Lower Quarter Y-Balance Test, Prone Bridge test, and Half Sit-up test pre- and post-intervention. This 6-week Lagree program involved progressive resistance training performed on a machine with a platform lift. Changes in test scores were assessed using paired t-tests and Wilcoxon signed-ranks test. The total FMS score significantly increased by approximately 41% from pre-to post-intervention (pre: 11.25 ± 3.66, post: 15.88 ± 2.59, p=0.002). Composite scores of the Y-Balance test on their left leg significantly increased by 7% post-intervention (pre: 92.79 ± 8.27, post: 99.27 ± 10.54, p=0.035). The composite scores on the right leg increased by 4% but these differences were not significant (pre: 94.07 ± 8.48, post: 97.93 ± 10.86, p=0.140). Prone Bridge and Half Sit-up tests were not significant. A 6-week Lagree intervention was effective in producing significant and substantial improvements in the total FMS score and active straight leg raise performance. These findings suggest that the Lagree Methodology may offer functional movement benefits in healthy adults.

Keywords

Lagree methodology, Functional movement, Dynamic balance, Muscular endurance, Resistance training, Y-Balance test, Healthy adults

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