Comparison of Three Single Leg Weightbearing Tasks with Statistical Parametric Mapping
The single leg squat (SLS), forward step down (FSD), and lateral step down (LSD) are clinically reliable movement screens for identifying motion imbalances. The current understanding for the kinematic profiles of each task is limited to discrete time points such as peak knee flexion. However, analys...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-11-01
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| Series: | Biomechanics |
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| Online Access: | https://www.mdpi.com/2673-7078/2/4/46 |
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| author | Nickolai J. P. Martonick Craig P. McGowan Russell T. Baker Lindsay W. Larkins Jeff G. Seegmiller Joshua P. Bailey |
| author_facet | Nickolai J. P. Martonick Craig P. McGowan Russell T. Baker Lindsay W. Larkins Jeff G. Seegmiller Joshua P. Bailey |
| author_sort | Nickolai J. P. Martonick |
| collection | DOAJ |
| description | The single leg squat (SLS), forward step down (FSD), and lateral step down (LSD) are clinically reliable movement screens for identifying motion imbalances. The current understanding for the kinematic profiles of each task is limited to discrete time points such as peak knee flexion. However, analyses of the entire movement would better aid clinicians when selecting the appropriate task for rehabilitation or movement screen purposes. The current study used Statistical Parametric Mapping to ascertain differences in the kinematic waveforms for the entire duration of each task. The trunk, pelvis, hip, and knee were analyzed in the sagittal and frontal planes. Data for each variable and task were analyzed from 0–100% of the movement. Primary findings indicated that the FSD provoked a greater magnitude of knee abduction than the SLS and LSD from 26–66% of the movement. The SLS generated the greatest amounts of trunk, pelvic, and hip flexion for the entirety of the movement. The LSD elicited the least amount of ipsilateral trunk lean (90–100%). Thus, the FSD may be optimal for assessing frontal plane knee motion as a screen for injury risk, while the SLS has potential to place increased sagittal plane demand on the muscles of the hip. |
| first_indexed | 2024-03-11T09:08:06Z |
| format | Article |
| id | doaj.art-8bc68e3edc6b4cc1b0999b693c3ba3e4 |
| institution | Directory Open Access Journal |
| issn | 2673-7078 |
| language | English |
| last_indexed | 2024-03-11T09:08:06Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Biomechanics |
| spelling | doaj.art-8bc68e3edc6b4cc1b0999b693c3ba3e42023-11-16T19:15:09ZengMDPI AGBiomechanics2673-70782022-11-012459160010.3390/biomechanics2040046Comparison of Three Single Leg Weightbearing Tasks with Statistical Parametric MappingNickolai J. P. Martonick0Craig P. McGowan1Russell T. Baker2Lindsay W. Larkins3Jeff G. Seegmiller4Joshua P. Bailey5Department of Movement Sciences, University of Idaho, Moscow, ID 83843, USADepartment of Integrative Anatomical Sciences, University of Southern California, Los Angeles, CA 90089, USADepartment of Movement Sciences, University of Idaho, Moscow, ID 83843, USADepartment of Movement Sciences, University of Idaho, Moscow, ID 83843, USADepartment of Movement Sciences, University of Idaho, Moscow, ID 83843, USADepartment of Movement Sciences, University of Idaho, Moscow, ID 83843, USAThe single leg squat (SLS), forward step down (FSD), and lateral step down (LSD) are clinically reliable movement screens for identifying motion imbalances. The current understanding for the kinematic profiles of each task is limited to discrete time points such as peak knee flexion. However, analyses of the entire movement would better aid clinicians when selecting the appropriate task for rehabilitation or movement screen purposes. The current study used Statistical Parametric Mapping to ascertain differences in the kinematic waveforms for the entire duration of each task. The trunk, pelvis, hip, and knee were analyzed in the sagittal and frontal planes. Data for each variable and task were analyzed from 0–100% of the movement. Primary findings indicated that the FSD provoked a greater magnitude of knee abduction than the SLS and LSD from 26–66% of the movement. The SLS generated the greatest amounts of trunk, pelvic, and hip flexion for the entirety of the movement. The LSD elicited the least amount of ipsilateral trunk lean (90–100%). Thus, the FSD may be optimal for assessing frontal plane knee motion as a screen for injury risk, while the SLS has potential to place increased sagittal plane demand on the muscles of the hip.https://www.mdpi.com/2673-7078/2/4/46SPMmovement screensrehabilitationkinematics |
| spellingShingle | Nickolai J. P. Martonick Craig P. McGowan Russell T. Baker Lindsay W. Larkins Jeff G. Seegmiller Joshua P. Bailey Comparison of Three Single Leg Weightbearing Tasks with Statistical Parametric Mapping Biomechanics SPM movement screens rehabilitation kinematics |
| title | Comparison of Three Single Leg Weightbearing Tasks with Statistical Parametric Mapping |
| title_full | Comparison of Three Single Leg Weightbearing Tasks with Statistical Parametric Mapping |
| title_fullStr | Comparison of Three Single Leg Weightbearing Tasks with Statistical Parametric Mapping |
| title_full_unstemmed | Comparison of Three Single Leg Weightbearing Tasks with Statistical Parametric Mapping |
| title_short | Comparison of Three Single Leg Weightbearing Tasks with Statistical Parametric Mapping |
| title_sort | comparison of three single leg weightbearing tasks with statistical parametric mapping |
| topic | SPM movement screens rehabilitation kinematics |
| url | https://www.mdpi.com/2673-7078/2/4/46 |
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