Muscle Activation and Kinematic Analysis during the Inclined Leg Press Exercise in Young Females
Knee joint muscle activation imbalances, especially weakness in the vastus medialis oblique, are related to patellofemoral pain within the female population. The available literature presents the leg press as an exercise which potentially targets vastus medialis oblique activation, thus reducing imb...
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| Format: | info:eu-repo/semantics/article |
| Language: | English |
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MDPI
2020
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| Subjects: | |
| Online Access: | http://hdl.handle.net/10835/9024 |
| _version_ | 1789406524094808064 |
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| author | Martín Fuentes, Isabel Oliva Lozano, Jose María Muyor Rodríguez, José María |
| author_facet | Martín Fuentes, Isabel Oliva Lozano, Jose María Muyor Rodríguez, José María |
| author_sort | Martín Fuentes, Isabel |
| collection | DSpace |
| description | Knee joint muscle activation imbalances, especially weakness in the vastus medialis oblique, are related to patellofemoral pain within the female population. The available literature presents the leg press as an exercise which potentially targets vastus medialis oblique activation, thus reducing imbalances in the quadriceps muscles. The main aim of the present study was to compare thigh muscle activation and kinematic parameters under different conditions during the inclined leg press exercise in a young female population. A cross-sectional study was conducted on 10 young, trained females. Muscle activation of the vastus medialis oblique, vastus lateralis, rectus femoris and gluteus medialis was analyzed under five different inclined leg press conditions, modifying the feet rotation (0–45° external rotation) and the stance width (100–150% hip width) on the footplate. All the conditions were performed at two different movement velocities: controlled velocity (2″ eccentric–2″ concentric) and maximal intended velocity. Mean propulsive velocity, maximum velocity and maximum power were also assessed. The results show that both controlled velocity conditions and maximal intended velocity conditions elicited a similar muscle activation pattern with greater activation during the concentric phase (p < 0.001, ηp2 = 0.96). The maximal intended velocity conditions showed greater overall muscle activation (p < 0.001, ηp2 = 0.91). The vastus medialis oblique presented the greatest muscle activation, followed by the rectus femoris, vastus lateralis and, the gluteus medialis. Furthermore, the inclined leg press condition with 0º feet rotation, 100% hip width distance and the maximal intended velocity generated the greatest kinematic parameter outputs. In conclusion, the inclined leg press exercise might be an optimal exercise to target vastus medialis activation regardless of the feet rotation and stance width conditions. |
| format | info:eu-repo/semantics/article |
| id | oai:repositorio.ual.es:10835-9024 |
| institution | Universidad de Cuenca |
| language | English |
| publishDate | 2020 |
| publisher | MDPI |
| record_format | dspace |
| spelling | oai:repositorio.ual.es:10835-90242023-04-12T19:13:26Z Muscle Activation and Kinematic Analysis during the Inclined Leg Press Exercise in Young Females Martín Fuentes, Isabel Oliva Lozano, Jose María Muyor Rodríguez, José María knee muscle imbalances muscle activation surface electromyography leg press variants lower limb kinematics Knee joint muscle activation imbalances, especially weakness in the vastus medialis oblique, are related to patellofemoral pain within the female population. The available literature presents the leg press as an exercise which potentially targets vastus medialis oblique activation, thus reducing imbalances in the quadriceps muscles. The main aim of the present study was to compare thigh muscle activation and kinematic parameters under different conditions during the inclined leg press exercise in a young female population. A cross-sectional study was conducted on 10 young, trained females. Muscle activation of the vastus medialis oblique, vastus lateralis, rectus femoris and gluteus medialis was analyzed under five different inclined leg press conditions, modifying the feet rotation (0–45° external rotation) and the stance width (100–150% hip width) on the footplate. All the conditions were performed at two different movement velocities: controlled velocity (2″ eccentric–2″ concentric) and maximal intended velocity. Mean propulsive velocity, maximum velocity and maximum power were also assessed. The results show that both controlled velocity conditions and maximal intended velocity conditions elicited a similar muscle activation pattern with greater activation during the concentric phase (p < 0.001, ηp2 = 0.96). The maximal intended velocity conditions showed greater overall muscle activation (p < 0.001, ηp2 = 0.91). The vastus medialis oblique presented the greatest muscle activation, followed by the rectus femoris, vastus lateralis and, the gluteus medialis. Furthermore, the inclined leg press condition with 0º feet rotation, 100% hip width distance and the maximal intended velocity generated the greatest kinematic parameter outputs. In conclusion, the inclined leg press exercise might be an optimal exercise to target vastus medialis activation regardless of the feet rotation and stance width conditions. 2020-12-09T09:24:34Z 2020-12-09T09:24:34Z 2020-11-23 info:eu-repo/semantics/article 1660-4601 http://hdl.handle.net/10835/9024 en https://www.mdpi.com/1660-4601/17/22/8698 Attribution-NonCommercial-NoDerivatives 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/ info:eu-repo/semantics/openAccess MDPI |
| spellingShingle | knee muscle imbalances muscle activation surface electromyography leg press variants lower limb kinematics Martín Fuentes, Isabel Oliva Lozano, Jose María Muyor Rodríguez, José María Muscle Activation and Kinematic Analysis during the Inclined Leg Press Exercise in Young Females |
| title | Muscle Activation and Kinematic Analysis during the Inclined Leg Press Exercise in Young Females |
| title_full | Muscle Activation and Kinematic Analysis during the Inclined Leg Press Exercise in Young Females |
| title_fullStr | Muscle Activation and Kinematic Analysis during the Inclined Leg Press Exercise in Young Females |
| title_full_unstemmed | Muscle Activation and Kinematic Analysis during the Inclined Leg Press Exercise in Young Females |
| title_short | Muscle Activation and Kinematic Analysis during the Inclined Leg Press Exercise in Young Females |
| title_sort | muscle activation and kinematic analysis during the inclined leg press exercise in young females |
| topic | knee muscle imbalances muscle activation surface electromyography leg press variants lower limb kinematics |
| url | http://hdl.handle.net/10835/9024 |
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