What goes up must come down: Consequences of jump strategy modification on dance leap take-off biomechanics
| Autor: | Kornelia Kulig, Danielle N. Jarvis |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Adult
Metatarsophalangeal Joint medicine.medical_specialty Dance Adolescent Knee Joint medicine.medical_treatment 030209 endocrinology & metabolism Physical Therapy Sports Therapy and Rehabilitation medicine.disease_cause Task (project management) 03 medical and health sciences Young Adult 0302 clinical medicine Jumping Physical medicine and rehabilitation Injury prevention medicine Humans Orthopedics and Sports Medicine Ankle Injuries Dancing Foot Injuries Rehabilitation Biomechanics food and beverages 030229 sport sciences Biomechanical Phenomena medicine.anatomical_structure Lower Extremity Time and Motion Studies Jump Female Hip Joint sense organs Ankle Psychology Energy Metabolism Ankle Joint |
| Zdroj: | Journal of sports sciences. 38(16) |
| ISSN: | 1466-447X |
| Popis: | Chronic foot and ankle injuries are common in dancers; understanding how lower extremity loading changes in response to altered task goals can be beneficial for rehabilitation and injury prevention strategies. The purpose of this study was to examine mechanical demands during jump take-offs when the task goal was modified to focus on either increasing jump distance or increasing jump height. It was hypothesized that a jump strategy focused on height would result in decreased energetic demands on the foot and ankle joints. Thirty healthy, experienced female dancers performed saut de chat leaps while travelling as far as possible (FAR) or jumping as high as possible (UP). Ground reaction force (GRF) impulses and peak sagittal plane net joint moments and sagittal plane mechanical energy expenditure (MEE) of the metatarsophalangeal (MTP), ankle, knee, and hip joints were calculated. During take-off, vertical and horizontal braking GRF impulses were greater and horizontal propulsive GRF impulse was lower in the UP condition. MEE at the MTP, ankle, and hip joints was lower in UP, and MEE at the knee was higher in UP. These results suggest that a strategy focused on height may be helpful in unloading the ankle and MTP joints during dance leaps. |
| Databáze: | OpenAIRE |
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