6533b7cffe1ef96bd1258549
RESEARCH PRODUCT
Segmental contribution to forces in vertical jump.
Pekka LuhtanenPaavo V. Komisubject
MaleAnthropometryPhysiologyMovementPhysical ExertionPublic Health Environmental and Occupational HealthGeometryGeneral MedicineEfficiencySwingTrunkPlantar flexionBiomechanical PhenomenaVertical jumpCenter of gravityArm swingPhysiology (medical)HumansOrthopedics and Sports MedicineForce platformWhole bodyMathematicsdescription
Performance of a vertical jump was analyzed with respect to the contribution of the different body segments to the forces acting on the whole body center of gravity. Both cinematograph and force-platform techniques were employed. The data disclosed that the take-off velocity in vertical jumps was caused by the different components as follows: knee extension 56%, plantar flexion 22%, trunk extension 10%, arm swing 10%, and head swing 2%. However, the average take-off velocity of the total performance (3.03 m/s) was only 76% from the theoretical maximum calculated from the segmental analyses. Optimal timing of the segmental performances was calculated to increase this “efficiency” to 84%. Great variance were observed among individuals in the total performance despite the similarities in utilization of the performance of individual segments.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1978-04-15 | European journal of applied physiology and occupational physiology |