Accession Number : ADA294279

Title :   Effects Of Altered Gravity On Jumping Performance And Intermuscular Control.

Descriptive Note : Doctoral thesis,

Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH

Personal Author(s) : Carpenter, David R.

PDF Url : ADA294279

Report Date : MAY 1995

Pagination or Media Count : 171

Abstract : The purpose of this study was to determine the effect of altered gravity on human jump performance and intermuscular control. A musculoskeletal model was used to determine jump height, muscle power and energy delivered to the skeletal system (jump performance), and changes in muscle neuroexcitation and activation patterns (intermuscular control) for different values of gravity. The different values of gravity ranged from 0.2 to 1.8 times earth gravity. Prior to analyzing the musculoskeletal model solutions, the model solutions were validated by comparing predicted jump heights, time-required-to-jump, ground reaction force, joint kinematics and muscle neuroexcitations to measured experimental data collected in increased gravitational environments. JMD

Descriptors :   *GRAVITY, *MUSCULOSKELETAL SYSTEM, KINEMATICS, ACTIVATION, EXPERIMENTAL DATA, MODELS, PERFORMANCE(HUMAN), INFANTRY, ENERGY, SOLUTIONS(GENERAL), RESPONSE, PATTERNS, POWER, VALUE, MUSCLES, HEIGHT, SKELETON.

Subject Categories : Geodesy
      Anatomy and Physiology

Distribution Statement : APPROVED FOR PUBLIC RELEASE