# ELASTIC/PLASTIC HUMAN JOINT COMPLIANCE

> **NIH NIH R01** · RUSH UNIVERSITY MEDICAL CENTER · 1990 · $197,262

## Abstract

This project continues our study of the compliant behavior at the
human elbow, ankle and wrist produced by muscle and neural
control mechanisms.  We will apply controlled changes or torque
to resisting or relaxed limbs and measure the resultant motion and
electromyographic responses.

We are interested in more completely describing the behavior of
the limb under such perturbations in terms of its visco-elastic and
plastic behaviors.  By carefully studying the temporal variation in
these behaviors, we hope to separate purely muscular mechanism
from more variable neural control mechanisms.

The parametric descriptions that are measured experimentally
will be used to build non-linear computer models of the limb and
the muscles.  Such models have a dual purpose.  They are directly
useful in biomechanical studies such as predicting head motion
following sudden impacts to the body or head.  In our own lab, the
model will be used to help interpret the electromyographic
controlling signals that are observed in muscles during voluntary
movements.

## Key facts

- **NIH application ID:** 3156523
- **Project number:** 2R01AR033189-07
- **Recipient organization:** RUSH UNIVERSITY MEDICAL CENTER
- **SAM.gov UEI:** C155UU2TXCP3
- **Principal Investigator:** GERALD L GOTTLIEB
- **Activity code:** R01 (R01, R21, SBIR, etc.)
- **Funding institute:** NIH
- **Fiscal year:** 1990
- **Award amount:** $197,262
- **Award type:** 2
- **Project period:** 1983-12-01 → 1993-01-31

## Primary source

NIH RePORTER: https://reporter.nih.gov/project-details/3156523

## Citation

> US National Institutes of Health, RePORTER application 3156523, ELASTIC/PLASTIC HUMAN JOINT COMPLIANCE (2R01AR033189-07). Retrieved via MORVS 2026-10-24 from https://api.morvs.ai/grant/nih/3156523. Licensed CC0.

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