---
title: Assess online reaching motor control
nct_id: NCT04616508
phase: NA
status: RECRUITING
sponsor: University of Delaware
study_type: INTERVENTIONAL
canonical_url: "https://parkinsonspathways.com/trial/NCT04616508"
clinicaltrials_gov: "https://clinicaltrials.gov/study/NCT04616508"
last_fetched: "2026-05-10T14:06:00.716Z"
source: "Parkinson's Pathways (curated)"
---
# Assess online reaching motor control

**Goal (in five words):** Assess online reaching motor control

**Official Title:** Online Motor Control in People With Parkinson's Disease

**Trial ID:** [NCT04616508](https://clinicaltrials.gov/study/NCT04616508)

## Key Facts

- **Phase:** NA
- **Status:** RECRUITING
- **Study Type:** INTERVENTIONAL
- **Sponsor:** University of Delaware
- **Target Enrollment:** 100 participants
- **Start Date:** 2018-12-12
- **Completion Date:** 2024-12-12
- **Conditions:** Motor Control, Parkinson Disease
- **Interventions:** motor control assessment
- **Intervention Types:** BEHAVIORAL

## Summary For Families

The team wants to understand how Parkinson's affects online motor control, meaning the ability to make real-time corrections during a reach, which helps explain everyday problems with reaching and handling objects. Participants do measured reaching tasks of about 20 cm while researchers record how quickly and accurately movements are adjusted; people with Parkinson's must stay on their usual dopaminergic or dopamine agonist medication, so the results reflect medicated performance rather than a drug change. Adults 18 to 85 with an MMSE of 26 or higher who can reach about 8 inches are eligible, the Parkinson's group must self-report idiopathic PD and be taking dopaminergic medication, and anyone with other neurological disorders or upper-arm musculoskeletal issues is excluded.

## Eligibility

- **Minimum age:** 18 Years
- **Maximum age:** 85 Years
- **Sex:** ALL

### Full Criteria

```
Inclusion criteria (all participants):

* Age 18-85 years
* Able to perform reaching movements of \~20 cm (8 inches)
* MMSE score ≥ 26/30
* Willing and able to attend all testing sessions

Inclusion criteria (PD group only):

* Diagnosis of idiopathic Parkinson's disease per self report
* Currently taking dopaminergic/dopamine agonist medication

Exclusion criteria (all participants):

* Any chronic or recent upper extremity musculoskeletal conditions that affects reaching
* Any neurological disorders other than Parkinson's disease (e.g., seizure disorders, closed head injuries with loss of consciousness greater than 15 minutes, CNS neoplasm, history of stroke)
```

## Locations (1)

- University of Delaware, Newark, Delaware, United States _(39.6837, -75.7497)_
  - Joie Tang — (CONTACT)
  - Hyosub Kim, PhD — (PRINCIPAL_INVESTIGATOR)

## Central Contacts

- Hyosub Kim, PhD — (CONTACT) — 302-831-4263 — hyosub@udel.edu

---

*Canonical: https://parkinsonspathways.com/trial/NCT04616508*  
*HTML version: https://parkinsonspathways.com/trial/NCT04616508*  
*Source data: https://clinicaltrials.gov/study/NCT04616508*