Evaluating grip strength in response to auditory stimulus: Exploring a dual task paradigm for concussed youth and their non-concussed peers

Actively Recruiting: Concussion


We want to learn more about recovery from sports-related concussion in youth. We will be measuring grip strength and reaction time separately and then together to see if there are subtle differences in kids who have had a concussion versus those who have not.


Anne Hunt PhD, OT Reg. (Ont.)Nick Reed, PhD

Participate in this study

Do you want to help us learn what happens to the grip strength and auditory reaction time after a concussion in youth? Consider participating in a research study!

Who can participate

We are looking to recruit 40 youth with the following profile:

  • 20 youth who have sustained a concussion within the past 2 weeks;
  • 20 youth who have sustained a concussion prior to the last 2 weeks, who still have post-concussion symptoms;
  • Between the ages of 13-18 years;
  • Do not currently have a skull fracture;
  • Have no degenerative, cardiovascular, metabolic, or respiratory disorders;
  • Have no drug or alcohol-related conditions;
  • Have no prior history of a psychiatric disease or mental health conditions;
  • Are not currently using any drugs that alter or have an impact on brain state;
  • Can read and understand English.

We will also be recruiting 20 youth who have not sustained a concussion to compare results between the groups.

What's Involved

  • The session will last 30 minutes.
  • You will wear earphones that will play an auditory tone.  As soon as you hear the tone, you will squeeze your hand as hard and as quickly as possible.  This will be done 3 times on both hands.
  • We will also place a sensor on your finger to measure your heart rate.
  • The session will be held at Holland Bloorview and conducted at convenient time for you.


December 2017

Interested in participating

For more information on the study, please contact Karolina Urban at kurban@hollandbloorview.ca

Funding Agency

This is an unfunded pilot study.

Learn more about this study