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Study of Arm and Putter Movement in Golfers With Golfer's Cramp

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ClinicalTrials.gov Identifier: NCT02032758
Recruitment Status : Completed
First Posted : January 10, 2014
Results First Posted : July 25, 2016
Last Update Posted : July 25, 2016
Sponsor:
Information provided by (Responsible Party):
Charles Adler, Mayo Clinic

Brief Summary:
The investigators will investigate golfers with visual evidence of an involuntary movement while putting before and after treatment with a low dose of propranolol.

Condition or disease Intervention/treatment Phase
Occupational; Cramp(s) Drug: Propranolol Device: Opal Device Procedure: Science and Motion PuttLab (SAM) Device: Surface Electromyography EMG Phase 4

Detailed Description:

Dystonia affecting athletes has received little research attention and there has been a lack of awareness or interest among both physicians and athletes. Task-specific dystonias or occupational cramps affect people while writing, typing, and or playing a musical instrument. Our group has previously shown that a subset of golfers who complain of the yips appear to have a task-specific dystonia or golfer's cramp. The yips are characterized by an inability to appropriately complete a golf stroke, most often putting and chipping strokes. Most individuals with the yips describe a jerking or shaking movement that interrupts their swing. In many cases the yips are disabling and the golfer, including professional tour players, give up golfing.

Golfers who have evidence of golfer's cramp will putt a series of putts during which they will be monitored for arm movements and putter movements. They will then be treated with a low dose of propranolol to see if there is a change in these parameters.


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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 38 participants
Allocation: Non-Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Golfer's Cramp: Correlation of Wrist Movements and Surface EMG With Putter Movements
Study Start Date : January 2014
Actual Primary Completion Date : January 2015
Actual Study Completion Date : January 2015

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Muscle Cramps

Arm Intervention/treatment
Experimental: Golfers With Golfer's Cramp
Subjects in this arm will be tested with the Opal device, the Science and Motion PuttLab (SAM), and the Surface Electromyography (EMG) to collect movement parameters while putting before and after a single dose of 10 mg Propranolol.
Drug: Propranolol
Single oral dose of 10 mg propranolol
Other Name: Inderal

Device: Opal Device
The Opal Device (APDM, Inc.) will be used to measure wrist movement.

Procedure: Science and Motion PuttLab (SAM)
The SAM will be used to study putter stroke movement and ball movement.

Device: Surface Electromyography EMG
The surface EMG will be used to evaluate co-contraction of the wrist flexor/extensor muscle groups and the wrist pronator/supinator muscle groups.

Golf Pros
Subjects in this arm will be tested with the Opal device, the Science and Motion PuttLab (SAM), and the Surface Electromyography (EMG) to collect movement parameters while putting. The subjects in this arm will not receive any study drug.
Device: Opal Device
The Opal Device (APDM, Inc.) will be used to measure wrist movement.

Procedure: Science and Motion PuttLab (SAM)
The SAM will be used to study putter stroke movement and ball movement.

Device: Surface Electromyography EMG
The surface EMG will be used to evaluate co-contraction of the wrist flexor/extensor muscle groups and the wrist pronator/supinator muscle groups.




Primary Outcome Measures :
  1. Mean Dynamic Change of Rotation at Impact [ Time Frame: baseline, approximately 45 minutes after propranolol dosing ]
    "Dynamic change of rotation at impact" is the velocity of rotation of the putter from the start of the forward swing until the time of impact with the golf ball.


Secondary Outcome Measures :
  1. Mean Total Putter Face Rotation Before Impact [ Time Frame: baseline, approximately 45 minutes after propranolol dosing ]
    "Total putter face rotation before impact" is the degrees of rotation of the putter from the start of the forward swing until the time of impact with the golf ball.



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Ages Eligible for Study:   18 Years to 75 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion criteria:

  • Age 18-75
  • Complaint of golfer's cramp/yips
  • Visual evidence of a movement disorder during putting
  • Able to complete 80 putts during the session

Exclusion criteria:

  • Contraindication to treatment with propranolol
  • Movement disorder not when putting

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02032758


Locations
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United States, Arizona
Mayo Clinic in Arizona
Scottsdale, Arizona, United States, 85259
Sponsors and Collaborators
Mayo Clinic
Investigators
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Principal Investigator: Charles Adler, MD, PhD Mayo Clinic

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Responsible Party: Charles Adler, Professor of Neurolgy, Mayo Clinic
ClinicalTrials.gov Identifier: NCT02032758     History of Changes
Other Study ID Numbers: 12-007930
First Posted: January 10, 2014    Key Record Dates
Results First Posted: July 25, 2016
Last Update Posted: July 25, 2016
Last Verified: June 2016
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Keywords provided by Charles Adler, Mayo Clinic:
Occupational; Cramp(s)
Additional relevant MeSH terms:
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Muscle Cramp
Spasm
Muscular Diseases
Musculoskeletal Diseases
Neuromuscular Manifestations
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms
Propranolol
Adrenergic beta-Antagonists
Adrenergic Antagonists
Adrenergic Agents
Neurotransmitter Agents
Molecular Mechanisms of Pharmacological Action
Physiological Effects of Drugs
Anti-Arrhythmia Agents
Antihypertensive Agents
Vasodilator Agents