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Scientific Credentials

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2010 -              Physiotherapist - The Urban Athlete, 505 Eglinton Ave. W

  • Part of a multidisciplinary team treating all orthopaedic musculoskeletal injuries
  • Particular emphasis on sport injuries, post surgical rehabilitation and chronic pain

2003-2010       General Chiropractic Rehabilitation Practice

§   Owner/Operator of Performance Health Studio. Active private practice involves the provision of treatment and rehabilitation programs of mechanical, degenerative and traumatic musculoskeletal problems of the back, neck and extremities. Patients primarily include sports injuries and chronic pain

§   Independent evaluations and functional capacity evaluations in his private practice for insurance companies on persons sustaining injuries in motor vehicle accidents or having long term disabilities and for various Assessment Companies.

§   Ergonomic assessments performed for industry and insurance companies

2004-2007 Chiropractor and Conditioning Specialist, Queen’s University Women’s Hockey

1997-1998 Strength and Conditioning Specialist, Sir Wilfred Laurier Men’s Basketball Program


1.Recipient:  Ontario Chiropractic Association Professional Service Award (2006): Research

2. National Sciences and Engineering Research Council (NSERC) Graduate Scholarship (1996-98) $33,800

3. CMCC Internal Research competition:  Spine Biomechanics Infrastructure Funding (2001) $20,000

4. Canadian Society for Exercise Physiology Gold Medal for highest academic performance in Kinesiology (1996)


2007-2008        Professor, Occupational Health and Wellness Course

St. Lawrence College

2003-2008        Assistant Professor, Graduate Studies and Research Department,

Canadian Memorial Chiropractic College (part time)

2003 – 2004     Tutor, Clinical Diagnosis.  CD 1301, CD2301, CD 3303

2001-2004        Ergonomics Guest Lecturer, Undergraduate Program in Biomechanics, Canadian                            Memorial Chiropractic College

2000-2008        Lecturer & Course Coordinator, Graduate Studies and Research Department,

Canadian Memorial Chiropractic College (CMCC)

Spine Biomechanics and Research Instrumentation GS 507

Course covers injury biomechanics, spine stability, ergonomic principles and rehabilitation concepts


2000 – 2008     Research Associate/Assistant Professor, Graduate Studies and Research, Canadian Memorial Chiropractic College (CMCC)

This appointment involved the designing, conducting and publishing of                                                         biomechanical research projects, equipment acquisition and training of students in                            conducting biomechanical research.

1998-1999        Clinic Scientist, University of Waterloo-Canadian Memorial Chiropractic College                             Research Clinic, Waterloo  ON


Chapters in Books

Colloca CJ, Keller TS, Lehman, GJ, Harrison DD, Harrison DE.  The use of spine measurement instruments in clinical practice.  In:  Haldeman, S, ed. Principles and Practice of Chiropractic, 3rd Edition.  Norwalk, CT: Appleton & Lange, 2004

Refereed Journal Articles

Lehman GJ, Brandon MacMillan, Ian MacIntyre, Michael Chivers, Mark Fluter , Shoulder muscle EMG activity during push up variations on and off a Swiss ball.  Dynamic Medicine 2006, 5:7 (9 June 2020)

Lehman GJ:  Resistance training for performance and injury prevention in golf.  Journal of  Canadian Chiropractic Association 2006; 50(1) 27-42

Lehman GJ. Trunk and hip muscle recruitment patterns during prone leg extension following a lateral ankle sprain:  A prospective case study pre and post injury.  Chiropr Osteopat. 2006  Feb 27: 14:4

Lehman GJ, Story S, Mabee R. Influence of static lumbar flexion on the trunk muscle’s response to sudden arm movements. Chiropr Osteopat. 2005 Nov 23;13(1):23

Lehman GJ. The influence of grip width and forearm pronation/supination on upper-body myoelectric activity during the flat bench press. J Strength Cond Res. 2005 Aug;19(3):587-91.

Lehman GJ, Hoda W, Oliver S. Trunk muscle activity during bridging exercises on and off a Swissball. Chiropr Osteopat. 2005 Jul 30;13:14.

Lehman GJ, Trish Gordon, Jo Langley, Patricia Pemrose, Sarah Tregaskis. Replacing a Swiss ball for an exercise bench causes variable changes in trunk muscle activity during the performance of upper limb strength exercises. Dynamic Medicine 2005, 4:6 (3Jun2005)

Lehman GJ. The use of non-amplitude components of the myoelectric signal in identifying differences in function between the low back injured and controls. J Can Chiropr Assoc. 2004; 48(3) 225-234.

Lehman GJ, Buchan DD, Lundy A, Myers N, Nalborczyk A.Variations in muscle activation levels during traditional latissimus dorsi weight training exercises: An experimental study.

Dyn Med. 2004 Jun 30;3(1):4.

Lehman GJ , Lennon D, Rayfield B, Poschar M, Tressider B. Muscle recruitment patterns during the prone leg extension test. BMC Musculoskeletal Disorders 2004, 5:3 (10Feb2004)

Lehman GJ. Biomechanical assessments of lumbar spinal function. How low back pain sufferers differ from normals. Implications for outcome measures research. Part I: Kinematic assessments of lumbar function.J Manipulative Physiol Ther. 2004 Jan;27(1):57-62.

Lehman GJ.  Clinical considerations in the use of surface electromyography: Three experimental studies. J Manipulative Physiol Ther. 2002 Jun;25(5):293-9..

Lehman GJ, Vernon H & McGill SM: The effects of a mechanical pain stimulus on erector spine activity before and after a spinal manipulation in chronic low back pain patients: A preliminary investigation.  J Manipulative Physiol Ther. 2001 Jul-Aug;24(6):402-6.

Lehman GJ & McGill SM: Spinal manipulation causes variable changes in trunk kinematics and associated EMG. Clinical Biomechanics 2001 May: 16(4): 293-9.

Lehman GJ & McGill SM:  Quantification of the differences in EMG magnitude between the upper and lower rectus abdominis during selected trunk exercises.  Physical Therapy 2001 May;81(5):1096-101.

Lehman GJ & McGill SM: Proof of Principle: The Importance of Normalization in Surface EMG.  JMPT 1999: 22(7): 444-446.

Lehman GJ & McGill SM: The influence of a spinal manipulation on lumbar kinematics and EMG during simple and complex tasks: A Case Study. JMPT 1999; 22(9):576-81


Master of Science thesis:  “The influence of a lumbar spinal manipulation on trunk kinematics and associated trunk EMG”, 1998

Bachelor of Kinesiology thesis:  “Occupational Biomechanics & Ergonomics Handbook”, 1996

3 Comments - Leave a comment
  1. Kasper Janssen says:

    Dear Greg Lehman,

    Very nice website! As a researcher I came acros your patient exercise sheats. I am currently doing research on ankle sprains. For implementation of my research I am looking for a good tool to make 3d pictures of exercises. Would you be so kind as to share your source for your 3d exercise pictures with me? Of course I’ll send you a link to my research and new made pictures afterwards. Thank you in advance.


    Kasper Janssen
    sports physician/researcher

    • Greg Lehman says:

      Hi Kasper,

      The software is called Poser 8. You can buy this by Smith Micro. They also have Poser Debut but I don’t know much about that. I do know that the Poser 8 that I have is way too much power than what I need for simple pictures and videos.

      Good luck,


  2. [...] anyone isn’t familiar with some of his research I would highly recommend that they check out his published work – he’s done some remarkable [...]

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