Wavelet Analysis of Skin Blood Oscillations in Persons With Spinal Cord Injury and Able-Bodied Subjects Zengyong Li, PhD, Jonathan Y. Leung, MSc, Eric.

Slides:

Advertisements

Similar presentations

What Would Brain-Computer Interface Users Want: Opinions and Priorities of Potential Users With Spinal Cord Injury Jane E. Huggins, PhD, Aisha A. Moinuddin,

Advertisements

Forecasting of spinal cord injury annual case numbers in Australia

Yih-Kuen Jan, PhD, PT, David M

Effects of Graduated Compression Stockings on Cardiovascular and Metabolic Responses to Exercise and Exercise Recovery in Persons With Spinal Cord Injury

Factors Complicating Treatment Sessions in Spinal Cord Injury Rehabilitation: Nature, Frequency, and Consequences Marcel P. Dijkers, PhD, FACRM, Jeanne.

Determinants of Lung Volumes in Chronic Spinal Cord Injury

Effects of Continuous Passive Motion on Reversing the Adapted Spinal Circuit in Humans With Chronic Spinal Cord Injury Ya-Ju Chang, PhD, Jing-Nong Liang,

Peripheral Quantitative Computed Tomography: Measurement Sensitivity in Persons With and Without Spinal Cord Injury Richard K. Shields, PhD, PT, Shauna.

Keith E. Gordon, PhD, Daniel P. Ferris, PhD, Arthur D. Kuo, PhD

Bone Mineral Density After Spinal Cord Injury: A Reliable Method for Knee Measurement Richard K. Shields, PhD, PT, Janet Schlechte, MD, Shauna Dudley-Javoroski,

Effects of Multijoint Spastic Reflexes of the Legs During Assisted Bilateral Hip Oscillations in Human Spinal Cord Injury Tanya Onushko, MS, Allison.

Control of Separation in Sternal Instability by Supportive Devices: A Comparison of an Adjustable Fastening Brace, Compression Garment, and Sports Tape

Kevin R. Vincent, MD, PhD, Randy W. Braith, PhD, Heather K

Yuying Chen, MD, PhD, Michael J. DeVivo, DrPH, Amie B. Jackson, MD

Alicia M. Koontz, PhD, Eric D

Intraobserver Reliability of Angular and Linear Measurements of Scapular Position in Subjects With and Without Symptoms Jeremy S. Lewis, PhD, Rachel.

Effects of Graduated Compression Stockings on Cardiovascular and Metabolic Responses to Exercise and Exercise Recovery in Persons With Spinal Cord Injury

Predictors of Psychosocial Adaptation Among People With Spinal Cord Injury or Disorder Erin Martz, PhD, Hanoch Livneh, PhD, Michael Priebe, MD, Lisa.

Curve Walking Is Not Better Than Straight Walking in Estimating Ambulation-Related Domains After Incomplete Spinal Cord Injury Rob Labruyère, PhD, Hubertus.

Christina V. Oleson, MD, Anthony S. Burns, MD, John F

Effects of Lateral Trunk Support on Scoliotic Spinal Alignment in Persons With Spinal Cord Injury: A Radiographic Study Hui-Fen Mao, MS, OTR, Sheau-Ling.

Kristian P. Nitsch, MS, Ana Miskovic, BA, Barbra Rodichok, BA

Charles H. Bombardier, PhD, J. Scott Richards, PhD, James S

Forecasting of spinal cord injury annual case numbers in Australia

Fracture threshold in the femur and tibia of people with spinal cord injury as determined by peripheral quantitative computed tomography Prisca Eser,

David M. Brienza, PhD, Mary Jo Geyer, PhD, PT, Yih-Kuen Jan, PhD, PT

Farhad Sepahpanah, MD, Stephen P

Effect of Repetitive Transcranial Magnetic Stimulation Over the Hand Motor Cortical Area on Central Pain After Spinal Cord Injury Bo Sung Kang, MD, Hyung.

Using Individual Growth Curve Models to Predict Recovery and Activities of Daily Living After Spinal Cord Injury: An SCIRehab Project Study Allan J.

Margaret K. Mak, PhD, Anna L. Lau, PhD, Frances S. Law, MSc, Cecilia C

Effects of circuit training on body composition and peak cardiorespiratory responses in patients with moderate to severe traumatic brain injury Yagesh.

Income and Risk of Mortality After Spinal Cord Injury

The Development and Validation of the Impact of Multiple Sclerosis Scale and the Symptoms of Multiple Sclerosis Scale Lindsay McMillan, MEd, Kathleen.

The Effects of Lower-Extremity Functional Electric Stimulation on the Orthostatic Responses of People With Tetraplegia Clare Y. Chao, MSc, Gladys L.

Yong-Hao Pua, PhD, Ross A. Clark, PhD, Adam L. Bryant, PhD

Reliability and Validity of the Six-Minute Arm Test for the Evaluation of Cardiovascular Fitness in People With Spinal Cord Injury Adrienne T. Hol, MSc,

Assessment of Seated Postural Control in Children: Comparison of a Force Platform Versus a Pressure Mapping System Michèle Lacoste, BSc, OT, Marc Therrien,

Abdominal Electric Stimulation Facilitates Penile Vibratory Stimulation for Ejaculation After Spinal Cord Injury: A Single-Subject Trial Lance L. Goetz,

The Effectiveness of Progressively Increasing Stimulation Frequency and Intensity to Maintain Paralyzed Muscle Force During Repetitive Activation in Persons.

Alicia M. January, PhD, Kathy Zebracki, PhD, Kathleen M

Effects of Walking With a Shopping Trolley on Spinal Posture and Loading in Subjects With Neurogenic Claudication Christine M. Comer, MSc, Derrick White,

Markus Wirz, PT, Hubertus J

Enhanced Stretch Reflex Excitability of the Soleus Muscle in Persons With Incomplete Rather Than Complete Chronic Spinal Cord Injury Kimitaka Nakazawa,

Clinical Correlates of Elevated Serum Concentrations of Cytokines and Autoantibodies in Patients With Spinal Cord Injury Andrew L. Davies, MSc, Keith.

Evan E. Sampson, MD, Robert S. Burnham, MD, Brian J. Andrews, PhD

Rob Labruyère, PhD, Marion Zimmerli, MSc, Hubertus J. van Hedel, PhD

Race, employment, and spinal cord injury

Determinants of Lung Volumes in Chronic Spinal Cord Injury

The Relationship Between Perceived Exertion and Physiologic Indicators of Stress During Graded Arm Exercise in Persons With Spinal Cord Injuries John.

Measurement Characteristics and Clinical Utility of the Spinal Cord Independence Measure-III Among Individuals With Spinal Cord Injury Kristian P. Nitsch,

Effect of Durations of Wheelchair Tilt-in-Space and Recline on Skin Perfusion Over the Ischial Tuberosity in People With Spinal Cord Injury Yih-Kuen.

Comparison of Muscle and Skin Perfusion Over the Ischial Tuberosities in Response to Wheelchair Tilt-in-Space and Recline Angles in People With Spinal.

Archives of Physical Medicine and Rehabilitation

A Prospective Study of Factors Influencing Return to Work After Traumatic Spinal Cord Injury in Taiwan Mau-Roung Lin, PhD, Hei-Fen Hwang, MS, Wen-Yu.

Alice Y. Jones, PhD, PT, Elizabeth Dean, PhD, PT, Rhonda J

Preserved Cardiac Function After Chronic Spinal Cord Injury

James S. Krause, PhD, Lee L. Saunders, PhD

Disability in Patients With Degenerative Lumbar Spinal Stenosis

Demographic and socioeconomic factors associated with disparity in wheelchair customizability among people with traumatic spinal cord injury Peter Cody.

Reaching-lifting-placing task during standing after stroke: Coordination among ground forces, ankle muscle activity, and hand movement Ann Kusoffsky,

Journal-Based CME Evaluation and Application

Rapid and Extensive Arterial Adaptations After Spinal Cord Injury

Increased Release of Serotonin in the Spinal Cord During Low, But Not High, Frequency Transcutaneous Electric Nerve Stimulation in Rats With Joint Inflammation

David J. Berlowitz, PhD, Douglas J. Brown, MBBS, Donald A

Kenneth J. Ottenbacher, PhD, OTR, James E. Graham, PhD, DC

Carotid artery flow volume and velocity by duplex sonography in men with chronic low thoracic and lumbar spinal cord injury Takashi Mizushima, MD, PhD,

A Natural Setting Behavior Management Program for Persons With Acquired Brain Injury: A Randomized Controlled Trial George J. Carnevale, PhD, Vera Anselmi,

Acute Peripheral Blood Flow Response Induced by Passive Leg Cycle Exercise in People With Spinal Cord Injury Laurent Ballaz, PhD, Nicolas Fusco, PhD,

Kimberly A. Fiscus, MS, ATC, Thomas W. Kaminski, PhD, ATC, Michael E

Trends in Life Expectancy After Spinal Cord Injury

Presentation transcript:

Wavelet Analysis of Skin Blood Oscillations in Persons With Spinal Cord Injury and Able-Bodied Subjects Zengyong Li, PhD, Jonathan Y. Leung, MSc, Eric W. Tam, PhD, Arthur F. Mak, PhD Archives of Physical Medicine and Rehabilitation Volume 87, Issue 9, Pages 1207-1212 (September 2006) DOI: 10.1016/j.apmr.2006.05.025 Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig 1 Schematic of experimental posture and setup. The testing posture was lying with both hips flexed to 90°. External pressure was applied to the skin by a pneumatic indentor (diameter, 25mm) aligned perpendicular to the skin over ischial tuberosity (IT). Both legs were supported by a height adjustable platform. Archives of Physical Medicine and Rehabilitation 2006 87, 1207-1212DOI: (10.1016/j.apmr.2006.05.025) Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig 2 The wavelet transform in (A) time-frequency plane and (B) averaged spectrum of LDF signal shown on a log scale. The vertical lines indicate the outer limits of frequency interval: (1) .01 to .02Hz, (2) .02 to .06Hz, (3) .06 to .15Hz, (4) .15 to 0.4Hz, and (5) 0.4 to 2Hz, which correspond to endothelial related metabolic, neurogenic, myogenic, respiratory and cardiac activities, respectively. Archives of Physical Medicine and Rehabilitation 2006 87, 1207-1212DOI: (10.1016/j.apmr.2006.05.025) Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig 3 Normalized absolute and relative amplitudes for the 5 frequency intervals for the resting skin over the ischial tuberosity in (A, B) the able-bodied subjects and (C, D) persons with SCI during the preloading and the 2 postloading periods (t1, t2). Significant differences are marked between postloading (t1) and preloading with *P<.05 and †P<.01; postloading (t2) and postloading (t1) with ‡P<.05 and §P<.01. Each value was calculated as a percentage of each PRE value in the same group. Archives of Physical Medicine and Rehabilitation 2006 87, 1207-1212DOI: (10.1016/j.apmr.2006.05.025) Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig 4 Relative amplitude for the 5 frequency intervals for the resting skin over the ischial tuberosity in the able-bodied subjects and persons with SCI during the (A) preloading and (B) postloading periods (t1). *Significant differences are marked between persons with SCI and able-bodied subjects (P<.05). Archives of Physical Medicine and Rehabilitation 2006 87, 1207-1212DOI: (10.1016/j.apmr.2006.05.025) Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions

Fig 5 Typical examples of time-averaged wavelet transform calculated from signals measured in the resting skin over the ischial tuberosity in (A) an able-bodied subject and (B) a person with SCI. The vertical lines indicate the outer limits of each frequency interval from 1 to 5, which correspond to endothelial related metabolic, neurogenic, myogenic, heart, and respiratory activities, respectively. Archives of Physical Medicine and Rehabilitation 2006 87, 1207-1212DOI: (10.1016/j.apmr.2006.05.025) Copyright © 2006 American Congress of Rehabilitation Medicine and the American Academy of Physical Medicine and Rehabilitation Terms and Conditions