Biophysics Lab

Dr. Travis W. Beck, Director

The Biophysics Laboratory contains following equipment:

  • Biodex System 3 Isokinetic Dynamometer
  • LIDO Isokinetic Dynamometer
  • Custom-built isometric testing station (i.e., boot) for passive and active, voluntary and nonvoluntary plantar flexor function
  • Custom-built National Instruments EMG amplifiers
  • Biopac MP150 Data Aquisition System
  • 4 EMG amplifiers
  • 4 pre-amplified surface EMG electrodes
  • 1 EBI Cardiac Output module
  • 1 ECG amplifier
  • 2 mulitpurpose amplifiers
  • 1 High Level Transducer interface
  • 4 MSI EGAS miniature rugged accelerometers for measuring surface MMG
  • Digitimer DS7HA Constant Current Stimulator
  • 2 National Instruments (NI) DAQCards, CA1000s, and programmable signal aquisition systems
  • LabVIEW 7.1 Professional Edition and MATLAB R12
  • 2 plate-loaded hip sled / leg press machines
  • 2 Olympic bar bench press stations
  • 2 mobile data aquisition carts with dual monitors for data aquisition and biofeedback
  • OTBioelecttronica EMG 16 System (16-channel linear surface EMG electrode array)


The Peripheral Quantitative Computed Tomography Laboratory housees the pQCT imaging system (XCT 3000 Research, Orthometrix, Inc.). This equipment measures corticol and trabecular bone density as well as cross-sectional muscle area for the leg, thigh, arm, and forearm.

Current Research Projects

  • Acute effects of stretching on the hamstrings-to-quadriceps ratio and risk of injury
  • Acute effects of stretching on musculotendinous stiffness and other viscoelastic properties
  • Acute effects of stretching on neuromuscular function using EMG, MMG, and nerve stimulation
  • The neural versus hypertrophic factors underlying increases in muscle strength using EMG, MMG, and pQCT for muscle cross-sectional area
  • Signal processing techniques such as the continuous wavelet transform for creating time-frequency representations of the EMG and MMG signals
  • Reliability of statistical techniques to describe the EMG and MMG vs. force relationships