Monthly Archives: January 2014

Older people really do have ‘jerkier’ movements

This entry was posted in Motor Impairment Blog New finding Sensation & falls and tagged accelerometers aging head jerk Movement stability synamic walking wearable sensors on by

Up to one in three people over 65 fall each year (Masud & Morris, 2001) and many older people have impaired dynamic stability. However, a cause and effect relationship between gait speed, step variability, dynamic stability, and falls is complex. For example, older people may walk more slowly to compensate […]

Accelerometers used to measure head jerk.

Fatigue-Related Pain From Distal Muscles Reduces Central Motor Drive Of Proximal Muscles Of The Same Limb

This entry was posted in Motor Impairment Blog New finding Pain & motor control and tagged central nervous system muscle fatigue nociception pain voluntary activation on by

Understanding the mechanisms of fatigue provides insight into the limits of human exercise performance and diseases in which fatigue is a symptom that limits activity. Both peripheral and central mechanisms contribute to muscle fatigue. Central fatigue is defined as a progressive exercise-induced reduction in the ability to voluntarily activate a […]