A theoretical approach for modeling peripheral muscle fatigue and recovery

A bioenergetic model for simulating athletic performance of intermediate duration

“…Even though the original model (Xia and Frey Law, 2008) referred to individual muscles, we cannot claim our model represents individual muscles, because it has not been experimentally validated on this scale. Instead, we only examine the model's ability to replicate the behavior of task level activities.…”

“…While such dynamics models have existed for decades, a more recent approach (Liu et al, 2002) divides the muscle into three compartments: resting, active, and fatigued. This model has also been extended (Xia and Frey Law, 2008) to include multiple muscle fiber types and the control logic required to activate the fibers in a realistic fashion. More recently, a 4 compartment, single fiber type model was proposed which appears to faithfully replicate experimental behavior (Sih et al, 2012).…”

“…It is an improvement of the existing phenomenological model of Xia and Frey Law (2008); it is more appropriate for general simulation and use in optimal control calculations. It does not attempt to replace current knowledge on muscle physiology, nervous system control, or decades of clinical experiments.…”

“…Compartment theory has been used for modeling a single muscle (Liu et al, 2002;Xia and Frey Law, 2008). Each motor unit (MU) pool within the muscle is a collection of a finite number of similar fibers, but for modeling purposes it is convenient to treat it instead as continuous.…”

Hybrid predictive dynamics: a new approach to simulate human motion

“…Therefore, it has direct clinical applications. Although the HPD method is demonstrated for a skeletal lifting model, it is more general as it can be applied for any human motion and even for musculoskeletal models [6,7,25,30,59,61,90,95,[97][98][99].…”