Motor fatigue and cognitive task performance in humans

Abstract

During fatiguing submaximal contractions a constant force production can be obtained at the cost of an increasing central command intensity. Little is known about the interaction between the underlying central mechanisms driving motor behaviour and cognitive functions. To address this issue, subjects performed four tasks: an auditory choice reaction task (CRT), a CRT simultaneously with a fatiguing or a non‐fatiguing submaximal muscle contraction task, and a fatiguing submaximal contraction task alone. Results showed that performance in the single‐CRT condition was relatively stable. However, in the fatiguing dual‐task condition, performance levels in the cognitive CRT deteriorated drastically with time‐on‐task. Moreover, in the fatiguing dual‐task condition the rise in force variability was significantly larger than during the fatiguing submaximal contraction alone. Thus, our results indicate a mutual interaction between cognitive functions and the central mechanisms driving motor behaviour during fatigue. The precise nature of this interference, and at what level this interaction takes place is still unknown.

Muscle Fatigue Affects Mental Simulation of Action

“…Our findings and complementary data from several studies, which showed that mental fatigue influences motor performance and action planning (Lorist et al, 2000(Lorist et al, , 2002Marcora et al, 2009), underline the interdependence of motor and cognitive states. Because mental training is consistently used, alone or in combination with physical training, in sports and motor rehabilitation, we consider that sport psychologists and therapists should take into consideration physical and/or mental fatigue in the elaboration of their training programs.…”

Effects of Induced Fatigue of Ankle Joint Muscle on the Capability and Recovery of Postural Control during Single-Leg Stance

“…220 Chang-Hong Youm Tae-Hyeon Kim ․ 발생할 수 있는 능력이며 만약 발목 관절의 안정근이 충분한 , 힘을 생산할 수 없다면 발목 관절의 불안정으로 인해 자세 동 , 요는 증가하게 될 것이다 (Yaggie & McGregor, 2002 Lorist, Kernell, Meijman, & Zijdewind, 2002), 은 부분을 포함하고 있는 복잡한 현상이다 이러한 근육 피로는 근수축 효율성과 Boyas & Guevel, 2011). 고유감각 정보를 변경시키며 운동 협응과 자세제어에 영향을 미친다 근육의 피로로 인한 (Chabran, Maton, & Fourment, 2002).…”

Measurement of changes in the oxygenation of quadriceps muscles during the voluntary and involuntary fatigue test in normal healthy sedentary subjects

“…It is the consequence of motor task performed over a long period of time (Lorist et al, 2002). The causes of muscle fatigue are wide-ranging with complex interaction of peripheral and central mechanism.…”