The relevance of body composition assessment for the rating of perceived exertion in trained and untrained women and men.

Mechanic power output (MPO) and oxygen consumption (VO) reflect endurance capacity and are often stated relative to body mass (BM) but less often per skeletal muscle mass (SMM). Rating of perceived exertion (RPE) has previously shown conflicting results between sexes at submaximal intensities. Individual body composition, however, largely differs due to sex and training status.

The Association of Fatigue With Decreasing Regularity of Locomotion During an Incremental Test in Trained and Untrained Healthy Adults.

Fatigue is a key factor that affects human motion and modulates physiology, biochemistry, and performance. Prolonged cyclic human movements (locomotion primarily) are characterized by a regular pattern, and this extended activity can induce fatigue. However, the relationship between fatigue and regularity has not yet been extensively studied.

A broad diversity in oxygen affinity to haemoglobin.

Oxygen affinity to haemoglobin is indicated by the p50 value (pO at 50% OHb) and critically determines cellular oxygen availability. Although high Hb-O affinity can cause tissue hypoxia under conditions of well O saturated blood, individual differences in p50 are commonly not considered in clinical routine. Here, we investigated the diversity in Hb-O affinity in the context of physiological relevance.