A preliminary investigation about the observation of regional skin temperatures following cumulative training loads in triathletes during training camp

Understanding the effect of window length and overlap for assessing sEMG in dynamic fatiguing contractions: A non-linear dimensionality reduction and clustering

“…The three frequency features combined with the five window lengths and the five overlaps resulted in 75 time series containing a variation of the median, mean, and peak frequencies obtained from each EMG burst (Figure 1). We applied a linear regression to estimate the rate of change in frequency (Hz s -1 ) during the motor task (Horita and Ishiko, 1987;Priego-Quesada et al, 2019), see Figure 1. From the same 75 time series, the coefficient of variation, defined as the ratio between standard deviation and mean and expressed as a percentage, was obtained for each frequency feature.…”

A Termografia Infravermelha Como Aliada Na Prevenção E Diagnóstico De Lesões Musculoesqueléticas No Esporte: Uma Revisão Narrativa

“…Esses achados concordam com estudos anteriores (Silva et al, 2018;Perez-Guarner et al, 2019). Mas, discordam de outras investigações (Fernandes et al, 2017a;Priego-Quesada et al, 2019).…”

Relationship between Skin Temperature Variation and Muscle Damage Markers after a Marathon Performed in a Hot Environmental Condition

“…Although sCK and sLDH are considered good indicators of muscle damage [ 11 ], other indirect tools have been used to decrease the invasive procedure during blood collection, such as using visual analog scales to measure DOMS [ 12 ]. Although the monitorization of baseline skin temperature (Tsk) using infrared thermography (IRT) was another methodology proposed, the results of the different investigations are contradictory [ 13 , 14 , 15 , 16 , 17 ].…”

“…However, a recent study indicated that muscle damage increases peripheral vasoconstriction, covering up inflammatory effects [ 16 ]. In addition, while some studies observed increments of baseline Tsk in the posterior days after exercise [ 14 , 17 ], others did not find differences [ 13 , 15 , 16 ], which makes further investigation more necessary. Finally, most of these studies performed the exercise in moderate environmental conditions, such as a marathon at 16 °C [ 16 ], a half-marathon at 15 °C [ 15 ], calf-rising repetitions at 23 °C [ 13 ], or triathlon training camp at 12 °C [ 14 ], and only one study in which the exercise was soccer matches at higher temperatures (28 °C) [ 17 ].…”