OBJECTIVES To determine the effect of unknown exercise duration and an unexpected increase in exercise duration on rating of perceived exertion (RPE), affect, and running economy during treadmill running. METHODS Sixteen well trained male and female runners completed three bouts of treadmill running at 75% of their peak treadmill running speed. In the first trial, they were told to run for 20...

according to the few studies in active rest interval between the resistance exercises sets, it can’t be explicitly commented about the effect of it on performance in consecutive sets. purpose: the purpose of the current study was to compare different active and passive rest interval durations (3 and 4 minutes) on the numbers of repetition of bench press with 50 and 75 percent of 1rm in untraine...

parathyroid hormone (pth) is the major factor of calcium homeostasis. this hormone increases calcium uptake in intestines through stimulation of the active formation of vitamin d and eventually increases bone density. the aim of this study was to investigate the effect of one session of resistance and endurance activity on pth and alp in untrained young girls (mean age 21.9±1.23 yrs, height 161...

The instantaneous effect of the sound of a passing truck on sleep of five male students, 23 to 25 years of age, was assessed. The peak levels of noise were adjusted to 55, 60, and 65 dB (A) with intervals of 18 and 13 minutes, and a frequency of one per hour. Background noise in the experimental room was Leq 42 dB (A). The sleep stage of each epoch was visually judged based on the criteria of R...

Selection criteria for cells and recordings. During each of the three behavioral conditions (spatial navigation, wheel running, and REM sleep), only putative pyramidal cells whose average firing rates were in the 0.2-7 Hz range were used. Putative interneurons, defined as having an average firing rate above 7 Hz over an entire recording session, were excluded. Recordings with at least N=60 neur...