Learn More
The purpose of this study was to examine the accuracy of the Caltrac personal activity computer during walking and running. Ten women and 10 men walked at speeds of 2-5 mph and ran at speeds of 4-8 mph on a horizontal treadmill. Two Caltrac monitors were attached over opposite hips: one programed to give caloric expenditure and the other to give Caltrac(More)
The purpose of the study was to measure arterial blood pressure with the Finapres tm noninvasive, continuous blood pressure monitor (FBPM) to characterize the continuous blood pressure response during three sets of a 10-repetition maximum double-leg press exercise. Seven recreational weight lifters volunteered for this study. Preliminary sessions determined(More)
Myosin in adult murine skeletal muscle is composed primarily of three adult fast myosin heavy chain (MyHC) isoforms. These isoforms, MyHC-IIa, -IId, and -IIb, are >93% identical at the amino acid level and are broadly expressed in numerous muscles, and their genes are tightly linked. Mice with a null mutation in the MyHC-IId gene have phenotypes that(More)
The perception of muscle soreness is probably due to the activation of free nerve endings around muscle fibers. These nerve endings serve as receptors of noxious stimuli associated with muscle damage. Modulation of soreness may take place at the peripheral receptor sites or at a central or spinal level. This multilevel modulation may explain the large(More)
The greater fluctuations in motor output that are often exhibited by old adults can be reduced with strength training. The purpose of the study was to determine the effect of strength and steadiness training by old adults on fluctuations in force and position during voluntary contractions with the quadriceps femoris muscle. Healthy old adults (65-80 yr)(More)
10.1152/ japplphysiol.00832.2001.-To examine the effects of gene inactivation on the plasticity of skeletal muscle, mice null for a specific myosin heavy chain (MHC) isoform were subjected to a voluntary wheel-running paradigm. Despite reduced running performance compared with nontransgenic C57BL/6 mice (NTG), both MHC IIb and MHC IId/x null animals(More)
1. Serum creatine kinase (CK) and muscle soreness, common indicators of muscle damage, were assessed in 16 subjects after performance of two bouts of eccentric exercise spaced 7 days apart. The purpose was (1) to examine rapid muscle adaptation when the ipsilateral limb was exercised on the second bout and (2) to investigate possible central adaptations(More)
In an attempt to more clearly understand the strength characteristics of female rock climbers and whether those variables affect and predict climbing performance, 2 indoor climbing performance tests (route and bouldering) were compared to a series of muscular strength tests performed by moderate (n = 6), intermediate (n = 6), and expert (n = 6) female rock(More)
Total haemoglobin mass (Hb(mass)) can be assessed with low measurement error using carbon monoxide (CO) rebreathing. However, variability in measurement error of Hb(mass) has been reported across laboratories and it has previously been suggested that CO leaks contribute to this variability. As a result of employing a standardized leak monitoring procedure(More)
Since the etiology of the drift in VO2 during downhill running is unclear, this study was designed to assess the contribution of heart rate (HR), ventilation (VE), blood lactate, rectal temperature (RT), muscle damage, and several variables that have not previously been included in VO2 drift research: muscle temperature (MT), and stride rate (SR) and length(More)