Arnold G Nelson

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Taste buds in foliate papillae of the rhesus monkey were examined by electron microscopy. Three distinct cell types were identified. Type I cells were narrow elongated cells containing an oval nucleus, bundles of intermediate filaments, several Golgi bodies, and characteristic apical membrane-bounded dense granules. These cells exhibited morphological(More)
While it has been well established that an acute stretching program can inhibit maximal muscle performance, the amount of stretching needed to produce the deleterious response is unknown. Therefore this study examined the dose-response relationship between acute stretching and strength inhibition. Eighteen college students performed a one repetition maximum(More)
Purpose: This study investigated the influence of static stretching exercises on specific exercise performances. Methods: Thirty-eight volunteers participated in this study. The stretching group (STR) consisted of 8 males and II females whose activity was limited to a 10-wk, 40-min, 3-d'wk-1 static stretching routine designed to stretch all the major muscle(More)
This study was designed to examine the effects of proprioceptive neuromuscular facilitation (PNF) and weight training (WT) on muscular strength and athletic performance. Thirty college women were randomly assigned to one of three groups: WT, PNF, and control. WT and PNF subjects trained 3 days a week for 8 weeks. All subjects were tested for changes in knee(More)
Previous research has shown that an acute bout of passive muscle stretching can diminish performance in certain movements where success is a function of maximal force and/or power output. Two possible mechanisms that might account for such findings are a change in active musculotendinous stiffness and a depression of muscle activation. To investigate the(More)
The purpose of this investigation was to examine the relationships between measures of maximal isometric force (peak force [PF]), rate of force development (RFD), vertical jump performance (VJ) and 1-repetition maximum (1RM) strength in recreationally trained men. The subjects in this study were 26 men ([mean +/- SD]: age 22 +/- 1 years; height 175 +/- 7(More)
Studies into the relationship between acute stretching and maintenance of postural balance have been inconclusive. It was hypothesized that familiarization with the task and subsequent learning might be involved in the conflicting results. Therefore, this study was to designed determine if a regimen of static stretching exercises after a familiarization(More)
The unloaded shortening velocity (Vus), twitch time to peak force (TTP), and myosin heavy chain (MHC) composition of motor units from soleus muscles of neonatal rats (7-8 and 16-18 days) were compared. The Vus range was from 2.2 to 7.1 fiber lengths (fl).s-1 and was unchanged from 7-8 to 16-18 days. TTP shifted from 7-8 (range, 66-120) to 16-18 days (range,(More)
In brief: Thirty trained men carrying either nothing, 1-lb weights, or 5-lb weights in each hand were tested on a motorized treadmill. The purpose was to determine whether using hand-held weights elicits a pressor reflex, in which heart rate and BP rise disproportionately to oxygen consumption (VO2). VO2 was measured during walking and running to see if it(More)
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