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Effect of inosine supplementation on aerobic and anaerobic cycling performance.
Starling RD, Trappe TA, Short KR, Sheffield-Moore M, Jozsi AC, Fink WJ, Costill DL. Starling RD, et al. Among authors: costill dl. Med Sci Sports Exerc. 1996 Sep;28(9):1193-8. doi: 10.1097/00005768-199609000-00017. Med Sci Sports Exerc. 1996. PMID: 8883009 Clinical Trial.
These findings demonstrate that prolonged inosine supplementation does not appear to improve aerobic performance and short-term power production during cycling and may actually have an ergolytic effect under some test conditions....
These findings demonstrate that prolonged inosine supplementation does not appear to improve aerobic performance and short-term power …
The effect of oral coenzyme Q10 on the exercise tolerance of middle-aged, untrained men.
Porter DA, Costill DL, Zachwieja JJ, Krzeminski K, Fink WJ, Wagner E, Folkers K. Porter DA, et al. Among authors: costill dl. Int J Sports Med. 1995 Oct;16(7):421-7. doi: 10.1055/s-2007-973031. Int J Sports Med. 1995. PMID: 8550248 Clinical Trial.
Although lactate release during hand-grip testing tended to decrease in the Q10 GRP (Pre = 227 +/- 49, 2 month = 168.3 +/- 40 mumole/min) this was not significant (p > 0.05). It can be concluded that short-term (2 months) oral dosing with CoQ10 increases circulating blo …
Although lactate release during hand-grip testing tended to decrease in the Q10 GRP (Pre = 227 +/- 49, 2 month = 168.3 +/- 40 mumole/min) th …
Carbohydrate for athletic training and performance.
Costill DL. Costill DL. Bol Asoc Med P R. 1991 Aug;83(8):350-3. Bol Asoc Med P R. 1991. PMID: 1816789 Review.
Though this seldom occurs in well-fed and highly trained individuals, sugar feedings during long-term exercise has been shown to enhance performance. Thus, the important role of dietary carbohydrate before, during and after endurance activities is well established, whereas …
Though this seldom occurs in well-fed and highly trained individuals, sugar feedings during long-term exercise has been shown to enha …
Effects of increased training volume on the oxidative capacity, glycogen content and tension development of rat skeletal muscle.
Kirwan JP, Costill DL, Flynn MG, Neufer PD, Fink WJ, Morse WM. Kirwan JP, et al. Among authors: costill dl. Int J Sports Med. 1990 Dec;11(6):479-83. doi: 10.1055/s-2007-1024841. Int J Sports Med. 1990. PMID: 2286488
This study examined the effects of a short-term sudden increment in training load on the oxidative capacity, glycogen content and tension-generating ability of rat skeletal muscle. ...
This study examined the effects of a short-term sudden increment in training load on the oxidative capacity, glycogen content and ten …
Skeletal muscle metabolism of sea-level natives following short-term high-altitude residence.
Young AJ, Evans WJ, Fisher EC, Sharp RL, Costill DL, Maher JT. Young AJ, et al. Among authors: costill dl. Eur J Appl Physiol Occup Physiol. 1984;52(4):463-6. doi: 10.1007/BF00943381. Eur J Appl Physiol Occup Physiol. 1984. PMID: 6540677
The influence of short-term high-altitude (HA) residence on intramuscular pH and skeletal muscle enzyme activity of sea-level (SL) residents was investigated. ...
The influence of short-term high-altitude (HA) residence on intramuscular pH and skeletal muscle enzyme activity of sea-level (SL) re …
Relationship between muscle QO2 and fatigue during repeated isokinetic contractions.
Ivy JL, Sherman WM, Miller JM, Maxwell BD, Costill DL. Ivy JL, et al. Among authors: costill dl. J Appl Physiol Respir Environ Exerc Physiol. 1982 Aug;53(2):470-4. doi: 10.1152/jappl.1982.53.2.470. J Appl Physiol Respir Environ Exerc Physiol. 1982. PMID: 7118666
These data suggest that 1) the muscle tissue's capacity for aerobic metabolism influences the rate of fatigue development even during a strenuous short-term isokinetic exercise task, and 2) factors other than fiber type may interact to confound the prediction of fiber type …
These data suggest that 1) the muscle tissue's capacity for aerobic metabolism influences the rate of fatigue development even during a stre …