Short-Term Prognosis in Females with No or Insignificant Coronary Disease and a Diagnostic Exercise Test

1990 ◽  
Vol 10 (2) ◽  
pp. 58-64 ◽  
Author(s):  
Jan Laws Houghton ◽  
Cynthia Price ◽  
Benu Chatterjee ◽  
Kirkwood F. Adams
Keyword(s):  
Coronary Disease ◽  
Exercise Test ◽  
Short Term

Predicting coronary disease risk based on short-term RR interval measurements: a neural network approach

1999 ◽  
Vol 15 (3) ◽  
pp. 275-297 ◽  
Author(s):  
F. Azuaje ◽  
W. Dubitzky ◽  
P. Lopes ◽  
N. Black ◽  
K. Adamson ◽  
...  
Keyword(s):  
Neural Network ◽  
Coronary Disease ◽  
Disease Risk ◽  
Network Approach ◽  
Short Term ◽  
Neural Network Approach ◽  
Rr Interval

Opposite actions of caffeine and creatine on muscle relaxation time in humans

2002 ◽  
Vol 92 (2) ◽  
pp. 513-518 ◽  
Author(s):  
P. Hespel ◽  
B. Op ‘t Eijnde ◽  
M. Van Leemputte
Keyword(s):  
Relaxation Time ◽  
Exercise Test ◽  
Muscle Relaxation ◽  
Creatine Supplementation ◽  
Caffeine Intake ◽  
Short Term ◽  
Experimental Conditions ◽  
Double Blind ◽  
Musculus Quadriceps ◽  
Intermittent Contractions

The effect of creatine and caffeine supplementation on muscle torque generation and relaxation was investigated in healthy male volunteers. Maximal torque (Tmax), contraction time (CT) from 0.25 to 0.75 of Tmax, and relaxation time (RT) from 0.75 to 0.25 of Tmax were measured during an exercise test consisting of 30 intermittent contractions of musculus quadriceps (2 s stimulation, 2 s rest) that were induced by electrical stimulation. According to a double-blind randomized crossover design, subjects ( n = 10) performed the exercise test before (pretest) and after (posttest) creatine supplementation (Cr, 4 × 5 g/day, 4 days), short-term caffeine intake (Caf, 5 mg · kg−1 · day−1, 3 days), creatine supplementation + short-term caffeine intake (Cr+Caf), acute caffeine intake (ACaf, 5 mg/kg) or placebo. Compared with placebo, Cr shortened RT by ∼5% ( P < 0.05). Conversely, Caf increased RT (+∼10%, P < 0.05), in particular as RT increased because of fatigue. RT was not significantly changed by either Cr+Caf or ACaf. Tmax and CT were similar during all experimental conditions. Initial Tmax was ∼20% of voluntary maximal isometric contraction force, which was not different between treatments. It is concluded that Caf intake (3 days) prolongs muscle RT and by this action overrides the shortening of RT due to creatine supplementation.

Early positive exercise test and extensive coronary disease: Effect of antianginal therapy

1985 ◽  
Vol 55 (4) ◽  
pp. 267-270 ◽  
Author(s):  
Jhulan Mukharji ◽  
Mark Kremers ◽  
Kirk Lipscomb ◽  
C.Gunnar Blomqvist
Keyword(s):  
Coronary Disease ◽  
Exercise Test ◽  
Disease Effect
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