Design of exercise test, with special reference to heart patients.

Åström, Hans; Jonsson, Björn

doi:10.1136/hrt.38.3.289

Cited by 118 publications

(26 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These values nearly correspond to our results since the use of a continuous increase in load may exaggerate the maximally achieved (stepwise increasing) load by approximately 30–40 W [24]. …”

Section: Discussionsupporting

confidence: 70%

Exercise Test in Women and Men Aged 75–77 Years

Wetterqvist

Grimby²,

Lernfelt³

et al. 2002

Cardiology

View full text Add to dashboard Cite

The purpose of this study was to investigate the physiological response to an exercise test in 75- to 77-year-old women and men. Out of a systematically chosen and representative sample of 1,245 persons from a population at the age of 70, 649 individuals remained available at the age of 75–77 years. An exercise test was performed in 335 participants (52%), 174 women and 161 men. 180 (28%) were excluded because of morbidity. 131 (20%) refused to perform an exercise test. Three persons had to be excluded because of missing data. The maximal heart rate was about 140 beats/min. Heart rates at different submaximal workloads were higher in females than in males. In males there was a significant nonlinear increase in heart rate at increasing work loads while in females this was not significant. The systolic blood pressure increased more in females than in males while working on the loads 30–50 W and 50–75 W. There was a significant nonlinear increase in systolic blood pressure in men without cardiovascular drugs during exercise on 30–75 W, but the corresponding increase was not significant in women. The highest average work load for the whole group measured during at least 4 min of near-maximal exercise on a bicycle was in women 48 W and in men 66 W. Forty-four percent of the women and 22% of the men had a physical working capacity presumably interfering with their ability to perform activities of daily living.

show abstract

Section: Discussionsupporting

confidence: 70%

Exercise Test in Women and Men Aged 75–77 Years

Wetterqvist

Grimby²,

Lernfelt³

et al. 2002

Cardiology

View full text Add to dashboard Cite

show abstract

“…It is likely that each method has merit in certain clinical situations and that in some situations both methods may be useful. 34 (45%) subsequently developed another manifestation of ischemic heart disease. Using a life-table method of analysis these workers concluded that the five year probability of developing a subsequent clinical manifestation of ischemic heart disease in subjects whose stress test became abnormal was 85%.…”

Section: Exercise Electrocardiographymentioning

confidence: 99%

Exercise stress testing.

Fortuin

Weiss²

1977

Circulation

170

View full text Add to dashboard Cite

“…The initial work load applied was 50 W and the load was increased by 10 W every minute until exhaustion [ 14]. The experimental sessions were two for each subject.…”

Section: Methodsmentioning

confidence: 99%

Physical Stress in the Middle of the Dark Phase Does Not Affect Light-Depressed Plasma Melatonin Levels in Humans

et al. 1992

View full text Add to dashboard Cite

The human pineal gland has been shown to be unresponsive to stress-induced sympathetic activation during the day. However, the effects of stress on human melatonin production have received little investigation at night, when the pinealocytes should be physiologically responsive to noradrenergic stimulation. For this purpose, plasma melatonin and cortisol levels were measured in 7 healthy men (aged 25–34 years), both in resting condition and before and after a physical exercise performed between 23.40 and 24.00 h, 30 min after exposure to bright light (2,500 lx). The exercise consisted in bicycling on a bicycle ergometer at 50% of the personal maximum work capacity (MWC) for 10 min, followed by another 10 min of bicycling at 80% of the MWC. The results clearly showed that physical exercise does not affect light-depressed plasma melatonin levels, whereas it clearly increased plasma cortisol concentrations (p < 0.002, two-way ANOVA with repeated measures), systolic blood pressure, pulse pressure and heart rate. These findings suggest that the human pineal gland is not responsive to systemic sympathetic activation induced by physical stress even in the middle of the dark phase.

show abstract

Design of exercise test, with special reference to heart patients.

Cited by 118 publications

References 0 publications

Exercise Test in Women and Men Aged 75–77 Years

Exercise Test in Women and Men Aged 75–77 Years

Exercise stress testing.

Physical Stress in the Middle of the Dark Phase Does Not Affect Light-Depressed Plasma Melatonin Levels in Humans

Contact Info

Product

Resources

About