Exercise and intermittent claudication. Blood flow in the calf muscle during walking studied by the xenon-133 clearance method.
نویسندگان
چکیده
Nineteen patients with obliterative arteriosclerotic disease of the legs and suffering from intermittent claudication were studied before and during a 6 months' training program. The maximal walking distance and the calf muscle blood flow during walking (xenon-133 clearance technique) was recorded at monthly intervals. A significant correlation was established between improvement in maximal walking distance and a change on exercise toward more normal (that is, more adequate) blood flow in the calf. In particular, it was found that calf muscle blood flow during walking was increased by physical training. The data suggest that functional factors (for example, better coordination of the working muscles or a decrease of in-between-step intramuscular pressure) as well as anatomic factors (increase in number or diameter of collateral vessels, or both) are involved in increasing collateral efficiency.
منابع مشابه
Blood Flow in the Calf Muscle During Walking Studied by the Xenon - 133 Clearance Method
Nineteen patients with obliterative arteriosclerotic disease of the legs and suffering from intermittent claudication were studied before and during a 6 months' training program. The maximal walking distance and the calf muscle blood flow during walking (xenon-133 clearance technique) was recorded at monthly intervals. A significant correlation was established between improvement in maximal wal...
متن کاملExercise and Intermittent Claudication
Nineteen patients with obliterative arteriosclerotic disease of the legs and suffering from intermittent claudication were studied before and during a 6 months' training program. The maximal walking distance and the calf muscle blood flow during walking (xenon-133 clearance technique) was recorded at monthly intervals. A significant correlation was established between improvement in maximal wal...
متن کاملMuscle blood flow during exercise in intermittent claudication. Validation of the 133-xenon clearance technique: clinical use by comparison to plethysmography and walking distance.
متن کامل
MUSCLE BLOOD FLOW DURING EXERCISE In patients suffering from intermittent claudication,
Pathophysiological considerations predict that exercise blood flows at comparable work loads must always be reduced in claudicants in comparison to normal subjects. The present study verified that the exercise blood flow determined by 133xenon clearance measurements in the gastrocnemius muscle in claudicants and in a control group differed widely. As expected, a statistically significant correl...
متن کاملMUSCLE BLOOD FLOW DURING EXERCISE In patients suffering from intermittent claudication,
Pathophysiological considerations predict that exercise blood flows at comparable work loads must always be reduced in claudicants in comparison to normal subjects. The present study verified that the exercise blood flow determined by 133xenon clearance measurements in the gastrocnemius muscle in claudicants and in a control group differed widely. As expected, a statistically significant correl...
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عنوان ژورنال:
- Circulation
دوره 39 3 شماره
صفحات -
تاریخ انتشار 1969