isotonic exercise

Those who do not swim can perform isotonic exercises in the water.

Chair sit-ups are particularly helpful isotonic exercises for people in wheelchairs.

Moderate isotonic exercises, such as hiking, swimming and bicycling, are favoured for Type As.

Isotonic exercise, in which muscles are contracted as joints move, can increase endurance and help maintain range of motion in the joints.

Many of today's training protocols incorporate isometric exercises, which are often made into parts of normal, isotonic exercises.

Isometric exercises can be used to tone up specific muscles which can then be further strengthened by active isotonic exercises.

So Mr. Siciliano began developing a muscle-strengthening routine that emphasized isometric and isotonic exercises that did not require weights or other equipment.

So he was skeptical when the first suggestions began to appear 20 years ago or longer that aerobic exercise, or isotonic exercise as some call it, could lower blood pressure and even prevent development of hypertension.

"So let us take the data. . . . as suggestive evidence for a preventative effect of high physical fitness against the development of hypertension and encourage all to do regular isotonic exercise to achieve fitness," Dr. Kaplan wrote.

He has completed designs for exercise and other countermeasure equipment for the Extended Duration Orbiter (EDO), and for Space Station Freedom, including improved treadmills, rowing machines, isotonic exercise devices, and a bicycle.

The exercise can be divided into two basic types: ISOMETRIC exercises, in which stress is created in stationary muscles; and ISOTONIC exercises, such as calisthenics, running or swimming, which produce muscle tension through a range of movement.