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n.

1. 1. A mechanism rotated by people treading on the moving steps of a wheel.
   2. A similar device operated by an animal treading a continuous sloping belt.
2. An exercise device consisting of a continuous moving belt on which a person can walk or jog while remaining in one place.
3. A monotonous task or set of tasks seeming to have no end.

An exercise machine consisting of a moving belt on which you walk or run. The intensity of the exercise can be adjusted by altering the speed of the belt or altering its gradient.

Once the preserve of fitness clinics, physiology laboratories, and hospitals, treadmills are becoming more common as an item of home fitness equipment. There has been a phenomenal growth in sales in the USA. Treadmill running now ranks as one of the top activities among Americans. Some treadmills are supplied with computerized equipment to monitor speed, distance travelled, and pulse rate. A video of inspiring scenes and motivational exhortations is often included with the package. You should remember to follow the same precautions when treadmill running as when doing other exercise: warm-up before and cool down after the exercise, and increase your training progressively (see progression).

Treadmills are used in physiology laboratories to measure fitness. A non-motorized treadmill is commercially available to measure power output during sprint training. The sprinter uses his or her own forces to move the belt. The speed of the belt, and the forces the sprinter exerts to move the belt and to pull against waist-straps (recorded on strain gauges), are used to calculate the power output. Motorized treadmills are more often used to measure aerobic fitness because they demand the use of the arms, torso, and legs, requiring high rates of oxygen consumption. Unfortunately, the test can be so demanding that even healthy individuals have a small risk of sudden cardiac death. Leonard Shapiro in the Oxford textbook of sports medicine, estimates the sudden death rate to be once in every 375 000 hours of treadmill activity in healthy individuals, and as high as once in 6000 hours in people with heart disease. So, if you have a healthy bank balance that enables you to buy one of these machines, go to a doctor to ensure that you have an equally healthy heart before you use it.

Motorized treadmills are often used in hospitals to test for cardiovascular disease (see graded exercise test) although they are losing favour because the results are not very reliable for diagnosis. Many hospital treadmills incorporate electrocardiograms to measure heart activity, and other devices to measure blood pressure and breathing rate. The great advantage of hospital treadmill tests is that there is expert help on hand if anything goes wrong.

noun

A habitual, laborious, often tiresome course of action: routine, rut¹. Informal grind. Slang groove. See usual/unusual.

A device consisting of a large belt on which a person walks or runs. The belt is moved by the person or by an electric motor. A treadmill is used as an ergometer to measure a person's work output under controlled conditions. Workload is varied by changing the speed and/or the angle of inclination (gradient) of the belt. Most people find treadmills easy to use and they can produce their peak performances on these devices. However, treadmills are not very good for measuring physiological responses to work output in people whose weights have changed, because resistance is directly related to body weight. Also, measuring blood pressure and taking blood samples becomes difficult when a person is jogging on a treadmill (compare cycle ergometer).

Treadmill

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Dansk (Danish)
n. - trædemølle

Nederlands (Dutch)
tredmolen (ook figuurlijk0

Français (French)
n. - (Hist) trépineuse, roue à cheville, (fig) train-train, engrenage

Deutsch (German)
n. - Tretmühle

Ελληνική (Greek)
n. - μάγκανο, ποδοκίνητος τροχός, (μτφ.) μαγκανοπήγαδο, κουραστική ρουτίνα

Italiano (Italian)
lavoro ingrato, mola da tortura, mulino azionato dal camminare

Português (Portuguese)
n. - tarefa monótona e árdua (f), uma máquina de exercício (f)

Русский (Russian)
однообразный, механический труд, гимнастика: приспособление ходить на месте

Español (Spanish)
n. - rueda de ardilla, rutina

Svenska (Swedish)
n. - trampkvarn, ekorrhjul, grottekvarn

中文（简体） (Chinese (Simplified))
踏车, 单调的工作

中文（繁體） (Chinese (Traditional))
n. - 踏車, 單調的工作

한국어 (Korean)
n. - 단조롭고 고된 일, 밟아 돌리는 바퀴

日本語 (Japanese)
n. - 踏み車, 足踏み水車, 踏み車の刑, 単調な仕事

العربيه (Arabic)
‏(الاسم) طاحون ألدوس,‏

עברית (Hebrew)
n. - ‮מתקן להנעה סיבובית ע"י משקלם של הדורכים על מדרגות בצדו הפנימי של גלגל עומד נעות, מיתקן דומה המשמש לתירגול, חגורת דוושות, עבודה חדגונית‬

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treadmill	Proform Treadmill
Image Treadmill	Professional Treadmill