Isometric exercise

Isometric exercise or "isometrics" are a type of strength training in which the joint angle and muscle length do not change during contraction (compared to concentric or eccentric contractions, called isotonic movements). Isometrics are done in static positions, rather than being dynamic through a range of motion. The joint and muscle are either worked against an immovable force (overcoming isometric) or are held in a static position while opposed by resistance (yielding isometric).
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Isometric exercise n. Exercise performed by the exertion of effort against a resistance that strengthens and tones the muscle without changing the [more]Isometric exercise - Community and Resources

Noun
1. muscle-building exercises (or a system of muscle-building exercises) involving muscular contractions against resistance without movement (the muscles contracts but the length of the muscle does not change)
(synonym) isometrics
(hypernym) exercise, exercising, physical exercise, physical exertion, workout

Eng: isometric exercise
Urdu: ہَم پیمانَہ وَرزِش ۔ ہَم اندازَہ وَرزِش ۔