Isometric, isotonic, and isokinetic exercises refer to the different techniques for activating and strengthening muscles. Isometric exercises, like planks, involve activating muscles with no movement.

Muscle contraction is the tightening, shortening, or lengthening of muscles when you do some activity. It can happen when you hold or pick up something, or when you stretch or exercise with weights.

Isometric training has been practiced for centuries. The earliest adopters included martial artists in India, China and Japan, as well as yogis and Buddhist monks. Evidence suggests isometric ...

The effects of a repetition push-up exercise programme and a repetition combination isometric-isotonic push-up exercise programme upon muscular endurance as measured by maximum repetition of push-ups ...

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Introduction It has been shown that caffeine promotes vigilance, attention, mood and arousal 5. The potential mechanisms of caffeine’s action include its role as an adenosine receptor antagonist that ...