Are repetitions using isometrics of value?

[Yochanan]

I have been a believer of isometrics (sometimes called static contraction) exercise for years (I'm 56). I have rock-hard muscles, but I sometimes used to injure myself by going for maximum pushes/pulls without first warming up. Warming up by pushing at about half-strength for 5-10 seconds or so does help. My next question is this - is there any benefit to doing "reps" for each exercise?

[musclesntx]

Originally Posted by Yochanan

I have been a believer of isometrics (sometimes called static contraction) exercise for years (I'm 56). I have rock-hard muscles, but I sometimes used to injure myself by going for maximum pushes/pulls without first warming up. Warming up by pushing at about half-strength for 5-10 seconds or so does help. My next question is this - is there any benefit to doing "reps" for each exercise?

Yoc,

The thing with isometrics is that you'll only get stronger in the position of which you are holding the weight.

LOL - I can see where you'd jack yourself up by not warming up. Warm up, always. Now, I'm not sure about your second question - of course there is benefit to doing reps for each exercise.