I FINALLY have started to keep a training journal. Basically for 2 reasons:
1) My husband isn't able to lift with me as much and, up until this point, I have relied on him to remember how much weight to put on the bar. So, now, when he's not with me I won't spin my wheels putting too little or too much weight on...
2) I have VERY recently changed the entire focus of my training. I have ventured into completely un-chartered territory for me.....before I was lifting to loose weight/gain muscle, but strength was NOT a concern.
I have made the decision that I would like to be STRONGER and as a natural byproduct of strength is more muscle mass.....a win-win situation for sure.
So by keeping the training journal I am able to keep track of, and truly focus on, lifting more and more weight.
I actually had a pretty cool break though on Wednesday...it's become clear to me exactly how much a "mental game" lifting really is. As I attempted to curl the heaviest db weight ever (for me) I concentrated on the bicep muscle WILLING it to contract and bring up the weight......I got a few really solid reps...more than I ever thought I could.....
I think I finally "get" the mind over matter concept....pretty cool..(not saying I have control yet...but at least I understand what to strive for now

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Anyway, that's WHY I use a training journal...and it's just a mini spiral notebook...nothing fancy at all.