[quote]Brian Smith wrote:
Hi CT,
I had a question about how to use isometrics to address a squatting strength imbalance between my two legs. My right leg is WAY stronger than my left at the bottom part of the range of motion. I didn’t get answer before and I guess I asked too generally.
My question now is about the actual plan I’m thinking about. It is a use of isometrics based on your ratchet activation technique. I would love to get your criticism:
I’d be doing one-legged squats (weighted pistols) to correct the imbalance.
For activation purposes, between warm-up sets, I’ll do one isometric hold just before my butt touches my calves, for 10 seconds. Then, I’ll immediately do an isometric hold just below parallel for 10 seconds.
About 3-5 minutes after this pre-exercise activation, I’ll do my work sets like rachets â?¦
weak side: 1 rep, with a 5-sec isometric hold at bottom of the concentric phase
strong side: 1 regular rep
weak side: 3 reps, the first 2 are regular reps and the final 1 has a 10-second isometric hold at bottom of the eccentric phase
strong side: 3 regular reps
Repeat the rachet 2 more times.
After this, I’ll do regular step-ups – no isometrics – for 3x6 reps for each leg.
On another day of the week, I’ll do regular barbell back squats. Do you think this could be an effective approach to improve my left-right imbalance? Would you recommend changes or something totally different?
Any advice you have would be greatly appreciated.
Thanks,
Brian[/quote]
Some general comments…
- I do not like isometric HOLDS for activation purposes. I find that they don’t transfer well to concentric (or lifting) strength. First of all because neurologically speaking they are basically a VERY VERY VERY slow eccentric action and eccentric actions have a different recruitment pattern than concentric ones.
Second, they are submaximal by nature and devoid of acceleration. To be “activating” a movement needs either a high level of force/muscular tension production (a near maximal effort) or a high level of acceleration. Isometric holds have neither.
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The strength imbalance might be technique-related. And even if technique is not the CAUSE of the imbalance, over time you probably changed your motor pattern to accommodate the imbalance. So correcting the imbalance itself is not likely to be enough to solve the problem. You will basically learn to squat again from scratch.
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Look at your everyday posture an actions as they may be among the causes for our problem. For example, if you have a natural tendency to stand with more weight on one leg then the CNS might become more efficient at utilizing this leg. Not to mention that it might lead to a deviation or the hips which might transfer to your squatting form.