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I was recently posed a question on my YT channel about the value of concentric strength and young athletes. I think this is a topic that needs some detailed consideration, hence I have copied my response in full and the question below. I hope it puts into context the value of concentric strength and how it's important to develop it but not so at the expense of reactivity and speed.
Yes, you do need a concentric base and this needs developing as a young athlete, but it will not be the main ingredient in your ultimate jump or sprint success.
Here's the Question:
As you may know, most of your viewers are based in the States and have been exposed to lots of American Football and the training associated with it, where people would lift weights six times a week. Many track athletes, in fact, have a football background including Christian Coleman, Will Claye and Bryce Lamb (who was a product of our rival school!) However this type of training seems like it is off with your training philosophy where you advocate two weights sessions a week. I believe most of your videos are a result of your training with athletes who already have a strong concentric base, able to jump 3m in the standing long jump, so you put weight training as a lower priority as less returns can be made from that training. Through digging through papers and being exposed to other training philosophies, I have developed a theory that the amount of weight you can lift would determine your ceiling. For example, a person who can squat 100kg would benefit less from plyometrics and bounding, therefore have it really be unlikely to be a world class jumper than a person who could squat 200kg in a condition where the two would have similar plyometric experience. Correct me if I am wrong Since much of your viewers are young high school athletes, I want your opinion on how should teenagers ages 16-18 start to develop that concentric base you referred to in some of your videos. It seems that two sessions of weights a week is little for someone looking to develop strength as quick as possible. For example, I am 16 years old and have a 2.35 m standing long jump and can squat 95 kg. Should most of the work be done in the offseason and maybe ramp up the frequency of weight sessions? I really want to use all my three seasons left wisely. Thanks for all the support you give your viewers and with the content you produce as you may have realized by now that you are the only channel on youtube who puts such effort into making these quality LJ/TJ videos PS. When will that drop jump video come out you mentioned a while ago? Really excited for that
Here's my reply:
Many thanks for your comments and the thought you have yourself put into your training and some of the theory of training. Now, in your case with your SLJ, I would recommend that you have a bigger concentric (and other muscular action) strength base. So, squatting, lunges, deadlifts etc will develop that base. Loaded jump squats and also sled pulls will also be perhaps more dynamic ways to develop this increased concentric capability. It will take time for an athlete of your age to develop this foundation strength. And, yes, despite my (slight) downplaying of concentric weight training, it is still important. I try to make the point that there are (especially for the mature athlete and ones with a high level of concentric ability) better ways to develop 'jump power'... but you do need that base. If you want to add a third session why not make it a power combination (complex/contrast) one where you add in plyos and eccentric drops for example. Then you may also benefit from the potentiating effects of the combined training methods. One thing you need to take care over is training adaptation. I would ask the question - how can the body adapt and 'grow stronger' in response to 6 sessions of weights a week? There's the over-shoot' phenomenon and the volume of training would likely create conditions for training stagnation and also potential refiguring of muscle fibre in ways that you might not want i.e. type 2x fibres to type 2a... Now, you mention your SLJ, how's your top end speed and your reactivity. I'd rather have a young athlete come to me who's fast and reactive rather than concentrically strong... strength is relatively easier to develop compared to the other qualities. I'll even use myself as an example, although I wish I trained differently back in the day (as most of us ex athletes do!) I was not that great as SLJ, at your age I was of a similar ability and only managed 2.85m at my supposed best. Yet, I ran 21.8sec and jumped 7.89m and to this day I'm still reactive at drop jumps, for example. Yes, I probably needed more of a concentric base in my early career which may have pushed me onto faster times and longer distances but it shows how innate qualities of speed and reactivity are perhaps more important. I'd say that a squat in the range of 200kg when you are mature would be a good target. Most of my male jumpers could do that, if they had to. Even I can do 150kg and I don't really weight train that much now. A note of depth of squat, I'd keep it to the range needed for the LJ and TJ and sprints, there is research that indicates that deep squatting can stretch tendons which is many ways you don't want. Shorter Achilles tendons, for example, can produce more power that longer ones. Hope this helps and guides. Will also post on the main page, in case you miss this.