JC's Musings

Monitoring Power Endurance

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So, this power endurance, though a little bit of an oxymoron from a true strength and conditioning perspective, seems like a quality that is worth keeping an eye on. One way I used to monitor this quality is shown in the top panel. I used to attach the linear position transducer to the bar and find the maximum power (Pmax) associated with a particular exercise/load. Thereafter I would ask the athletes to work within a certain power band, which in this example is 45-55% Pmax, and count the repetitions. In the top panel the athlete was able to maintain this bandwidth for about 40 repetitions, therefore goals were set to beat this number in ensuing sessions.

The other method was having a fixed number of repetitions (30 in the example in the bottom panel) and involved determining the average power output for the 30 reps and the fatigue index. Also, many other metrics could be calculated e.g. first 5 reps compared to last 5 reps, look at mean power in tertile ranges, etc.

Thoughts? Anybody doing something different? Using different technologies? Calculating different variables?