Category: software

iPhone application for strength testing and training

I have just received a link to a new promising application developed for iPhone/iPod touch capable of using the accelerometer housed in the smartphone to be able applied to barbells for strength testing and for monitoring strength training.

The application is called LIZA and is available here.

It seems clear from the screenshots that it is possible to record the power/load relationship and calculate also velocity of the barbell:


And it seems to also offer the ability to compare tests performed at different times:


After testing is also capable of identifying maximum power and the load corresponding to maximum power output:


A lot more info are also available in real time and as summary feedback to be stored and to be sent via email.


A video of how it works is available here.

It seems a very promising tool for personal trainers as well as for Strength and Conditioning coaches. At the moment there is no information available on the validity and reliability of the power calculations and on the accuracy of the using the accelerometer housed in the iPhone/iTouch. I am sure soon we will see some validation papers on this tool considering the fact that the University of Udine is involved in its development. Also, 1RM is estimated from the load/velocity relationship.

Liza offers also a lite version. According to the website, the lite version allows to perform the half squat test, to view the resulting data and send them via email or twitter just like the standard version; it is not possible to get any graphic representation nor save any data. The lite version displays some advertising banners.

I don’t use iPhone/iTouch, so I suggest the readers to download this application and decide for themselves if it is something worth having. Considering the cost and the fact that you don’t need any extra device, I suggest this is something worthwhile trying for any professional interested in measuring the outcome of strength training programmes.


Free software for notational/video analysis


I have recently downloaded the most recent version of LongoMatch, a free software capable of performing video analysis and tagging with loads of functions. This is another great tool, completely free and very useful for coaches, sports scientists and performance analysis.



This is a brilliant software, easy to use and user friendly. I spent about 20 minutes to figure everything out and was able to complete quickly some analysis of Handball games.


With LongoMatch you can tag the most important plays of the game and group them by categories to study each detail of the game strategy. Once you tagged a play, you can review it with a simple click, even in slow motion, and adjust the lead and lag time of each play frame by frame using the timeline. LongoMatch has support for playlists, an easy way to create presentations with plays from different games. If you prefer, you can even export the playlist to a new video.

The Manual is available here.

If you are a coach and/or a sports scientist willing to perform tagging of specific activities performed by your athletes, you definitively need to try LongoMatch a great free software!

Free video analysis software – KINOVEA


I have recently downloaded the latest version of Kinovea, a freeware video analysis tool. The new version allows all sorts of analyses to be performed using this very simple freeware software. The beauty of the software is the fact that is free and is of very good quality. I think it is a great coaching tool and with some minimal equipment can be extremely useful to share analysis of sports techniques between practitioners and coaches.

Kinovea can be dowloaded here.