Without doing anything special, you are already using your history by just entering sets in the training screen. Because previous sets are shown there, you know about past performances of an exercise at first glance.
But there are more ways to view your history:
- Sets of an exercise in the training screen
- Sets of a session in the session view
- Session list in the history tab
- Sessions of a month in the calendar view
The session summary shows you all sets you have done during one session. They are ordered chronologically, but strictly grouped by exercise. That means, if at the end of the session you are adding one set of the first exercise, this set will be listed under the first exercise instead at the end of the list. But since each set is displayed along with its time stamp, you will easily see this.
In the session summary you can add a note for the session as a whole as well as send a session report via email. You can also post the session to Facebook, if you hit the 3 dots which will open a popup menu.
By looking at the number of records you can see how great was your session. Badges show previous record sets which are now beaten. Cups show current personal records.
Whereas one rep maximum is a measure of strength, workout volume is a measure of work. Just because you had more volume, does not mean you are stronger. Just because you had a higher 1RM, does not mean you did more work. In other words, 1RM is how good, volume is how much. The formula for volume is very simple. It is just the sum of the weight x rep for each set. That is, if you did 3 sets of 200 lbs x 10 reps, your volume would be 3 * 200 * 10, or 6000. Of course to be a true measure of work, distance would have to be considered as well as time under load. But it's an approximation. So what good is it? It is a quick and easy way to compare workouts. Just look at the session summary and see how it compares to previous sessions - maybe a little satisfaction or motivation for all your hard work. Also some training programs suggest varying from high volume to low volume workouts as a way to add variation. Low volume workouts would be higher weight with lower reps, and high volume workouts the opposite. Workouts volume can also be used to monitor over-training.
The Calendar View
The calendar gives you a quick visual overview of your workout history. You get there either from the home screen, or from the History tab and touching the calendar icon at the upper right corner.
You see how many sessions you had this month, and the total time spent. You can scroll from month to month by swiping left and right. You can select any day which will show you the sessions of this day, which can be more than one. Tap on the session will open the session summary.
The Graph View
You will work a lot with the graph view, therefore it is easily accessible directly from the training screen. Tap the graph icon at the lower bar.
By default the intensity graph is selected. For each session, it shows the best One Rep Maximum (respectively the highest number of repetitions for body weight exercises). Sometimes your best set may be your first set, other times your last set depending on your workout strategy. By graphing your best set per session, GymACE gives you the best overall impression of your workout.
You can also select a volume graph (see workout volume), a weight graph (highest weight of a session), and a repetition graph (maximum repetitions of a session).
Volume increases with each repetition (and weight) of each set. It is a measure of "how much" you do. Intensity only counts the set with the highest effort. It is a measure of "how hard" you do, which is what ultimately drives muscle growth. Sometimes you need a higher volume to progress, though.
The graph supports pinch and pan gestures for modifying the start and end dates. Also, you can tap on nodes for details.