Timed exercise for isometric exercises

[Alpenblick]

I would like to propose two enhancements to the workout tracker:

1. Support for Negative Weights in Supported Exercises
It would be great to add functionality for negative weights in supported exercises, such as supported pull-ups. Negative weights can help users work on improving their form or control during the eccentric phase of the exercise, making their training more versatile and effective. This would allow the app to track the assistance provided by the support and adjust the overall load accordingly.

Example use cases:

• Supported pull-ups with assistance of a weight machine.
• Negative weight exercises for eccentric muscle training.

2. Timed Exercises for Isometric Movements
For isometric exercises like planks or horse stances, it would be useful to introduce timed sets, allowing users to track the duration of their hold. Currently, these exercises are often tracked by reps, but holding for a set amount of time is more relevant for exercises like these.

Example use cases:

• Planks held for 30 seconds, 1 minute, etc.
• Horse stance for 1 minute.

Implementation Suggestions:

• For negative weights, implement a feature where users can input the assistance amount (e.g., in kg or pounds) during supported exercises and subtract it from their last logged body weight or just enter a negative value.
• For timed exercises, allow users to specify the duration for each set of isometric exercises and track time-based performance rather than repetitions, this would then allow for weighted timed exercises (weighted plank for 1min)
  These enhancements would improve the app's flexibility and make it more applicable to a wider range of training styles.

Looking forward to hearing your thoughts on this!

[richbeales]

@astashov this can probably be closed due to 55ca429

[Omrigan]

But timed timed exercises is not yet implemented, right?

[astashov]

No, there's a different ticket for that

[Omrigan]

Right, I guess this one: #132

[Alpenblick]

Just saw the feature being added while in the gym today. Thanks @astashov !

[astashov]

Negative weights are done