For instance , if you do n't have access to a rowing machine , that can be replaced with a 400 m run .
You can use those to get ideas and build your own workouts according to what equipment you have available to you .
If you do n't have access to a rowing machine , that can be replaced with a 400 m run .
You can use those to get ideas and build your own workouts according to what equipment you have available to you .