Here are the basic tenants of the “Semi-Relaxed Interval Method”, an interval training plan for beginners or semi-competitive enthusiasts or previously broken runners or geezers, etc.
• Work in a session is typically 400m or 200m reps.
•Recovery distance is typically the same as the Work rep.
•Thus, Work Ratio is 1:2 (in terms of time; 1:1 in terms of distance.)
•Recovery interval is typically performed jog-walk-jog (whereby Work rep is entered into with a rolling start.)
•Total Work reps per session typically cover 4-5k in distance, which amounts to 10x400m or 20x200m reps (though it will not be unusual to cover 12x400m or 25x200m if feeling good.)
•Work reps are done typically at 5k-3k pace, but even 10k pace on occasion.
•Weekly structure is typically 2 days ON, 1day OFF, 3 days ON, 1day OFF.