If you start with light enough weights, StrongLifts should be easier than the 7-minute workout. If you get a light bar (say 5-10kg) to start with (in case 20kg

If you start with light enough weights, StrongLifts should be easier than the 7-minute workout. If you get a light bar (say 5-10kg) to start with (in case 20kg Olympic bars are too heavy), doing 5 sets of 5 squats with the bar should be easier than doing squats as fast as you can for 30 seconds straight. Then add 5lb to the bar each session and you should be able to progress no matter how weak you were to begin with.