If I can add my 2 cents here, for those needing to lose some weight, 80% of the results are linked to the diet and 20% result of the workout.
I just lost 15.5 pounds in 50 days with a Low Carb diet without a workout.
Now with less weight, I will return to practice brazilian jit jitsu but not hurting my joins because the extra weight.
I really suggest you know some basics about reducing the carbo in your daily diet, the results are great and all my exams are better now.