Abstract fm the article :
.....Ectomorphs tend to respond better to VT better than HIT. Ectomorphs are thin, light-framed and sometimes have long limbs. For these guys, it takes longer to gain muscle than for your average mesomorph, who usually has a more rectangular frame with more muscle mass. A lot of ectomorphs really need the longer workouts and higher reps to stimulate muscle growth. Conversely, for most mesomorphs, a HIT routine is usually going to result in greater gains......
High Intensity Training Versus Volume Training | Muscle & Strength
.....Ectomorphs tend to respond better to VT better than HIT. Ectomorphs are thin, light-framed and sometimes have long limbs. For these guys, it takes longer to gain muscle than for your average mesomorph, who usually has a more rectangular frame with more muscle mass. A lot of ectomorphs really need the longer workouts and higher reps to stimulate muscle growth. Conversely, for most mesomorphs, a HIT routine is usually going to result in greater gains......
High Intensity Training Versus Volume Training | Muscle & Strength