The Most Scientific Way to Train Your BACK | Training Science Explained

The video starts by breaking down the back into four main muscles: the latissimus dorsi (lats), trapezius, rhomboids, and erector spinae (spinal erectors). Each muscle's primary functions are explained, such as lats contributing to width through arm adduction and extension, traps and rhomboids contributing to thickness through scapular retraction and elevation, and spinal erectors extending the vertebral column.

Many trainees struggle to feel their lats working, often due to biceps or traps taking over. The speaker suggests pre-activation movements like one-arm lat pull-ins or cable pullovers, combined with specific coaching cues, to enhance the mind-muscle connection and increase EMG activation. Key cues involve thinking about pulling in a straight line, laterally crunching, and palpating the lat muscle during contraction. Leaning slightly forward and driving elbows down in cable pullovers are also recommended for optimal engagement.

Vertical pulls include pull-ups and lat pulldowns. Research indicates comparable lat activation between the two, with pull-ups engaging biceps more. For lat isolation, pulldowns might be better. The speaker recommends pulldowns to the front with a medium, pronated grip (1.5 times shoulder width) for maximizing lat recruitment, as studies suggest higher activation and the ability to use heavier loads while being safer for the shoulders. The V-bar attachment is also favored for training shoulder extension.

While often thought to target thickness, rows are crucial for both back thickness and width, showing equal or greater lat activity than pulldowns, plus more trap involvement. Chest-supported T-bar rows are highlighted for lower back support. Studies indicate exercises not requiring lower back stabilization, like inverted rows and seated cable rows, might offer greater lat activation. The bent-over barbell row is acknowledged for overall back development and erector thickness. A slightly wider than shoulder-width double overhand grip is suggested for rows, similar to lat pulldown research. Dumbbell rows are useful for addressing asymmetries but have overloading limitations. The rope face pull is discussed for rear delt and trap development.

For upper traps, barbell shrugs with a slightly wider grip are recommended to maximize recruitment, aligning with the orientation of upper trap fibers. However, for heavy power shrugs, a closer grip is acceptable. Deadlifts are excellent for isometrically training traps and spinal erectors but are considered a lower body exercise. Rack pulls or block pulls can make deadlifts more trap-focused. For spinal erectors, isolation work is unneeded if squats and deadlifts are performed, but weighted lower back extensions are a good alternative. The video briefly mentions a related video for a full breakdown on neck and trap training.

The lats and traps are predominantly fast-twitch (Type 2), suggesting they respond well to heavier loads, while spinal erectors are slow-twitch (Type 1) and may benefit from lighter loads. A variety of rep ranges is advised for overall development. A training frequency of two to three times per week is optimal for most. Prioritizing back training early in the week and adding wide grip pull-ups on non-back training days helps increase weekly volume. Caution is advised for volumes exceeding 25 working sets per week to prevent recovery issues.

The speaker thanks viewers and announces an eight-week back hypertrophy program, an elaboration on the video's concepts, including periodization and programming. The program targets the back three times a week with varied exercises. Squarespace is thanked for sponsoring the video, offering a discount code for their website builder.