Not exact matches
With this variation you can use a pronated (palms facing down) or
supinated (palms facing up) grip — the first one will provide a wider angle and place a stronger emphasis on your
lats and rhombs, while the second will provide a greater bicep engagement and allow you to handle more weight.
The
supinated grip, which is more isolating and restrictive than its counterpart, will allow you to better target your biceps as secondary muscles, while the pronated grip engages more muscle fibers and creates a better midrange stimulus on the back muscles, primarily targeting the
lats and anterior delts.
Your chin - ups should be performed using a
supinated grip or a neutral grip, it will be your foundational mass - building movement for your biceps, your
lats, and all your upper back musculature.
The subjects performed four variations of the
lat pull - down with 70 % relative load including the wide pronated, shoulder width
supinated, neutral grip and narrow
supinated.
Signorile et al. (2002) also compared the wide grip pronated
lat pull - down and reported significantly greater latissimus dorsi muscle activity than both the neutral and
supinated conditions.
In contrast, Lehman et al. (2004) compared the
lat pull - down performed with either a wide (150 % biacromial width) pronated grip or a
supinated medium (100 % biacromial width) grip width during isometric contractions with the bar positioned at approximately eye level.
They reported that latissimus dorsi muscle activity was greater during the pronated
lat pull - down compared with the
supinated pull - down.
Overall, therefore, the research appears to indicate that performing the
lat pull - down with a pronated grip produces greater latissimus dorsi activity than narrow,
supinated and neutral grip conditions.
Lusk et al. (2010) compared the
lat pull - down performed with a pronated and
supinated hand - grip on latissimus dorsi muscle activity.