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LAT PULLDOWNS


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Muscle Utilization Patterns Using Various Hand Positions During the Lat Pull‐down – 2002 – Signorile
– 10 men; 3 reps 10RM;
– 4 different variations (1) close neutral grip (CG), (2) close supinated grip (SG), (3) wide pronated grip anterior (WGA) (4) wide pronator grip posterior (WGP)
(a) latissimus dorsi: wide anterior >> close supinated = wide posterior > close neutral
(b) pectoralis major: close neutral > close supinated > wide anterior >> wide posterior
(c) right posterior deltoid: close neutral >> wide anterior > close supinated >>> wide posterior
(d) long head of the triceps: wide anterior >> wide posterior >> close neutral > close supinated
(e) teres major: wide anterior > wide posterior > close supinated > close neutral
· NOTE: for graph below; Mean NrmsEMG during concentric phase for (a) latissimus dorsi (b)pectoralis major (c) posterior deltoid (d) triceps long head (e) teres major

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Effects of Pronated Grip Width on the Lat Pull – 2014 – Andersen; Fimland; Wiik; Skoglund; Saeterbakken
– It is a general belief that a wider grip activates the latissimus dorsi more than a narrow one
– compare 6RM in the lat pull-down using pronated grips (1) narrow 1x biacromial distance (2) Medium 1.5 biacromial distance (3) Wide 2x biacromial distances
infraspinatus: approx. 100% for all 3 grips
trapezius: approx. 80% for all 3 grips
latissimus dorsi: approx. 75% for all 3 grips
biceps brachii: approx. 60% for all 3 grips

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Selective activation of latissimus dorsi and inferior fibers of trapezius at various shoulder angles during isometric pull-down – 2013 – Park
– 14 men performed 9 conditions of isometric pull down exercise (3 conditions of shoulder elevation × 3 conditions of movement planes)
– determine effect of isometric pulldown on muscle activity with shoulder elevation angles of 60°, 90°, 120°; sagittal, scapular, and frontal movement planes
latissimus dorsi: 60º > 90º > 120º shoulder angle
inferior fibers of trapezius: 120º > 90º > 60º shoulder angle

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