Muscle Stimulation Percentages...

[BEEF]

Had this on my PC for a while, just in a .txt doc with no name so I cannot remember where it comes from but I do know it was a study of the total percentage of muscle fibres recruited during a particular excercise. Anyway, here it is.

IEMG max motor-unit activation

Exercise/% EMG Muscle Stimulation

Pectoralis major:
Decline dumbbell bench press - 93
Decline bench press (Olympic bar) - 89
Push-ups between benches - 88
Flat dumbbell bench press - 87
Flat bench press (Olympic bar) - 85
Flat dumbbell flys - 84

Pectoralis minor:
Incline dumbbell bench press - 91
Incline bench press (Olympic bar) - 85
Incline dumbbell flys - 83
Incline bench press (Smith machine) - 81

Medial deltoids:
Incline dumbbell side laterals - 66
Standing dumbbell side laterals - 63
Seated dumbbell side laterals - 62
Cable side laterals - 47

Posterior deltoids:
Standing dumbbell bent laterals - 85
Seated dumbbell bent laterals - 83
Standing cable bent laterals - 77

Anterior deltoids:
Seated front dumbbell press - 79
Standing front dumbbell raises - 73
Seated front barbell press - 61

Biceps:
Biceps preacher curls (Olympic bar) - 90
Incline seated dumbbell curls (alternate) - 88
Standing biceps curls (Olympic bar/narrow grip) - 86
Standing dumbbell curls (alternate) - 84
Concentration dumbbell curls - 80
Standing biceps curls (Olympic bar/wide grip) - 63
Standing E-Z biceps curls (wide grip) - 61

Triceps:
Decline triceps extensions (Olympic bar) - 92
Triceps pressdowns (angled bar) - 90
Triceps dip between benches - 87
One-arm cable triceps extensions (reverse grip) - 85
Overhead rope triceps extensions - 84
Seated one-arm dumbbell triceps extensions (neutral grip) - 82
Close-grip bench press (Olympic bar) - 72

Latissimus dorsi:
Bent-over barbell rows - 93
One-arm dumbbell rows - 91
T-bar rows - 89
Lat pulldowns to the front - 86
Seated pulley rows - 83

Quadriceps:
Squats (parallel depth, shoulder-width stance) - 88
Seated leg extensions (toes straight) - 86
Hack Squats (90 degree angle, shoulder-width stance) - 78
Leg press (110 degree angle) - 76
Smith machine squats (90 degree angle, shoulder-width stance) - 60

Hamstrings:
Seated leg curls - 88
Standing leg curls - 79
Lying leg curls - 70
Stiff Legged Deadlifts - 63

Calves:
Donkey calf raises - 80
Standing one-leg calf raises - 79
Standing two-leg calf raises - 68
Seated calf raises - 61