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When lowering a barbell during a bicep curl, the biceps muscle activates more when the arms are hanging straight down than when the shoulders are bent forward, and this difference is larger with an...
When lifting weights with straight arms, a straight barbell causes slightly higher activation of the biceps muscle compared to an EZ barbell, but this difference disappears when the arms are bent.
When performing biceps curls with a weight that allows 8 repetitions, bending the arms during the upward motion increases electrical activity in the biceps muscle by about 18% to 20% compared to...
In untrained young women, resistance training that focuses on the beginning part of the movement causes more muscle growth in the lower part of the biceps compared to training that focuses on the end...
In untrained young women, lifting weights through the first half of the elbow movement for eight weeks leads to greater gains in overall strength than lifting through the second half, even if the...
In untrained young women, performing bicep exercises through a shorter range of motion (from fully extended to halfway bent) leads to more muscle growth near the elbow than using a longer range (from...
In untrained young women, training the biceps through the fully bent position of the elbow for eight weeks does not lead to more muscle growth than training through the partially bent position, when...
In untrained young women, performing bicep exercises using only the first half of the movement range for eight weeks leads to more muscle growth in the lower part of the biceps and greater strength...
For beginners, lifting weights with one arm or both arms at the same time results in similar biceps growth, indicating that the total amount of weight lifted and number of repetitions matter more...
Training one arm at a time with biceps curls leads to the same increase in strength in both arms as training both arms together, in women who have not previously trained.
When young women who have not trained before perform biceps curls with one arm, that arm gets stronger, but the other arm does not.
In untrained young women, doing biceps curls with one arm or both arms at the same time leads to similar increases in biceps muscle thickness after 8 weeks, indicating that the total amount of work...
In untrained young women, doing bicep curls with one arm at a time may lead to slightly stronger gains in that arm compared to using both arms together, but does not result in larger muscle growth,...
Both dumbbell curls and dumbbell rows thicken the upper part of the biceps equally after 8 weeks, meaning multi-joint exercises like rows can build the upper biceps just as well as curls.
When people perform dumbbell curls, the part of the biceps closer to the elbow grows more than the part closer to the shoulder, suggesting that how force is distributed through the muscle depends on...
After 8 weeks of training, dumbbell curls lead to a 11% increase in muscle size near the elbow compared to dumbbell rows, which result in only a 1% change, suggesting that exercises involving a...
After one workout session, dumbbell curls cause more temporary swelling in the upper arm muscles than dumbbell rows, suggesting that the two exercises may trigger different levels of metabolic stress...
After 8 weeks of training, doing dumbbell curls leads to more thickening in the upper part of the biceps compared to dumbbell rows, which do not significantly thicken the lower part of the biceps.
When muscle thickness is measured using ultrasound after strength training, differences in thickness between the upper and lower parts of the biceps indicate localized muscle growth, not just...
After 8 weeks of weight training, the upper part of the biceps grows more with both dumbbell curls and rows, while the lower part grows more with curls than with rows, indicating that different parts...
After 8 weeks of doing dumbbell rows, the muscles at the back of the upper arm near the elbow show almost no growth, suggesting that this exercise may not effectively build muscle in those specific...
After one workout, dumbbell curls cause a larger temporary increase in muscle thickness near the elbow compared to dumbbell rows, which may reflect differences in how much the muscles are activated...
After 8 weeks of training, dumbbell curls lead to a small increase in muscle thickness near the elbow in the biceps area, while dumbbell rows do not produce a similar change in the distal regions,...
Different ways of performing biceps curls lead to small but detectable differences in how much muscle grows in specific areas and how much strength improves for that movement.