Chronic eccentric arm cycling improves maximum upper-body strength and power

European Journal of Applied Physiology
Steven J ElmerPaul Lastayo

Abstract

Eccentric leg cycling (cycle ergometry adapted to impose muscle lengthening contractions) offers an effective exercise for restoring lower-body muscular function, maintaining health, and improving performance in clinical and athletic populations. We extended this model to the upper body and evaluated the effectiveness of a 7-week eccentric arm cycling (ECCarm) intervention to improve upper-body muscular function. We also explored whether ECCarmwould alter arterial function. Participants performed ECCarm(n = 9) or concentric arm cycling (CONarm; n = 8) 3×/week while training intensity increased (5-20 min, 60-70% upper-body peak heart rate). Maximum elbow extensor strength, upper-body concentric power, and peripheral and central arterial stiffness were assessed before and after training. During training, heart rates and perceived exertion did not differ between groups (~68% upper-body peak heart rate, ~12 Borg units, both P > 0.05), whereas power during ECCarmwas ~2× that for CONarm(122 ± 43 vs. 59 ± 20 W, P < 0.01). Muscle soreness for ECCarmwas greater than CONarm(P = 0.02), however, soreness was minimal for both groups (<0.50 cm). Following training, ECCarmexhibited greater changes in elbow extensor strength (16 ± 10 vs. 1 ± 9...Continue Reading

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Citations

Nov 23, 2017·Frontiers in Physiology·Martino V FranchiMarco V Narici

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