Lower limb alactic anaerobic power output assessed with different techniques in morbid obesity

Short-term alactic anaerobic performance in jumping (5 consecutive jumps with maximal effort), sprint running (8 m) and stair climbing (modified Margaria test) were measured in 75 obese subjects (BMI: 40.3±5.0 kg/m ²) and in 36 lean control subjects (BMI: 22.4±3.2 kg/m ²) of the same age and gender distribution. The results show that obese subjects attained a significantly lower specific (per unit body mass) power output both in jumping (W _spec,j; pspec,s; pspec,s (and hence the vertical velocity in climbing, v _v) was closely correlated with W _spec,j (R ²=0.427, ps; pc,r; pspec,j seems to be a determinant of the poorer motor performance of obese, being significantly correlated with: I) the vertical displacement of the centre of gravity (R ²=0.853, pv in stair climbing; and III) with T _c,r (R ²=0.492, ps (R ²=0.266, p2=0.454, p