Subjects. Thirteen healthy male volunteers with mean
(SD), age 21.0 (1.4) yr, height 1.78 (0.66) m, and mass
78.8 (11.8) kg participated in this study. Written informed
consent was gained, and a pretest medical screening questionnaire
was completed. Subjects were excluded from the
study if they had a history of cardiovascular disease, lowerlimb
musculoskeletal disorders, or allergies to lignocaine.
Ethical approval was gained from Manchester Metropolitan
University.