[1] FIDAL, CTR STUDI & RIC, ROMA, ITALY
[2] INST SCI SPORT, DIPARTIMENTO FISIOL & BIOMECCAN SPORT, ROMA, ITALY
[3] UNIV PERUGIA, IST ANAT PATOL, I-06100 PERUGIA, ITALY
[4] UNIV CATANIA, FAC CHIM, I-95124 CATANIA, ITALY
[5] CNR, CTR STUDI FISIOL LAVORO MUSCOLARE, I-20133 MILAN, ITALY
[6] UNIV CATTOLICA SACRO CUORE, FAC CHIM, I-00168 ROME, ITALY