TY - JOUR AU - Chavarren, J; Calbet, J A TI - Cycling efficiency and pedaling frequency in road cyclists JO - Eur J Appl Physiol Occup Physiol VL - 80 PY - 1999 DO - 10.1007/s004210050634 L3 - PubMed-ID: 10541922 SP - 555 EP - 563 ER -