“…1996). Despite reasonable correlations between time-to-exhaustion (TTE) and actual endurance performance (Acevedo and Goldfarb, 1989;Billat et al, 1988;Burnham et al, 1995;Coggan and Coyle, 1987;Coyle et al, 1988;Hickson et al, '1988), the test-retest reliability o f such protocols is suspect (Jeukendrup et ah, 1996;Krebs and Powers, 1989;McLellan et al, 1995). For instance, Krebs and Powers (1989) and Bishop, 1997;Hickey et al, 1992;Jeukendrup et al, 1996;Palmer et al, 1995;Schabort et al, 1996) Heart Rate.…”