Adaptation of Endurance Training with a Reduced Breathing Frequency

Table 2 Training program for Group E and Group C.

	Training session	Interval duration	Interval Intensity	Number of intervals	Rest duration (min) or work-to-rest ratio
Group E	from 1^st to 4^th	60% TmaxPRE	PPO_RBF	3-8	1/1 or 2/1
	5^th	First mid testing
	from 6^th to 9^th	60% Tmax1	PPO_RBF	2-8	2/1 or 5 min
	10^th	Second mid testing
	from 11^th to 14^th	70% Tmax2	PPO_RBF	3-5	2/1 or 5 min
	15^th	Third mid testing
	from 16^th to 18^th	75% Tmax3	PPO_RBF	2-4	5 min
Group C	from 1^st to 4^th	60% TmaxPRE	PPO_SB	4-8	1/1
	5^th	First mid testing
	from 6^th to 9^th	60% Tmax1	PPO_SB	3-5	1/1
	10^th	Second mid testing
	from 11^th to 14^th	70% Tmax2	PPO_SB	2-4	5 min
	15^th	Third mid testing
	from 16^th to 18^th	75% Tmax3	PPO_SB	2	5 min

PPORBF, peak power output at incremental exercise test with reduced breathing frequency; PPOSB, peak power output at incremental exercise test with spontaneous breathing; TmaxPRE, time to exhaustion at pre-training testing; Tmax1, time to exhaustion at first mid testing; Tmax2, time to exhaustion at second mid testing; Tmax3, time to exhaustion at third mid testing.