Table 3.

Physiological responses to an extreme conditioning programme session

Study	Type of training	Subjects	Protocol of ECPs	Lactate (mmol L-1)	HR	RPE
Tibana et al 28	ECP	Trained men	Protocol 1—10 min AMRAP of: 30 double-unders and 15 reps of power snatches (34 kg). Protocol 2—12 min AMRAP of: Row 250 m 25 6″ Target Burpees	1=IPE—11.8±1.3 2=IPE—9.0±2.5	–	–
Szivak et al 50	High-intensity functional training	Untrained women/men	The protocol consisted of the back squat, bench press and deadlift exercises, beginning with 10 repetitions of each exercise, respectively. Each set decreased by 1 repetition until the final set of a single repetition (descending pyramid scheme), for example, 10 repetitions of back squat, 10 repetitions of bench press and 10 repetitions of deadlift, followed by 9 repetitions of back squat, 9 repetitions of bench press and 9 repetitions of deadlift. This repetition scheme continued until 1 single repetition of each exercise was performed on the final circuit. The weight used for the exercise protocol was set at 75% of the subject’s previously established 1RM in each exercise.	Men=IPE—14.2±2.3 Women=IPE—9.1±2.2	Men=peak values of 191 bpm. Women=peak values of 190 bpm.	Men=estimated mean during all protocol ~8 Women=estimated mean during all protocol ~8
Maté-Muñoz et al 31	CrossFit	Trained men	Protocol 1—‘Cindy’ which involves executing the greatest number of sets of 5 pull-ups, 10 push-ups and 15 air squats (bodyweight squats) in 20 min. Protocol 2—The WOD consisted of conducting the maximum number of double unders possible in 8 sets of 20 s with 10 s of rest between sets. Protocol 3—The maximum number of power cleans (Olympic lifts) was executed lifting a load equivalent to 40% of the individual’s 1RM during 5 min.	1=IPE—11.7±2.3 2=IPE—10.1±3.0 3=IPE—11.2±2.6	–	–
Tibana et al 19	ECP	Trained men	Protocol 1—10 min AMRAP of: 30 double-unders and 15 reps of power snatches (34 kg). Protocol 2—12 min AMRAP of: Row 250 m 25 6″ Target Burpees	–	1=IPE—86%±11% of HRmax 2=IPE—82%±12% of HRmax	1=IPE—8.8±1.2 2=IPE—8.0±1.2
Kliszczewicz et al 29	High-intensity functional training	Trained men	Protocol 1—The workout ‘Grace’ that consists of 30 power clean & jerks at 61.4 kg using an Olympic barbell. Protocol 2—AMRAP of 250 m row on a rowing ergometer (Concept 2), 20-kettlebell swings at 16 kg and 15-dumbbell thrusters with two 13.6 kg dumbbells.	1=IPE—14.3±2.0 2=IPE—3.7±1.5	1=AVG—92.7%±4% of HRmax. 2=AVG—91.3±3% of HRmax.	–
Perciavalle et al 51	CrossFit	Trained men	Protocol—For time: 27-21-15-9 repetitions in term of Row (calories) and Thrusters, by using a rowing ergometer and a barbell	IPE—13.8±1.2	–	–
Kliszczewicz et al 30	CrossFit	Trained men	Protocol—‘Cindy’ which involves executing the greatest number of sets of 5 pull-ups, 10 push-ups and 15 air squats (bodyweight squats) in 20 min.	–	IPE=97.7%±1.9% of HRmax	IPE=9.0±0.3
Tibana et al 52	High-intensity functional training	Trained men	Protocol 1—‘Fran’ is characterised by couplet barbell thrusters (a front squat to push press) and pull-ups following a 21–15–9 repetition scheme, where 21 thrusters were completed, then 21 pullups completed, 15 thrusters and 15 pull-ups, 9 thrusters and 9 pull-ups completed for time. Variations of pullups, including butterfly and kipping, were encouraged. Thrusters were performed with 43.2 kg Protocol 2—The ‘Fight Gone Bad’ (FGB) comprises three rounds of Wall-ball (9 kg), Sumo deadlift high-pull (34 kg) Box Jump (50 cm), Push-press (34 kg) and Row (Calories). In this training session, subjects moved from each of five stations after a minute. The clock did not reset or stop between exercises. This is a 5 min round from which a 1 min break was allowed before repeating.	1=IPE—17.8±4.9 2=IPE—17.2±3.5	1=IPE—182.0±5.2 bpm. 2=IPE—184.4±4.1 bpm.	1=IPE—8.7±0.8 2=IPE—9.6±0.5

AMRAP, as many reps as possible; AVG, average; BPM, beats per minute; HRmax, heart rate maximum; IPE, immediately postexercise; RPE, rating of perceived exertion; WOD, workout of the day.