Skip to main content

Table 3 Presentation of changes in endurance performance variables

From: The Salzburg 10/7 HIIT shock cycle study: the effects of a 7-day high-intensity interval training shock microcycle with or without additional low-intensity training on endurance performance, well-being, stress and recovery in endurance trained athletes—study protocol of a randomized controlled trial

Endurance variable

Pre

Post

T1

T4

T5

T6

Incremental test

    

 LT (km/h)

11.9

12.1 (+ 1.7%)

12.4 (+ 4.2%)

12.4 (+ 4.2%)

 HR at LT (bpm)

154

156 (+ 1.3%)

156 (+ 1.3%)

154 (+ 0.0%)

 VO2 at LT (ml/min/kg)

39.1

39.8 (+ 1.8%)

39.8 (+ 1.8%)

40.7 (+ 4.1%)

 VO2 at LT (%VO2max)

70.0

70.8 (+ 1.1%)

68.6 (− 2.0%)

70.4 (+ 0.6%)

Ramp test

    

 VO2max (ml/min/kg)

55.8

56.3 (+ 0.9%)

57.5 (+ 3.0%)

57.8 (+ 3.6%)

 HRmax (bpm)

191

188 (− 1.6%)

189 (− 1.0%)

190 (− 0.5%)

 Lapeak (mmol/L)

10.1

11.1 (+ 9.9%)

11.2 (+ 10.9%)

12.6 (+ 24.8%)

 PPO (W)

470

489 (+ 4.0%)

496 (+ 5.5%)

503 (+ 7.0%)

 TTE (min:s)

7:25

8:05 (+ 9%)

8:20 (+ 12.4%)

8:35 (+ 15.7%)

Time trial

    

 5 km (min:s)

21:29

 

20:50 (− 3.0%)

 HR mean (bpm)

181

 

180 (− 0.6%)

 MPO (W)

349

 

368 (+ 5.4%)

  1. VO2max = maximal oxygen uptake, HRmax = maximal heart rate, Lapeak = peak blood lactate, PPO = peak power output determined via Stryd, TTE = Time to exhaustion, LT = lactate threshold according to the modified version based on Thoden, 1991, HR at LT = heart rate at lactate threshold, VO2 at LT(ml/min/kg) = oxygen uptake at lactate threshold, VO2 at LT (%VO2max) = fractional utilization of VO2max at lactate threshold, 5 km time trial = self-directed in outdoor environment, HR mean = mean heart rate, MPO = mean power output determined via Stryd