Skip to main content

Table 2 Baseline and follow-up results in the HIT group and the MICT groupd

From: High-intensity interval training and health-related quality of life in de novo heart transplant recipients – results from a randomized controlled trial

Variables Baseline Follow-up
HIT
(n = 37)
t-test, P value Baseline Follow-up
MICT
(n = 41)
t-test, P value
Health-related quality of life SF-36v2 components summaries and subscales
 Physical Component Summary (PCS) 42.2 ± 7.6 48.4 ± 9.3 <  0.001 43.2 ± 7.7 49.0 ± 8.4 < 0.001
 Mental Component Summary (MCS) 52.5 ± 12.9 53.4 ± 11.9 0.673 55.1 ± 8.2 52.5 ± 9.6 0.086
 Physical Functioning 45.0 ± 7.0 50.8 ± 6.0 < 0.001 46.4 ± 6.4 51.6 ± 6.6 < 0.001
 Role Physical 37.6 ± 10.4 48.1 ± 9.3 < 0.001 40.8 ± 10.0 47.0 ± 10.0 < 0.001
 Bodily Pain 47.8 ± 9.3 50.5 ± 10.5 0.163 48.1 ± 9.2 49.1 ± 12.2 0.583
 General Health 48.2 ± 9.4 50.8 ± 11.0 0.067 49.8 ± 7.3 51.2 ± 9.4 0.292
 Vitality 50.6 ± 10.8 52.6 ± 12.7 0.196 51.2 ± 9.4 53.6 ± 9.0 0.031
 Social Functioning 46.7 ± 9.9 50.2 ± 9.1 0.047 48.7 ± 8.7 50.7 ± 9.0 0.278
 Role Emotional 46.8 ± 13.1 52.0 ± 9.1 0.027 50.7 ± 7.7 48.7 ± 10.5 0.246
 Mental Health 53.1 ± 11.0 53.7 ± 9.7 0.684 55.4 ± 7.8 54.0 ± 9.7 0.232
 HADS Anxiety median (IR) 3.0 (3.5) 2.0 (4.5) 0.310a 3.0 (3.5) 3.0 (4) 0.400a
 HADS Depression median (IR) 2.0 (3.5) 2.0 (4.8) 0.331a 1.0 (2.5) 1.0 (3.8) 0.866a
 VAS scale (0–100) median (IR)b   82.0 (20.5)    75.5 (37.3) 0.235c
Cardiopulmonary exercise test
 VO2peak (mL/kg/min) 19.5 ± 4.3 24.4 ± 6.5 < 0.001 21.3 ± 5.3 24.4 ± 6.7 < 0.001
 % of predicted VO2peak 53.3 ± 11.6 66.6 ± 15.4 < 0.001 58.4 ± 12.5 66.9 ± 14.8 < 0.001
 RPE (Borg scale score) 18.7 ± 0.5 18.8 ± 0.6 0.290 18.5 ± 1.1 18.8 ± 0.7 0.098
 RER 1.17 ± 0.11 1.19 ± 0.1 0.314 1.22 ± 0.13 1.22 ± 0.1 0.751
Muscular capacity
 Maximal muscle strength extensors (Newton meter) 184 ± 74 237 ± 81 < 0.001 186 ± 73 222 ± 80 < 0.001
 Muscular exercise capacity extensors (Joule) 2154 ± 952 3170 ± 1267 < 0.001 2319 ± 1201 2870 ± 1240 < 0.001
  1. Health-related quality of life, exercise capacity and muscular strength at baseline (~ 11 weeks after HTx and at 9 months intervention (first yearly annual follow-up). Variables are presented as mean ± standard deviation or median (Interquartile range (IR)).HADS Hospital Anxiety and Depression Scale, HIT High-intensity interval training, MICT moderate intensity contionuous training, RER Respiratory exchange ratio, RPE Rated perceived exertion, VAS visual analogue scale
  2. aWilcoxon Signed Rank Test
  3. bMeasured at follow-up only
  4. cMann-Whitney U test (difference between groups at follow-up)
  5. dNo difference between groups at baseline