Effect of high-intensity interval training on cardiorespiratory fitness, physical activity and body composition in people with schizophrenia: a randomized controlled trial
Abstract Background Exercise may improve cardiorespiratory fitness in people with schizophrenia, however, possible condition-specific cardiorespiratory disadvantages, a scarcity of methodologically sound studies, and conflicting results raise questions about the effect of exercise on maximal oxygen...
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| Format: | Article |
| Language: | English |
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BMC
2020-08-01
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| Series: | BMC Psychiatry |
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| Online Access: | http://link.springer.com/article/10.1186/s12888-020-02827-2 |
| _version_ | 1818443447163420672 |
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| author | Eivind Andersen Gry Bang-Kittilsen Therese Torgersen Bigseth Jens Egeland Tom Langerud Holmen Egil Wilhelm Martinsen Trine Stensrud John Abel Engh |
| author_facet | Eivind Andersen Gry Bang-Kittilsen Therese Torgersen Bigseth Jens Egeland Tom Langerud Holmen Egil Wilhelm Martinsen Trine Stensrud John Abel Engh |
| author_sort | Eivind Andersen |
| collection | DOAJ |
| description | Abstract Background Exercise may improve cardiorespiratory fitness in people with schizophrenia, however, possible condition-specific cardiorespiratory disadvantages, a scarcity of methodologically sound studies, and conflicting results raise questions about the effect of exercise on maximal oxygen uptake (VO2max) in this group. The primary aim of this study, therefore, was to investigate the effect of high-intensity interval training on VO2max in people with schizophrenia. Second, we sought to determine whether the intervention would have an effect on general physical activity (PA) level and body composition. Methods Eighty-two patients with schizophrenia were randomly assigned to supervised high-intensity interval training or computer gaming skills training, performed twice a week for 12 weeks. Oxygen uptake was measured directly, during a maximum exercise session on a treadmill. PA level were assessed using ActiGraph accelerometer, and body composition was assessed by bioelectrical impedance. Differences between groups were assessed by analysis of variance using a univariate general linear model. Results There were no significant differences between the groups on any of the cardiorespiratory variables neither at baseline nor after the program. There were also no significant within-group differences in any of the cardiorespiratory fitness variables between the baseline and post-program time points, despite that 61% of the participants performing high-intensity interval training showed a significant increase in workload on the treadmill. However, 47% of the participants in the high-intensity interval training group had a ≥ 5% increase in VO2max. Participants supervised by mental health care providers with PA competence (e.g. rehabilitation center staff, sport scientist, physical trainer) had a much larger increase in VO2max compared to participants supervised by mental health workers without such competence, and when adding PA competence to the model, the intervention group increased VO2max significantly compared to the comparison group. The intervention had no significant effect on PA level or body composition. Conclusions The intervention did not improve VO2max, PA level or body composition but succeeded in increasing workload on the treadmill. With regard to VO2max, approximately half of the patients may be considered responders. Trial registration ClinicalTrials.gov ; NCT02205684 , registered July 2014, |
| first_indexed | 2024-12-14T19:00:11Z |
| format | Article |
| id | doaj.art-387cc05da1e34469815867c7503f7eb8 |
| institution | Directory Open Access Journal |
| issn | 1471-244X |
| language | English |
| last_indexed | 2024-12-14T19:00:11Z |
| publishDate | 2020-08-01 |
| publisher | BMC |
| record_format | Article |
| series | BMC Psychiatry |
| spelling | doaj.art-387cc05da1e34469815867c7503f7eb82022-12-21T22:50:58ZengBMCBMC Psychiatry1471-244X2020-08-0120111210.1186/s12888-020-02827-2Effect of high-intensity interval training on cardiorespiratory fitness, physical activity and body composition in people with schizophrenia: a randomized controlled trialEivind Andersen0Gry Bang-Kittilsen1Therese Torgersen Bigseth2Jens Egeland3Tom Langerud Holmen4Egil Wilhelm Martinsen5Trine Stensrud6John Abel Engh7Faculty of Humanities, Sports and Educational Science, University of South-Eastern NorwayDivision of Mental Health and Addiction, Vestfold Hospital TrustDivision of Mental Health and Addiction, Vestfold Hospital TrustDivision of Mental Health and Addiction, Vestfold Hospital TrustDivision of Mental Health and Addiction, Vestfold Hospital TrustClinic Mental Health and Addiction, Oslo University HospitalDepartment of Sports Medicine, Norwegian School of Sports SciencesDivision of Mental Health and Addiction, Vestfold Hospital TrustAbstract Background Exercise may improve cardiorespiratory fitness in people with schizophrenia, however, possible condition-specific cardiorespiratory disadvantages, a scarcity of methodologically sound studies, and conflicting results raise questions about the effect of exercise on maximal oxygen uptake (VO2max) in this group. The primary aim of this study, therefore, was to investigate the effect of high-intensity interval training on VO2max in people with schizophrenia. Second, we sought to determine whether the intervention would have an effect on general physical activity (PA) level and body composition. Methods Eighty-two patients with schizophrenia were randomly assigned to supervised high-intensity interval training or computer gaming skills training, performed twice a week for 12 weeks. Oxygen uptake was measured directly, during a maximum exercise session on a treadmill. PA level were assessed using ActiGraph accelerometer, and body composition was assessed by bioelectrical impedance. Differences between groups were assessed by analysis of variance using a univariate general linear model. Results There were no significant differences between the groups on any of the cardiorespiratory variables neither at baseline nor after the program. There were also no significant within-group differences in any of the cardiorespiratory fitness variables between the baseline and post-program time points, despite that 61% of the participants performing high-intensity interval training showed a significant increase in workload on the treadmill. However, 47% of the participants in the high-intensity interval training group had a ≥ 5% increase in VO2max. Participants supervised by mental health care providers with PA competence (e.g. rehabilitation center staff, sport scientist, physical trainer) had a much larger increase in VO2max compared to participants supervised by mental health workers without such competence, and when adding PA competence to the model, the intervention group increased VO2max significantly compared to the comparison group. The intervention had no significant effect on PA level or body composition. Conclusions The intervention did not improve VO2max, PA level or body composition but succeeded in increasing workload on the treadmill. With regard to VO2max, approximately half of the patients may be considered responders. Trial registration ClinicalTrials.gov ; NCT02205684 , registered July 2014,http://link.springer.com/article/10.1186/s12888-020-02827-2SchizophreniaRCTExerciseMaximal oxygen uptakePhysical activity |
| spellingShingle | Eivind Andersen Gry Bang-Kittilsen Therese Torgersen Bigseth Jens Egeland Tom Langerud Holmen Egil Wilhelm Martinsen Trine Stensrud John Abel Engh Effect of high-intensity interval training on cardiorespiratory fitness, physical activity and body composition in people with schizophrenia: a randomized controlled trial BMC Psychiatry Schizophrenia RCT Exercise Maximal oxygen uptake Physical activity |
| title | Effect of high-intensity interval training on cardiorespiratory fitness, physical activity and body composition in people with schizophrenia: a randomized controlled trial |
| title_full | Effect of high-intensity interval training on cardiorespiratory fitness, physical activity and body composition in people with schizophrenia: a randomized controlled trial |
| title_fullStr | Effect of high-intensity interval training on cardiorespiratory fitness, physical activity and body composition in people with schizophrenia: a randomized controlled trial |
| title_full_unstemmed | Effect of high-intensity interval training on cardiorespiratory fitness, physical activity and body composition in people with schizophrenia: a randomized controlled trial |
| title_short | Effect of high-intensity interval training on cardiorespiratory fitness, physical activity and body composition in people with schizophrenia: a randomized controlled trial |
| title_sort | effect of high intensity interval training on cardiorespiratory fitness physical activity and body composition in people with schizophrenia a randomized controlled trial |
| topic | Schizophrenia RCT Exercise Maximal oxygen uptake Physical activity |
| url | http://link.springer.com/article/10.1186/s12888-020-02827-2 |
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