hh.sePublications
Change search
Link to record
Permanent link

Direct link
Olsson, M. Charlotte, DocentORCID iD iconorcid.org/0000-0002-9337-5113
Alternative names
Publications (10 of 57) Show all publications
Torell, A., Olsson, M. C., Andersson, Å., Malm, K., Åberg, I., Wiking, E. & Haglund, E. (2023). Effects of a digital-based high-intensity interval training (HIIT) intervention in individuals with axial spondyloarthritis: – a randomized controlled pilot study (RCT). In: : . Paper presented at Reumadagarna 14-16 september 2023.
Open this publication in new window or tab >>Effects of a digital-based high-intensity interval training (HIIT) intervention in individuals with axial spondyloarthritis: – a randomized controlled pilot study (RCT)
Show others...
2023 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Background

Physical exercise is an important treatment for individuals with axial spondyloarthritis (axSpA). Although high-intensity training (HIT) has been shown to reduce disease symptoms and risk of comorbidity without exacerbating disease activity (1), compliance tends to decrease over time. Increased knowledge is needed on how to optimize and tailor individual exercise programs for continued regular exercising and improved health.

Objective

To study the effects of HIT on aerobic capacity, body composition, disease activity, physical function, health status and fatigue in individuals with axSpA after a 12-week intervention supported by digital coaching.

Methods

Twenty-two individuals (women, n=12), recruited from two rheumatology clinics in southern Sweden, were randomized to a HIT intervention group (HG; n=11) or a control group (CG; n=11). The HG completed three HIT sessions/week, including two interval training sessions (4x4 min), in self-selected activities for 12 weeks. The individuals in the HG were individually coached and had regular support from a physical therapist primarily by digital coaching. The CG continued exercising as usual. Assessment of aerobic capacity (VO2max), body composition (BMI and visceral fat area [cm2]), disease activity (CRP [µg/ml], BASDAI, 0-10 best-worst), physical function (BASFI, 0-10 best-worst), health status (EQ5D, 0-1 worst-best, ASAS health index [ASAS-HI], 0-17 best-worst), and fatigue (fatigue severity scale [FFS], 0-7 best-worst) were sampled at baseline and after 12 weeks. Mean and standard deviation (SD) were used for descriptive statistics. Repeated measures analysis of variance (ANOVA) was used to investigate effect of group (HG*CG) and time (PRE*POST), with a post-hoc analysis using t-tests when ANOVA indicated a significant difference in main effects or interactions. A significance level of p≤0.05 was used. Fisher´s exact test was used to study the effects over time for CRP (as dichotomized variable, > or < 4 µg/ml).

Results

Results presented are part of an ongoing RCT based on 19 individuals (women n=11) that have completed the 12-week follow-up analyses. The participants mean (SD) age was 48 (10) years, BMI 25 (4), VO2max 37 (6) mlO2/kg/min, and BASDAI 2.6 (0.3). No differences were present between the HG (n=9) and the CG group (n=10) at baseline for the studied variables. After 12 weeks of HIT an ANOVA interaction (p<0.05 showed that HG increased their VO2max (6.4 [3.6] mlO2/kg/min; p<0.001) but CG did not. For BMI, visceral fat area, disease activity (BASDAI), physical function (BASFI), fatigue (FFS) no differences in main effects or interactions were found (p>0.05). Health status (EQ5D) showed an ANOVA time main effect (p=0.007) where the HG increased their health status (0.10 [0.06] units; p=0.02) after 12-weeks, but CG did not. For health status measured with ASAS-HI no differences between groups were found. For dichotomized CRP-values no differences were found in either of the group’s pre-post. 

Conclusions

This pilot RCT shows that after 12 weeks of digital-based HIT intervention, the HG increased their aerobic capacity and EQ5D health status compared to CG, while body composition, disease activity, physical function, and fatigue did not show any significant differences between the groups. 

References

(1)    Sveaas SH, Bilberg a, Berg IJ, Provan SA, Rollefstad S, Semb AG, et al. high intensity exercise for 3 months reduces disease activity in axial spondyloarthritis (axSpA): a multicentre randomised trial of 100 patients. Br J Sports med. 2019

Acknowledgement

Thanks to participating patients, to patient partner Åsa Fiskaare and for contributions from the Swedish Rheumatism Association, Stig Thunes Foundation and Norrbacka Eugenia Foundation, Sweden

National Category
Medical and Health Sciences
Research subject
Health Innovation, M4HP
Identifiers
urn:nbn:se:hh:diva-52586 (URN)
Conference
Reumadagarna 14-16 september 2023
Available from: 2024-02-08 Created: 2024-02-08 Last updated: 2024-02-08
Torell, A., Olsson, M. C., Andersson, Å., Malm, K., Åberg, I., Wiking, E. & Haglund, E. (2023). Effects of a digital-based high-intensity training intervention in individuals with axial spondyloarthritis – a randomized controlled pilot study (RCT). Paper presented at EULAR 2023 European Congress of Rheumatology, Milan, Italy, 31 May - 3 June, 2023. Annals of the Rheumatic Diseases, 82(Suppl 1), 1049-1049
Open this publication in new window or tab >>Effects of a digital-based high-intensity training intervention in individuals with axial spondyloarthritis – a randomized controlled pilot study (RCT)
Show others...
2023 (English)In: Annals of the Rheumatic Diseases, ISSN 0003-4967, Vol. 82, no Suppl 1, p. 1049-1049Article in journal, Meeting abstract (Refereed) Published
Place, publisher, year, edition, pages
London: BMJ Publishing Group Ltd, 2023
National Category
Rheumatology and Autoimmunity
Research subject
Health Innovation, M4HP - Movement for health and performance; Health Innovation
Identifiers
urn:nbn:se:hh:diva-51823 (URN)10.1136/annrheumdis-2023-eular.3460 (DOI)
Conference
EULAR 2023 European Congress of Rheumatology, Milan, Italy, 31 May - 3 June, 2023
Funder
Swedish Rheumatism AssociationNorrbacka-Eugenia Foundation
Available from: 2023-10-13 Created: 2023-10-13 Last updated: 2023-10-24Bibliographically approved
Larsson, J., Dencker, M., Bremander, A. & Olsson, M. C. (2022). Cardiorespiratory responses of load carriage in female and male soldiers. Applied Ergonomics, 101, Article ID 103710.
Open this publication in new window or tab >>Cardiorespiratory responses of load carriage in female and male soldiers
2022 (English)In: Applied Ergonomics, ISSN 0003-6870, E-ISSN 1872-9126, Vol. 101, article id 103710Article in journal (Refereed) Published
Abstract [en]

Purpose

To investigate the effect of sex and load carriage on cardiorespiratory responses to high intensity exercise in male and female soldiers.

Methods

Soldiers (9 women, 9 men) performed a graded treadmill test until exhaustion with no load (NL) and combat-gear with body armor (CG). Cohen's d effect sizes, paired t-tests and ANOVA were used to study differences between conditions. A mixed linear regression model analyzed the relationship between heart rate (HR) and oxygen uptake (V̇O2) with load and between sexes.

Results

Wearing CG resulted in, for both sexes, a decreased time to exhaustion (−11 min), lower V̇O2peak (L/min) ES = 0.56; VO2peak (mL//kg/min) ES = 2.44, both p < 0.001, a net decrease in minute ventilation (ES = 3.53) and no change in HRmax. No sex-difference were present except for absolute V̇O2peak. The VO2 and HR relationship showed a cardiorespiratory reduction wearing CG vs. NL. Added load was equal between sexes, although female soldiers' CG relative to body mass was higher (25%) than male soldiers’ (20%), p < 0.01.

Conclusion

Wearing CG reduces soldiers’ cardiorespiratory capacity and exercise performance level, although the reduction cannot be explained solely based on the added load of CG, instead CG seems to restrict the capacity to fully ventilate. No sex differences were found in relative cardiorespiratory responses to wearing CG compared to NL.

Place, publisher, year, edition, pages
Oxford: Elsevier, 2022
Keywords
Aerobic capacity, Ventilation, VO2peak, Graded exercise test
National Category
Medical and Health Sciences Sport and Fitness Sciences
Identifiers
urn:nbn:se:hh:diva-46417 (URN)10.1016/j.apergo.2022.103710 (DOI)000799850300012 ()35217405 (PubMedID)2-s2.0-85124976436 (Scopus ID)
Funder
Swedish Armed Forces
Note

Funding: Halmstad University and Swedish Armed Forces

Available from: 2022-02-27 Created: 2022-02-27 Last updated: 2023-08-21Bibliographically approved
Parker, J., Hellström, J. & Olsson, M. C. (2022). Differences in kinematics and driver performance in elite female and male golfers. Sports Biomechanics, 21(6), 731-747
Open this publication in new window or tab >>Differences in kinematics and driver performance in elite female and male golfers
2022 (English)In: Sports Biomechanics, ISSN 1476-3141, E-ISSN 1752-6116, Vol. 21, no 6, p. 731-747Article in journal (Refereed) Published
Abstract [en]

The aim of this study was to compare swing kinematic differences between women and men and investigate which variables predict clubhead speed (CHS) and carry distance (CD) whilst accounting for individual variation. Methods: Swing kinematics and driver performance data were collected on 20 (10 women) elite golfers (HCP 0.7 ± 1.4). We used Bayesian T-test for between sex comparison of swing kinematics and Bayesian Analysis of covariance (ANCOVA) to produce general linear models for CHS and carry distance for elite female and male golfers separately. Results: There was strong evidence that the driver performance variables CHS and CD were decreased in women compared to men, and two kinematic variables; time to arm peak speed downswing and angular wrist peak speed were slower in women. The ANCOVAs identified very strong to overwhelming evidence that participant as a fixed factor was a determinant of CHS for both women and men but was not a determinant of CD. Conclusion: when looking to enhance driver performance among high-level golfers, coaches should be aware that variables that determine CHS and CD differ among women and men and if the aim is to improve CHS coaches should not forget the importance of individual swing characteristics. © 2019 Parker, Hellström & Olsson. Published by Informa UK Limited, trading as Taylor & Francis Group.

Place, publisher, year, edition, pages
Abingdon: Routledge, 2022
Keywords
Bayesian inference, clubhead speed, carry distance, golf performance, sex differences
National Category
Sport and Fitness Sciences
Identifiers
urn:nbn:se:hh:diva-41081 (URN)10.1080/14763141.2019.1683221 (DOI)000496368700001 ()31724482 (PubMedID)2-s2.0-85075147208 (Scopus ID)
Funder
Knowledge Foundation, 2012/0319
Available from: 2019-12-03 Created: 2019-12-03 Last updated: 2022-08-23Bibliographically approved
Malmborg, J. S., Bremander, A., Bergman, S., Haglund, E. & Olsson, M. C. (2022). Musculoskeletal pain and its association with health status, maturity, and sports performance in adolescent sport school students: a 2-year follow-up. BMC Sports Science, Medicine and Rehabilitation, 14(1), Article ID 43.
Open this publication in new window or tab >>Musculoskeletal pain and its association with health status, maturity, and sports performance in adolescent sport school students: a 2-year follow-up
Show others...
2022 (English)In: BMC Sports Science, Medicine and Rehabilitation, E-ISSN 2052-1847 , Vol. 14, no 1, article id 43Article in journal (Refereed) Published
Abstract [en]

Background: Musculoskeletal pain and its risk factors are rarely assessed in studies on adolescent athletes. The aim was to identify risk factors at baseline that were associated with the persistence or development of musculoskeletal pain at a two-year follow-up in adolescent sport school students, and to study cross-sectional associations at follow-up between musculoskeletal pain and sports performance.

Methods: Sport school students (79 boys and 52 girls, aged 14 years at baseline) were divided into infrequent (never–monthly) or frequent (weekly–almost daily) pain groups, based on frequency of pain using a pain mannequin. Logistic regression analyses were performed to study longitudinal associations between frequent pain at follow-up and baseline variables: pain group, number of regions with frequent pain, health status by EQ-5D, maturity offset (pre, average, or post peak height velocity), and sports (contact or non-contact). Linear regression analyses were used to study cross-sectional associations between pain groups and 20-m sprint, agility T-test, counter-movement jump, and grip strength at follow-up. Results were stratified by sex.

Results: A higher percentage of girls than boys reported frequent pain at follow-up (62% vs. 37%; p = 0.005). In boys, frequent pain at follow-up was associated with being pre peak height velocity at baseline (OR 3.884, CI 1.146–13.171; p = 0.029) and participating in non-contact sports (OR 3.429, CI 1.001–11.748; p = 0.050). In girls, frequent pain at follow-up was associated with having frequent pain in two or more body regions at baseline (OR 3.600, CI 1.033–12.542; p = 0.044), having a worse health status at baseline (OR 3.571, CI 1.026–12.434; p = 0.045), and participating in non-contact sports (OR 8.282, CI 2.011–34.116; p = 0.003). In boys, frequent pain was associated with worse performances in 20-m sprint and counter-movement jump, but not in agility T-test and grip strength.

Conclusions: Baseline risk factors for having frequent pain at follow-up were late maturation in boys, frequent pain and worse health status in girls, and participation in non-contact sports in both sexes. Boys with pain performed worse in sports tests. Coaches and school health-care services should pay attention to the risk factors and work towards preventing pain from becoming persistent. © 2022, The Author(s).

Place, publisher, year, edition, pages
London: BioMed Central (BMC), 2022
Keywords
Epidemiology, Exercise physiology, Health status, Maturity, Sports performance
National Category
Public Health, Global Health, Social Medicine and Epidemiology Other Health Sciences
Identifiers
urn:nbn:se:hh:diva-43031 (URN)10.1186/s13102-022-00437-x (DOI)000771455100001 ()35313966 (PubMedID)2-s2.0-85126734264 (Scopus ID)
Funder
Region Halland, HALLAND-639101Region Halland, HALLAND-469111Halmstad University
Note

Funding: Open access funding provided by Halmstad University. The study was supported financially by Halmstad University; Spenshult Research and Development Center, Halmstad; Region Halland (Grant Numbers HALLAND-469111, HALLAND-639101, and HALLAND-749041); and the Mayflower Charity Foundation, Sweden. The sources of funding had no involvement in the study design, data collection, analysis of data, interpretation of data, writing of the manuscript, or submission for publication.

Available from: 2020-09-02 Created: 2020-09-02 Last updated: 2023-01-02Bibliographically approved
Larsson, J., Olsson, M. C., Bremander, A. & Dencker, M. (2022). Physiological Demands and Characteristics of Movement During Simulated Combat. Military medicine, 188(11-12), 3496-3505
Open this publication in new window or tab >>Physiological Demands and Characteristics of Movement During Simulated Combat
2022 (English)In: Military medicine, ISSN 0026-4075, E-ISSN 1930-613X, Vol. 188, no 11-12, p. 3496-3505Article in journal (Refereed) Published
Abstract [en]

INTRODUCTION: Military tasks place considerable physiological demands on the soldier. It is therefore important to know the energy expenditure of soldiers while solving tasks in different environments. The purpose of this study was to describe the cardiorespiratory demands of certain movements and activities on ground combat soldiers during military field operations using body sensors and simulated combat.

MATERIALS AND METHODS: Movement characteristics and cardiorespiratory responses were assessed in 42 soldiers (three women) in the Swedish Army. The different posts assessed were commander, combat engineer, driver, and gunner. The military field exercises examined were urban operations and retrograde operations in rough terrain. Measurements included (1) body mass, (2) heart rate (HR) including maximal (HRmax), (3) velocity, (4) accelerations/decelerations, and (5) distance moved. Maximal aerobic capacity (V̇O2peak, mL·kg-1·min-1) was tested in a laboratory setting when wearing combat gear and body armor.

RESULTS: There was a weak positive correlation (r = 0.41 and 0.28, both P < .05) between VO2peak and percentage of time over 40% and 50% of maximal aerobic capacity during simulated combat. No differences were found for the different posts in time spent over 40% or 50% of maximal aerobic capacity and 76% of their HRmax (P > .05). Wearing combat gear and additional load while solving tasks resulted in mean HR varying between 98 and 111 beats·min-1, corresponding with 50-57% of the soldiers HRmax. Studying all exercises, mean HR was 105 ± 11 beats min-1, 54 ± 5% of HRmax corresponding to light work intensity. Soldiers performed between 2.8 and 4.9 accelerations/min in the different exercises. A significant correlation between V̇O2peak (mL kg-1 min-1) and acceleration and m/min were found, implying that soldiers with good aerobic capacity were able to cope better with tasks requiring quick movements.

CONCLUSION: Conducting military operations in urban terrain and retrograde operations in rough terrain strains ground combat soldiers' cardiorespiratory system, with work intensities close to 40% of maximal aerobic capacity in 15-33% of mission time. Tasks with external load carriage include change of direction, accelerations, bounds, and jumping over obstacles, and physical fitness tests should replicate this. Findings in this study also add objective data to the physiological demands of work performed by combat soldiers while conducting urban operations and retrograde operations in rough terrain. These findings could be used to develop a model for classifying work demands for ground combat forces. © The Association of Military Surgeons of the United States 2022.

Place, publisher, year, edition, pages
New York, NY: Oxford University Press, 2022
Keywords
Energy Metabolism, Exercise, Exercise Therapy, Female, Humans, Military Personnel, Physical Fitness
National Category
Physiology
Identifiers
urn:nbn:se:hh:diva-47133 (URN)10.1093/milmed/usac163 (DOI)000808051300001 ()35678321 (PubMedID)2-s2.0-85176508758& (Scopus ID)
Funder
Swedish Armed Forces
Note

Funding: Halmstad University and Swedish Armed Forces

Available from: 2022-06-16 Created: 2022-06-16 Last updated: 2023-11-28Bibliographically approved
Andersson, Å., Haglund, E., Berthold, E., Mogard, E., Torell, A. & Olsson, M. C. (2022). Serum Protein Response To A Single High-Intensity Interval Training Bout – Comparison Between Individuals With Spondyloarthritis And Healthy Controls. Paper presented at EULAR 2022, Copenhagen, Denmark, 1-4 June, 2022. Annals of the Rheumatic Diseases, 81(Suppl 1), 780-781
Open this publication in new window or tab >>Serum Protein Response To A Single High-Intensity Interval Training Bout – Comparison Between Individuals With Spondyloarthritis And Healthy Controls
Show others...
2022 (English)In: Annals of the Rheumatic Diseases, ISSN 0003-4967, E-ISSN 1468-2060, Vol. 81, no Suppl 1, p. 780-781Article in journal, Meeting abstract (Refereed) Published
Place, publisher, year, edition, pages
London: BMJ Publishing Group Ltd, 2022
National Category
Rheumatology and Autoimmunity
Identifiers
urn:nbn:se:hh:diva-47543 (URN)10.1136/annrheumdis-2022-eular.4984 (DOI)000850279003083 ()
Conference
EULAR 2022, Copenhagen, Denmark, 1-4 June, 2022
Available from: 2022-07-04 Created: 2022-07-04 Last updated: 2023-08-21Bibliographically approved
Malmborg, J., Bremander, A., Bergman, S., Haglund, E. & Olsson, M. C. (2021). Musculoskeletal pain in adolescent sportschool students – a two-year follow-up. In: : . Paper presented at Fysioterapi 2021, digital konferens, 19-20 oktober, 2021.
Open this publication in new window or tab >>Musculoskeletal pain in adolescent sportschool students – a two-year follow-up
Show others...
2021 (English)Conference paper, Poster (with or without abstract) (Refereed)
Keywords
Pain and pain rehabilitation, Children and adolescents, Physical activity, Sustainable health, Exercise medicine
National Category
Public Health, Global Health, Social Medicine and Epidemiology
Identifiers
urn:nbn:se:hh:diva-46969 (URN)
Conference
Fysioterapi 2021, digital konferens, 19-20 oktober, 2021
Available from: 2022-06-09 Created: 2022-06-09 Last updated: 2022-06-10Bibliographically approved
Larsson, J., Olsson, M. C., Bremander, A. & Larsson, I. (2021). Swedish soccer coaches' experiences and application of physical training in male elite soccer: A qualitative content analysis study. Scandinavian Sport Studies Forum, 12, 159-181
Open this publication in new window or tab >>Swedish soccer coaches' experiences and application of physical training in male elite soccer: A qualitative content analysis study
2021 (English)In: Scandinavian Sport Studies Forum, E-ISSN 2000-088X, Vol. 12, p. 159-181Article in journal (Refereed) Published
Abstract [en]

In elite soccer, training becomes more systematic and soccer clubs try to optimise their physiological training programs. Previous research has investigated many aspects of soccer, but research into the coaches’ own experiences and continuous improvement of physical training is lacking. The aim of this study was to describe the coaches’ experiences and their application of physical training in male elite soccer. The design of the study was explorative and based on a qualitative content analysis with an abductive approach based on a custom version of the four-step quality model—the plan-do-check-act (PDCA) cycle. Fifteen elite soccer coaches in Sweden were interviewed. The result showed that physical training in male elite soccer is an ongoing continuously improvement process that contains four different categories: 1) planning, containing gained experiences, teamwork, and lack of resources; 2) executing with different training methods, weekly rotation, and individual training; 3) evaluating containing monitor training load and physiological testing, and 4) improving with search for knowledge and long-term development. The coaches try to absorb new knowledge and continuously improve their training methods, although lack of resources sometimes does not allow them to introduce new training methods.

Place, publisher, year, edition, pages
Malmö: Malmö University, 2021
Keywords
coaches, elite soccer, experience, physical training, qualitative study, evaluation, ongoing process, continuous improvement
National Category
Sport and Fitness Sciences
Identifiers
urn:nbn:se:hh:diva-46143 (URN)
Available from: 2021-12-21 Created: 2021-12-21 Last updated: 2023-06-19Bibliographically approved
Larsson, J., Dencker, M., Bremander, A. & Olsson, M. C. (2020). Cardiovascular responses of load carriage in female and male soldiers. In: 5th International Congress on Soldiers Physical Performance: Book of Abstracts. Paper presented at 5th International Congress on Soldiers physical performance (ICSPP 2020), Quebec City, Canada, February 11-14, 2020 (pp. 260-260).
Open this publication in new window or tab >>Cardiovascular responses of load carriage in female and male soldiers
2020 (English)In: 5th International Congress on Soldiers Physical Performance: Book of Abstracts, 2020, p. 260-260Conference paper, Oral presentation with published abstract (Refereed)
National Category
Sport and Fitness Sciences
Identifiers
urn:nbn:se:hh:diva-41872 (URN)
Conference
5th International Congress on Soldiers physical performance (ICSPP 2020), Quebec City, Canada, February 11-14, 2020
Available from: 2020-04-09 Created: 2020-04-09 Last updated: 2020-11-12Bibliographically approved
Organisations
Identifiers
ORCID iD: ORCID iD iconorcid.org/0000-0002-9337-5113

Search in DiVA

Show all publications