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  • 1.
    Aasa, Björn
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics. Norrlandsklinikens hälsocentral, Umeå, Sweden.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Individualized low-load motor control exercises and education versus a high-load lifting exercise and education to improve activity, pain intensity, and physical performance in patients with low back pain: a randomized controlled trial2015In: Journal of Orthopaedic and Sports Physical Therapy, ISSN 0190-6011, E-ISSN 1938-1344, Vol. 45, no 2, 77-85 p.Article in journal (Refereed)
    Abstract [en]

    Study Design Randomized controlled trial. Background Low back pain is a common disorder. Patients with low back pain frequently have aberrant and pain-provocative movement patterns that often are addressed with motor control exercises. Objective To compare the effects of low-load motor control (LMC) exercise and those of a high-load lifting (HLL) exercise. Methods Seventy participants with recurrent low back pain, who were diagnosed with nociceptive mechanical pain as their dominating pain pattern, were randomized to either LMC or HLL exercise treatments. Participants were offered 12 treatment sessions over an 8-week period. All participants were also provided with education regarding pain mechanisms. Methods Participants were assessed prior to and following treatment. The primary outcome measures were activity (the Patient-Specific Functional Scale) and average pain intensity over the last 7 days (visual analog scale). The secondary outcome measure was a physical performance test battery that included 1 strength, 3 endurance, and 7 movement control tests for the lumbopelvic region. Results Both interventions resulted in significant within-group improvements in pain intensity, strength, and endurance. The LMC group showed significantly greater improvement on the Patient-Specific Functional Scale (4.2 points) compared with the HLL group (2.5 points) (P<.001). There were no significant between-group differences in pain intensity (P = .505), strength, and 1 of the 3 endurance tests. However, the LMC group showed an increase (from 2.9 to 5.9) on the movement control test subscale, whereas the HLL group showed no change (from 3.9 to 3.1) (P<.001). Conclusion An LMC intervention may result in superior outcomes in activity, movement control, and muscle endurance compared to an HLL intervention, but not in pain intensity, strength, or endurance.

  • 2.
    Aasa, Björn
    et al.
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Hellqvist, Jonas
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    A characterisation of pain, disability, kinesiophobia and physical capacity in patients with predominantly peripherally mediated mechanical low back pain2011Conference paper (Refereed)
  • 3.
    Aasa, Ulrika
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Aasa, Björn
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Krafttag ska stoppa styrkelyftarnas skador2015Other (Other (popular science, discussion, etc.))
  • 4.
    Aasa, Ulrika
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Social Sciences, Umeå Sport Sciences Center.
    Svartholm, Ivar
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Andersson, Fredrik
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Social Sciences, Umeå Sport Sciences Center.
    Injuries among weightlifters and powerlifters: a systematic review2017In: British Journal of Sports Medicine, ISSN 0306-3674, E-ISSN 1473-0480, Vol. 51, no 4, 211-219 p.Article in journal (Refereed)
    Abstract [en]

    Background Olympic weightlifting and powerlifting are two sports that expose the body to great forces. Injury characteristics have not been systematically reviewed for these two growing sports.

    Objective The purpose of this study was to systematically review the literature regarding various definitions of injuries used, injury localisation, the prevalence and incidence of injuries and the associated risk factors for injuries in weightlifting and powerlifting.

    Design Systematic review.

    Data sources Five databases, PubMed, MEDLINE, SPORTDiscus, Scopus and Web of Science, were searched between 9 March and 6 April 2015.

    Eligibility criteria for selecting studies Studies assessing injury incidence and prevalence in Olympic weightlifting and powerlifting were included. The Quality assessment tool for observational cohort and cross-sectional studies was used to assess methodological quality.

    Results 9 studies were included in the review. Injury was defined fairly consistently across studies. Most studies were of low methodological quality. The spine, shoulder and the knee were the most common injury localisations in both sports. The injury incidence in weightlifting was 2.4–3.3 injuries/1000 hours of training and 1.0–4.4 injuries/1000 hours of training in powerlifting. Only one retrospective study had analysed possible risk factors.

    Summary/conclusions The risk of injury in both sports were similar to other non-contact sports also requiring strength/power, but low compared to contact sports. The severity of injuries differed in the included studies. Since little has been studied regarding possible risk factors to injuries, further research is therefore warranted to explain why athletes get injured and how to prevent injuries.

    Trial registration number PROSPERO CRD42015014805.

  • 5.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Deadlift training for patients with mechanical low back pain: a comparison of the effects of a high-load lifting exercise and individualized low-load motor control exercises2016Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Disability due to low back pain is common. While evidence exist that exercise is effective in reducing pain and disability, it is still largely undetermined which kind of exercises that are most effective. The overall aim of this thesis was to evaluate and compare the effects of a high-load lifting exercise and individualized low-load motor control exercises for patients with nociceptive mechanical low back pain. A secondary aim was to evaluate which patients benefit from training with a high-load lifting exercise.

    All four papers in this thesis were based on a randomized controlled trial including 70 participants with nociceptive mechanical low back pain as their dominating pain pattern. Participants were randomized into training with either a high-load lifting exercise (HLL), the deadlift, (n=35) or individualized low-load motor control exercises (LMC) (n=35). Both interventions included aspects of pain education. All participants were offered twelve sessions during an eight week period. The effects of the interventions were evaluated directly after and twelve months after the end of the intervention period. Outcome measures were pain intensity, activity, disability, physical performance, lumbo-pelvic alignment and lumbar multifidus muscle thickness.

    There was a significant between-group effect in favour of the LMC intervention regarding improvements in activity, movement control tests and some tests of trunk muscle endurance. For pain intensity there were no significant differences between groups. A majority of participants in both intervention groups showed clinically meaningful improvements from baseline to two and twelve month follow-up regarding pain intensity and activity. There were no significant differences between HLL and LMC regarding the effect on lumbo-pelvic alignment or lumbar multifidus thickness. The participants who benefit the most from the HLL intervention were those with a low pain intensity and high performance in the Biering-Sørensen test at baseline.

    The results of this thesis showed that the HLL intervention was not more effective than the LMC intervention. The LMC was in fact more effective in improving activity, performance in movement control tests and some tests of trunk muscle endurance, compared to the HLL intervention.

    The results imply that the deadlift, when combined with education, could be considered as an exercise to produce clinically relevant improvements on pain intensity in patients who prefer a high-load exercise. However, before considering deadlift training, the results suggest that pain intensity and performance in the Biering-Sørensen test should be evaluated.

  • 6.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Which patients with persistent mechanical low back pain will respond to highload motor control training?2010Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
    Abstract [en]

    Abstract

    Introduction

    A previous pilot study has shown that high load motor control training with the conventional deadlift exercise can reduce pain intensity and activity limitation in patients with persistent low back pain. However, it is still unknown which variables characterize the ideal patient for this exercise.

    Aim

    The aim of this study was to explore variables influencing success or failure of eight weeks of high loadmotor control training with the conventional deadlift exercise for patients with persistent mechanical low back pain.

    Method

    The study design was a prospective cohort study of patients with persistent mechanical low back pain(n=35). The intervention consisted of eight weeks of training with the conventional deadlift exercise. Possible predictive variables were collected at baseline. To discriminate patients with a successful or failed outcome of treatment, change in the patient-specific functional scale was used and a cut-off at 50 %improvement was set. Of the 35 patients, 15 were categorized as treatment success (≥50 % improvement) and 20 patients as treatment failure (<50 % improvement).

    Results

    No variables at baseline were recognized as possible predictors of successful or failed treatment.

    Conclusion

    From the results of this study it appears that none of the variables in this study could influence success or failure of high load motor control training with the conventional deadlift exercise. However, the conventional deadlift could be considered a potent exercise when administered by a PT well experienced in resistance training and analyzing movement patterns.

  • 7.
    Berglund, Lars
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Aasa, Björn
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi.
    Styrketräning som behandling vid långvariga ländryggsbesvär2017In: Fysioterapi, ISSN 1653-5804, no 4, 8 p.28-33 p.Article, review/survey (Other academic)
    Abstract [sv]

    Fysisk träning är viktigt för en god hälsa och fungerar även som behandlingsform vid många sjukdomar, så även ländryggsbesvär. Styrketräning har visat sig vara en mer effektiv träningsform än till exempel aerob träning vid behandling av långvariga ländryggsbesvär. I dagsläget finns det ingen konsensus kring vilket det mest effektiva styrketräningsupplägget kan vara. Den vanligaste designen av styrketräningsprogram vid ländryggsbesvär tycks vara ett upplägg med syftet att förbättra styrkan/uthålligheten av ryggsträckarmuskulaturen och därigenom uppnå smärtlindring och funktionsförbättring. I en studie från Umeå universitet och Luleå tekniska universitet har träning av marklyft för patienter med långvariga ländryggsbesvär utvärderats. Marklyftsträningen förväntades öka deltagarnas bålstyrka samtidigt som den fokuserade på förbättring av rörelsekontroll kring såväl höft som ländrygg. När den åtta veckor långa träningsperioden var slut, visade det sig att gruppen som tränat marklyft hade ökat sin bålstyrka, minskat smärta, ökat funktionsförmåga och hälsorelaterad livskvalitet i samma omfattning som gruppen som tränade individanpassad träning av rörelsekontroll. Men de hade inte förbättrats lika mycket gällande rörelsekontroll eller vardagsfunktion. Vidare forskning pågår vid Umeå universitet om skador i samband med tung styrketräning samt lyftteknikens betydelse för skador och besvär vid tung styrketräning.

  • 8.
    Berglund, Lars
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Aasa, Björn
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Hellqvist, Jonas
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi .
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Which patients with low back pain benefit from deadlift training?2015In: Journal of Strength and Conditioning Research, ISSN 1064-8011, E-ISSN 1533-4287, Vol. 29, no 7, 1803-1811 p.Article in journal (Refereed)
    Abstract [en]

    Recent studies have indicated that the deadlift exercise may be effective in decreasing pain intensity and increasing activity for most, but not all, patients with a dominating mechanical low back pain pattern. This study aimed to evaluate which individual factors measured at baseline could predict activity, disability, and pain intensity in patients with mechanical low back pain after an 8-week training period involving the deadlift as a rehabilitative exercise. Thirty-five participants performed deadlift training under the supervision of a physical therapist with powerlifting experience. Measures of pain-related fear of movement, hip and trunk muscle endurance and lumbopelvic movement control were collected at baseline. Measures of activity, disability and pain intensity were collected at baseline and at follow-up. Linear regression analyses were used to create models to predict activity, disability and pain intensity at follow-up. Results showed that participants with less disability, less pain intensity and higher performance on the Biering-Sørensen test, which tests the endurance of hip and back extensor muscles, at baseline benefit from deadlift training. The Biering-Sørensen test was the strongest predictor since it was included in all predictive models. Pain intensity was the next best predictor as it was included in two predictive models. Thus, for strength and conditioning professionals who use the deadlift as a rehabilitative exercise for individuals with mechanical low back pain, it is important to ensure that clients have sufficient back extensor strength and endurance and a sufficiently low pain intensity level to benefit from training involving the deadlift exercise.

  • 9.
    Berglund, Lars
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences.
    Aasa, Björn
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics. Norrlandskliniken Hlth Care Ctr, Umea, Sweden.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi .
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Sports medicine.
    Effects of Low-Load Motor Control Exercises and a High-Load Lifting Exercise on Lumbar Multifidus Thickness: A Randomized Controlled Trial2017In: Spine, ISSN 0362-2436, E-ISSN 1528-1159, Vol. 42, no 15, E876-E882 p.Article in journal (Refereed)
    Abstract [en]

    Study Design. Randomized controlled trial.Objective. The aim of this study was to compare the effects of low-load motor control (LMC) exercises and a high-load lifting (HLL) exercise, on lumbar multifidus (LM) thickness on either side of the spine and whether the effects were affected by pain intensity or change in pain intensity. Summary of Background Data. There is evidence that patients with low back pain (LBP) may have a decreased size of the LM muscles with an asymmetry between sides in the lower back. It has also been shown that LMC training can affect this asymmetry. It is, however, not known whether a high-load exercise has the same effect. Methods. Sixty-five participants diagnosed with nociceptive mechanical LBP were included and randomized into LMC exercises or a HLL exercise, the deadlift. The LM thickness was measured using rehabilitative ultrasound imaging (RUSI), at baseline and after a 2-month training period. Results. There were no differences between interventions regarding effect on LM muscle thickness. However, the analysis showed a significant effect for asymmetry. The thickness of the LM muscle on the small side increased significantly compared with the large side in both intervention groups, without influence of pain at baseline, or change in pain intensity.Conclusion. At baseline, there was a difference in thickness of the LM muscles between sides. It seems that exercises focusing on spinal alignment may increase the thickness of the LM muscles on the small side, irrespective of exercise load. The increase in LM thickness does not appear to be mediated by either current pain intensity or the magnitude of change in pain intensity.

  • 10.
    Berglund, Lars
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Aasa, Björn
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi .
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Sagittal lumbo-pelvic alignment in patients with low back pain and the effects of a high-load lifting exercise and individualized low-load motor control exercises - a randomized controlled trial.2017In: The spine journal, ISSN 1529-9430, E-ISSN 1878-1632Article in journal (Refereed)
    Abstract [en]

    Background Context

    Assessment of posture and lumbo-pelvic alignment is often a main focus in the classification and treatment of patients with low back pain. However, little is known regarding the effects of motor control interventions on objective measures of lumbo-pelvic alignment.

    Purpose

    The primary aim of this study was to describe the variation of sagittal lumbo-pelvic alignment in patients with nociceptive mechanical low back pain. The secondary aim was to compare the effects of a high-load lifting exercise (HLL) and low-load motor control exercises (LMC) on change in lumbo-pelvic alignment with a special emphasis on patients with high and low degrees of lumbar lordosis (lu) and sacral angle (sa).

    Study Design

    This study is a secondary analysis of a randomized controlled trial evaluating the effects of HLL and LMC. Patient Sample Patients from the primary study, i.e. patients categorized with nociceptive mechanical low back pain, who agreed to participate in the radiographic examination were included (n=66).

    Outcome measures

    Lateral plain radiographic images were used to evaluate lumbo-pelvic alignment regarding lumbar lordosis and sacral angle as outcomes with posterior bend as an explanatory variable.

    Methods

    The participants were recruited to the study from two occupational health care facilities. They were randomized to either the HLL or LMC intervention group and offered 12 supervised exercise sessions. Outcome measures were collected at baseline and at the end of intervention period 2 months after baseline. Between and within group analyses of intervention groups and sub-groups based on the distribution of the baseline values for lumbar lordosis and sacral angle respectively, (LOW, MID, HIGH), were performed using both parametric and non-parametric statistics. This study was supported by two grants from Visare Norr (12000 US dollars) and Norrbotten County Council (13000 US dollars). The supporting organizations were not involved in the collection of data, analysis, interpretation or drafting of the manuscript.

    Results

    The ranges of values for the present sample for lumbar lordosis were 26.9-91.6° (M=59.0°, SD=11.5°) and for sacral angle were 18.2-72.1° (M=42.0°, SD=9.6°). There were no significant differences between the intervention groups in the percent change of either outcome measure. Neither did any outcome change significantly over time within the intervention groups. In the sub-groups, based on the distribution of respective baseline values, LOWlu showed significantly increased lumbar lordosis, whereas HIGHsa, showed significantly decreased sacral angle following intervention.

    Conclusions

    This study describes the wide distribution of values for lumbo-pelvic alignment for patients with nociceptive mechanical low back pain. Further research is needed to investigate sub-groups of other types of low back pain and contrast findings to those presented in this study. Our results also suggest that re-training of lumbo-pelvic alignment could be possible for patients with low back pain.

  • 11.
    Berglund, Lars
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Aasa, Björn
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi .
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Sagittal lumbo-pelvic alignment in patients with low back pain and the effects of a high-load lifting exercise and individualized low-load motor control exercises – a randomized controlled trialManuscript (preprint) (Other academic)
    Abstract [en]

    Background Context

    Assessment of posture and alignment is often a main focus in the classification and treatment for patients with low back pain. However, there is much not known regarding the effects of motor control interventions on objective measures of lumbo-pelvic alignment.

    Purpose

    The primary aim of this study was to describe the variation of sagittal lumbo-pelvic alignment in patients with nociceptive mechanical low back pain. The secondary aim was to compare the effects of low-load motor control exercises and a high-load lifting exercise on change in alignment with a special emphasis on patients with high and low degrees of lumbar lordosis and sacral angle.

    Study Design

    This study is a secondary analysis of a randomized controlled trial evaluating the effects of a high-load lifting exercise (HLL) and low-load motor control training (LMC).

    Patient Sample

    Patients from the primary study, i.e. patients with a dominating pattern of nociceptive mechanical low back pain, who agreed to participate in the radiographic examination were included (n=66).

    Outcome measures

    Lateral plain radiographic images were used to evaluate lumbo-pelvic alignment regarding lumbar lordosis and sacral angle as outcomes and posterior bend as an explanatory variable.

    Methods

    The participants were recruited from two occupational health care facilities. They were randomized to LMC or HLL intervention group and offered 12 sessions of exercise with an instructor. Outcome measures were collected at baseline at the end of intervention period 2 months after baseline.

    Between and within group analyses of intervention groups and sub-groups based on the distribution of the baseline values for lumbar lordosis and sacral angle respectively, (LOW, MID, HIGH), were performed using both parametric and non-parametric tests.

    This study was supported by two grants from Visare Norr and Norrbotten County Council.

    Results

    The lumbar lordosis and sacral angle in the present sample had a wide distribution, while the mean values for lumbar lordosis was 59.0, SD 11.5 degrees and for sacral angle 42.0, SD 9.6 degrees. There were no difference between groups in the percent change in either outcome measure. Neither did any outcome change significantly over time within the intervention groups. In the sub-groups based on the distribution of baseline values for lumbar lordosis and sacral angle respectively, the sub-group LOWlu representing low baseline values of lumbar lordosis increased their lumbar lordosis significantly. The sub-group HIGHsa, representing high baseline values for sacral angle, decreased their sacral angle significantly following intervention.

    Conclusions

    This study is the first to describe the wide distribution of values for lumbo-pelvic alignment for patients with nociceptive mechanical low back pain. There is however further need to investigate other types of low back pain in order to contrast these findings to other sub-groups of low back pain. The results also suggest that re-training of lumbo-pelvic alignment could be possible for patients with low back pain.

  • 12.
    Berglund, Lars
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy. Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Aasa, Björn
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi .
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    The effects of low-load motor control exercises and a high-load lifting exercise on lumbar multifidus thickness – a randomized controlled trialManuscript (preprint) (Other academic)
    Abstract [en]

    Study Design

    Randomized controlled trial

    Objective

    The aim of this study was to compare the effects of low-load motor control exercises and a high-load lifting exercise on lumbar multifidus thickness among patients with nociceptive mechanical low back pain.

    Summary of Background Data

    There is evidence that patients with low back pain may have a decreased size of the lumbar multifidus muscles with an asymmetry between left/right sides in the lower back. It has also been shown that low-load motor control training can affect this asymmetry; essentially, it is effective in equalizing side differences in lumbar multifidus muscle size. It is, however, not known whether a high-load exercise has the same effect.

    Methods

    Sixty-five participants diagnosed with nociceptive mechanical low back pain were included and randomized into low-load motor control exercises or a high-load lifting exercise, the deadlift. The lumbar multifidus thickness at the fifth lumbar vertebra was measured, using rehabilitative ultrasound imaging, at baseline and after a 2-month training period.

    Results

    There were no differences between interventions regarding effect on lumbar multifidus muscle thickness. However, the linear mixed model analysis showed a significant effect for asymmetry. The thickness of the lumbar multifidus muscle on the small side increased significantly compared to the large side in both intervention groups.

    Conclusions

    There was a difference in thickness of the lumbar multifidus muscles between sides. It seems that exercises focusing on spinal alignment may increase the thickness of the lumbar multifidus muscles on the small side, irrespective of exercise load.

  • 13.
    Berglund, Lars
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Falk, Jimmy
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Eliasson, Kim
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    What is the best squat and deadlift technique?2015Conference paper (Refereed)
  • 14.
    Berglund, Lars
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Hellqvist, Jonas
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Aasa, Björn
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Holmberg, David
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi.
    Michaelson, Peter
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Which patients with persistent mechanical low back pain will respond to high load motor control training?2011Conference paper (Refereed)
  • 15.
    Olofsson, Patrik
    et al.
    Luleå Tekniska Universitet, Institutionen för hälsovetenskap, Avdelningen för hälsa och rehabilitering, Fysioterapi.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Clinical examination of physical problems in powerlifters: Development and applicability of a physical examination protocol2017Conference paper (Refereed)
  • 16.
    Sandlund, Jonas
    et al.
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Aasa, Björn
    Umeå University, Faculty of Medicine, Department of Surgical and Perioperative Sciences, Orthopaedics.
    Berglund, Lars
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Aasa, Ulrika
    Umeå University, Faculty of Medicine, Department of Community Medicine and Rehabilitation, Physiotherapy.
    Classification accuracy of motor control tests of the lumbar spine for subgroups of mechanical low back pain2012Conference paper (Refereed)
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