Per Stål

Research qualifications: Docent

Educational qualifications: Recognised university teacher

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Works at

Affiliated as professor emeritus at Department of Medical and Translational Biology Section: Group Per Stål, Teachers A-wing

hus H, Johan Bures väg 12, Biologihuset Umeå universitet, 901 87 Umeå

Non-linear periodized resistance training in COPD: an international multicentre RCT

European Respiratory Journal, Vol. 64, (suppl 68)

Frykholm, Erik; Klijn, Peter; Vestman, Jonas; et al.

Effects and mechanisms of supramaximal high-intensity interval training on extrapulmonary manifestations in people with and without chronic obstructive pulmonary disease (COPD-HIIT): study protocol for a multi-centre, randomized controlled trial

Trials, BioMed Central (BMC) 2024, Vol. 25, (1)

Jakobsson, Johan; Burtin, Chris; Hedlund, Mattias; et al.

Desmin gene expression is not ubiquitous in all upper airway myofibers and the pattern differs between healthy and sleep apnea subjects

European Journal of Medical Research, BioMed Central (BMC) 2024, Vol. 29, (1)

Stål, Per; Nord, Hanna; von Hofsten, Jonas; et al.

Daily vocal exercise is necessary for peak performance singing in a songbird

Nature Communications, Springer Nature 2023, Vol. 14, (1)

Adam, Iris; Riebel, Katharina; Stål, Per; et al.

Unique fiber phenotype composition and metabolic properties of the stapedius and tensor tympani muscles in the human middle ear

Journal of Anatomy, John Wiley & Sons 2023, Vol. 243, (1) : 39-50

Rönnblom, Anton; Thornell, Lars-Eric; Shah, Farhan; et al.

Skeletal muscle morphology, satellite cells, and oxidative profile in relation to physical function and lifelong endurance training in very old men

Journal of applied physiology, American Physiological Society 2023, Vol. 134, (2) : 264-275

Skoglund, Elisabeth; Stål, Per; Lundberg, Tommy R.; et al.

Myopathy of the upper airway in snoring and obstructive sleep apnea

Laryngoscope Investigative Otolaryngology (LIO), John Wiley & Sons 2022, Vol. 7, (2) : 636-645

Shah, Farhan; Stål, Per

Effects of low-load/high-repetition resistance training on exercise capacity, health status and limb muscle adaptation in patients with severe COPD: a randomized controlled trial

Chest, Elsevier 2021, Vol. 159, (5) : 1821-1832

Nyberg, Andre; Martin, Mickael; Saey, Didier; et al.

Forces Required for Isolated Malleus Shaft Fractures

Otology and Neurotology, Wolters Kluwer 2021, Vol. 42, (10) : 1515-1520

Rönnblom, Anton; Niklasson, Anders; Werner, Mimmi; et al.

Reduced mitochondrial DNA and OXPHOS protein content in skeletal muscle of children with cerebral palsy

Developmental Medicine & Child Neurology, John Wiley & Sons 2021, Vol. 63, (10) : 1204-1212

von Walden, Ferdinand; Vechetti, Ivan J., Jr.; Englund, Davis; et al.

Epigenetic Marks at the Ribosomal DNA Promoter in Skeletal Muscle Are Negatively Associated With Degree of Impairment in Cerebral Palsy

Frontiers in Pediatrics , Frontiers Media S.A. 2020, Vol. 8

von Walden, Ferdinand; Fernandez-Gonzalo, Rodrigo; Pingel, Jessica; et al.

Effect and feasibility of non-linear periodized resistance training in people with COPD: study protocol for a randomized controlled trial

Trials, BioMed Central (BMC) 2019, Vol. 20, (1)

Frykholm, Erik; Klijn, Peter; Saey, Didier; et al.

Neurotrophic factor BDNF is upregulated in soft palate muscles of snorers and sleep apnea patients

Laryngoscope Investigative Otolaryngology (LIO), Wiley Periodicals, Inc. 2019, Vol. 4, (1) : 174-180

Shah, Farhan; Forsgren, Sture; Holmlund, Thorbjörn; et al.

Desmin and dystrophin abnormalities in upper airway muscles of snorers and patients with sleep apnea

Respiratory Research, BioMed Central 2019, Vol. 20

Shah, Farhan; Franklin, Karl A; Holmlund, Thorbjörn; et al.

Tooth extraction and subsequent dental implant placement in Sprague-Dawley rats induce differential changes in anterior digastric myofibre size and myosin heavy chain isoform expression

Archives of Oral Biology, Elsevier 2019, Vol. 99 : 141-149

Shah, Farhan; Stål, Per; Li, Jian; et al.

De novo dNTP production is essential for normal postnatal murine heart development

Journal of Biological Chemistry, American Society for Biochemistry and Molecular Biology 2019, Vol. 394, (44) : 15889-15897

Tran, Phong; Wanrooij, Paulina H.; Lorenzon, Paolo; et al.

Muscle changes in patients with diabetes and chronic exertional compartment syndrome before and after treatment with fasciotomy

Muscle and Nerve, John Wiley & Sons 2018, Vol. 57, (2) : 229-239

Edmundsson, David S.; Toolanen, Göran L.; Stål, Per S.

Axon and Schwann Cell Degeneration in Nerves of Upper Airway Relates to Pharyngeal Dysfunction in Snorers and Patients With Sleep Apnea

Chest, Elsevier 2018, Vol. 154, (5) : 1091-1098

Shah, Farhan; Holmlund, Thorbjörn; Levring Jäghagen, Eva; et al.

Muscle contractures in patients with cerebral palsy and acquired brain injury are associated with extracellular matrix expansion, pro-inflammatory gene expression, and reduced rRNA synthesis

Muscle and Nerve, Wiley-Blackwell 2018, Vol. 58, (2) : 277-285

Von Walden, Ferdinand; Gantelius, Stefan; Liu, Chang; et al.

Bilateral muscle fiber and nerve influences by TNF-alpha in response to unilateral muscle overuse: studies on TNF receptor expressions

BMC Musculoskeletal Disorders, Vol. 18, (1)

Renström, Lina; Stål, Per; Song, Yafeng; et al.

Unique expression of cytoskeletal proteins in human soft palate muscles

Journal of Anatomy, Wiley-Blackwell 2016, Vol. 228, (3) : 487-494

Shah, Farhan; Berggren, Diana; Holmlund, Thorbjörn; et al.

Collagen content in the vastus lateralis and the soleus muscle following a 90-day bed rest period with or without resistance exercises

MLTJ - Muscles Ligaments and Tendons Journal, Vol. 5, (4) : 305-309

Nielsen, Rasmus Oestergaard; Schjerling, Peter; Tesch, Per; et al.

Fibre typing of intrafusal fibres

Journal of Anatomy, John Wiley & Sons 2015, Vol. 227, (2) : 136-156

Thornell, Lars-Eric; Carlsson, Lena; Eriksson, Per-Olof; et al.

Unilateral muscle overuse causes bilateral changes in muscle fiber composition and vascular supply

PLOS ONE, Vol. 9, (12) : e116455-

Song, Yafeng; Forsgren, Sture; Liu, Jing-Xia; et al.

Inhibitors of endopeptidase and angiotensin-converting enzyme lead to an amplification of the morphological changes and an upregulation of the substance P system in a muscle overuse model

BMC Musculoskeletal Disorders, BioMed Central 2014, Vol. 15 : 126-

Song, Yafeng; Stål, Per S; Yu, Ji-Guo; et al.

Effects of long term supplementation of anabolic androgen steroids on human skeletal muscle

PLOS ONE, Public Library Science 2014, Vol. 9, (9)

Yu, Ji-Guo; Bonnerud, Patrik; Eriksson, Anders; et al.

TNF-alpha in an Overuse Muscle Model - Relationship to Muscle Fiber Necrosis/Regeneration, the NK-1 Receptor and an Occurrence of Bilateral Involvement

Journal of Clinical & Cellular Immunology, Vol. 4, (2)

Renström, Lina; Song, Yafeng; Stål, Per; et al.

Marked effects of tachykinin in myositis both in the experimental side and contralaterally: studies on NK-1 receptor expressions in an animal model

ISRN Inflammation, Vol. 2013, (907821)

Song, Yafeng; Stål, Per; Yu, Jiguo; et al.

Bilateral increase in expression and concentration of tachykinin in a unilateral rabbit muscle overuse model that leads to myositis

BMC Musculoskeletal Disorders, BioMed Central 2013, Vol. 14

Song, Yafeng; Stål, Per; Yu, Jiguo; et al.

Re-evaluation of sarcolemma injury and muscle swelling in human skeletal muscles after eccentric exercise

PLOS ONE, Vol. 8, (4)

Yu, Ji-Guo; Liu, Jing-Xia; Carlsson, Lena; et al.

Effects on contralateral muscles after unilateral electrical muscle stimulation and exercise

PLOS ONE, Public Library Science 2012, Vol. 7, (12) : e52230-

Song, Yafeng; Forsgren, Sture; Yu, Jiguo; et al.

Abnormal Mitochondria Organization and Oxidative Activity in the Palate Muscles of Long-Term Snorers with Obstructive Sleep Apnea

Respiration, S. Karger 2012, Vol. 83, (5) : 407-417

Stål, Per S; Johansson, Bengt

Stiffness and thickness of Fascia do not explain chronic exertional compartment syndrome

Clinical Orthopaedics and Related Research, Vol. 469, (12) : 3495-3500

Dahl, Morten; Hansen, Philip; Stål, Per; et al.

Human extraocular muscles in ALS

Investigative Ophthalmology and Visual Science, Association for Research in Vision and Ophthalmology (ARVO) 2010, Vol. 51, (7) : 3494-3501

Ahmadi, Mahboobah; Liu, Jing-Xia; Brännström, Thomas; et al.

Evidence for low muscle capillary supply as a pathogenic factor in chronic compartment syndrome

Scandinavian Journal of Medicine and Science in Sports, Copenhagen: Munksgaard 2010, Vol. 20, (6) : 805-813

Edmundsson, David; Toolanen, Göran; Thornell, Lars-Eric; et al.

Capillary supply in relation to myosin heavy chain fibre composition of human intrinsic tongue muscles

Cells Tissues Organs, Vol. 192, (5) : 303-313

Granberg, I; Lindell, Björn; Eriksson, Per-Olof; et al.

Capillary supply of the soft palate muscles is reduced in long-term habitual snorers

Respiration, Vol. 77, (3) : 303-310

Stål, Per; Lindman, Rolf; Johansson, Bengt

Myocardial capillary supply is limited in hypertrophic cardiomyopathy: a morphological analysis

International Journal of Cardiology, Vol. 126, (2) : 252-257

Johansson, Bengt; Mörner, Stellan; Waldenström, Anders; et al.

Decreased capillarization and a shift to fast myosin heavy chain IIx in the biceps brachii muscle from young adults with spastic paresis

Journal of the Neurological Sciences, Elsevier 2007, Vol. 253, (1-2) : 25-33

Pontén, Eva M.; Stål, Per S.

Uncoordinated expression of myosin heavy chains and myosin-binding protein C isoforms in human extraocular muscles

Investigative Ophthalmology and Visual Science, Association for Research in Vision and Ophthalmology 2006, Vol. 47, (10) : 4188-4193

Kjellgren, Daniel; Stål, Per; Larsson, Lars; et al.

Fibre composition of human intrinsic tongue muscles.

Cells Tissues Organs, Vol. 173, (3) : 147-161

Stål, Per; Marklund, Susanna; Thornell, Lars-Eric; et al.

Abnormal palatopharyngeal muscle morphology in sleep-disordered breathing

Journal of the Neurological Sciences, Elsevier 2002, Vol. 195, (1) : 11-23, Article Number: PII S0022-510X(01)00676-1

Lindman, Rolf; Stål, Per S

Human single masseter muscle fibers contain unique combinations of myosin and myosin binding protein C isoforms

Journal of Muscle Research and Cell Motility, Vol. 23, (4) : 317-326

Yu, F; Stål, Per; Thornell, Lars-Eric; et al.

Changes in a rat facial muscle after facial nerve injury and repair

Muscle and Nerve, John Wiley & Sons 2001, Vol. 24, (9) : 1202-1212

Jergović, D; Stål, Per; Lidman, D; et al.

Morphological characterization of the levator veli palatini muscle in children born with cleft palates

The Cleft Palate-Craniofacial Journal, Vol. 38, (5) : 438-448

Lindman, Rolf; Paulin, Gunnar; Stål, Per S

Characterisation of human soft palate muscles with respect to fibre types, myosins and capillary supply.

Journal of Anatomy, Vol. 197 ( Pt 2) : 275-90

Stål, Per; Lindman, R

Muscle changes in diabetics with chronic compartment syndrome

Edmundsson, David; Toolanen, Göran; Stål, Per

Jakobsson, Johan; Burtin, Chris; Hedlund, Mattias; et al.

Capillarization and myosin composition in spastic biceps brachii muscle

Pontén, Eva; Stål, Per

Upregulated expression of brain-derived neurotrophic factor in soft palate muscles of snorers and obstructive sleep apnea patients

Shah, Farhan; Forsgren, Sture; Holmlund, Thorbjörn; et al.

View publications in DiVA

Research groups

Head of research

Per Stål-research group

Group member

Umeå Translational Respiratory EXercise group (U-TREX)

Research projects

1 January 2016 until 1 January 2023

ENDURE/PREDQUAD

10 October 2013

Neuromuscular injuries in Obstructive Sleep Apnea

Published: 24 Jan, 2024

Daily vocal training necessary for mating males

Published: 23 Apr, 2019

Snoring causes injuries and prevention of healing in the upper airways