Niklas Lehto
Niklas Lehto

Niklas Lehto

Associate Professor
Luleå University of Technology
Applied Physics
Materials Science
Department of Engineering Sciences and Mathematics
+46 (0)920 492085
E101 Luleå



Fig5 final.jpg

Age effect on endurance

In this project I investigate the age-related changes in the endurance performance of athletes. In a first article,the results of all the Stockholm marathon in the years 1979 - 2014 were analyzed. The model shows that the average marathon runner's performance improved to 34.3 ± 2.6 years of age. After this age the performane drop. The deterioration accelerates with increasing age. Fortunately, other factors, such as exercise and lifestyle, also has a major impact on the runner's performance.


Dislocations in silicon

My thesis was about the dislocations in the semiconducting material silicon. I had a theoretical approach and carried out simulations using my own computer algorithms to determine the properties of the material.


Peripheral circulation

I'm the co-supervisor in a PhD project where we study the peripheral circulation in hands using infrared cameras. PhD student Katarina Leijon-Sundqvist. Professor Yelverton Tegner is the main supervisor.


Communication with the radiology department

I am co-supervisor in a PhD project where we study the communication between medical doctors and radiology department. So far, focus group interviews were conducted with medical interns and district doctors to study their experiences of writing referrals to the radiology department. PhD student Johan Kruse. Assistant Professor Åsa Engström is the main supervisor.


Teaching Experience

I have an extensive teaching experience both in terms of level and student groups. My teaching experience at the university is equivalent to nine years of full-time teaching. Beyond that, I have had managerial positions (as study director, education coordinators, and head of division) that closely linked to teaching. Teaching has mainly been on Master of Science in engineering educations (both basic and advanced levels), the teacher education and in the education for radiographers.

I am also involved as teachers in the higher education courses offered by the HPC.


Current teaching

Radiation science and radiological modalities

Diagnostic modalities

Radiography - leadership, organization and learning

Leadership within health care in change

Scientific specialization in radiography

Thesis, Radiography

Previous teaching

Pre-university level

Optics, Wave Physics, Mechanics, Atomic Physics

First cycle

Physics 1, Physics 2, Physics 3, Modern Physics, Thermal physics, Waves, Classical Mechanics, Experimental Methods, Analytical Mechanics, Quantum Mechanics, Electromagnetic Theory

Second cycle

Solid State Physics, Advanced Quantum Mechanics


Article in journal

Losing the identity of a hockey player (2020)

the long-term effects of concussions
Engström. Å, Jumisko. E, Shahim. P, Lehto. N, Blennow. K, Zetterberg. H, et al.
Concussion, Vol. 5, nr. 2
Article in journal

Methotrexate treatment in rheumatoid arthritis and elevated liver enzymes (2019)

A long‐term follow‐up of predictors, surveillance, and outcome in clinical practice
Sundbaum. J, Eriksson. N, Hallberg. P, Lehto. N, Wadelius. M, Baecklund. E
International Journal of Rheumatic Diseases, Vol. 22, nr. 7, s. 1226-1232
Article in journal

An Initial Study on the Coordination of Rod and Line Hauling Movements in Distance Fly Casting (2017)

Röijezon. U, Løvoll. G, Henriksson. A, Tonkonogi. M, Lehto. N
Annals of Applied Sport Science, Vol. 5, nr. 2, s. 61-72
Article in journal

Relation between dorsal and palmar hand skin temperatures during a cold stress test (2017)

Leijon-Sundqvist. K, Tegner. Y, Olsson. F, Karp. K, Lehto. N
Journal of Thermal Biology, Vol. 66, s. 87-92
Article in journal

Effects of age on marathon finishing time among male amateur runners in Stockholm marathon 1979-2014 (2016)

Lehto. N
Journal of Sport and Health Science, Vol. 5, nr. 3, s. 349-354
Article in journal

Hand skin temperature (2016)

are there warm and cold rewarming patterns after cold stress test?
Leijon-Sundqvist. K, Tegner. Y, Juntti. U, Karp. K, Lehto. N
Thermology International, Vol. 26, nr. 3, s. 81-87
Article in journal

Neurochemical Aftermath of Repetitive Mild Traumatic Brain Injury (2016)

Shahim. P, Tegner. Y, Gustafsson. B, Gren. M, Ärlig. J, Olsson. M, et al.
JAMA Neurology, Vol. 73, nr. 11, s. 1308-1315
Article in journal

Nursing students' perceptions of learning after High Fidelity simulation (2016)

Effects of a Three-step Post-Simulation Reflection Model
Lestander. Ö, Lehto. N, Engström. Å
Nurse Education Today, Vol. 40, s. 219-224
Article in journal

Scrutinized with inadequate control and support Interns' experiences communicating with and writing referrals to hospital radiology departments (2016)

a qualitative study
Kruse. J, Lehto. N, Riklund. K, Tegner. Y, Engström. Å
Radiography, Vol. 22, nr. 4, s. 313-318
Article in journal

Cold-water provocation of hands (2015)

An evaluation of different provocations
Leijon-Sundqvist. K, Lehto. N, Juntti. U, Karp. K, Tegner. Y
Thermology International, Vol. 25, nr. 3, s. 122-123