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Indexed/Abstracted in: Chemical Abstracts, CINAHL, Current Contents/Clinical Medicine, EMBASE, PubMed/MEDLINE, Science Citation Index Expanded (SciSearch), Scopus
Impact Factor 1,111
Online ISSN 1827-1928
EXERCISE PHYSIOLOGY AND BIOMECHANICS
Smith J. D. 1, Smith J. D. 2, Kinser K. B. 3, Dugan E. 4, Reed M. 5
1 Department of Health and Physical Education Texas A & M University, Kingsville, TX, USA
2 Biomechanics Laboratory, The Penn State University University Park, PA, USA
3 Department of Health and Physical Education Tarrant County College: South Campus Campus Dr Fort Worth, TX, USA
4 Ball State University, Muncie, IN, USA
5 Northwestern College, Orange City, IA, USA
Aim. This study examined the effects of pushing a jogging stroller on biomechanical and physiological variables. The hypothesis was that running with a stroller for 30 minutes would shorten stride length and increase physiological indices of exercise.
Methods. Experimental design: this was a repeated measures design. Setting: participants were recruited from road races in the Dallas/Fort Worth, TX area. Graded exercise tests were performed in a laboratory setting, field tests were performed on a 400 m all-weather outdoor track. Participants: 5 males and 5 females were assessed. Interventions: participants performed a graded exercise test and 2 field tests. The 1st field test involved running at 75% V.O2max for 30 minutes without a stroller and the 2nd involved running at the same speed with the stroller. Measures: V.O2, stride length, heart rate, lactate, ventilation, and RPE were evaluated.
Results. No differences for V.O2 or stride length were evident. Heart rate (p=0.0001), lactate concentration (p=0.025), ventilation (p=0.009), and RPE (p=0.002) increased from 10 to 30 minutes while running with the stroller. Heart rate (p=0.002), lactate concentration (p=0.0001), ventilation (p=0.006), and RPE (p=0.001) were significantly higher while running with the stroller after 30 minutes compared to running without it.
Conclusion. These results indicate that pushing a stroller affects some indices of exercise intensity while running. Gait does not change. These data do not support an association between stroller use during running and an increase risk of orthopedic injury. Further studies should examine these variables at lower intensities that are run by most recreational joggers.