Holzapfel SD, Ringenbach SDR, Mulvey GM, Sandoval-Menendez AM, Birchfield N, & Tahiliani SR (2016). Differential effects of Assisted Cycling Therapy (ACT) on short-term and working memory of adolescents with Down syndrome. Journal of Cognitive Psychology. Epub ahead of print. Doi 10.1080/20445911.2016.1205592

Ringenbach SDR, Holzapfel SD, Mulvey GM, Richter M, Jimenez A, & Benson A (2016). The effects of Assisted Cycling Therapy (ACT) and voluntary cycling on reaction time and measures of executive function in adolescents with Down syndrome. Journal of Intellectual Disability Research. Epub ahead of print. Doi 10.1111/jir.12275

Holzapfel SD, Chomentowski PJ, Summers LAM, & Sabin MJ (2016). The relationship between digit ratio (2D:4D), VO2max, ventilatory threshold, and running performance. International Journal of Sports Sciences and Fitness, 6(1). Epub.

Bosch PR, Holzapfel SD, & Taustadóttir T (2015). Feasibility of measuring ventilator threshold in adults with stroke-induced hemiparesis: Implications for exercise prescription. Archives of Physical Medicine and Rehabilitation, 96(1), 1779-1784. doi:10.1016/j.apmr.2015.04.023

Holzapfel SD, Ringenbach, SDR, Mulvey GM, Sandoval-Menendez AM, Cook MR, Ganger RO, & Bennett C (2015). Improvements in manual dexterity relate to improvements in cognitive planning after Assisted Cycling Therapy (ACT) in adolescents with Down syndrome. Research in Developmental Disabilities, 45, 261-270. doi:10.1016/j.ridd.2015.08.003

Ringenbach SDR, Lichtsinn KC, & Holzapfel SD (2015). Assisted Cycling Therapy (ACT) improves inhibition in adolescents with autism spectrum disorder. Journal of Intellectual and Developmental Disability, 40(4), 376-387. doi:10.3109/13668250.2015.1080352

Ringenbach, SRD, Zimmerman, K, Chen CC, Mulvey, GM, Holzapfel, SD, Weeks, DJ, & Thaut, MH (2014). Adults with Down syndrome performed repetitive movements fast with continuous music cues. Journal of Motor Learning and Development, 2(3), 47-54.