Johnathan Collett

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Walking models driven by centre of mass (CoM) data obtained from inertial measurement units (IMU) or optical motion capture systems (OMCS) can be used to objectively measure gait. However current models have only been validated within typical developed adults (TDA). The purpose of this study was to compare the projected CoM movement within Parkinson's(More)
We investigated the association between the degree of lesion overlap with the corticospinal tract and walking performance before and after 4-weeks of partial body weight support (PBWS) treadmill training in 18 individuals (ten male, eight female) with a mean age 59 ± 13 years (mean ± SD), range 32–74 years, who were ambulant and 6 months from a subcortical(More)
INTRODUCTION Transcranial magnetic stimulation (TMS) is an important tool to examine neurological pathologies, movement disorders, and central nervous system responses to exercise, fatigue, and training. The reliability has not been examined in a functional locomotor knee extensor muscle. METHODS Within- (n = 10) and between-day (n = 16) reliability of(More)
BACKGROUND The most effective exercise dose has yet to be established for multiple sclerosis (MS). OBJECTIVE The aim of this study was to investigate the effect of different exercise intensities in people with MS. METHODS We completed a randomized comparator study of three cycling exercise intensities, with blinded assessment, was carried out in Oxford.(More)
OBJECTIVE To examine the accuracy of measuring step counts using a pedometer in participants with neurological conditions and healthy volunteers in relation to a manual step count tally. SETTING Oxford Centre for Enablement, Nuffield Orthopaedic Centre NHS Trust, Oxford, UK. SUBJECTS Healthy adults (n = 13, age: mean 29, SD = 12) and adults with(More)
Laboratory based gait analysis techniques are expensive, time consuming and require technical expertise. Inertial measurement units can directly measure temporal parameters and in combination with gait models may provide a solution to obtain spatial gait measurements within daily clinical assessments. However it is not known if a model and standard(More)
OBJECTIVES To understand how patients with Multiple Sclerosis experience and express hope within a rehabilitation setting and use this information to help therapists in a clinical setting. DESIGN One guided interview was undertaken. SETTING Two locations were used for interviews: (1) a rehabilitation centre in Oxfordshire. (2) A meeting location for the(More)
High-intensity exercise induces significant central and peripheral fatigue; however, the effect of endurance training on these mechanisms of fatigue is poorly understood. We compared the effect of cycling endurance training of disparate intensities on high-intensity exercise endurance capacity and the associated limiting central and peripheral fatigue(More)
Previous studies have shown that walking is not a purely automatic motor task but places demands on sensory and cognitive systems. We set out to investigate whether complex walking tasks, as when walking down a steeper gradient while performing a concurrent cognitive task, would demand gait adaptation beyond those required for walking under low-challenge(More)
We examined explosive leg extensor power (LEP) and gait in men and women after a stroke using an experimental observational design. A convenience sample of consecutively referred individuals (8 men, 6 women) with chronic stroke mean age ± SD, range, 46.4 ± 8.4, 32 - 57 years, and able to walk for four minutes were recruited. The test re-test reliability and(More)