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Mobile CPET

Jacqueline C Outermans, Ingrid van de Port, Gert Kwakkel, Johanna M Visser-Meily, Harriet Wittink
BACKGROUND: Reports on the association between aerobic capacity and walking capacity in people after stroke show disparate results. AIM: To determine (1) if the predictive validity of peak oxygen uptake (VO2peak) for walking capacity post stroke is different from that of maximal oxygen uptake (VO2max) and (2) if postural control, hemiplegic lower extremity muscle strength, age and gender distort the association between aerobic capacity and walking capacity. DESIGN: Cross-sectional study...
March 12, 2018: European Journal of Physical and Rehabilitation Medicine
Heidi Weberruss, Johannes Maucher, Renate Oberhoffer, Jan Müller
OBJECTIVE: The body's adaptation to physical exercise is modulated by sympathetic and parasympathetic (vagal) branches of the autonomic nervous system (ANS). Heart rate variability (HRV), the beat-to-beat variation of the heart, is a proxy measure for ANS activity, whereas blood pressure (BP) is an indicator for cardiovascular function. Impaired vagal activity and lower BP is already described after exercise. However, inconsistent results exist about how long vagal recovery takes and how long post-exercise hypotension persists...
January 2018: European Journal of Applied Physiology
Nimesh Patel, Timothy Batten, Andrew Roberton, Doyo Enki, Guy Wansbrough, James Davis
BACKGROUND: Following foot and ankle surgery, patients may be required to mobilise non-weight bearing, requiring a walking aid such as crutches, walking frame or a Stride-on rehabilitation scooter, which aims to reduce the amount of work required. The energy consumption of mobilising using a Stride-on scooter has not previously been investigated, and we aim to establish this. METHODS: Ten healthy volunteers (5 males:5 females) aged 20-40 years mobilised independently, then with each mobility device for 3min at 1km/h on a treadmill, with rest periods, whilst undergoing Cardio-Pulmonary Exercise Testing (CPET)...
August 2016: Foot
Matthew B Sullivan, Katherine H Huang, Julio C Ignacio-Espinoza, Aaron M Berlin, Libusha Kelly, Peter R Weigele, Alicia S DeFrancesco, Suzanne E Kern, Luke R Thompson, Sarah Young, Chandri Yandava, Ross Fu, Bryan Krastins, Michael Chase, David Sarracino, Marcia S Osburne, Matthew R Henn, Sallie W Chisholm
T4-like myoviruses are ubiquitous, and their genes are among the most abundant documented in ocean systems. Here we compare 26 T4-like genomes, including 10 from non-cyanobacterial myoviruses, and 16 from marine cyanobacterial myoviruses (cyanophages) isolated on diverse Prochlorococcus or Synechococcus hosts. A core genome of 38 virion construction and DNA replication genes was observed in all 26 genomes, with 32 and 25 additional genes shared among the non-cyanophage and cyanophage subsets, respectively. These hierarchical cores are highly syntenic across the genomes, and sampled to saturation...
November 2010: Environmental Microbiology
Hanneke A C van Helvoort, Yvonne F Heijdra, Roline C C de Boer, Astrid Swinkels, Hub M H Thijs, P N Richard Dekhuijzen
BACKGROUND: Systemic inflammation and oxidative stress are potential mechanisms for muscle wasting in COPD patients. Six-minute walking testing (6MWT) has been suggested as simple and valid exercise test in COPD that is well tolerated, and reflective of activities of daily living. The present study investigated physiologic and systemic immunologic responses to a 6MWT in muscle-wasted patients with COPD and compared them with maximal cardiopulmonary exercise testing (CPET). METHODS: Ten patients with muscle-wasted COPD were included (fat-free mass index [FFMI]: men, < 16 kg/m2; women, < 15 kg/m2)...
February 2007: Chest
Adrian Attinger, Claudia Tüller, Tjeu Souren, Michael Tamm, Christian Schindler, Martin H Brutsche
QUESTIONS UNDER STUDY: Evaluation of cardiopulmonary capacity and work ability is often done by cardiopulmonary exercise testing under laboratory conditions. Mobile CPET devices allow measurements under specific real-life conditions, i.e.: at the patient's workplace. We investigated the feasibility and validity of mobile CPET in healthy controls. METHOD: We compared oxygen uptake measured by mobile CPET (MCPET) with that by standard CPET (LCPET), and we compared oxygen uptake with markers of self-reported physical exhaustion...
January 7, 2006: Swiss Medical Weekly
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