Effects of cloth face masks on physical and cognitive performance during maximal exercise testing.

Wearing a cloth face mask has been shown to impair exercise performance; it is essential to understand the impact wearing a cloth face mask may have on cognitive performance. Participants completed two maximal cardiopulmonary exercise tests on a cycle ergometer (with and without a cloth face mask) with a concurrent cognitive task. Blood pressure, heart rate, oxygen saturation, perceived exertion, shortness of breath, accuracy, and reaction time were measured at rest, during each exercise stage, and following a 4-minute recovery period. The final sample included 35 adults (age = 26.1 ± 5.8 years; 12 female/23 male). Wearing a cloth face mask was associated with significant decreases in exercise duration (-2:00 ± 3:40 min, P = 0.003), peak measures of maximal oxygen uptake (-818.9 ± 473.3 mL/min, -19.0 ± 48 mL·min-1·kg-1, P < 0.001), respiratory exchange ratio (-0.04 ± 0.08, P = 0.005), minute ventilation (-36.9 ± 18 L/min), oxygen pulse (-3.9 ± 2.3, P < 0.001), heart rate (-7.9 ± 12.6 bpm, P < 0.001), oxygen saturation (-1.5 ± 2.8%, P = 0.004), and blood lactate (-1.7 ± 2.5 mmol/L, P < 0.001). While wearing a cloth face mask significantly impaired exercise performance during maximal exercise testing, cognitive performance was unaffected in this selected group of young, active adults.

Multisite randomized feasibility study of Problem-Solving Training for care partners of adults with traumatic brain injury during inpatient rehabilitation.

BACKGROUND: Problem-Solving Training (PST) during inpatient rehabilitation could provide care partners the skills needed to manage their life roles after discharge. OBJECTIVE: Determine the feasibility of PST+ Education versus Education for care partners of adults with traumatic brain injury (TBI) during inpatient rehabilitation. METHODS: We conducted a multisite randomized feasibility trial across three sites. We present recruitment rates, reasons for refusal to participate, and reasons for non-completion of interventions. We measured client satisfaction, participant engagement, and fidelity for both interventions. We compared change in depressive symptoms and caregiver burden between PST and Education groups. RESULTS: Though the interventions were generally feasible, recruitment and retention rates were lower than anticipated largely due to the COVID-19 pandemic. Participants who completed >3 sessions were less likely to be employed full-time and more often spouses and co-residing. Length of inpatient rehabilitation stay was correlated with number of sessions completed. We observed potential benefits of PST over Education, specifically for reducing depression symptoms and caregiver burden. CONCLUSION: High satisfaction, engagement, and fidelity, overall recruitment and retention, and positive change in outcomes suggest that PST is generally feasible and beneficial for care partners of persons with TBI. Adaptations, such as developing a 3-session version of PST, could improve feasibility.

Reduction in cardiopulmonary and cognitive performance after COVID-19 in a competitive athlete.

A 23-year-old male competitive athlete performed a maximal cardiopulmonary exercise test on a cycle ergometer with a concurrent cognitive test on an iPad 6 days before and 19 weeks after a nonhospitalized COVID-19 illness. Results indicated reductions in time to exhaustion (-3.25 min), peak oxygen consumption (-1.68 mL/kg/min), and accuracy (-8%) during peak exertion despite his return to prior levels of activity. Reductions in functional or cognitive performance in competitive athletes may elicit noticeable differences in athletic performance; therefore, fitness specialists should consider the assessment of both cognitive function as well as aerobic capacity in athletes following COVID-19, regardless of severity, to facilitate safe and effective return to activity.

Feasibility and Pilot Testing of Mobile Health Apps to Supplement 2 Healthy Lifestyle Interventions in Chronic Traumatic Brain Injury.

OBJECTIVES: To determine the feasibility of mobile health (mHealth) apps for enhancing participation of people with chronic traumatic brain injury (TBI) in the Group Lifestyle Balance (GLB-TBI) weight loss intervention and Brain Health Group (BHG-TBI) active control intervention. SETTING: Community. PARTICIPANTS: n = 56 overweight/obese adults with moderate-severe TBI. DESIGN: The GLB-TBI is a 12-month group- and community-based program to promote healthy eating and physical activity. The BHG-TBI is a 12-month group- and community-based program to promote general brain health, designed as an active control condition matched on time, structure, and perceived benefit to the GLB-TBI. In a randomized controlled trial testing the efficacy of the GLB-TBI for weight loss, participants used a group-specific mHealth app providing daily tips customized according to their intervention allocation. MAIN MEASURES: Compliance (percentage of daily prompts read and completed) and participant-reported satisfaction and usability. RESULTS: In conjunction with relevant stakeholders, we developed the content and structure of the GLB-TBI and BHG-TBI apps based on core curriculum components. We incorporated cognitive strategies (app notifications) to address potential cognitive impairment common after TBI. Both apps delivered brief daily educational and motivational "tips" derived directly from their respective curricula. Daily use of the apps varied greatly across participants, with most participants who used the apps completing 10% to 50% of daily content. Participants found the apps to be easy to use, but only some found them helpful. App use was substantially different for those who participated in the intervention during (2020) versus before (2019) the COVID-19 pandemic. CONCLUSIONS: Although enhancing an intensive lifestyle intervention with mHealth technology may be helpful, further refinement is needed to optimize the frequency and delivery methods of mHealth content. Although one might expect remote app use to have been higher during the pandemic, we observed the opposite, potentially due to less hands-on training and ongoing support to use the app and/or general technology fatigue with social distancing.

Effects of wearing a cloth face mask on performance, physiological and perceptual responses during a graded treadmill running exercise test.

OBJECTIVES: To (1) determine if wearing a cloth face mask significantly affected exercise performance and associated physiological responses, and (2) describe perceptual measures of effort and participants' experiences while wearing a face mask during a maximal treadmill test. METHODS: Randomised controlled trial of healthy adults aged 18-29 years. Participants completed two (with and without a cloth face mask) maximal cardiopulmonary exercise tests (CPETs) on a treadmill following the Bruce protocol. Blood pressure, heart rate, oxygen saturation, exertion and shortness of breath were measured. Descriptive data and physical activity history were collected pretrial; perceptions of wearing face masks and experiential data were gathered immediately following the masked trial. RESULTS: The final sample included 31 adults (age=23.2±3.1 years; 14 women/17 men). Data indicated that wearing a cloth face mask led to a significant reduction in exercise time (-01:39±01:19 min/sec, p<0.001), maximal oxygen consumption (VO2max) (-818±552 mL/min, p<0.001), minute ventilation (-45.2±20.3 L/min), maximal heart rate (-8.4±17.0 beats per minute, p<0.01) and increased dyspnoea (1.7±2.9, p<0.001). Our data also suggest that differences in SpO2 and rating of perceived exertion existed between the different stages of the CPET as participant's exercise intensity increased. No significant differences were found between conditions after the 7-minute recovery period. CONCLUSION: Cloth face masks led to a 14% reduction in exercise time and 29% decrease in VO2max, attributed to perceived discomfort associated with mask-wearing. Compared with no mask, participants reported feeling increasingly short of breath and claustrophobic at higher exercise intensities while wearing a cloth face mask. Coaches, trainers and athletes should consider modifying the frequency, intensity, time and type of exercise when wearing a cloth face mask.