College students report less physical activity and more sedentary behavior during the COVID-19 pandemic

Impact of COVID-19 Pandemic Lockdown on Body Mass Index and Physical Fitness in Chinese College Students

PURPOSE

To explore the impact of COVID-19 pandemic lockdown (CoPL) on body mass index (BMI) and physical fitness among college students.

METHODS

Two one-year cohorts, one with no pandemic lockdown (NoPL) exposure and one with CoPL exposure, were included. Baseline measurements were performed in October 2018 (NoPL) and October 2019 (CoPL), and follow-up data were collected one year later. Participants were divided into "deterioration", "no-change", and "improvement" groups based on their quartile distribution of one-year differences (follow-up-baseline) for lower 25%, middle 50%, and upper 25%. Baseline-category logit regression models were used to determine the odds ratios of deterioration and improvement in BMI and physical fitness, with "no-change" used as baseline.

RESULTS

A total of 2,594 and 2,525 students were included in NoPL and CoPL cohorts, respectively. CoPL was associated with higher odds for deterioration in BMI (male), explosive strength, upper-limb muscle strength, abdominal muscle strength, and cardiorespiratory fitness, but lower odds for deterioration in BMI (female) and flexibility. CoPL was associated with lower odds for improvement in BMI (male), explosive strength, lower-limb and upper-limb muscle strength, and cardiorespiratory fitness, but higher odds for improvement in BMI (female) and flexibility.

DISCUSSION

Not all dimensions of health outcomes were negatively impacted by the lockdown, as deterioration in BMI in males, muscle strength, and cardiorespiratory fitness following the CoPL were more than that in the absence of the lockdown, while deterioration in BMI in females and flexibility were less than that in the absence of the lockdown.

Effects of cognitive load and different exercise intensities on perceived effort in sedentary university students: a follow up of the Cubo Fitness Test validation

Work and intellectually fatiguing environments can significantly influence the health of individuals, which is strictly bound to motor efficiency. In particular, desk workers and university students may have a sedentary lifestyle and a condition of mental fatigue caused by daily routine, which could impair motor efficiency. The assessment is a starting point for enhancing awareness of the individual's psychophysical condition through the perception of one's body motor efficiency, motivating to move towards improvement. This way, a submaximal test based on perceived exertion was developed (Cubo Fitness Test, CFT) and validated in previous studies. Hence, two further studies were employed to enhance the consistency and accuracy of this instrument in different conditions. The first study investigated the internal responsiveness of CFT, evaluating if mental fatigue could affect motor efficiency. The second study investigated which perceived intensity (weak, moderate, strong, or absolute maximum) could be more reliable for applying the CFT (as previous research focused the investigation only on moderate intensity). In the first investigation, participants assessed two stimuli (mental fatigue induced with a Stroop color-word task and a neutral condition based on the vision of a documentary) lasting 60 min each. The quality of psychophysical recovery (total quality recovery) and the mood state (Italian Mood State questionnaire) were evaluated before the stimuli. After the fatiguing or the neutral task, the mood state was newly assessed, together with the evaluation of the workload's characteristics (Nasa TLX) and the CFT motor efficiency. In the second investigation, participants had to perform CFT twice for each at different intensities of Borg's Scale of perceived exertion. Researchers successfully requested to fill out the NASA TLX questionnaire regarding the perceived workload characteristics of CFT, and the reliability of each intensity was assessed. Results seem to enhance the consistency and the accuracy of the instrument. Indeed, findings evidenced that CFT is not influenced by mental fatigue conditions typical of the intellectual work of desk workers and university students for which this test was specifically conceived. Moreover, moderate and strong perceived intensity are the most adequate conditions to assess motor efficiency in these populations.

Associations between sleep disturbance, physical activity, and anxiety sensitivity among college students during the COVID-19 pandemic

The present study sought to examine associations between anxiety sensitivity and both sleep and physical activity among college students, who are particularly vulnerable to sleep disturbance, decreased physical activity, and the development of psychopathology, especially in the wake of the COVID-19 pandemic. Participants were 683 college students (Mage = 20.33, SD = 3.58; 72% female; 70.3% White) who completed self-report measures online for course credit. Results indicated that after controlling for the effects of age, gender identity, and race, greater sleep disturbance was significantly associated with higher overall anxiety sensitivity (7% unique variance; β = 0.27, t = 6.67, p < .001) as well as its three subdomains (physical concerns: 4% variance; β = 0.21, t = 4.97, p < .001; cognitive concerns: 6% variance; β = 0.25, t = 6.17, p < .001; social concerns: 6% variance; β = 0.26, t = 6.22, p < .001). Additionally, more time spent walking was associated with greater anxiety sensitivity physical concerns (1% variance; β = 0.11, t = 2.52, p = .012) and greater vigorous intensity physical activity was associated with lower anxiety sensitivity social concerns (1% variance; β = -0.13, t = -2.76, p = .006). These findings suggest that sleep problems may be more universally relevant to anxiety sensitivity than physical activity and interventions to promote healthier sleep may be useful for decreasing anxiety sensitivity in college students.