Cardiorespiratory fitness

Researchers are testing whether AI-supported digital coaching combined with Samsung Health activity monitoring can improve cardiorespiratory fitness and physical activity in male university students. The trial enrolls 312 students who already take 5,000 to 7,499 steps per day. Ha…

This trial tests whether a daily beetroot juice supplement, rich in nitrates, can reduce fatigue and improve walking ability in Veterans with Long COVID. Participants receive either the active juice or a placebo for 14 days, alongside physical therapy. The study measures changes …

This study tested whether a 4-week home exercise program, guided by a wearable fitness device and supervised remotely, could help lung cancer patients get in better shape before surgery. Thirty people with early-stage non-small cell lung cancer participated. The goal was to see i…

This study tested whether low-intensity leg exercises with a blood flow restriction cuff could improve cardiorespiratory fitness in women aged 60 and older, compared to moderate-intensity training without the cuff. Sixty women participated, and both methods led to similar gains i…

This study tested an 8-week tele-rehabilitative exercise program for nurses with long COVID. The program included aerobic and strengthening exercises done at home using a wearable knee brace and a smartphone app. Researchers measured changes in fatigue, heart and lung fitness, lo…

This study asks whether people with higher aerobic fitness switch from burning fat to burning carbohydrates later during exercise. Researchers will have 20 healthy, physically active students aged 18 to 30 run on a treadmill until exhaustion, while measuring their oxygen use and …

This trial tests whether taking cordyceps supplements alongside fartlek training — a type of speed-play workout — can reduce muscle damage, inflammation, and oxidative stress in competitive soccer players aged 18–20. Over four weeks, researchers measure blood markers of muscle in…

This study looks at how team athletes' bodies respond to short, intense cycling and longer, moderate cycling. Researchers measure two key substances in saliva: cortisol (a stress hormone) and interleukin-6 (an immune signal). The goal is to see if athletes with different fitness …

This study looks at whether being more fit is linked to lower eye pressure in healthy adults. Researchers measured eye pressure and fitness in nearly 3,000 people aged 18 to 70. The goal is to see if better cardiorespiratory fitness might help protect eye health.

This study looked at whether a 6-week program of sprint interval training (short, intense bursts of exercise) could improve cardiovascular fitness in healthy but sedentary adults aged 20 to 25. Forty participants were split into two groups: one did supervised cycling sprints thre…

This study looked at whether regular exercise and speaking two languages can help older adults keep their language skills and thinking abilities. 233 healthy but inactive older adults took part in a 26-week home-based high-intensity interval training program. Researchers measured…