Yes, research indicates that cycling is good for lung function and improves cardiovascular fitness [
1]. Cycling promotes lung health for people with or without a lung condition, and studies have shown that those with asthma, chronic obstructive pulmonary disease (COPD), and lung cancer can use cycling as part of a pulmonary rehabilitation program [
2,
3]. Lung function can be greatly improved by cycling for about 170–250 minutes per week, however, some people see an improvement in cardiorespiratory fitness from cycling as little as 20 minutes a day [
1,
4].