Cycling is an enjoyable aerobic activity that may provide cardiovascular fitness while reducing the stress on the joints, which often proliferates with aging or misuse. Individuals with compromised musculoskeletal system (e.g., decreased muscle strength, range of motion, and fitness),may potentially benefit from this types of exercise. However, consideration needs to be given to the types of cycling, level of workload, and cadence to reduce the potential side effects. Therefore, evaluation and understating
of the cycling biomechanics and muscles’ activations and synchronizations during cycling could improve our knowledge in developing appropriate exercise regimen for at risk populations. This understanding is even more crucial for those with compromised joint condition. For example, following knee surgery the recommendation is to minimize transverse and varus-valgus force around the knee. Increases in workload may cause unsolicited co-contractions during cycling which could be too stressful on the joint
and may further damage the tendons and soft tissues. This study exhibited the effects of workload on the timing and duration of lower limb muscle activities during
semi-reclined cycling; it also provided a better understanding of the relative contribution of these muscles in cycling performance. Future studies should be conducted
to provide further insight into the muscular differences between the healthy and diseased populations during semi-reclined cycling and to provide proper modifications
in the design of said populations’ exercise routines.