Acute Physiological and Perceptual Responses to Novel Forms of High-intensity Interval Exercise

Inclusion Criteria: * adult (≥18 years) employees * no health conditions that preclude them from exercise and on no medication, information obtained via their self-report. * able to understand written and spoken English. * participants reporting that they are asthmatic will allowed to participate with medical clearance and instructed to bring their bronchodilator medication and use it when required. Exclusion Criteria: * symptoms of or known presence of heart disease * condition or injury or co-morbidity affecting the ability to undertake exercise * diabetes mellitus * early family history of sudden cardiac death * pregnancy or likelihood of pregnancy.