The efficacy of unsupervised home‐based exercise regimens in comparison to supervised laboratory‐based exercise training upon cardio‐respiratory health facets

Supervised high‐intensity interval training (HIIT) can rapidly improve cardiorespiratory fitness (CRF). However, the effectiveness of time‐efficient unsupervised home‐based interventions is unknown. Eighteen volunteers completed either: laboratory‐HIIT (L‐HIIT); home‐HIIT (H‐HIIT) or home‐isometric hand‐grip training (H‐IHGT). CRF improved significantly in L‐HIIT and H‐HIIT groups, with blood pressure improvements in the H‐IHGT group only. H‐HIIT offers a practical, time‐efficient exercise mode to improve CRF, away from the laboratory environment. H‐IHGT potentially provides a viable alternative to modify blood pressure in those unable to participate in whole‐body exercise.