Circuit Training With and Without Upper and Lower Limb Resistance Training in Post-CABG Patients

A randomized controlled trial underlined that dynamic strength training dramaticallyincreased peripheral muscular strength and power when combined with endurance training,which may enhance patient prognosis, according to a study done on patients withcardiovascular disease. According to the study, dynamic strength training is thereforeadvised as a crucial part of cardiovascular rehabilitation. The results showed thatstrength training was associated with lesser increases in intra‐arterial blood pressureand cardiac output, indicating sufficient cardiovascular safety. All things considered,this study questions accepted therapeutic practice and reignites the discussion about thebest dynamic strength training. highlighted the importance of lower limb musclestrengthening in an RCT following CABG surgery; Phase II cardiac rehab showed significantgains in lower limb strength and overall physical and cardiorespiratory performance 6weeks following hospital discharge, as determined by the Short Physical PerformanceBattery and 6MWT. Although, cardiac rehabilitation following coronary artery bypass graft(CABG), has been shown to increase functional capacity and quality of life. Significantgaps exist in determining the exact exercise prescription for symptom alleviation andfunctional recovery. Existing researches primarily focused on conventional continuousaerobic training (CAT) or the circuit‐based training alone, with little attention ontargeted upper and lower limb resistance training in clinical settings. Furthermore, themajority of the literature assesses the outcomes such as peak oxygen uptake (V̇O₂max),six‐minute walk distance (6‐MWD) or general dyspnea scores. While paroxysmal nocturnaldyspnea is clinically significant and unpleasant condition among post‐CABG patients, isunderstudied. Dyspnea is usually examined using non‐specific tools and techniques duringrehabilitation programs but a few studies used cardiac‐specific symptom classificationtools in post‐CABG rehabilitation. In addition, there is a lack of randomized clinicaltrials that investigate combined effects of circuit‐resistance training in Phase‐IIcardiac rehabilitation on multiple domains like dyspnea severity, muscle strength,endurance and functional capacity within a single‐structured rehabilitation program. Somestudies include small sample sizes or shorter study durations which limit the validity ofthe findings and the ability to derive clinically significant conclusions. Furthermore,insufficient information is available from low and middle‐income nations where patientcharacteristics and healthcare resources are differ from those in high‐income countries.This emphasizes the importance of doing context‐specific to help define evidence basedcardiac rehabilitation procedures. Therefore, the current study addresses the gaps bysystematically comparing the effects of circuit training with and without targeted upperand lower limb resistance training using a complete set of outcome variables.