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Hand Grip Strength and Myocardial Oxygen Consumption Index among Coronary Artery Bypass Grafting Patients.

Sokran SN, Mohan V, Kamaruddin K, Sulaiman MD, Awang Y, Othman IR, Victor SJ - Iran J Med Sci (2015)

Bottom Line: There was significant interactions (P<0.001) for both HGS dominant and non-dominant with large effect sizes (HGS dominant×MVO2 index: hp (2)=0.44; HGS dominant×RPP: hp (2)=0.49).This signifies that peripheral muscle strength of the upper limb (HGS dominant and non-dominant) had different effects on MVO2 index before and after surgery.The interaction graph shows that the increase in MVO2 index after surgery was significantly greater for peripheral muscle strength of the dominant hand when compared to non-dominant.

View Article: PubMed Central - PubMed

Affiliation: Department of Physiotherapy, Faculty of Health Sciences, Universiti Teknologi MARA, Puncak Alam, Selangor, Malaysia; ; KPJ Damansara Specialist Hospital, Damansara Utama, Petaling Jaya, Selangor, Malaysia;

ABSTRACT

Background: Hand grip strength (HGS) is a reliable indicator of peripheral muscle strength. Although, numerous studies have investigated the strength of hand grip; little attention has been given to coronary artery disease (CAD) patients, exploring the relationship between HGS and myocardial oxygen consumption (MVO2) index. The current study aimed to evaluate the interaction between HGS and MVO2 index findings before and after cardiac surgery.

Methods: Twenty-seven patients with CAD had HGS were assessed using handheld dynamometer. HGS for each hand were documented. MVO2 index was assessed using rate pressure product (RPP), which is the product of the heart rate (HR) and systolic blood pressure (SBP). Repeated measures MANOVA were carried out to estimate the interaction between both hands HGS and MVO2 index before and after surgery.

Results: There was significant interactions (P<0.001) for both HGS dominant and non-dominant with large effect sizes (HGS dominant×MVO2 index: hp (2)=0.44; HGS dominant×RPP: hp (2)=0.49). This signifies that peripheral muscle strength of the upper limb (HGS dominant and non-dominant) had different effects on MVO2 index before and after surgery. The interaction graph shows that the increase in MVO2 index after surgery was significantly greater for peripheral muscle strength of the dominant hand when compared to non-dominant.

Conclusion: Patients with CAD had interactions between HGS and oxygen consumption before and after surgery. Hence, HGS might be used as a predictor to assess oxygen consumption among cardiac patients.

No MeSH data available.


Related in: MedlinePlus

Non-dominant side hand grip strength (HGS) and myocardial oxygen consumption index.
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Figure 2: Non-dominant side hand grip strength (HGS) and myocardial oxygen consumption index.

Mentions: Regarding the interaction effects, both revealed significant results (P<0.99) with large effect sizes (HGS dominant×MVO2 index: hp2=0.44; HGS non-dominant×MVO2 index: hp2=0.49). This indicates that peripheral muscle strength of the upper limb (HGS dominant and HGS non-dominant) had different effects on MVO2 index before and after cardiac surgery. Figure 1, depicts the interaction graph which shows that the increase in MVO2 index after surgery with reduced HGS for dominant hand. Figure 2, describes the interaction graph which shows that the increase in MVO2 index after surgery with reduced HGS in non-dominant hand.


Hand Grip Strength and Myocardial Oxygen Consumption Index among Coronary Artery Bypass Grafting Patients.

Sokran SN, Mohan V, Kamaruddin K, Sulaiman MD, Awang Y, Othman IR, Victor SJ - Iran J Med Sci (2015)

Non-dominant side hand grip strength (HGS) and myocardial oxygen consumption index.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4487459&req=5

Figure 2: Non-dominant side hand grip strength (HGS) and myocardial oxygen consumption index.
Mentions: Regarding the interaction effects, both revealed significant results (P<0.99) with large effect sizes (HGS dominant×MVO2 index: hp2=0.44; HGS non-dominant×MVO2 index: hp2=0.49). This indicates that peripheral muscle strength of the upper limb (HGS dominant and HGS non-dominant) had different effects on MVO2 index before and after cardiac surgery. Figure 1, depicts the interaction graph which shows that the increase in MVO2 index after surgery with reduced HGS for dominant hand. Figure 2, describes the interaction graph which shows that the increase in MVO2 index after surgery with reduced HGS in non-dominant hand.

Bottom Line: There was significant interactions (P<0.001) for both HGS dominant and non-dominant with large effect sizes (HGS dominant×MVO2 index: hp (2)=0.44; HGS dominant×RPP: hp (2)=0.49).This signifies that peripheral muscle strength of the upper limb (HGS dominant and non-dominant) had different effects on MVO2 index before and after surgery.The interaction graph shows that the increase in MVO2 index after surgery was significantly greater for peripheral muscle strength of the dominant hand when compared to non-dominant.

View Article: PubMed Central - PubMed

Affiliation: Department of Physiotherapy, Faculty of Health Sciences, Universiti Teknologi MARA, Puncak Alam, Selangor, Malaysia; ; KPJ Damansara Specialist Hospital, Damansara Utama, Petaling Jaya, Selangor, Malaysia;

ABSTRACT

Background: Hand grip strength (HGS) is a reliable indicator of peripheral muscle strength. Although, numerous studies have investigated the strength of hand grip; little attention has been given to coronary artery disease (CAD) patients, exploring the relationship between HGS and myocardial oxygen consumption (MVO2) index. The current study aimed to evaluate the interaction between HGS and MVO2 index findings before and after cardiac surgery.

Methods: Twenty-seven patients with CAD had HGS were assessed using handheld dynamometer. HGS for each hand were documented. MVO2 index was assessed using rate pressure product (RPP), which is the product of the heart rate (HR) and systolic blood pressure (SBP). Repeated measures MANOVA were carried out to estimate the interaction between both hands HGS and MVO2 index before and after surgery.

Results: There was significant interactions (P<0.001) for both HGS dominant and non-dominant with large effect sizes (HGS dominant×MVO2 index: hp (2)=0.44; HGS dominant×RPP: hp (2)=0.49). This signifies that peripheral muscle strength of the upper limb (HGS dominant and non-dominant) had different effects on MVO2 index before and after surgery. The interaction graph shows that the increase in MVO2 index after surgery was significantly greater for peripheral muscle strength of the dominant hand when compared to non-dominant.

Conclusion: Patients with CAD had interactions between HGS and oxygen consumption before and after surgery. Hence, HGS might be used as a predictor to assess oxygen consumption among cardiac patients.

No MeSH data available.


Related in: MedlinePlus