Maximal handgrip strength can predict maximal physical performance in patients with chronic fatigue

Area of Science:

• Exercise Physiology
• Clinical Medicine
• Rehabilitation Science

Background:

• Maximal handgrip strength is a known predictor of exercise performance in various health conditions.
• Its predictive utility in patients with chronic fatigue, however, remains less understood.

Purpose of the Study:

• To assess the capability of maximal handgrip strength in predicting maximal exercise performance.
• To evaluate this relationship in patients diagnosed with chronic fatigue syndrome (CFS) and those with chronic fatigue without CFS.

Main Methods:

• Sixty-six patients with CFS and 32 patients with chronic fatigue were enrolled.
• Maximal physical performance was assessed using a cycle ergometer, measuring peak oxygen uptake and maximal work rate.
• Linear regression analyses were performed to correlate handgrip strength with exercise parameters.

Main Results:

• Pooled data revealed no significant differences between CFS and non-CFS groups.
• Maximal handgrip strength showed a significant positive correlation with peak oxygen uptake.
• Maximal handgrip strength also correlated significantly and positively with maximal work rate.

Conclusions:

• Maximal handgrip strength serves as a reliable predictor of maximal exercise performance.
• This finding supports the use of handgrip strength testing in managing patients with chronic fatigue.