en عمومى General پژوهشي Research <div style="text-align: justify;"><strong>Purpose</strong>: This study aimed to examine the association between hand grip strength (HGS) and peak expiratory flow rate (PEFR), while controlling for height, weight, and body mass index (BMI).&nbsp;<br> <strong>Methods</strong>: A cross-sectional study was conducted on healthy young adults to measure HGS and PEFR. Multiple regression anthropometric adjustments in peak flow prediction was applied separately for male and female participants. To evaluate the independent contribution of HGS to PEFR, zero-order, partial, and part correlations were calculated after adjusting for height, weight, and BMI.<br> <strong>Results</strong>: HGS was significantly positively correlated with PEFR in both men (r=0.353, P=0.007) and women (r=0.245, P=0.041). In regression analysis, HGS remained a significant predictor of PEFR in men (&beta;=0.385, P=0.015) and women (&beta;=0.293, P=0.035) after adjusting for height, weight, and BMI. Other anthropometric variables showed weak and non-significant associations with PEFR. The partial correlation between HGS and PEFR was r=0.329 in men and r=0.258 in women, indicating an independent contribution beyond body composition measurements.&nbsp;<br> <strong>Conclusion</strong>: HGS emerged as a significant, independent predictor of PEFR, underscoring the importance of muscle strength for pulmonary function. These results indicate that HGS assessment may serve as a practical, noninvasive method for evaluating respiratory health in both clinical and fitness environments.</div> Pulmonary function, Hand grip strength (HGS), Body composition, Physical education 321 332 http://ptj.uswr.ac.ir/browse.php?a_code=A-10-710-1&slc_lang=en&sid=1 Parveen Kumar parveenkumar@crsu.ac.in Yes Department of Physical Education, Chaudhary Ranbir Singh University, Jind, India. Rohit Rathee rohit@crsu.ac.in No Department of Physical Education, Chaudhary Ranbir Singh University, Jind, India. Naveen Sangwan nsangwan880@gmail.com No Department of Physical Education, Chaudhary Ranbir Singh University, Jind, India. Kuldeep Nara kuldeepnara@crsu.ac.in No Department of Physical Education, Chaudhary Ranbir Singh University, Jind, India. Ari Tri Fitrianto aritri.fitrianto@uniska-bjm.ac.id No Department of Sports Education, Faculty of Education and Teaching, Universitas Islam Kalimantan Muhammad Arsyad Al Banjari, Banjarmasin, Indonesia. Hamidur Rahman hamid.pess.just@gmail.com No Department of Physical Education and Sports Science, Jashore University of Science and Technology, Jashore, Bangladesh.