Original Research Article
Year: 2019 | Month: June | Volume: 9 | Issue: 6 | Pages: 105-110
Estimation of Energy Expenditure with Two Different Footwear’s in Normal Healthy Females
Shivam N Chopra1, Dr. Manali S Desai2, Dr. Mayuri Ghumatkar2, Dr. Ajay Kumar3
1B.P.Th, DPO’s NETT College of Physiotherapy, Thane, Maharashtra, India.
2M.P.Th, Assistant Professor, DPO’s NETT College of Physiotherapy, Thane.
3Principal, DPO’s NETT College of Physiotherapy, Thane.
Corresponding Author: Shivam N Chopra
ABSTRACT
Background: Footwear plays an important role while walking. Complaints of foot pain and disability are more common in women. The Physiologic Cost Index (PCI) derived by MacGregor is a tool to calculate the energy expenditure, as an alternative to Laboratory & Caloric Measurements.
Objective: To estimate energy expenditure for walking with two different footwears (flat flip flops and sports shoes) in normal healthy females.
Method: 100 Female subjects with Normal BMI aged between 20-30Years were assessed to calculate the PCI, First with flat flip-flops and then with an ideal pair of sports shoes (control group), during walking at their chosen speeds over 15 consecutive lengths of a 40m oval track (total walking distance 600m). Resting and Walking heart rate was recorded. Speed was calculated using the standard mathematical equation (Speed = Distance/time). Two PCI values were calculated for each individual, using the McGregor's Equation.
Result: The Mean Walking Speed with flip-flops was 54.03±4.90meters/minute. Mean walking speed with sports shoes was 56.14±5.45 meters/minute. There was a statistically significant difference in mean PCI for walking between flip flops (0.667 ± 0.15 beats/meter) and sports shoes (0.592 ± 0.17 beats/meter), showing that lesser energy expenditure is required for walking with Sports Shoes than with Flat Flip-Flops.(P Value < 0.05)
Conclusion: The study showed that Walking in Sports Shoes, requires significantly less energy expenditure as compared to the usual flip-flop footwear for the same distance. This concludes that Sports Shoes are energy cost effective when compared to the counterpart.
Key words: Physiologic Cost Index (PCI), McGregor’s Equation, Flat footwear, Ideal Footwear, Walking, sports shoes.