Differences of quadriceps activity during inline lunge by using FMS assessment

Area of Science:

• Exercise Physiology
• Biomechanics
• Sports Science

Background:

• The Functional Movement Screen (FMS) is a tool used to assess movement quality.
• Understanding muscle activation patterns during exercises like the inline lunge is crucial for effective training.

Purpose of the Study:

• To evaluate exercise capacity during the inline lunge using the FMS.
• To compare quadriceps muscle activity in relation to exercise capacity during the inline lunge.

Main Methods:

• Thirty-two healthy adults (12 males, 20 females) participated.
• Surface electromyography (sEMG) measured vastus medialis (VM), rectus femoris (RF), and vastus lateralis (VL) activity.
• Participants performed the inline lunge exercise, with capacity assessed via FMS.

Main Results:

• Significant differences in muscle activity were observed during sitting up and getting up phases.
• In the FMS score 3 group, vastus medialis showed greater activity than vastus lateralis.
• In the FMS score 2 group, vastus lateralis exhibited higher activity than vastus medialis.

Conclusions:

• The inline lunge effectively engages quadriceps muscles.
• Quadriceps muscle activation patterns differ based on FMS-assessed exercise capacity.
• This suggests the inline lunge can be a valuable exercise for targeted quadriceps strengthening.