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The Lower Body Positive Pressure Treadmill for Knee Osteoarthritis Rehabilitation

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Published on: July 22, 2019

Two modes of weight training programs and patellar stabilization.

Yiu-ming Wong¹, Suk-tak Chan, Kwok-wing Tang

¹The Hong Kong Polytechnic University, Hong Kong.

Journal of Athletic Training

|May 30, 2009

Summary

This summary is machine-generated.

Both strength and hypertrophy training improved patellar stabilizer muscles, enhancing knee extension strength and patellar stability in healthy adults. These findings suggest effective interventions for preventing patellar instability.

Keywords:

magnetic resonance imaging patellofemoral joint quadriceps muscles

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Area of Science:

Orthopaedic and Sports Sciences
Biomechanics
Exercise Physiology

Background:

Underconditioned patellar stabilizing muscles are a potential risk factor for patellar instability.
Targeting these muscles may help prevent or manage patellar instability.

Purpose of the Study:

To investigate the effects of two distinct weight training modalities on the vastus medialis obliquus (VMO) muscle size.
To assess the impact of training on patellar resting position, passive mobility, and knee extensor strength.

Main Methods:

Prospective intervention study with repeated measures in 48 healthy adults.
Random assignment to muscle hypertrophy training, muscle strength training, or a control group for 8 weeks.
VMO cross-sectional area (MRI/ultrasound), patellar tilt, passive mobility, and isometric knee extension torque were measured.

Main Results:

Both hypertrophy and strength training groups demonstrated significant increases in VMO size compared to the control group.
Training interventions also led to improvements in passive patellar stability and knee extension force.
No significant differences were observed between the hypertrophy and strength training groups for the measured outcomes.

Conclusions:

Short-term muscle hypertrophy and strength training programs are effective in reinforcing patellar stabilizing muscles.
These training regimens can enhance patellar stability and knee extensor strength in untrained individuals.
The findings support the use of targeted weight training for managing patellar instability risk.