Self myofascial therapy via foam roller is a common technique used by many athletes and patients to aid recovery, improve range of motion (ROM) and prevent injury. Further, it is suggested that foam rolling improves core stability. However, research about the training effects of foam rolling on measures of core "strength endurance", muscle performance, balance and flexibility is limited. Forty recreationally active females and males (age 18 to 48 yrs) were randomly assigned to a foam roll (FOAM n = 14), a core stabilization (CORE n = 12) and a control group (CG n = 12). FOAM massaged their lower leg muscles (5 exercises) with the foam roll 2 times per week for 8 weeks while CORE was assigned to core stability training including 5 exercises. CG underwent no intervention. Applied tests for outcome measurements were the Bourban trunk muscle strength test (TMS), standing long jump (SLJ), single leg triple hop for distance (SLTH) test, Y-Balance test and stand and reach test. There was an interaction effect (time x treatment) for the dorsal TMS (p = 0.043), demonstrating greater improvements in CORE compared with FOAM and CG with no difference between FOAM and CG. For the stand and reach test a main effect for time (p < 0.001) and time x treatment interaction (p = 0.005) were found, indicating an increase in ROM in FOAM compared with CORE and CG with no difference between the latter. No significant effects were found for balance and muscle performance. An 8-week training with the foam roll is effective in increasing ROM in the stand and reach test without concomitant decreases in core "strength endurance", muscle performance and balance parameters. The core stabilization training was sufficient to improve performance in dorsal TMS test.

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