If you are a bodybuilder or an athlete that undergoes strenuous resistance exercise, then you will have no doubt experienced muscle soreness from tissue damage after your workout. A supplement that has shown signs of improving muscle recovery is L-Carnitine L-Tartrate or LCLT for short.
The repair and building of muscle is signaled by testosterone and androgen receptors. When these two bind together they regulate the signaling of increasing lean muscle mass, protein synthesis and increasing muscle strength. The signaling of androgen receptors is a requirement for this muscle development to occur.
LCLT helps increase the sensitivity of androgen receptors in the body. In fact, research has shown LCLT supplementation displays enhancements towards the hormonal response of people who do resistance exercise, as well as promoting recovery of those who undergo resistance exercise.
By including post-workout feeding in conjunction with LCLT supplementation researchers saw an increase in luteinizing hormone (responsible for testosterone production). The results of this research indicated that LCLT increased androgen receptor content both while resting and post-workout. The fact that testosterone levels fell simultaneously while androgen receptor levels were high indicating that there was a higher uptake of testosterone at the cellular level.
Put simply, LCLT may enhance the uptake of testosterone not by increasing the amount of testosterone produced, but because of reduced muscle damage and increased amount of androgen receptors.
In summary, LCLT supplements (such as Carnipure®) help improve muscle recovery by increasing blood flow, reducing muscle damage and improving the hormone balance of those who undergo resistance exercise.