Massage has been shown to reduce neuromuscular excitability by measuring changes in the Hoffman's reflex (H-reflex) amplitude. A decrease in peak-to-peak H-reflex amplitude suggests a decrease in motoneuron excitability. Others explain, "H-reflex is considered to be the electrical analogue of the stretch reflex...and the reduction" is due to a decrease in spinal reflex excitability. Field (2007) confirms that the inhibitory effects are due to deep tissue receptors and not superficial cutaneous receptors, as there was no decrease in H-reflex when looking at light fingertip pressure massage. It has been noted that "the receptors activated during massage are specific to the muscle being massaged", as other muscles did not produce a decrease in H-reflex amplitude.
Cathy Wong explains in her article “Deep Tissue Massage: Everything You Need to Know” on verywell.com that while Deep Tissue massages can be slightly uncomfortable, they have been known to reduce stress hormones and heart rate while releasing oxytocin and serotonin, which allow the client to experience a boost in mood and relaxation. Deep Tissue massages are often used to relieve chronic aches and pain, stiff necks, upper back, and lower back pain as well as muscle tightness. Therapists treat such issues by utilizing Deep Tissue massages to break up scar tissue and muscle knots and working out adhesions that might be hindering circulation and limiting movement.
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Post-event massage is usually given 1–2 hours after the competition is over in order to give dilated blood vessels a chance to return to their normal condition. Post-event massage is light and gentle in order not to damage already stressed muscles. The goal is to speed up removal of toxic waste products and reduce swelling. Very light effleurage will decrease swelling while light petrissage will help clear away toxins and relieve tense, stiff muscles. Post-event massage can be self-administered on some parts of the body, such as the legs.