389 S 900 E
Salt Lake City UT 84102
Medical School: Other - 1982
Accepts Medicare: No
Participates In eRX: Yes
Participates In PQRS: Yes
Participates In EHR: Yes
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Dr. Massimo Testa is associated with these group practices
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Physiological profile of world-record-holder Sherpas. - Wilderness & environmental medicine
Tibetans and Sherpas have long been revered for their physical aptitude at high altitude, and are thought to have lived at high altitude longer than any other culture. We performed physiologic testing on 2 Sherpas who currently hold world records for: (1) most number of ascents of Mt Everest and (2) speed ascent of Mt Everest from base camp to the summit. In doing so, we describe certain physiological aspects of these individuals that may contribute to their abilities at altitude.Anthropometric measurements, blood testing, and electro- and echocardiographic examination as well as pulmonary function tests were performed. Exercise testing consisted of treadmill climbing at increasing incline and speed while wearing a 22 kg backpack in Salt Lake City (1325 m) and Park City (2063 m).Anthropometry, electrocardiography, pulmonary function, strength, and echocardiography were consistent with predicted parameters for the general population. The Sherpas demonstrated appropriate cardiopulmonary response to dynamic exercise similar to moderately fit individuals while performing treadmill testing, both at moderate and high altitude. As expected, the energetic cost increased at higher altitude, likely due to increased respiratory work.The 2 world-record Sherpa climbers were within normal ranges for the specific measurements that were tested. They displayed appropriate cardiopulmonary and physiological responses and exercise performance profiles at moderate and high altitude.Copyright Â© 2011. Published by Elsevier Inc.
Effects of an amino acid carbohydrate drink on exercise performance after consecutive-day exercise bouts. - International journal of sport nutrition and exercise metabolism
This study examined the effect of amino acids in a carbohydrate beverage on cycling performance. Twelve male athletes (28.5 +/- 2.1 yr) cycled at 75% VO2peak for 90 min followed by a ride to exhaustion at 85% VO2peak, before (T1) and on 2 consecutive days (T2 and T3) after 2 weeks of supplementation with 3.6% carbohydrate plus 1% amino acids (AA) or 4.6% carbohydrate-only (CHO) isocaloric beverages. Muscle damage was assessed by plasma creatine kinase (CK), and muscle fatigue by changes in vertical jump pre- to postexercise. Muscle soreness, overall fatigue, and changes in mood state were assessed using questionnaires. Plasma CK was lower for AA in T3 (214.0 +/- 13.5 vs. 485.9 +/- 191.4 U/L immediately post, 213.9 +/- 13.1 vs. 492.0 +/- 199.4 U/L 5 hr post, and 194.9 +/- 17.9 vs. 405.9 +/- 166.6 U/L 24 hr postexercise in AA and CHO, respectively). Time to exhaustion decreased from T2 to T3 only in CHO (10.9 +/- 2.5 to 12.6 +/- 3.2 vs. 13.8 +/- 2.8 to 7.8 +/- 1.5 min in AA and CHO, respectively). Vertical-jump change from pre- to postexercise was greater in T3 for the CHO treatment. Total fatigue score and mood disturbance decreased significantly only with AA in T3. The addition of AA to a carbohydrate beverage after consecutive-day exercise bouts reduced muscle damage as indicated by CK levels, decreased fatigue, and maintained exercise performance compared with consuming carbohydrate alone.
Recognition, diagnosis, and treatment of mitochondrial myopathies in endurance athletes. - Current sports medicine reports
Endurance athletes complaining of muscle pains concomitant with fatigue and exercise intolerance provide a diagnostic challenge. When the most common causes have been ruled out, the presence of metabolic myopathies, including mitochondrial myopathies (MMs), should be considered. MMs are a group of diseases characterized by inadequate mitochondrial ATP production needed for the energetic requirement of the exercising muscles. Athletes with myalgia, fatigue, dyspnea, and muscular cramping should be questioned for history of rhabdomyolysis or myoglobinuria as well as detailed family history, given the predominant matrilinear inheritance of MMs. In all suspected cases, blood lactate and ventilatory response on effort plus muscle biopsy for histologic and molecular studies are recommended. Therapeutic recommendations consist of a set of instructions including genetic counseling, awareness of possible myoglobinuric episodes, and controlled exercise training.
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389 S 900 E Salt Lake City, UT 84102
1050 E South Temple
850 E 300 S Suite 1
389 S 900 E